The revision list can be viewed directly by clicking the title page. The revision list summarizes the locations of revisions and additions. Details should always be checked by referring to the relevant text. 16 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM User's Manual: Hardware Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series H8S/2646 H8S/2645 H8S/2647 H8S/2648 H8S/2646R H8S/2648R HD6432646 HD6432645 HD6432647 HD6432648 HD64F2646R HD64F2648R Rev.7.00 2010.06 Notice 1. All information included in this document is current as of the date this document is issued. Such information, however, is subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please confirm the latest product information with a Renesas Electronics sales office. Also, please pay regular and careful attention to additional and different information to be disclosed by Renesas Electronics such as that disclosed through our website. 2. Renesas Electronics does not assume any liability for infringement of patents, copyrights, or other intellectual property rights of third parties by or arising from the use of Renesas Electronics products or technical information described in this document. No license, express, implied or otherwise, is granted hereby under any patents, copyrights or other intellectual property rights of Renesas Electronics or others. 3. You should not alter, modify, copy, or otherwise misappropriate any Renesas Electronics product, whether in whole or in part. 4. Descriptions of circuits, software and other related information in this document are provided only to illustrate the operation of semiconductor products and application examples. You are fully responsible for the incorporation of these circuits, software, and information in the design of your equipment. Renesas Electronics assumes no responsibility for any losses incurred by you or third parties arising from the use of these circuits, software, or information. 5. When exporting the products or technology described in this document, you should comply with the applicable export control laws and regulations and follow the procedures required by such laws and regulations. You should not use Renesas Electronics products or the technology described in this document for any purpose relating to military applications or use by the military, including but not limited to the development of weapons of mass destruction. Renesas Electronics products and technology may not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited under any applicable domestic or foreign laws or regulations. 6. Renesas Electronics has used reasonable care in preparing the information included in this document, but Renesas Electronics does not warrant that such information is error free. Renesas Electronics assumes no liability whatsoever for any damages incurred by you resulting from errors in or omissions from the information included herein. 7. Renesas Electronics products are classified according to the following three quality grades: "Standard", "High Quality", and "Specific". The recommended applications for each Renesas Electronics product depends on the product's quality grade, as indicated below. You must check the quality grade of each Renesas Electronics product before using it in a particular application. You may not use any Renesas Electronics product for any application categorized as "Specific" without the prior written consent of Renesas Electronics. Further, you may not use any Renesas Electronics product for any application for which it is not intended without the prior written consent of Renesas Electronics. Renesas Electronics shall not be in any way liable for any damages or losses incurred by you or third parties arising from the use of any Renesas Electronics product for an application categorized as "Specific" or for which the product is not intended where you have failed to obtain the prior written consent of Renesas Electronics. The quality grade of each Renesas Electronics product is "Standard" unless otherwise expressly specified in a Renesas Electronics data sheets or data books, etc. "Standard": Computers; office equipment; communications equipment; test and measurement equipment; audio and visual equipment; home electronic appliances; machine tools; personal electronic equipment; and industrial robots. "High Quality": Transportation equipment (automobiles, trains, ships, etc.); traffic control systems; anti-disaster systems; anticrime systems; safety equipment; and medical equipment not specifically designed for life support. "Specific": Aircraft; aerospace equipment; submersible repeaters; nuclear reactor control systems; medical equipment or systems for life support (e.g. artificial life support devices or systems), surgical implantations, or healthcare intervention (e.g. excision, etc.), and any other applications or purposes that pose a direct threat to human life. 8. You should use the Renesas Electronics products described in this document within the range specified by Renesas Electronics, especially with respect to the maximum rating, operating supply voltage range, movement power voltage range, heat radiation characteristics, installation and other product characteristics. Renesas Electronics shall have no liability for malfunctions or damages arising out of the use of Renesas Electronics products beyond such specified ranges. 9. Although Renesas Electronics endeavors to improve the quality and reliability of its products, semiconductor products have specific characteristics such as the occurrence of failure at a certain rate and malfunctions under certain use conditions. Further, Renesas Electronics products are not subject to radiation resistance design. Please be sure to implement safety measures to guard them against the possibility of physical injury, and injury or damage caused by fire in the event of the failure of a Renesas Electronics product, such as safety design for hardware and software including but not limited to redundancy, fire control and malfunction prevention, appropriate treatment for aging degradation or any other appropriate measures. Because the evaluation of microcomputer software alone is very difficult, please evaluate the safety of the final products or system manufactured by you. 10. Please contact a Renesas Electronics sales office for details as to environmental matters such as the environmental compatibility of each Renesas Electronics product. Please use Renesas Electronics products in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. Renesas Electronics assumes no liability for damages or losses occurring as a result of your noncompliance with applicable laws and regulations. 11. This document may not be reproduced or duplicated, in any form, in whole or in part, without prior written consent of Renesas Electronics. 12. Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this document or Renesas Electronics products, or if you have any other inquiries. (Note 1) "Renesas Electronics" as used in this document means Renesas Electronics Corporation and also includes its majorityowned subsidiaries. (Note 2) "Renesas Electronics product(s)" means any product developed or manufactured by or for Renesas Electronics. Page ii of xxxviii REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 General Precautions in the Handling of MPU/MCU Products The following usage notes are applicable to all MPU/MCU products from Renesas. For detailed usage notes on the products covered by this manual, refer to the relevant sections of the manual. If the descriptions under General Precautions in the Handling of MPU/MCU Products and in the body of the manual differ from each other, the description in the body of the manual takes precedence. 1. Handling of Unused Pins Handle unused pins in accord with the directions given under Handling of Unused Pins in the manual. The input pins of CMOS products are generally in the high-impedance state. In operation with an unused pin in the open-circuit state, extra electromagnetic noise is induced in the vicinity of LSI, an associated shoot-through current flows internally, and malfunctions may occur due to the false recognition of the pin state as an input signal. Unused pins should be handled as described under Handling of Unused Pins in the manual. 2. Processing at Power-on The state of the product is undefined at the moment when power is supplied. The states of internal circuits in the LSI are indeterminate and the states of register settings and pins are undefined at the moment when power is supplied. In a finished product where the reset signal is applied to the external reset pin, the states of pins are not guaranteed from the moment when power is supplied until the reset process is completed. In a similar way, the states of pins in a product that is reset by an on-chip power-on reset function are not guaranteed from the moment when power is supplied until the power reaches the level at which resetting has been specified. 3. Prohibition of Access to Reserved Addresses Access to reserved addresses is prohibited. The reserved addresses are provided for the possible future expansion of functions. Do not access these addresses; the correct operation of LSI is not guaranteed if they are accessed. 4. Clock Signals After applying a reset, only release the reset line after the operating clock signal has become stable. When switching the clock signal during program execution, wait until the target clock signal has stabilized. When the clock signal is generated with an external resonator (or from an external oscillator) during a reset, ensure that the reset line is only released after full stabilization of the clock signal. Moreover, when switching to a clock signal produced with an external resonator (or by an external oscillator) while program execution is in progress, wait until the target clock signal is stable. 5. Differences between Products Before changing from one product to another, i.e. to one with a different type number, confirm that the change will not lead to problems. The characteristics of MPU/MCU in the same group but having different type numbers may differ because of the differences in internal memory capacity and layout pattern. When changing to products of different type numbers, implement a system-evaluation test for each of the products. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page iii of xxxviii Page iv of xxxviii REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Preface The H8S/2646 Group is a series of high-performance microcontrollers with a 32-bit H8S/2600 CPU core, and a set of on-chip supporting functions required for system configuration. This LSI is equipped with a 16-bit timer pulse unit (TPU), programmable pulse generator (PPG), watchdog timer (WDT), serial communication interface (SCI), A/D converter, motor control PWM timer (PWM), LCD controller/driver (LCDC), and I/O ports as on-chip supporting modules. In addition, data transfer controller (DTC) is provided, enabling high-speed data transfer without CPU intervention. This LSI is suitable for use as an embedded processor for high-level control systems. Its on-chip ROM are flash memory (F-ZTATTM*) that provides flexibility as it can be reprogrammed in no time to cope with all situations from the early stages of mass production to full-scale mass production. This is particularly applicable to application devices with specifications that will most probably change. Note: * F-ZTAT is a trademark of Renesas Electronics Corp. Target Users: This manual was written for users who will be using the H8S/2646 Group in the design of application systems. Members of this audience are expected to understand the fundamentals of electrical circuits, logical circuits, and microcomputers. Objective: This manual was written to explain the hardware functions and electrical characteristics of the H8S/2646 Group to the above audience. Refer to the H8S/2600 Series, H8S/2000 Series Software Manual for a detailed description of the instruction set. Notes on reading this manual: * In order to understand the overall functions of the chip Read the manual according to the contents. This manual can be roughly categorized into parts on the CPU, system control functions, peripheral functions and electrical characteristics. * In order to understand the details of the CPU's functions Read the H8S/2600 Series, H8S/2000 Series Software Manual. * In order to understand the details of a register when its name is known The addresses, bits, and initial values of the registers are summarized in appendix B, Internal I/O Register. Example: Bit order: The MSB is on the left and the LSB is on the right. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page v of xxxviii Related Manuals: The latest versions of all related manuals are available from our web site. Please ensure you have the latest versions of all documents you require. http://www.renesas.com/ H8S/2646 Group Manuals: Document Title Document No. H8S/2646 Group Hardware Manual This manual H8S/2600 Series, H8S/2000 Series Software Manual REJ09B0139 Users Manuals for Development Tools: Document Title Document No. H8S, H8/300 Series C/C++ Compiler, Assembler, Optimized Linkage Editor User's Manual REJ10J2039 H8S, H8/300 Series Simulator Debugger User's Manual REJ10B0211 High-performance Embedded Workshop User's Manual REJ10J2037 Application Note: Document Title Document No. H8S Series Technical Q & A REJ05B0397 Page vi of xxxviii REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Main Revisions for This Edition Item Page Revision (See Manual for Details) All Company name and brand names amended (Before) Renesas Technology Corp. (After) Renesas Electronics Corp. 1.1 Overview 4 Table 1.1 Overview Table amended Item Specification Memory * Flash memory or mask ROM * High-speed static RAM Product Name ROM RAM H8S/2646, H8S/2646R 128 kbytes 4 kbytes H8S/2648, H8S/2648R 8 108 107 106 105 104 103 102 101 100 99 98 97 96 95 Figure 1.2 (1) H8S/2646, H8S/2646R, and H8S/2645 Pin Arrangement (FP-144J/FP144JV, FP144G/FP-144GV: Top View) HTxD HRxD P50 P51 109 110 111 112 Note: * The FWE pin is a NC pin in the mask ROM versions. Figure amended and note added P17/PO15/TIOCB2/TCLKD P16/PO14/TIOCA2/IRQ1 P15/PO13/TIOCB1/TCLKC P14/PO12/TIOCA1/IRQ0 P13/PO11/TIOCD0/TCLKB P12/PO10/TIOCC0/TCLKA P11/PO9/TIOCB0 P10/PO8/TIOCA0 PF7/ PF3/LWR/ADTRG/IRQ3 PF0/IRQ2 FWE* EXTAL VSS 9 108 107 106 105 104 103 102 101 100 99 98 97 96 95 Figure 1.2 (2) H8S/2648, H8S/2648R, and H8S/2647 Pin Arrangement (FP-144J/FP144JV, FP144G/FP-144GV: Top View) Figure amended and note added P17/PO15/TIOCB2/TCLKD P16/PO14/TIOCA2/IRQ1 P15/PO13/TIOCB1/TCLKC P14/PO12/TIOCA1/IRQ0 P13/PO11/TIOCD0/TCLKB P12/PO10/TIOCC0/TCLKA P11/PO9/TIOCB0 P10/PO8/TIOCA0 PF7/ PF3/LWR/ADTRG/IRQ3 PF0/IRQ2 FWE* EXTAL VSS 1.3.1 Pin Arrangement HTxD HRxD P50/TxD2 P51/RxD2 109 110 111 112 Note: * The FWE pin is a NC pin in the mask ROM versions. 2.8.1 Overview 64 Figure 2.14 Processing States Figure amended Reset state The CPU and all on-chip supporting modules have been initialized and are stopped. Exception-handling state A transient state in which the CPU changes the normal processing flow in response to a reset, trace, interrupt, or trap instruction. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page vii of xxxviii Item Page Revision (See Manual for Details) 2.8.3 ExceptionHandling State 66 Description amended 3.4 Pin Functions in Each Operating Mode 83 3.5 Address Map in Each Operating Mode The exception-handling state is a transient state that occurs when the CPU alters the normal processing flow due to a reset, trace, interrupt, or trap instruction. 85 Figure 3.1 (2) Address Map in Each Operating Mode in the H8S/2645 and H8S/2647 Table amended Port Mode 4 Mode 5 Port A P/A* P/A* Port B P/A* P/A* Figure amended Mode 7 (advanced single-chip mode) H'000000 On-chip ROM H'00FFFF H'010000 Reserved area H'01FFFF H'FFE800 On-chip RAM H'FFEFBF H'FFF800 Internal I/O registers H'FFFF3F H'FFFF60 H'FFFFC0 H'FFFFFF 4.1.1 Exception 87 Handling Types and Priority Page viii of xxxviii Internal I/O registers On-chip RAM Description amended As table 4.1 indicates, exception handling may be caused by a reset, trace, direct transition, trap instruction, or interrupt. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Item Page Revision (See Manual for Details) 4.7 Notes on Use of the Stack 97 Figure amended CCR SP R1L SP PC PC SP 5.2.2 Interrupt 103 Priority Registers A to H, J, K, M (IPRA to IPRH, IPRJ, IPRK, IPRM) H'FFFEFA H'FFFEFB H'FFFEFC H'FFFEFD H'FFFEFE H'FFFEFF Table amended Bits Register 6 to 4 2 to 0 IPRK SCI channel 1 SCI channel 2 IPRM PWM channel 1, 2 HCAN *2 Table 5.3 Correspondence between Interrupt Sources and IPR Settings 5.4.2 Interrupt Control Mode 0 117 Figure amended Yes IRQ1 No Yes RM0 (HCAN) Yes Save PC and CCR I1 Read vector address Branch to interrupt handling routine 9.8.3 Pin Functions 262 Table 9.13 PA7 to PA4 Pin Functions Table amended Pin H8S/2646 H8S/2646R H8S/2645 Selection Method and Pin Functions PA7/A23/ Switches as follows according to the combinations of bits SGS3 to SGS0 of LCD SEG24 to driver LPCR, bits AE3 to AE0 of PFCR, and bits PA7DDR to PA4DDR of PADDR. PA4/A20/ Setting of Port S EG output SEG21 SGS3 to SGS0 H8S /2646, H8S/2648, H8S/2646R, H8S/2648R, H8S/2645 H8S/2647 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page ix of xxxviii Item Page Revision (See Manual for Details) 9.8.3 Pin Functions 263 Table amended Pin Selection Method and Pin Functions Table 9.14 PA3 to PA0 Pin Functions PA3/A19/COM4 to Switches as follows according to the combinations of bits SGS3 to SGS0 of LCD driver LPCR, bits AE3 to AE0 of PFCR, and bits PA3DDR to PA0DDR of PA0/A16/COM1 PADDR. 10.7 Usage Notes 391 Description added Interrupts and Module Stop Mode: If module stop mode is entered when an interrupt has been requested, it will not be possible to clear the CPU interrupt source or the DTC activation source. Interrupts should therefore be disabled before entering module stop mode. Interrupt in Subactive Mode/Watch Mode: If subactive mode/watch mode is entered when an interrupt has been requested, it will not be possible to clear the CPU interrupt source. Interrupts should therefore be disabled before entering subactive mode/watch mode. 12.1.2 Block Diagram 420 Figure and note amended Overflow Figure 12.1 (a) Block Diagram of WDT0 WOVI0 (interrupt request signal) Internal reset signal*1 Interrupt control Clock Reset control Clock select /2*2 /64*2 /128*2 /512*2 /2048*2 /8192*2 /32768*2 /131072*2 Internal clock sources Notes: 1. The type of internal reset signal depends on a register setting. 2. In subactive mode and subsleep mode, operates as SUB. 15.1.3 Pin Configuration 539 15.2.4 Mailbox Configuration Register (MBCR) 546 Bits 15 to 9 and 7 to 0 Page x of xxxviii Description amended A bus driver is necessary between the pins and the CAN bus. A HA13721 compatible model is recommended. Table amended Bit y MBCRx Description 0 Corresponding mailbox is set for transmission 1 Corresponding mailbox is set for reception (Initial value) (x = 15 to 1, y = 15 to 9 and 7 to 0) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Item Page Revision (See Manual for Details) 15.2.5 Transmit Wait Register (TXPR) 547 Table amended Bits 15 to 9 and 7 to 0 Bit y TXPRx Description 0 Transmit message idle state in corresponding mailbox (Initial value) [Clearing condition] Message transmission completion and cancellation completion 1 Transmit message transmit wait in corresponding mailbox (CAN bus arbitration) (x = 15 to 1, y = 15 to 9 and 7 to 0) 15.2.6 Transmit Wait Cancel Register (TXCR) 548 Bits 15 to 9 and 7 to 0 Table amended Bit y TXCRx Description 0 Transmit message cancellation idle state in corresponding mailbox (Initial value) [Clearing condition] Completion of TXPR clearing (when transmit message is canceled normally) 1 TXPR cleared for corresponding mailbox (transmit message cancellation) (x = 15 to 1, y = 15 to 9 and 7 to 0) 15.2.7 Transmit Acknowledge Register (TXACK) 549 Table amended Bit y TXACKx Bits 15 to 9 and 7 to 0 Description 0 [Clearing condition] Writing 1 (Initial value) 1 Completion of message transmission for corresponding mailbox (x = 15 to 1, y = 15 to 9 and 7 to 0) 15.2.8 Abort Acknowledge Register (ABACK) 550 Table amended Bit y ABACKx Bits 15 to 9 and 7 to 0 Description 0 [Clearing condition] Writing 1 (Initial value) 1 Completion of transmit message cancellation for corresponding mailbox (x = 15 to 1, y = 15 to 9 and 7 to 0) 15.2.17 Local Acceptance Filter Masks (LAFML, LAFMH) 564 LAFMH Bits 7 to 0 and 15 to 13 Table amended Bit y LAFMHx Description 0 Stored in RX0 (receive-only mailbox) depending on bit match between RX0 message identifier and receive message identifier (Initial value) 1 Stored in RX0 (receive-only mailbox) regardless of bit match between RX0 message identifier and receive message identifier (x = 15 to 5, y = 15 to 13 and 7 to 0) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page xi of xxxviii Item Page Revision (See Manual for Details) 15.2.17 Local Acceptance Filter Masks (LAFML, LAFMH) 564 Description and table amended LAFMH Bits 9 and 8, LAFML bits 15 to 0--18-Bit Identifier Filter (LAFMHx, LAFMLy): Filter mask bits for the 18 bits of the receive message identifier (extended). LAFMH Bits 9 and 8, LAFML bits 15 to 0 Bit y LAFMHx LAFMLy Description 0 Stored in RX0 (receive-only mailbox) depending on bit match between RX0 message identifier and receive message identifier (Initial value) 1 Stored in RX0 (receive-only mailbox) regardless of bit match between RX0 message identifier and receive message identifier (x = 1 and 0, y = 15 to 0) 15.2.18 Message Control (MC0 to MC15) 567 MCx[1] Bits 3 to 0-- Data Length Code (DLC): Table amended Bit 3 DLC3 Bit 2 DLC2 Bit 1 DLC1 Bit 0 DLC0 0 0 0 0 Data length = 0 bytes 1 Data length = 1 byte 1 1 0 1 1 15.4 CAN Bus Interface 595 Figure 15.14 HighSpeed Interface Using HA13721 0/1 0/1 Description 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0/1 Data length = 8 bytes Description, figure title, and figure amended A bus transceiver IC is necessary to connect the H8S/2646 Group chip to a CAN bus. A HA13721 transceiver IC, or compatible device, is recommended. 120 Chip Vcc HA13721 Port MODE Vcc HRxD RxD CANH HTxD CAN bus TxD CANL NC Vref GND 120 Note: NC: No connection 18.4 Usage Notes 669 Page xii of xxxviii Newly added REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Item Page Revision (See Manual for Details) 20.2.2 Mode Transitions 677 Figure note amended Notes: Figure 20.2 Flash Memory State Transitions 20.7.2 ProgramVerify Mode 2. This LSI transits to programmer mode by using the dedicated PROM programmer. 704 Figure 20.11 Program/ProgramVerify Flowchart Figure title and figure amended Increment address Note 6. Write Pulse Width Number of Writes n Write Time (tsp) sec 1 2 3 4 5 6 7 8 9 10 11 12 13 30 30 30 30 30 30 200 200 200 200 200 200 200 998 999 1000 200 200 200 No Write data = verify data? m=1 Yes 6 n? No Yes Additional-programming data computation Transfer additional-programming data to additional-programming data area Transfer reprogram data to reprogram data area No Program data storage area (128 bytes) Reprogram data storage area (128 bytes) Additional-programming data storage area (128 bytes) Yes Clear PV bit in FLMCR1 6 n? *7 No Yes Successively write 128-byte data from additional1 programming data area in RAM to flash memory * Sub-Routine-Call Write Pulse (Additional programming) m = 0? No n (N)? Yes Clear SWE bit in FLMCR1 Wait (tcswe) s End of programming 20.7.3 Erase Mode 705 *4 128-byte data verification completed? Wait (tcpv) s RAM *4 *3 Reprogram data computation *7 No Yes Clear SWE bit in FLMCR1 *7 Wait (tcswe) s *7 Programming failure Description amended Next, the watchdog timer (WDT) is set to prevent overerasing due to program runaway, etc. Set a value of approximately 19.8 ms as the WDT overflow period. ... REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page xiii of xxxviii Item Page Revision (See Manual for Details) 20.7.4 EraseVerify Mode 707 Figure title and figure amended Start Figure 20.12 Erase/Erase-Verify Flowchart *1 Set SWE bit in FLMCR1 Wait (tsswe) s *5 n=1 Set EBR1 or EBR2 *3, *4 Enable WDT Set ESU bit in FLMCR1 Wait (tsesu) s *5 Start of erase Set E bit in FLMCR1 Wait (tse) ms *5 Clear E bit in FLMCR1 Erase halted Wait (tce) s *5 Clear ESU bit in FLMCR1 Wait (tcesu) s *5 Disable WDT Set EV bit in FLMCR1 Wait (tsev) s nn+1 *5 Set block start address as verify address H'FF dummy write to verify address Wait (tsevr) s Read verify data Increment address Verify data = all 1s? *5 *2 NG OK NG Last address of block? OK Clear EV bit in FLMCR1 *5 Wait (tcev) s *5 n (N)? OK Clear SWE bit in FLMCR1 OK Clear SWE bit in FLMCR1 *5 Wait (tcswe) s Wait (tcswe) s End of erasing Erase failure Title and description amended 21.3.1 Connecting 724 a Crystal Resonator Figure amended Page xiv of xxxviii NG All erase block erased? 20.11 Programmer 714 Mode Figure 21.2 Connection of Crystal Resonator (Example) *5 Wait (tcev) s *4 NG Clear EV bit in FLMCR1 *5 In programmer mode, a PROM programmer can be used to perform programming/erasing via a socket adapter, just as for a discrete flash memory. Use a PROM programmer that supports the Renesas Technology's 128-kbyte flash memory on-chip MCU device type (FZTAT128V5A). CL1 EXTAL XTAL Rd CL2 CL1 = CL2 = 10 to 22 pF: if 4 f 16 MHz CL1 = CL2 = 10 to 15 pF: if 16 < f 20 MHz REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Item Page Revision (See Manual for Details) 21.7 Subclock Oscillator 728 Figure note amended Note: * C1 and C2 are reference values that include the parasitic capacity. Figure 21.6 Example Connection of 32.768 kHz Quartz Oscillator 22.1 Overview 732 Table 22.1 LSI Internal States in Each Mode 22.2.5 Module 744 Stop Control Register (MSTPCR) 23.3 DC Characteristics 761 Table amended Function HighSpeed MediumSpeed Sleep Peripheral WDT1 functions Fu nction- Function- Function- Function- Subclock Subclock Subclock Halted ing ing ing ing operation operation operation (retained) Halted (reset) WDT0 Fu nction- Function- Function- Function- Halted Subclock Subcloc Halted ing ing ing ing (retained) operation operation (retained) Halted (reset) Symbol RES, STBY, NMI, FWE, MD2 to MD0 Min VIL -0.3 Hardware Standby Typ Max Unit Test Conditions -- 0.5 V EXTAL -0.3 -- 0.8 Ports 1 to 3, 5, A to F, H, J, K -0.3 -- 0.8 HRxD -0.3 -- VCC x 0.2 Ports 4, 9 -0.3 -- AVCC x 0.2 Min Typ Max Unit Test Conditions -- 2.0 10 A -- -- 80 -- 10 20 mA A Item Symbol Standby mode LCD power During LPlCC supply port operation power supply Standby mode current -- 0.1 10 -- -- 80 1.0 2.0 -- -- -- 5.0 A Reference current AlCC -- 2.5 4.0 mA -- -- 5.0 A VRAM 2.0 -- -- V Idle 3 Ta 50C 50C < Ta AlCC During A/D conversion Ta 50C 50C < Ta Analog During A/D power supply conversion current Idle RAM standby voltage* Jun 10, 2010 Software Subsleep Standby Table and note amended Current 2 dissipation* REJ09B0257-0700 Rev. 7.00 Subactive MSTPCRA to MSTPCRC are initialized to H'3FFFFF by a reset and in hardware standby mode. MSTPCRD is initialized to B'11****** by a reset and in hardware standby mode. They are not initialized in software standby mode. Input low voltage 763 Watch Description deleted Item Table 23.2 DC Characteristics Module Stop mA AVCC = 5.0 V Vref = 5.0 V Page xv of xxxviii Item Page Revision (See Manual for Details) 23.3 DC Characteristics 764 Notes: 3. The values are for VRAM VCC < 3.0 V, VIH min = VCC -0.1 V, and VIL max = 0.1 V. Table 23.2 DC Characteristics 765 Table 23.3 Permissible Output Currents 4. ICC depends on VCC and f as follows: ICC max. = 1.0 (mA) + 0.72 (mA/(CMHz x V))x VCC x f (at normal operation) ICC max. = 1.0 (mA) + 0.58 (mA/(CMHz x V))x VCC x f (at sleep) Table amended Symbol Min Typ Max Unit Permissible output All output pins except low current (per pin) PWM1A to PWM1H, PWM2A to PWM2H IOL -- -- 10 mA PWM1A to PWM1H, PWM2A to PWM2H IOL -- -- 25 m -- -- 30 -- -- Total of all output pins except PWM1A to PWM1H, PWM2A to PWM2H IOL -- -- Total of PWM1A to PWM1H, PWM2A to PWM2H IOL -- -- 150 mA Ta = 85C -- -- 180 mA Ta = 25C -- -- 220 mA Ta =-40C -IOH -- -- 2.0 mA -IOH -- -- 25 mA Ta = 85C -- -- 30 mA Ta = 25C -- -- 40 mA Ta =-40C - IOH -- -- 40 mA IOL -- -- 150 mA -- -- 180 mA Ta = 25C -- -- 220 mA Ta =-40C tRXS tRXH Permissible output low current (total) Permissible output All output pins except high current (per pin) PWM1A to PWM1H, PWM2A to PWM2H PWM1A to PWM1H, PWM2A to PWM2H Permissible output high current (total) Total of all output pins except PWM1A to PWM1H, PWM2A to PWM2H - of PWM1A to Total PWM1H, PWM2A to PWM2H 23.4.4 Timing of 780 On-Chip Supporting Modules Figure 23.18 SCI Input/Output Timing (Clock Synchronous Mode) Test condition Item A Ta = 85C mA Ta = 25C 40 mA Ta =-40C 80 mA Ta = 85C Figure amended SCKn tTXD TxDn (transmit data) RxDn (receive data) H8S/2646, H8S/2646R, H8S/2645: n = 0, 1 H8S/2648, H8S/2648R, H8S/2647: n = 0 to 2 Page xvi of xxxviii REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Item Page 23.4.4 Timing of 781 On-Chip Supporting Modules Figure 23.20 HCAN Input/Output Timing Revision (See Manual for Details) Figure amended CK VOL VOL tHTXD HTxD (transmit data) tHRXS tHRXH HRxD (receive data) 23.6 LCD Characteristics 783 Table 23.9 LCD Characteristics Table amended Condition Item Applicable Pins Symbol Min Typ Max Unit Test Conditions Segment driver step-down voltage SEG1 to SEG24 (H8S/2646, H8S/2646R, H8S/2645) VDS -- -- 0.6 V ID = 2 A* 1 VDC -- -- 0.3 V ID = 2 A* 1 k Between V1 and VSS SEG1 to SEG40 (H8S/2648, H8S/2648R, H8S/2647) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Common driver step-down voltage COM1 to COM4 LCD power supply division resistor R LCD 40 300 1000 LCD voltage V1 VLCD 4.5 -- LPVCC V * 2 Page xvii of xxxviii Item Page Revision (See Manual for Details) 23.7 Flash Memory Characteristics 784 Table amended Table 23.10 Flash Memory Characteristics Item Symbol Min Typ Max Unit Programming time*1*2 *4 tP -- 10 200 ms/128 bytes Erase time*1 *3 *5 tE -- 100 1200 ms/block Reprogramming count NWEC -- -- 100 Times Programming Wait time after SWE bit setting*1 tsswe 1 1 -- s Wait time after PSU bit setting*1 tspsu 50 50 -- s Wait time after P bit setting*1*4 tsp30 28 30 32 s tsp200 198 200 202 s tsp10 8 10 12 s Wait time after P bit clear*1 tcp 5 5 -- s Wait time after PSU bit clear*1 tcpsu 5 5 -- s Wait time after PV bit setting*1 tspv 4 4 -- s Wait time after H'FF dummy write*1 tspvr 2 2 -- s Wait time after PV bit clear* tcpv 2 2 -- s tcswe 100 100 -- s Maximum programming count*1*4 N -- -- 1000 Times Wait time after SWE bit setting*1 tsswe 1 1 -- s Wait time after ESU bit setting*1 tsesu 100 100 -- s Wait time after E bit setting*1*5 tse 10 10 100 ms 1 Wait time after SWE bit clear*1 Erase C.1 Port 1 Block Diagrams 1082 Wait time after E bit clear*1 tce 10 10 -- s Wait time after ESU bit clear*1 tcesu 10 10 -- s Wait time after EV bit setting*1 tsev 20 20 -- s Wait time after H'FF dummy write*1 tsevr 2 2 -- s Wait time after EV bit clear*1 tcev 4 4 -- s Wait time after SWE bit clear*1 tcswe 100 100 -- s Maximum erase count*1*5 N 12 -- 120 Times Figure note amended Notes: n = 0 or 1 Figure C.1 (a) Port 1 Block Diagram (Pins P10 and P11) * Priority order: Output compare output/PWM output > pulse output > DR output Figure C.3 (g) Port 1096 3 Block Diagram (Pins P36 and P37) Figure note amended Notes: n = 6 or 7 1. Output enable signal 2. Open drain control signal D.1 Port States in 1120 Each Mode Table D.1 I/O Port States in Each Processing State (H8S/2646, H8S/2646R, H8S/2645) Page xviii of xxxviii Table amended MCU Port Name Operating Pin Name Mode Reset Hardware Standby Mode Software Standby Mode Program Execution State Sleep Mode I/O port Port K 4 to 7 T T kept HTxD 4 to 7 H T H HTxD output HRxD 4 to 7 input T T HRxD input REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Item Page D.1 Port States in 1123 Each Mode Table D.2 I/O Port States in Each Processing State (H8S/2648, H8S/2648R, H8S/2647) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Revision (See Manual for Details) Table amended MCU Port Name Operating Pin Name Mode Hardware Standby Mode Software Standby Mode Reset PF3/LWR 4 H T 5, 6 T T [OPE = 0] T [OPE = 1] H Program Execution State Sleep Mode LWR [16-bit bus mode] LWR [Otherwise] I/O port 7 T T kept Port K 4 to 7 T T kept I/O port I/O port HTxD 4 to 7 H T H HTxD output HRxD 4 to 7 input T T HRxD input Page xix of xxxviii All trademarks and registered trademarks are the property of their respective owners. Page xx of xxxviii REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Contents Section 1 Overview ............................................................................................................. 1.1 1.2 1.3 1 Overview........................................................................................................................... 1 Internal Block Diagram..................................................................................................... 6 Pin Description.................................................................................................................. 8 1.3.1 Pin Arrangement .................................................................................................. 8 1.3.2 Pin Functions in Each Operating Mode ............................................................... 10 1.3.3 Pin Functions ....................................................................................................... 20 Section 2 CPU ...................................................................................................................... 27 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Overview........................................................................................................................... 2.1.1 Features................................................................................................................ 2.1.2 Differences between H8S/2600 CPU and H8S/2000 CPU .................................. 2.1.3 Differences from H8/300 CPU ............................................................................ 2.1.4 Differences from H8/300H CPU.......................................................................... CPU Operating Modes ...................................................................................................... Address Space................................................................................................................... Register Configuration...................................................................................................... 2.4.1 Overview.............................................................................................................. 2.4.2 General Registers ................................................................................................. 2.4.3 Control Registers ................................................................................................. 2.4.4 Initial Register Values.......................................................................................... Data Formats..................................................................................................................... 2.5.1 General Register Data Formats ............................................................................ 2.5.2 Memory Data Formats ......................................................................................... Instruction Set ................................................................................................................... 2.6.1 Overview.............................................................................................................. 2.6.2 Instructions and Addressing Modes..................................................................... 2.6.3 Table of Instructions Classified by Function ...................................................... 2.6.4 Basic Instruction Formats .................................................................................... Addressing Modes and Effective Address Calculation ..................................................... 2.7.1 Addressing Mode................................................................................................. 2.7.2 Effective Address Calculation ............................................................................. Processing States............................................................................................................... 2.8.1 Overview.............................................................................................................. 2.8.2 Reset State ........................................................................................................... 2.8.3 Exception-Handling State .................................................................................... REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 27 27 28 29 29 30 35 36 36 37 38 40 41 41 43 44 44 45 46 55 57 57 60 64 64 65 66 Page xxi of xxxviii 2.8.4 Program Execution State ..................................................................................... 2.8.5 Bus-Released State .............................................................................................. 2.8.6 Power-Down State ............................................................................................... 2.9 Basic Timing..................................................................................................................... 2.9.1 Overview ............................................................................................................. 2.9.2 On-Chip Memory (ROM, RAM) ......................................................................... 2.9.3 On-Chip Supporting Module Access Timing ...................................................... 2.9.4 On-Chip HCAN Module Access Timing............................................................. 2.9.5 External Address Space Access Timing .............................................................. 2.10 Usage Note........................................................................................................................ 2.10.1 TAS Instruction ................................................................................................... 2.10.2 Caution to Observe when Using Bit Manipulation Instructions .......................... 69 69 69 70 70 70 72 74 76 76 76 76 Section 3 MCU Operating Modes .................................................................................. 77 3.1 3.2 3.3 3.4 3.5 Overview........................................................................................................................... 3.1.1 Operating Mode Selection ................................................................................... 3.1.2 Register Configuration......................................................................................... Register Descriptions ........................................................................................................ 3.2.1 Mode Control Register (MDCR) ......................................................................... 3.2.2 System Control Register (SYSCR) ...................................................................... 3.2.3 Pin Function Control Register (PFCR) ................................................................ Operating Mode Descriptions ........................................................................................... 3.3.1 Mode 4................................................................................................................. 3.3.2 Mode 5................................................................................................................. 3.3.3 Mode 6................................................................................................................. 3.3.4 Mode 7................................................................................................................. Pin Functions in Each Operating Mode ............................................................................ Address Map in Each Operating Mode............................................................................. 77 77 78 78 78 79 80 82 82 82 82 82 83 83 Section 4 Exception Handling ......................................................................................... 87 4.1 4.2 4.3 Overview........................................................................................................................... 4.1.1 Exception Handling Types and Priority............................................................... 4.1.2 Exception Handling Operation ............................................................................ 4.1.3 Exception Vector Table ....................................................................................... Reset ................................................................................................................................. 4.2.1 Overview ............................................................................................................. 4.2.2 Reset Sequence .................................................................................................... 4.2.3 Interrupts after Reset............................................................................................ 4.2.4 State of On-Chip Supporting Modules after Reset Release ................................. Traces................................................................................................................................ Page xxii of xxxviii 87 87 88 88 90 90 90 92 93 93 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 4.4 4.5 4.6 4.7 Interrupts........................................................................................................................... Trap Instruction................................................................................................................. Stack Status after Exception Handling.............................................................................. Notes on Use of the Stack ................................................................................................. 94 95 96 97 Section 5 Interrupt Controller ............................................................................ 99 5.1 5.2 5.3 5.4 5.5 5.6 Overview........................................................................................................................... 5.1.1 Features................................................................................................................ 5.1.2 Block Diagram..................................................................................................... 5.1.3 Pin Configuration................................................................................................. 5.1.4 Register Configuration......................................................................................... Register Descriptions ........................................................................................................ 5.2.1 System Control Register (SYSCR) ...................................................................... 5.2.2 Interrupt Priority Registers A to H, J, K, M (IPRA to IPRH, IPRJ, IPRK, IPRM) ................................................................... 5.2.3 IRQ Enable Register (IER) .................................................................................. 5.2.4 IRQ Sense Control Registers H and L (ISCRH, ISCRL)..................................... 5.2.5 IRQ Status Register (ISR).................................................................................... Interrupt Sources............................................................................................................... 5.3.1 External Interrupts ............................................................................................... 5.3.2 Internal Interrupts ................................................................................................ 5.3.3 Interrupt Exception Handling Vector Table......................................................... Interrupt Operation............................................................................................................ 5.4.1 Interrupt Control Modes and Interrupt Operation ................................................ 5.4.2 Interrupt Control Mode 0 ..................................................................................... 5.4.3 Interrupt Control Mode 2 ..................................................................................... 5.4.4 Interrupt Exception Handling Sequence .............................................................. 5.4.5 Interrupt Response Times .................................................................................... Usage Notes ...................................................................................................................... 5.5.1 Contention between Interrupt Generation and Disabling..................................... 5.5.2 Instructions that Disable Interrupts ...................................................................... 5.5.3 Times when Interrupts Are Disabled ................................................................... 5.5.4 Interrupts during Execution of EEPMOV Instruction.......................................... 5.5.5 IRQ Interrupts ...................................................................................................... DTC Activation by Interrupt............................................................................................. 5.6.1 Overview.............................................................................................................. 5.6.2 Block Diagram..................................................................................................... 5.6.3 Operation ............................................................................................................. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 99 99 100 101 101 102 102 103 104 105 106 107 107 109 109 113 113 116 118 120 121 122 122 123 123 124 124 124 124 125 125 Page xxiii of xxxviii Section 6 PC Break Controller (PBC) ........................................................................... 127 6.1 6.2 6.3 Overview........................................................................................................................... 6.1.1 Features................................................................................................................ 6.1.2 Block Diagram..................................................................................................... 6.1.3 Register Configuration......................................................................................... Register Descriptions ........................................................................................................ 6.2.1 Break Address Register A (BARA) ..................................................................... 6.2.2 Break Address Register B (BARB) ..................................................................... 6.2.3 Break Control Register A (BCRA) ...................................................................... 6.2.4 Break Control Register B (BCRB) ...................................................................... 6.2.5 Module Stop Control Register C (MSTPCRC).................................................... Operation .......................................................................................................................... 6.3.1 PC Break Interrupt Due to Instruction Fetch ....................................................... 6.3.2 PC Break Interrupt Due to Data Access............................................................... 6.3.3 Notes on PC Break Interrupt Handling ................................................................ 6.3.4 Operation in Transitions to Power-Down Modes ................................................ 6.3.5 PC Break Operation in Continuous Data Transfer............................................... 6.3.6 When Instruction Execution Is Delayed by One State......................................... 6.3.7 Additional Notes.................................................................................................. 127 127 128 129 129 129 130 130 132 132 133 133 134 134 135 136 137 138 Section 7 Bus Controller ................................................................................................... 139 7.1 7.2 7.3 7.4 Overview........................................................................................................................... 7.1.1 Features................................................................................................................ 7.1.2 Block Diagram..................................................................................................... 7.1.3 Pin Configuration................................................................................................. 7.1.4 Register Configuration......................................................................................... Register Descriptions ........................................................................................................ 7.2.1 Bus Width Control Register (ABWCR)............................................................... 7.2.2 Access State Control Register (ASTCR) ............................................................. 7.2.3 Wait Control Registers H and L (WCRH, WCRL).............................................. 7.2.4 Bus Control Register H (BCRH) ......................................................................... 7.2.5 Bus Control Register L (BCRL) .......................................................................... 7.2.6 Pin Function Control Register (PFCR) ................................................................ Overview of Bus Control .................................................................................................. 7.3.1 Area Partitioning.................................................................................................. 7.3.2 Bus Specifications ............................................................................................... 7.3.3 Memory Interfaces............................................................................................... 7.3.4 Interface Specifications for Each Area ................................................................ Basic Bus Interface ........................................................................................................... Page xxiv of xxxviii 139 139 140 141 141 142 142 143 144 148 150 151 153 153 154 155 156 157 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 7.5 7.6 7.7 7.8 7.9 7.4.1 Overview.............................................................................................................. 7.4.2 Data Size and Data Alignment............................................................................. 7.4.3 Valid Strobes........................................................................................................ 7.4.4 Basic Timing........................................................................................................ 7.4.5 Wait Control ........................................................................................................ Burst ROM Interface......................................................................................................... 7.5.1 Overview.............................................................................................................. 7.5.2 Basic Timing........................................................................................................ 7.5.3 Wait Control ........................................................................................................ Idle Cycle.......................................................................................................................... 7.6.1 Operation ............................................................................................................. 7.6.2 Pin States During Idle Cycles .............................................................................. Write Data Buffer Function .............................................................................................. Bus Arbitration.................................................................................................................. 7.8.1 Overview.............................................................................................................. 7.8.2 Operation ............................................................................................................. 7.8.3 Bus Transfer Timing ............................................................................................ Resets and the Bus Controller ........................................................................................... 157 157 159 160 168 170 170 170 172 172 172 176 177 178 178 178 178 179 Section 8 Data Transfer Controller (DTC)................................................................... 181 8.1 8.2 8.3 Overview........................................................................................................................... 8.1.1 Features................................................................................................................ 8.1.2 Block Diagram..................................................................................................... 8.1.3 Register Configuration......................................................................................... Register Descriptions ........................................................................................................ 8.2.1 DTC Mode Register A (MRA) ............................................................................ 8.2.2 DTC Mode Register B (MRB)............................................................................. 8.2.3 DTC Source Address Register (SAR).................................................................. 8.2.4 DTC Destination Address Register (DAR).......................................................... 8.2.5 DTC Transfer Count Register A (CRA) .............................................................. 8.2.6 DTC Transfer Count Register B (CRB)............................................................... 8.2.7 DTC Enable Registers (DTCER) ......................................................................... 8.2.8 DTC Vector Register (DTVECR)........................................................................ 8.2.9 Module Stop Control Register A (MSTPCRA) ................................................... Operation .......................................................................................................................... 8.3.1 Overview.............................................................................................................. 8.3.2 Activation Sources............................................................................................... 8.3.3 DTC Vector Table ............................................................................................... 8.3.4 Location of Register Information in Address Space ............................................ 8.3.5 Normal Mode....................................................................................................... REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 181 181 182 183 184 184 186 187 187 188 188 189 190 191 192 192 194 196 200 201 Page xxv of xxxviii 8.4 8.5 8.3.6 Repeat Mode........................................................................................................ 8.3.7 Block Transfer Mode ........................................................................................... 8.3.8 Chain Transfer ..................................................................................................... 8.3.9 Operation Timing................................................................................................. 8.3.10 Number of DTC Execution States ....................................................................... 8.3.11 Procedures for Using DTC .................................................................................. 8.3.12 Examples of Use of the DTC ............................................................................... Interrupts........................................................................................................................... Usage Notes ...................................................................................................................... 202 203 205 206 207 209 210 213 213 Section 9 I/O Ports .............................................................................................................. 215 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 Overview........................................................................................................................... Port 1................................................................................................................................. 9.2.1 Overview ............................................................................................................. 9.2.2 Register Configuration......................................................................................... 9.2.3 Pin Functions ....................................................................................................... Port 2................................................................................................................................. 9.3.1 Overview ............................................................................................................. 9.3.2 Register Configuration......................................................................................... 9.3.3 Pin Functions ....................................................................................................... Port 3................................................................................................................................. 9.4.1 Overview ............................................................................................................. 9.4.2 Register Configuration......................................................................................... 9.4.3 Pin Functions ....................................................................................................... Port 4................................................................................................................................. 9.5.1 Overview ............................................................................................................. 9.5.2 Register Configuration......................................................................................... 9.5.3 Pin Functions ....................................................................................................... Port 5................................................................................................................................. 9.6.1 Overview ............................................................................................................. 9.6.2 Register Configuration......................................................................................... 9.6.3 Pin Functions ....................................................................................................... Port 9................................................................................................................................. 9.7.1 Overview ............................................................................................................. 9.7.2 Register Configuration......................................................................................... 9.7.3 Pin Functions ....................................................................................................... Port A................................................................................................................................ 9.8.1 Overview ............................................................................................................. 9.8.2 Register Configuration......................................................................................... 9.8.3 Pin Functions ....................................................................................................... Page xxvi of xxxviii 215 223 223 224 226 234 234 234 236 244 244 244 247 249 249 250 250 251 251 252 254 256 256 257 257 258 258 259 262 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 9.9 9.10 9.11 9.12 9.13 9.14 9.15 9.16 9.8.4 MOS Input Pull-Up Function............................................................................... Port B ................................................................................................................................ 9.9.1 Overview.............................................................................................................. 9.9.2 Register Configuration......................................................................................... 9.9.3 Pin Functions ....................................................................................................... 9.9.4 MOS Input Pull-Up Function............................................................................... Port C ................................................................................................................................ 9.10.1 Overview.............................................................................................................. 9.10.2 Register Configuration......................................................................................... 9.10.3 Pin Functions ....................................................................................................... 9.10.4 MOS Input Pull-Up Function............................................................................... Port D................................................................................................................................ 9.11.1 Overview.............................................................................................................. 9.11.2 Register Configuration......................................................................................... 9.11.3 Pin Functions ....................................................................................................... 9.11.4 MOS Input Pull-Up Function............................................................................... Port E ................................................................................................................................ 9.12.1 Overview.............................................................................................................. 9.12.2 Register Configuration......................................................................................... 9.12.3 Pin Functions ....................................................................................................... 9.12.4 MOS Input Pull-Up Function............................................................................... Port F................................................................................................................................. 9.13.1 Overview.............................................................................................................. 9.13.2 Register Configuration......................................................................................... 9.13.3 Pin Functions ....................................................................................................... Port H................................................................................................................................ 9.14.1 Overview.............................................................................................................. 9.14.2 Register Configuration......................................................................................... 9.14.3 Pin Functions ....................................................................................................... Port J ................................................................................................................................. 9.15.1 Overview.............................................................................................................. 9.15.2 Register Configuration......................................................................................... 9.15.3 Pin Functions ....................................................................................................... Port K................................................................................................................................ 9.16.1 Overview.............................................................................................................. 9.16.2 Register Configuration......................................................................................... 9.16.3 Pin Functions ....................................................................................................... 264 265 265 266 268 269 270 270 271 274 275 276 276 277 279 280 281 281 282 284 285 286 286 287 289 292 292 292 294 294 294 295 296 297 297 297 299 Section 10 16-Bit Timer Pulse Unit (TPU) .................................................................. 301 10.1 Overview........................................................................................................................... 301 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page xxvii of xxxviii 10.2 10.3 10.4 10.5 10.6 10.7 10.1.1 Features................................................................................................................ 10.1.2 Block Diagram..................................................................................................... 10.1.3 Pin Configuration................................................................................................. 10.1.4 Register Configuration......................................................................................... Register Descriptions ........................................................................................................ 10.2.1 Timer Control Register (TCR)............................................................................. 10.2.2 Timer Mode Register (TMDR)............................................................................ 10.2.3 Timer I/O Control Register (TIOR) ..................................................................... 10.2.4 Timer Interrupt Enable Register (TIER).............................................................. 10.2.5 Timer Status Register (TSR)................................................................................ 10.2.6 Timer Counter (TCNT)........................................................................................ 10.2.7 Timer General Register (TGR) ............................................................................ 10.2.8 Timer Start Register (TSTR) ............................................................................... 10.2.9 Timer Synchro Register (TSYR) ......................................................................... 10.2.10 Module Stop Control Register A (MSTPCRA) ................................................... Interface to Bus Master..................................................................................................... 10.3.1 16-Bit Registers ................................................................................................... 10.3.2 8-Bit Registers ..................................................................................................... Operation .......................................................................................................................... 10.4.1 Overview ............................................................................................................. 10.4.2 Basic Functions.................................................................................................... 10.4.3 Synchronous Operation........................................................................................ 10.4.4 Buffer Operation.................................................................................................. 10.4.5 Cascaded Operation ............................................................................................. 10.4.6 PWM Modes........................................................................................................ 10.4.7 Phase Counting Mode.......................................................................................... Interrupts........................................................................................................................... 10.5.1 Interrupt Sources and Priorities ........................................................................... 10.5.2 DTC Activation ................................................................................................... 10.5.3 A/D Converter Activation.................................................................................... Operation Timing.............................................................................................................. 10.6.1 Input/Output Timing ............................................................................................ 10.6.2 Interrupt Signal Timing ....................................................................................... Usage Notes ...................................................................................................................... 301 305 306 308 310 310 315 317 330 333 337 338 339 340 341 342 342 342 344 344 345 350 353 357 359 364 371 371 373 373 374 374 378 382 Section 11 Programmable Pulse Generator (PPG) .................................................... 393 11.1 Overview........................................................................................................................... 11.1.1 Features................................................................................................................ 11.1.2 Block Diagram..................................................................................................... 11.1.3 Pin Configuration................................................................................................. Page xxviii of xxxviii 393 393 394 395 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 11.1.4 Registers .............................................................................................................. 11.2 Register Descriptions ........................................................................................................ 11.2.1 Next Data Enable Registers H and L (NDERH, NDERL)................................... 11.2.2 Output Data Registers H and L (PODRH, PODRL) ............................................ 11.2.3 Next Data Registers H and L (NDRH, NDRL).................................................... 11.2.4 Notes on NDR Access ......................................................................................... 11.2.5 PPG Output Control Register (PCR) ................................................................... 11.2.6 PPG Output Mode Register (PMR) ..................................................................... 11.2.7 Port 1 Data Direction Register (P1DDR)............................................................. 11.2.8 Module Stop Control Register A (MSTPCRA) ................................................... 11.3 Operation .......................................................................................................................... 11.3.1 Overview.............................................................................................................. 11.3.2 Output Timing...................................................................................................... 11.3.3 Normal Pulse Output............................................................................................ 11.3.4 Non-Overlapping Pulse Output............................................................................ 11.3.5 Inverted Pulse Output .......................................................................................... 11.3.6 Pulse Output Triggered by Input Capture ............................................................ 11.4 Usage Notes ...................................................................................................................... 396 397 397 399 399 399 402 404 407 407 408 408 409 410 412 415 416 417 Section 12 Watchdog Timer ............................................................................................. 419 12.1 Overview........................................................................................................................... 12.1.1 Features................................................................................................................ 12.1.2 Block Diagram..................................................................................................... 12.1.3 Pin Configuration................................................................................................. 12.1.4 Register Configuration......................................................................................... 12.2 Register Descriptions ........................................................................................................ 12.2.1 Timer Counter (TCNT)........................................................................................ 12.2.2 Timer Control/Status Register (TCSR)................................................................ 12.2.3 Reset Control/Status Register (RSTCSR) ............................................................ 12.2.4 Notes on Register Access..................................................................................... 12.3 Operation .......................................................................................................................... 12.3.1 Watchdog Timer Operation ................................................................................. 12.3.2 Interval Timer Operation ..................................................................................... 12.3.3 Timing of Setting Overflow Flag (OVF) ............................................................. 12.3.4 Timing of Setting of Watchdog Timer Overflow Flag (WOVF) ......................... 12.4 Interrupts........................................................................................................................... 12.5 Usage Notes ...................................................................................................................... 12.5.1 Contention between Timer Counter (TCNT) Write and Increment ..................... 12.5.2 Changing Value of PSS and CKS2 to CKS0 ....................................................... 12.5.3 Switching between Watchdog Timer Mode and Interval Timer Mode................ REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 419 419 420 421 421 422 422 423 427 429 431 431 432 433 434 435 435 435 436 436 Page xxix of xxxviii 12.5.4 Internal Reset in Watchdog Timer Mode............................................................. 436 12.5.5 OVF Flag Clearing in Interval Timer Mode ........................................................ 436 Section 13 Serial Communication Interface (SCI) .................................................... 437 13.1 Overview........................................................................................................................... 13.1.1 Features................................................................................................................ 13.1.2 Block Diagram..................................................................................................... 13.1.3 Pin Configuration................................................................................................. 13.1.4 Register Configuration......................................................................................... 13.2 Register Descriptions ........................................................................................................ 13.2.1 Receive Shift Register (RSR) .............................................................................. 13.2.2 Receive Data Register (RDR) .............................................................................. 13.2.3 Transmit Shift Register (TSR) ............................................................................. 13.2.4 Transmit Data Register (TDR)............................................................................. 13.2.5 Serial Mode Register (SMR) ............................................................................... 13.2.6 Serial Control Register (SCR) ............................................................................. 13.2.7 Serial Status Register (SSR) ................................................................................ 13.2.8 Bit Rate Register (BRR) ...................................................................................... 13.2.9 Smart Card Mode Register (SCMR).................................................................... 13.2.10 Module Stop Control Register B (MSTPCRB).................................................... 13.3 Operation .......................................................................................................................... 13.3.1 Overview ............................................................................................................. 13.3.2 Operation in Asynchronous Mode ....................................................................... 13.3.3 Multiprocessor Communication Function ........................................................... 13.3.4 Operation in Clocked Synchronous Mode ........................................................... 13.4 SCI Interrupts.................................................................................................................... 13.5 Usage Notes ...................................................................................................................... 437 437 439 440 441 442 442 442 443 443 444 447 451 455 462 463 465 465 467 478 486 495 496 Section 14 Smart Card Interface ..................................................................................... 505 14.1 Overview........................................................................................................................... 14.1.1 Features................................................................................................................ 14.1.2 Block Diagram..................................................................................................... 14.1.3 Pin Configuration................................................................................................. 14.1.4 Register Configuration......................................................................................... 14.2 Register Descriptions ........................................................................................................ 14.2.1 Smart Card Mode Register (SCMR).................................................................... 14.2.2 Serial Status Register (SSR) ................................................................................ 14.2.3 Serial Mode Register (SMR) ............................................................................... 14.2.4 Serial Control Register (SCR) ............................................................................. 14.3 Operation .......................................................................................................................... Page xxx of xxxviii 505 505 506 507 508 509 509 511 513 515 516 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 14.3.1 Overview.............................................................................................................. 14.3.2 Pin Connections ................................................................................................... 14.3.3 Data Format ......................................................................................................... 14.3.4 Register Settings .................................................................................................. 14.3.5 Clock.................................................................................................................... 14.3.6 Data Transfer Operations..................................................................................... 14.3.7 Operation in GSM Mode ..................................................................................... 14.3.8 Operation in Block Transfer Mode ...................................................................... 14.4 Usage Notes ...................................................................................................................... 516 516 518 520 522 524 531 532 533 Section 15 Controller Area Network (HCAN)............................................................ 537 15.1 Overview........................................................................................................................... 15.1.1 Features................................................................................................................ 15.1.2 Block Diagram..................................................................................................... 15.1.3 Pin Configuration................................................................................................. 15.1.4 Register Configuration......................................................................................... 15.2 Register Descriptions ........................................................................................................ 15.2.1 Master Control Register (MCR) .......................................................................... 15.2.2 General Status Register (GSR) ............................................................................ 15.2.3 Bit Configuration Register (BCR) ....................................................................... 15.2.4 Mailbox Configuration Register (MBCR) ........................................................... 15.2.5 Transmit Wait Register (TXPR) .......................................................................... 15.2.6 Transmit Wait Cancel Register (TXCR).............................................................. 15.2.7 Transmit Acknowledge Register (TXACK) ........................................................ 15.2.8 Abort Acknowledge Register (ABACK) ............................................................. 15.2.9 Receive Complete Register (RXPR).................................................................... 15.2.10 Remote Request Register (RFPR)........................................................................ 15.2.11 Interrupt Register (IRR) ....................................................................................... 15.2.12 Mailbox Interrupt Mask Register (MBIMR)........................................................ 15.2.13 Interrupt Mask Register (IMR) ............................................................................ 15.2.14 Receive Error Counter (REC) .............................................................................. 15.2.15 Transmit Error Counter (TEC)............................................................................. 15.2.16 Unread Message Status Register (UMSR) ........................................................... 15.2.17 Local Acceptance Filter Masks (LAFML, LAFMH)........................................... 15.2.18 Message Control (MC0 to MC15) ....................................................................... 15.2.19 Message Data (MD0 to MD15) ........................................................................... 15.2.20 Module Stop Control Register C (MSTPCRC).................................................... 15.3 Operation .......................................................................................................................... 15.3.1 Hardware and Software Resets ............................................................................ 15.3.2 Initialization after Hardware Reset ...................................................................... REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 537 537 538 539 539 541 541 542 544 546 547 548 549 550 551 552 553 557 558 561 561 562 563 565 569 569 570 570 571 Page xxxi of xxxviii 15.3.3 Transmit Mode..................................................................................................... 15.3.4 Receive Mode ...................................................................................................... 15.3.5 HCAN Sleep Mode.............................................................................................. 15.3.6 HCAN Halt Mode................................................................................................ 15.3.7 Interrupt Interface ................................................................................................ 15.3.8 DTC Interface ...................................................................................................... 15.4 CAN Bus Interface............................................................................................................ 15.5 Usage Notes ...................................................................................................................... 578 584 589 592 593 594 595 596 Section 16 A/D Converter ................................................................................................. 16.1 Overview........................................................................................................................... 16.1.1 Features................................................................................................................ 16.1.2 Block Diagram..................................................................................................... 16.1.3 Pin Configuration................................................................................................. 16.1.4 Register Configuration......................................................................................... 16.2 Register Descriptions ........................................................................................................ 16.2.1 A/D Data Registers A to D (ADDRA to ADDRD) ............................................. 16.2.2 A/D Control/Status Register (ADCSR) ............................................................... 16.2.3 A/D Control Register (ADCR) ............................................................................ 16.2.4 Module Stop Control Register A (MSTPCRA) ................................................... 16.3 Interface to Bus Master..................................................................................................... 16.4 Operation .......................................................................................................................... 16.4.1 Single Mode (SCAN = 0) .................................................................................... 16.4.2 Scan Mode (SCAN = 1)....................................................................................... 16.4.3 Input Sampling and A/D Conversion Time ......................................................... 16.4.4 External Trigger Input Timing............................................................................. 16.5 Interrupts........................................................................................................................... 16.6 Usage Notes ...................................................................................................................... 601 601 601 602 603 604 605 605 606 609 610 611 612 612 614 616 617 618 619 Section 17 Motor Control PWM Timer ........................................................................ 625 17.1 Overview........................................................................................................................... 17.1.1 Features................................................................................................................ 17.1.2 Block Diagram..................................................................................................... 17.1.3 Pin Configuration................................................................................................. 17.1.4 Register Configuration......................................................................................... 17.2 Register Descriptions ........................................................................................................ 17.2.1 PWM Control Registers 1 and 2 (PWCR1, PWCR2) .......................................... 17.2.2 PWM Output Control Registers 1 and 2 (PWOCR1, PWOCR2) ........................ 17.2.3 PWM Polarity Registers 1 and 2 (PWPR1, PWPR2) .......................................... 17.2.4 PWM Counters 1 and 2 (PWCNT1, PWCNT2) .................................................. Page xxxii of xxxviii 625 625 626 628 629 630 630 632 633 634 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 17.2.5 PWM Cycle Registers 1 and 2 (PWCYR1, PWCYR2) ....................................... 17.2.6 PWM Duty Registers 1A, 1C, 1E, 1G (PWDTR1A, 1C, 1E, 1G) ....................... 17.2.7 PWM Buffer Registers 1A, 1C, 1E, 1G (PWBFR1A, 1C, 1E, 1G) ..................... 17.2.8 PWM Duty Registers 2A to 2H (PWDTR2A to PWDTR2H) ............................. 17.2.9 PWM Buffer Registers 2A to 2D (PWBFR2A to PWBFR2D)............................ 17.2.10 Module Stop Control Register D (MSTPCRD) ................................................... 17.3 Bus Master Interface ......................................................................................................... 17.3.1 16-Bit Data Registers........................................................................................... 17.3.2 8-Bit Data Registers............................................................................................. 17.4 Operation .......................................................................................................................... 17.4.1 PWM Channel 1 Operation.................................................................................. 17.4.2 PWM Channel 2 Operation.................................................................................. 17.5 Usage Note........................................................................................................................ 635 636 638 638 640 641 642 642 642 643 643 644 646 Section 18 LCD Controller/Driver ................................................................................. 647 18.1 Overview........................................................................................................................... 18.1.1 Features................................................................................................................ 18.1.2 Block Diagram..................................................................................................... 18.1.3 Pin Configuration................................................................................................. 18.1.4 Register Configuration......................................................................................... 18.2 Register Descriptions ........................................................................................................ 18.2.1 LCD Port Control Register (LPCR)..................................................................... 18.2.2 LCD Control Register (LCR)............................................................................... 18.2.3 LCD Control Register 2 (LCR2).......................................................................... 18.2.4 Module Stop Control Register D (MSTPCRD) ................................................... 18.3 Operation .......................................................................................................................... 18.3.1 Settings up to LCD Display ................................................................................. 18.3.2 Relationship between LCD RAM and Display .................................................... 18.3.3 Operation in Power-Down Modes ....................................................................... 18.3.4 Boosting the LCD Drive Power Supply............................................................... 18.4 Usage Notes ...................................................................................................................... 18.4.1 Disabling LCD Indications .................................................................................. 647 647 648 649 649 650 650 653 655 656 657 657 659 667 668 669 669 Section 19 RAM .................................................................................................................. 19.1 Overview........................................................................................................................... 19.1.1 Block Diagram..................................................................................................... 19.1.2 Register Configuration......................................................................................... 19.2 Register Descriptions ........................................................................................................ 19.2.1 System Control Register (SYSCR) ...................................................................... 19.3 Operation .......................................................................................................................... 671 671 671 672 672 672 673 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page xxxiii of xxxviii 19.4 Usage Notes ...................................................................................................................... 673 Section 20 ROM .................................................................................................................. 675 20.1 Features............................................................................................................................. 675 20.2 Overview........................................................................................................................... 676 20.2.1 Block Diagram..................................................................................................... 676 20.2.2 Mode Transitions ................................................................................................. 677 20.2.3 On-Board Programming Modes........................................................................... 678 20.2.4 Flash Memory Emulation in RAM ...................................................................... 680 20.2.5 Differences between Boot Mode and User Program Mode ................................. 681 20.2.6 Block Configuration ............................................................................................ 682 20.3 Pin Configuration.............................................................................................................. 683 20.4 Register Configuration...................................................................................................... 684 20.5 Register Descriptions ........................................................................................................ 684 20.5.1 Flash Memory Control Register 1 (FLMCR1) .................................................... 684 20.5.2 Flash Memory Control Register 2 (FLMCR2) .................................................... 687 20.5.3 Erase Block Register 1 (EBR1) ........................................................................... 688 20.5.4 Erase Block Register 2 (EBR2) ........................................................................... 688 20.5.5 RAM Emulation Register (RAMER)................................................................... 689 20.5.6 Flash Memory Power Control Register (FLPWCR) ............................................ 691 20.6 On-Board Programming Modes........................................................................................ 691 20.6.1 Boot Mode ........................................................................................................... 692 20.6.2 User Program Mode............................................................................................. 696 20.7 Flash Memory Programming/Erasing ............................................................................... 698 20.7.1 Program Mode ..................................................................................................... 700 20.7.2 Program-Verify Mode.......................................................................................... 701 20.7.3 Erase Mode .......................................................................................................... 705 20.7.4 Erase-Verify Mode .............................................................................................. 706 20.8 Protection .......................................................................................................................... 708 20.8.1 Hardware Protection ............................................................................................ 708 20.8.2 Software Protection.............................................................................................. 709 20.8.3 Error Protection ................................................................................................... 710 20.9 Flash Memory Emulation in RAM ................................................................................... 712 20.10 Interrupt Handling when Programming/Erasing Flash Memory....................................... 714 20.11 Programmer Mode ............................................................................................................ 714 20.12 Flash Memory and Power-Down States............................................................................ 715 20.12.1 Notes on Power-Down States .............................................................................. 715 20.13 Flash Memory Programming and Erasing Precautions..................................................... 716 Page xxxiv of xxxviii REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Section 21 Clock Pulse Generator .................................................................................. 721 21.1 Overview........................................................................................................................... 21.1.1 Block Diagram..................................................................................................... 21.1.2 Register Configuration......................................................................................... 21.2 Register Descriptions ........................................................................................................ 21.2.1 System Clock Control Register (SCKCR) ........................................................... 21.2.2 Low-Power Control Register (LPWRCR) ........................................................... 21.3 Oscillator........................................................................................................................... 21.3.1 Connecting a Crystal Resonator........................................................................... 21.4 PLL Circuit ....................................................................................................................... 21.5 Medium-Speed Clock Divider .......................................................................................... 21.6 Bus Master Clock Selection Circuit.................................................................................. 21.7 Subclock Oscillator ........................................................................................................... 21.8 Subclock Waveform Generation Circuit ........................................................................... 21.9 Note on Crystal Resonator ................................................................................................ 721 721 722 722 722 723 724 724 727 727 728 728 729 729 Section 22 Power-Down Modes ...................................................................................... 22.1 Overview........................................................................................................................... 22.1.1 Register Configuration......................................................................................... 22.2 Register Descriptions ........................................................................................................ 22.2.1 Standby Control Register (SBYCR) .................................................................... 22.2.2 System Clock Control Register (SCKCR) ........................................................... 22.2.3 Low-Power Control Register (LPWRCR) ........................................................... 22.2.4 Timer Control/Status Register (TCSR)................................................................ 22.2.5 Module Stop Control Register (MSTPCR) .......................................................... 22.3 Medium-Speed Mode........................................................................................................ 22.4 Sleep Mode ....................................................................................................................... 22.4.1 Sleep Mode .......................................................................................................... 22.4.2 Exiting Sleep Mode ............................................................................................. 22.5 Module Stop Mode ........................................................................................................... 22.5.1 Module Stop Mode .............................................................................................. 22.5.2 Usage Notes ......................................................................................................... 22.6 Software Standby Mode.................................................................................................... 22.6.1 Software Standby Mode....................................................................................... 22.6.2 Clearing Software Standby Mode ........................................................................ 22.6.3 Setting Oscillation Stabilization Time after Clearing Software Standby Mode... 22.6.4 Software Standby Mode Application Example.................................................... 22.6.5 Usage Notes ......................................................................................................... 22.7 Hardware Standby Mode .................................................................................................. 731 731 735 736 736 738 739 742 743 745 746 746 746 747 747 748 748 748 749 750 750 751 752 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page xxxv of xxxviii 22.8 22.9 22.10 22.11 22.12 22.13 22.7.1 Hardware Standby Mode ..................................................................................... 22.7.2 Hardware Standby Mode Timing......................................................................... Watch Mode...................................................................................................................... 22.8.1 Watch Mode......................................................................................................... 22.8.2 Exiting Watch Mode............................................................................................ 22.8.3 Notes.................................................................................................................... Subsleep Mode.................................................................................................................. 22.9.1 Subsleep Mode..................................................................................................... 22.9.2 Exiting Subsleep Mode........................................................................................ Subactive Mode ................................................................................................................ 22.10.1 Subactive Mode ................................................................................................... 22.10.2 Exiting Subactive Mode....................................................................................... Direct Transitions ............................................................................................................. 22.11.1 Overview of Direct Transitions ........................................................................... Clock Output Disabling Function .................................................................................. Usage Notes ...................................................................................................................... 752 753 753 753 754 754 755 755 755 756 756 756 757 757 757 758 Section 23 Electrical Characteristics ............................................................................. 759 Absolute Maximum Ratings ............................................................................................. Power Supply Voltage and Operating Frequency Range.................................................. DC Characteristics ............................................................................................................ AC Characteristics ............................................................................................................ 23.4.1 Clock Timing ....................................................................................................... 23.4.2 Control Signal Timing ......................................................................................... 23.4.3 Bus Timing .......................................................................................................... 23.4.4 Timing of On-Chip Supporting Modules............................................................. 23.5 A/D Conversion Characteristics........................................................................................ 23.6 LCD Characteristics.......................................................................................................... 23.7 Flash Memory Characteristics .......................................................................................... 23.1 23.2 23.3 23.4 759 760 761 766 767 769 771 777 782 783 784 Appendix A Instruction Set .............................................................................................. 787 A.1 A.2 A.3 A.4 A.5 A.6 Instruction List.................................................................................................................. Instruction Codes .............................................................................................................. Operation Code Map......................................................................................................... Number of States Required for Instruction Execution ...................................................... Bus States During Instruction Execution .......................................................................... Condition Code Modification ........................................................................................... 787 811 826 830 844 858 Appendix B Internal I/O Register ................................................................................... 864 B.1 Address ............................................................................................................................. 864 Page xxxvi of xxxviii REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 B.2 Functions........................................................................................................................... 880 Appendix C I/O Port Block Diagrams......................................................................... 1082 C.1 C.2 C.3 C.4 C.5 C.6 C.7 C.8 C.9 C.10 C.11 C.12 C.13 C.14 C.15 Port 1 Block Diagrams.................................................................................................... Port 2 Block Diagrams.................................................................................................... Port 3 Block Diagrams.................................................................................................... Port 4 Block Diagram ..................................................................................................... Port 5 Block Diagrams.................................................................................................... Port 9 Block Diagram ..................................................................................................... Port A Block Diagram..................................................................................................... Port B Block Diagram..................................................................................................... Port C Block Diagram..................................................................................................... Port D Block Diagram..................................................................................................... Port E Block Diagram ..................................................................................................... Port F Block Diagrams.................................................................................................... Port G Block Diagram..................................................................................................... Port J Block Diagram...................................................................................................... Port K Block Diagram..................................................................................................... 1082 1088 1090 1097 1098 1102 1103 1104 1105 1106 1107 1108 1115 1116 1117 Appendix D Pin States ..................................................................................................... 1118 D.1 Port States in Each Mode ................................................................................................ 1118 Appendix E Timing of Transition to and Recovery from Hardware Standby Mode............................................................... 1124 Appendix F Package Dimensions ................................................................................. 1125 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page xxxvii of xxxviii Page xxxviii of xxxviii REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Section 1 Overview 1.1 Overview The H8S/2646 Group is a series of microcomputers (MCUs: microcomputer units), built around the H8S/2600 CPU, employing Renesas Electronics's proprietary architecture, and equipped with peripheral functions on-chip. The H8S/2600 CPU has an internal 32-bit architecture, is provided with sixteen 16-bit general registers and a concise, optimized instruction set designed for high-speed operation, and can address a 16-Mbyte linear address space. The instruction set is upward-compatible with H8/300 and H8/300H CPU instructions at the object-code level, facilitating migration from the H8/300, H8/300L, or H8/300H Series. On-chip peripheral functions required for system configuration include data transfer controller (DTC) bus masters, ROM and RAM memory, a 16-bit timer pulse unit (TPU), programmable pulse generator (PPG), watchdog timer (WDT), serial communication interface (SCI), controller area network (HCAN), A/D converter, motor control PWM timer (PWM), LCD controller/driver (LCDC), and I/O ports. On-chip ROM is available as 128-kbyte flash memory (F-ZTATTM version)* or 128/64-kbyte mask ROM. ROM is connected to the CPU via a 16-bit data bus, enabling both byte and word data to be accessed in one state. Instruction fetching has been speeded up, and processing speed increased. Four operating modes, modes 4 to 7, are provided, and there is a choice of single-chip mode or external expansion mode. The features of the H8S/2646 Group are shown in table 1.1. Note: * F-ZTAT is a trademark of Renesas Electronics Corp. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Table 1.1 Overview Item Specification CPU * General-register machine Sixteen 16-bit general registers (also usable as sixteen 8-bit registers or eight 32-bit registers) * High-speed operation suitable for realtime control Maximum clock rate: 20 MHz High-speed arithmetic operations 8/16/32-bit register-register add/subtract 16 x 16-bit register-register multiply 16 x 16 + 42-bit multiply and accumulate 32 / 16-bit register-register divide * : 50 ns : 200 ns : 200 ns : 1000 ns Instruction set suitable for high-speed operation Sixty-nine basic instructions 8/16/32-bit move/arithmetic and logic instructions Unsigned/signed multiply and divide instructions Multiply-and accumulate instruction Powerful bit-manipulation instructions * Two CPU operating modes Normal mode: 64-kbyte address space (not used on this device) Advanced mode: 16-Mbyte address space Bus controller * Address space divided into 8 areas, with bus specifications settable independently for each area * Choice of 8-bit or 16-bit access space for each area * 2-state or 3-state access space can be designated for each area * Number of program wait states can be set for each area * Direct connection to burst ROM supported PC break controller * Data transfer controller (DTC) Page 2 of 1126 Supports debugging functions by means of PC break interrupts * Two break channels * Can be activated by internal interrupt or software * Multiple transfers or multiple types of transfer possible for one activation source * Transfer possible in repeat mode, block transfer mode, etc. * Request can be sent to CPU for interrupt that activated DTC REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Item Specification 16-bit timer pulse unit (TPU) * 6-channel 16-bit timer on-chip * Pulse I/O processing capability for up to 16 pins' * Automatic 2-phase encoder count capability * Maximum 8-bit pulse output possible with TPU as time base * Output trigger selectable in 4-bit groups * Non-overlap margin can be set * Direct output or inverse output setting possible Watchdog timer (WDT) 2 channels * Watchdog timer or interval timer selectable * Operation using subclock supported (WDT1 only) Serial communication interface (SCI) 2 channels (SCI0 and SCI1) H8S/2646, H8S/2646R, H8S/2645 * Asynchronous mode or synchronous mode selectable * Multiprocessor communication function * Smart card interface function * CAN: Ver. 2.0B compliant * Buffer size: 15 transmit/receive messages, transmit only one message * Filtering of receive messages * Resolution: 10 bits * Input: 12 channels * High-speed conversion: 13.3 s minimum conversion time (at 20-MHz operation) * Single or scan mode selectable * Sample and hold circuit * A/D conversion can be activated by external trigger or timer trigger Programmable pulse generator (PPG) Serial communication interface (SCI) 3 channels (SCI0, SCI1, and SCI2) H8S/2648, H8S/2648R, H8S/2647 Controller area network (HCAN) 1 channels A/D converter REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 3 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Item Specification Motor control PWM * timer (PWM) * Maximum of 16 10-bit PWM outputs Eight outputs with two channels each built in * Duty settable between 0% and 100% * Automatic transfer of buffer register data supported * Block transfer and one-word data transfer supported using DTC 1 24 segments and 4COM* LCD controller/driver * (LCDC) * 2 40 segments and 4COM* * Display LCD RAM (8 bits x 20 bytes (160 bits) * Segment output pins may be selected four at a time as ports * On-chip power supply division resistor Notes: 1. In the H8S/2646, H8S/2646R, and H8S/2645. 2. In the H8S/2648, H8S/2648R, and H8S/2647. I/O ports * 92 I/O pins, 16 input-only pins Memory * Flash memory or mask ROM * High-speed static RAM Product Name ROM RAM H8S/2646, H8S/2646R 128 kbytes 4 kbytes 64 kbytes 2 kbytes H8S/2648, H8S/2648R H8S/2645 H8S/2647 Interrupt controller * Seven external interrupt pins (NMI, IRQ0 to IRQ5) * Internal interrupt sources 43 (H8S/2646, H8S/2646R, H8S/2645) 47 (H8S/2648, H8S/2648R, H8S/2647) * Power-down states * Page 4 of 1126 Eight priority levels settable Medium-speed mode * Sleep mode * Module-stop mode * Software standby mode * Hardware standby mode * Subclock operation REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Item Specification Operating modes Four MCU operating modes External Data Bus CPU Operating Description Mode Mode On-Chip ROM Initial Value Maximum Value On-chip ROM disabled Disabled expansion mode 16 bits 16 bits 5 On-chip ROM disabled Disabled expansion mode 8 bits 16 bits 6 On-chip ROM enabled expansion mode Enabled 8 bits 16 bits 7 Single-chip mode Enabled -- -- 4 Clock pulse generator Packages Advanced * On-chip PLL circuit (x1, x2, x4) * Input clock frequency: 4 to 20 MHz * Subclock frequency: 32.768 kHz * 144-pin plastic QFP (FP-144) Product lineup Model Name Mask ROM Version F-ZTAT Version ROM/RAM (Bytes) Packages HD6432646 HD64F2646R 128 k/4 k HD6432645 -- 64 k/2 k FP-144J/ FP-144JV FP-144G/ FP-144GV HD6432648 HD64F2648R 128 k/4 k HD6432647 -- 64 k/2 k FP-144J/ FP-144JV FP-144G/ FP-144GV The HD64F2646R and HD64F2648R use an FP-144J/FP-144JV package. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 5 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview 1.2 Internal Block Diagram Port 5 P52 P51 P50 Port A Port B WDT x 2 channel RAM PA7/A23/SEG24 PA6/A22/SEG23 PA5/A21/SEG22 PA4/A20/SEG21 PA3/A19/COM4 PA2/A18/COM3 PA1/A17/COM2 PA0/A16/COM1 PB7/A15/SEG16 PB6/A14/SEG15 PB5/A13/SEG14 PB4/A12/SEG13 PB3 / A11/SEG12 PB2/A10/SEG11 PB1/A9/SEG10 PB0/A8/SEG9 Port C ROM (mask ROM, flash memory*1) Peripheral address bus PC break controller Peripheral data bus DTC Bus controller PE7 / D7 PE6 / D6 PE5 / D5 PE4 / D4 PE3 / D3 PE2 / D2 PE1 / D1 PE0 / D0 H8S/2600 CPU Internal address bus PD7 / D15 PD6 / D14 PD5 / D13 PD4 / D12 PD3 / D11 PD2 / D10 PD1 / D9 PD0 / D8 Port E Interrupt controller Port F PF7/ PF6/AS/SEG20 PF5/RD/SEG19 PF4/HWR/SEG18 PF3/LWR/ADTRG/IRQ3 PF2/WAIT/SEG17 PF0/IRQ2 PLL Port D Internal data bus MD2 MD1 MD0 OSC2 OSC1 EXTAL XTAL PLLCAP PLLVSS STBY RES NMI FWE*2 HTxD HRxD Clock pulse generator VCC PWMVCC LPVCC VSS PWMVSS VCL V1 V2 V3 Figures 1.1 (1) and 1.1 (2) show internal block diagrams. PC7/A7/SEG8 PC6/A6/SEG7 PC5/A5/SEG6 PC4/A4/SEG5 PC3/A3/SEG4 PC2/A2/SEG3 PC1/A1/SEG2 PC0/A0/SEG1 HCAN SCI x 2 channel Port 2 PK7 PK6 Port K Port 3 LCDC TPU P20/TIOCA3 P21/TIOCB3 P22/TIOCC3 P23/TIOCD3 P24/TIOCA4 P25/TIOCB4 P26/TIOCA5 P27/TIOCB5 Motor control PWM timer A/D converter Port 9 PPG Port J Port 4 PJ0/ PWM2A PJ1/ PWM2B PJ2/ PWM2C PJ3/ PWM2D PJ4/ PWM2E PJ5/ PWM2F PJ6/ PWM2G PJ7/ PWM2H Vref AVCC AVSS P47 / AN7 P46 / AN6 P45 / AN5 P44 / AN4 P43 / AN3 P42 / AN2 P41 / AN1 P40 / AN0 Port H PH0/ PWM1A PH1/ PWM1B PH2/ PWM1C PH3/ PWM1D PH4/ PWM1E PH5/ PWM1F PH6/ PWM1G PH7/ PWM1H P10 / PO8/ TIOCA0 P11 / PO9/ TIOCB0 P12 / PO10/ TIOCC0 / TCLKA P13 / PO11/ TIOCD0 / TCLKB P14 / PO12/ TIOCA1/IRQ0 P15 / PO13/ TIOCB1 / TCLKC P16 / PO14/ TIOCA2/IRQ1 P17 / PO15/ TIOCB2 /TCLKD Port 1 P37 P36 P35/SCK1/IRQ5 P34/RxD1 P33/TxD1 P32/SCK0/IRQ4 P31/RxD0 P30/TxD0 P97 P96 P95 P94 P93/AN11 P92/AN10 P91/AN9 P90/AN8 Notes: 1. Flash memory version only. 2. The FWE pin is for compatibility with the flash memory version. Figure 1.1 (1) H8S/2646, H8S/2646R, and H8S/2645 Internal Block Diagram Page 6 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Port 5 P52/SCK2 P51/RxD2 P50/TxD2 Port A Port B WDT x 2 channel RAM PA7/A23/SEG40 PA6/ A22/SEG39 PA5/A21/SEG38 PA4/A20/SEG37 PA3/A19/COM4 PA2/A18/COM3 PA1/A17/COM2 PA0/A16/COM1 PB7/ A15/SEG32 PB6/ A14/SEG31 PB5/ A13/SEG30 PB4/ A12/SEG29 PB3 / A11/SEG28 PB2/ A10/SEG27 PB1/ A9/SEG26 PB0/ A8/SEG25 Port C ROM (mask ROM, flash memory*1) Peripheral address bus PC break controller Peripheral data bus DTC Bus controller PE7 / D7/SEG8 PE6 / D6/SEG7 PE5 /D5/SEG6 PE4 /D4/SEG5 PE3 /D3/SEG4 PE2 /D2/SEG3 PE1 /D1/SEG2 PE0 /D0/SEG1 H8S/2600 CPU Internal address bus PD7 / D15/SEG16 PD6 / D14/SEG15 PD5 / D13/SEG14 PD4 / D12/SEG13 PD3 / D11/SEG12 PD2 / D10/SEG11 PD1 / D9/SEG10 PD0 / D8/SEG9 Port E Interrupt controller Port F PF7/ PF6/ AS/SEG36 PF5/ RD/SEG35 PF4/ HWR/SEG34 PF3/ LWR/ADTRG/IRQ3 PF2/ WAIT/SEG33 PF0/ IRQ2 PLL Port D Internal data bus MD2 MD1 MD0 OSC2 OSC1 EXTAL XTAL PLLCAP PLLVSS STBY RES NMI FWE*2 HTxD HRxD Clock pulse generator VCC PWMVCC LPVCC VSS PWMVSS VCL V1 V2 V3 Section 1 Overview PC7/A7/ SEG24 PC6/A6/ SEG23 PC5/A5/SEG22 PC4/A4/SEG21 PC3/A3/SEG20 PC2/A2/SEG19 PC1/A1/SEG18 PC0/A0/SEG17 HCAN SCI x 3 channel Port 2 PK7 PK6 Port K Port 3 LCDC TPU P20/TIOCA3 P21/TIOCB3 P22/TIOCC3 P23/TIOCD3 P24/TIOCA4 P25/TIOCB4 P26/TIOCA5 P27/TIOCB5 Motor control PWM timer A/D converter Port 9 PPG Port J Port 4 PJ0/ PWM2A PJ1/ PWM2B PJ2/ PWM2C PJ3/ PWM2D PJ4/ PWM2E PJ5/ PWM2F PJ6/ PWM2G PJ7/ PWM2H Vref AVCC AVSS P47 / AN7 P46 / AN6 P45 / AN5 P44 / AN4 P43 / AN3 P42 / AN2 P41 / AN1 P40 / AN0 Port H PH0/PWM1A PH1/PWM1B PH2/PWM1C PH3/PWM1D PH4/PWM1E PH5/PWM1F PH6/PWM1G PH7/PWM1H P10 / PO8/ TIOCA0 P11 / PO9/ TIOCB0 P12 / PO10/TIOCC0 / TCLKA P13 / PO11/TIOCD0 / TCLKB P14 / PO12/TIOCA1/IRQ0 P15 / PO13/TIOCB1 / TCLKC P16 / PO14/TIOCA2/IRQ1 P17 / PO15/TIOCB2 /TCLKD Port 1 P37 P36 P35/ SCK1/IRQ5 P34/ RxD1 P33/ TxD1 P32/ SCK0/IRQ4 P31/ RxD0 P30/ TxD0 P97 P96 P95 P94 P93/ AN11 P92/ AN10 P91/ AN9 P90/ AN8 Notes: 1. Flash memory version only. 2. The FWE pin is for compatibility with the flash memory version. Figure 1.1 (2) H8S/2648, H8S/2648R, and H8S/2647 Internal Block Diagram REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 7 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview 1.3 Pin Description 1.3.1 Pin Arrangement 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 P17/PO15/TIOCB2/TCLKD P16/PO14/TIOCA2/IRQ1 P15/PO13/TIOCB1/TCLKC P14/PO12/TIOCA1/IRQ0 P13/PO11/TIOCD0/TCLKB P12/PO10/TIOCC0/TCLKA P11/PO9/TIOCB0 P10/PO8/TIOCA0 PF7/ PF3/LWR/ADTRG/IRQ3 PF0/IRQ2 FWE* EXTAL VSS XTAL VCL VCC VCC OSC2 OSC1 VSS PLLCAP PLLVSS STBY NMI RES P37 P36 P35/SCK1/IRQ5 P34/RXD1 P33/TXD1 P32/SCK0/IRQ4 P31/RXD0 P30/TXD0 MD0 MD1 Figure 1.2 (1) shows the pin arrangement of the H8S/2646, H8S/2646R, and H8S/2645, and figure 1.2 (2) shows that of the H8S/2648, H8S/2648R, and H8S/2647. Top View (FP-144J/FP-144JV, FP-144G/FP-144GV) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 MD2 PWMVSS PJ7/PWM2H PJ6/PWM2G PJ5/PWM2F PJ4/PWM2E PWMVCC PJ3/PWM2D PJ2/PWM2C PJ1/PWM2B PJ0/PWM2A PWMVSS PH7/PWM1H PH6/PWM1G PH5/PWM1F PH4/PWM1E PWMVCC PH3/PWM1D PH2/PWM1C PH1/PWM1B PH0/PWM1A PWMVSS PA3/A19/COM4 PA2/A18/COM3 PA1/A17/COM2 PA0/A16/COM1 PA7/A23/SEG24 PA6/A22/SEG23 PA5/A21/SEG22 PA4/A20/SEG21 PF6/AS/SEG20 PF5/RD/SEG19 VSS PF4/HWR/SEG18 PF2/WAIT/SEG17 PB7/A15/SEG16 V1 V2 V3 PE0/D0 PE1/D1 PE2/D2 PE3/D3 PE4/D4 PE5/D5 PE6/D6 PE7/D7 VSS PD0/D8 PD1/D9 PD2/D10 PD3/D11 PD4/D12 PD5/D13 PD6/D14 PD7/D15 LPVCC PC0/A0/SEG1 PC1/A1/SEG2 PC2/A2/SEG3 PC3/A3/SEG4 PC4/A4/SEG5 PC5/A5/SEG6 PC6/A6/SEG7 PC7/A7/SEG8 PB0/A8/SEG9 PB1/A9/SEG10 PB2/A10/SEG11 PB3/A11/SEG12 PB4/A12/SEG13 PB5/A13/SEG14 PB6/A14/SEG15 HTxD HRxD P50 P51 P52 P20/TIOCA3 P21/TIOCB3 P22/TIOCC3 P23/TIOCD3 P25/TIOCB4 VCC P24/TIOCA4 PK6 P27/TIOCB5 VSS P26/TIOCA5 PK7 AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6 P47/AN7 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94 P95 P96 P97 AVSS Note: * The FWE pin is a NC pin in the mask ROM versions. Figure 1.2 (1) H8S/2646, H8S/2646R, and H8S/2645 Pin Arrangement (FP-144J/FP-144JV, FP-144G/FP-144GV: Top View) Page 8 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 P17/PO15/TIOCB2/TCLKD P16/PO14/TIOCA2/IRQ1 P15/PO13/TIOCB1/TCLKC P14/PO12/TIOCA1/IRQ0 P13/PO11/TIOCD0/TCLKB P12/PO10/TIOCC0/TCLKA P11/PO9/TIOCB0 P10/PO8/TIOCA0 PF7/ PF3/LWR/ADTRG/IRQ3 PF0/IRQ2 FWE* EXTAL VSS XTAL VCL VCC VCC OSC2 OSC1 VSS PLLCAP PLLVSS STBY NMI RES P37 P36 P35/SCK1/IRQ5 P34/RXD1 P33/TXD1 P32/SCK0/IRQ4 P31/RXD0 P30/TXD0 MD0 MD1 Section 1 Overview Top View (FP-144J/FP-144JV, FP-144G/FP-144GV) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 MD2 PWMVSS PJ7/PWM2H PJ6/PWM2G PJ5/PWM2F PJ4/PWM2E PWMVCC PJ3/PWM2D PJ2/PWM2C PJ1/PWM2B PJ0/PWM2A PWMVSS PH7/PWM1H PH6/PWM1G PH5/PWM1F PH4/PWM1E PWMVCC PH3/PWM1D PH2/PWM1C PH1/PWM1B PH0/PWM1A PWMVSS PA3/A19/COM4 PA2/A18/COM3 PA1/A17/COM2 PA0/A16/COM1 PA7/A23/SEG40 PA6/A22/SEG39 PA5/A21/SEG38 PA4/A20/SEG37 PF6/AS/SEG36 PF5/RD/SEG35 VSS PF4/HWR/SEG34 PF2/WAIT/SEG33 PB7/A15/SEG32 V1 V2 V3 PE0/D0/SEG1 PE1/D1/SEG2 PE2/D2/SEG3 PE3/D3/SEG4 PE4/D4/SEG5 PE5/D5/SEG6 PE6/D6/SEG7 PE7/D7/SEG8 VSS PD0/D8/SEG9 PD1/D9/SEG10 PD2/D10/SEG11 PD3/D11/SEG12 PD4/D12/SEG13 PD5/D13/SEG14 PD6/D14/SEG15 PD7/D15/SEG16 LPVCC PC0/A0/SEG17 PC1/A1/SEG18 PC2/A2/SEG19 PC3/A3/SEG20 PC4/A4/SEG21 PC5/A5/SEG22 PC6/A6/SEG23 PC7/A7/SEG24 PB0/A8/SEG25 PB1/A9/SEG26 PB2/A10/SEG27 PB3/A11/SEG28 PB4/A12/SEG29 PB5/A13/SEG30 PB6/A14/SEG31 HTxD HRxD P50/TxD2 P51/RxD2 P52/SCK2 P20/TIOCA3 P21/TIOCB3 P22/TIOCC3 P23/TIOCD3 P25/TIOCB4 VCC P24/TIOCA4 PK6 P27/TIOCB5 VSS P26/TIOCA5 PK7 AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6 P47/AN7 P90/AN8 P91/AN9 P92/AN10 P93/AN11 P94 P95 P96 P97 AVSS Note: * The FWE pin is a NC pin in the mask ROM versions. Figure 1.2 (2) H8S/2648, H8S/2648R, and H8S/2647 Pin Arrangement (FP-144J/FP-144JV, FP-144G/FP-144GV: Top View) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 9 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview 1.3.2 Pin Functions in Each Operating Mode Tables 1.2 (1) and 1.2 (2) show the pin functions in each of the operating modes. Table 1.2 (1) Pin Functions in Each Operating Mode (H8S/2646, H8S/2646R, H8S/2645) Pin Name Pin No. Mode 4 Mode 5 Mode 6 Mode 7 1 V1 V1 V1 V1 2 V2 V2 V2 V2 3 V3 V3 V3 V3 4 PE0/D0 PE0/D0 PE0/D0 PE0 5 PE1/D1 PE1/D1 PE1/D1 PE1 6 PE2/D2 PE2/D2 PE2/D2 PE2 7 PE3/D3 PE3/D3 PE3/D3 PE3 8 PE4/D4 PE4/D4 PE4/D4 PE4 9 PE5/D5 PE5/D5 PE5/D5 PE5 10 PE6/D6 PE6/D6 PE6/D6 PE6 11 PE7/D7 PE7/D7 PE7/D7 PE7 12 Vss Vss Vss Vss 13 D8 D8 D8 PD0 14 D9 D9 D9 PD1 15 D10 D10 D10 PD2 16 D11 D11 D11 PD3 17 D12 D12 D12 PD4 18 D13 D13 D13 PD5 19 D14 D14 D14 PD6 20 D15 D15 D15 PD7 21 LPVcc LPVcc LPVcc LPVcc 22 A0 A0 PC0/A0/SEG1 PC0/SEG1 23 A1 A1 PC1/A1/SEG2 PC1/SEG2 24 A2 A2 PC2/A2/SEG3 PC2/SEG3 25 A3 A3 PC3/A3/SEG4 PC3/SEG4 26 A4 A4 PC4/A4/SEG5 PC4/SEG5 27 A5 A5 PC5/A5/SEG6 PC5/SEG6 Page 10 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Pin Name Pin No. Mode 4 Mode 5 Mode 6 Mode 7 28 A6 A6 PC6/A6/SEG7 PC6/SEG7 29 A7 A7 PC7/A7/SEG8 PC7/SEG8 30 PB0/A8/SEG9 PB0/A8/SEG9 PB0/A8/SEG9 PB0/SEG9 31 PB1/A9/SEG10 PB1/A9/SEG10 PB1/A9/SEG10 PB1/SEG10 32 PB2/A10/SEG11 PB2/A10/SEG11 PB2/A10/SEG11 PB2/SEG11 33 PB3/A11/SEG12 PB3/A11/SEG12 PB3/A11/SEG12 PB3/SEG12 34 PB4/A12/SEG13 PB4/A12/SEG13 PB4/A12/SEG13 PB4/SEG13 35 PB5/A13/SEG14 PB5/A13/SEG14 PB5/A13/SEG14 PB5/SEG14 36 PB6/A14/SEG15 PB6/A14/SEG15 PB6/A14/SEG15 PB6/SEG15 37 PB7/A15/SEG16 PB7/A15/SEG16 PB7/A15/SEG16 PB7/SEG16 38 PF2/WAIT/SEG17 PF2/WAIT/SEG17 PF2/WAIT/SEG17 PF2/SEG17 39 HWR/SEG18 HWR/SEG18 HWR/SEG18 PF4/SEG18 40 Vss Vss Vss Vss 41 RD/SEG19 RD/SEG19 RD/SEG19 PF5/SEG19 42 AS/SEG20 AS/SEG20 AS/SEG20 PF6/SEG20 43 PA4/A20/SEG21 PA4/A20/SEG21 PA4/A20/SEG21 PA4/SEG21 44 PA5/A21/SEG22 PA5/A21/SEG22 PA5/A21/SEG22 PA5/SEG22 45 PA6/A22/SEG23 PA6/A22/SEG23 PA6/A22/SEG23 PA6/SEG23 46 PA7/A23/SEG24 PA7/A23/SEG24 PA7/A23/SEG24 PA7/SEG24 47 PA0/A16/COM1 PA0/A16/COM1 PA0/A16/COM1 PA0/COM1 48 PA1/A17/COM2 PA1/A17/COM2 PA1/A17/COM2 PA1/COM2 49 PA2/A18/COM3 PA2/A18/COM3 PA2/A18/COM3 PA2/COM3 50 PA3/A19/COM4 PA3/A19/COM4 PA3/A19/COM4 PA3/COM4 51 PWMVss PWMVss PWMVss PWMVss 52 PH0/PWM1A PH0/PWM1A PH0/PWM1A PH0/PWM1A 53 PH1/PWM1B PH1/PWM1B PH1/PWM1B PH1/PWM1B 54 PH2/PWM1C PH2/PWM1C PH2/PWM1C PH2/PWM1C 55 PH3/PWM1D PH3/PWM1D PH3/PWM1D PH3/PWM1D 56 PWMVcc PWMVcc PWMVcc PWMVcc 57 PH4/PWM1E PH4/PWM1E PH4/PWM1E PH4/PWM1E 58 PH5/PWM1F PH5/PWM1F PH5/PWM1F PH5/PWM1F REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 11 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Pin Name Pin No. Mode 4 Mode 5 Mode 6 Mode 7 59 PH6/PWM1G PH6/PWM1G PH6/PWM1G PH6/PWM1G 60 PH7/PWM1H PH7/PWM1H PH7/PWM1H PH7/PWM1H 61 PWMVss PWMVss PWMVss PWMVss 62 PJ0/PWM2A PJ0/PWM2A PJ0/PWM2A PJ0/PWM2A 63 PJ1/PWM2B PJ1/PWM2B PJ1/PWM2B PJ1/PWM2B 64 PJ2/PWM2C PJ2/PWM2C PJ2/PWM2C PJ2/PWM2C 65 PJ3/PWM2D PJ3/PWM2D PJ3/PWM2D PJ3/PWM2D 66 PWMVcc PWMVcc PWMVcc PWMVcc 67 PJ4/PWM2E PJ4/PWM2E PJ4/PWM2E PJ4/PWM2E 68 PJ5/PWM2F PJ5/PWM2F PJ5/PWM2F PJ5/PWM2F 69 PJ6/PWM2G PJ6/PWM2G PJ6/PWM2G PJ6/PWM2G 70 PJ7/PWM2H PJ7/PWM2H PJ7/PWM2H PJ7/PWM2H 71 PWMVss PWMVss PWMVss PWMVss 72 MD2 MD2 MD2 MD2 73 MD1 MD1 MD1 MD1 74 MD0 MD0 MD0 MD0 75 P30/TxD0 P30/TxD0 P30/TxD0 P30/TxD0 76 P31/RxD0 P31/RxD0 P31/RxD0 P31/RxD0 77 P32/SCK0/IRQ4 P32/SCK0/IRQ4 P32/SCK0/IRQ4 P32/SCK0/IRQ4 78 P33/TxD1 P33/TxD1 P33/TxD1 P33/TxD1 79 P34/RxD1 P34/RxD1 P34/RxD1 P34/RxD1 80 P35/SCK1/IRQ5 P35/SCK1/IRQ5 P35/SCK1/IRQ5 P35/SCK1/IRQ5 81 P36 P36 P36 P36 82 P37 P37 P37 P37 83 RES RES RES RES 84 NMI NMI NMI NMI 85 STBY STBY STBY STBY 86 PLLVss PLLVss PLLVss PLLVss 87 PLLCAP PLLCAP PLLCAP PLLCAP 88 Vss Vss Vss Vss 89 OSC1 OSC1 OSC1 OSC1 Page 12 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Pin Name Pin No. Mode 4 Mode 5 Mode 6 Mode 7 90 OSC2 OSC2 OSC2 OSC2 91 Vcc Vcc Vcc Vcc 92 Vcc Vcc Vcc Vcc 93 VCL VCL VCL VCL 94 XTAL XTAL XTAL XTAL 95 Vss Vss Vss Vss 96 EXTAL EXTAL EXTAL EXTAL 97 FWE FWE FWE FWE 98 PF0/IRQ2 PF0/IRQ2 PF0/IRQ2 PF0/IRQ2 99 PF3/LWR/ADTRG/IRQ3 PF3/LWR/ADTRG/IRQ3 PF3/LWR/ADTRG/IRQ3 PF3/ADTRG/IRQ3 100 PF7/ PF7/ PF7/ PF7/ 101 P10/PO8/TIOCA0 P10/PO8/TIOCA0 P10/PO8/TIOCA0 P10/PO8/TIOCA0 102 P11/PO9/TIOCB0 P11/PO9/TIOCB0 P11/PO9/TIOCB0 P11/PO9/TIOCB0 103 P12/PO10/TIOCC0/ TCLKA P12/PO10/TIOCC0/ TCLKA P12/PO10/TIOCC0/ TCLKA P12/PO10/TIOCC0/ TCLKA 104 P13/PO11/TIOCD0/ TCLKB P13/PO11/TIOCD0/ TCLKB P13/PO11/TIOCD0/ TCLKB P13/PO11/TIOCD0/ TCLKB 105 P14/PO12/TIOCA1/ IRQ0 P14/PO12/TIOCA1/ IRQ0 P14/PO12/TIOCA1/ IRQ0 P14/PO12/TIOCA1/ IRQ0 106 P15/PO13/TIOCB1/ TCLKC P15/PO13/TIOCB1/ TCLKC P15/PO13/TIOCB1/ TCLKC P15/PO13/TIOCB1/ TCLKC 107 P16/PO14/TIOCA2/ IRQ1 P16/PO14/TIOCA2/ IRQ1 P16/PO14/TIOCA2/ IRQ1 P16/PO14/TIOCA2/ IRQ1 108 P17/PO15/TIOCB2/ TCLKD P17/PO15/TIOCB2/ TCLKD P17/PO15/TIOCB2/ TCLKD P17/PO15/TIOCB2/ TCLKD 109 HTxD HTxD HTxD HTxD 110 HRxD HRxD HRxD HRxD 111 P50 P50 P50 P50 112 P51 P51 P51 P51 113 P52 P52 P52 P52 114 P20/TIOCA3 P20/TIOCA3 P20/TIOCA3 P20/TIOCA3 115 P21/TIOCB3 P21/TIOCB3 P21/TIOCB3 P21/TIOCB3 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 13 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Pin Name Pin No. Mode 4 Mode 5 Mode 6 Mode 7 116 P22/TIOCC3 P22/TIOCC3 P22/TIOCC3 P22/TIOCC3 117 P23/TIOCD3 P23/TIOCD3 P23/TIOCD3 P23/TIOCD3 118 P25/TIOCB4 P25/TIOCB4 P25/TIOCB4 P25/TIOCB4 119 Vcc Vcc Vcc Vcc 120 P24/TIOCA4 P24/TIOCA4 P24/TIOCA4 P24/TIOCA4 121 PK6 PK6 PK6 PK6 122 P27/TIOCB5 P27/TIOCB5 P27/TIOCB5 P27/TIOCB5 123 Vss Vss Vss Vss 124 P26/TIOCA5 P26/TIOCA5 P26/TIOCA5 P26/TIOCA5 125 PK7 PK7 PK7 PK7 126 AVcc AVcc AVcc AVcc 127 Vref Vref Vref Vref 128 P40/AN0 P40/AN0 P40/AN0 P40/AN0 129 P41/AN1 P41/AN1 P41/AN1 P41/AN1 130 P42/AN2 P42/AN2 P42/AN2 P42/AN2 131 P43/AN3 P43/AN3 P43/AN3 P43/AN3 132 P44/AN4 P44/AN4 P44/AN4 P44/AN4 133 P45/AN5 P45/AN5 P45/AN5 P45/AN5 134 P46/AN6 P46/AN6 P46/AN6 P46/AN6 135 P47/AN7 P47/AN7 P47/AN7 P47/AN7 136 P90/AN8 P90/AN8 P90/AN8 P90/AN8 137 P91/AN9 P91/AN9 P91/AN9 P91/AN9 138 P92/AN10 P92/AN10 P92/AN10 P92/AN10 139 P93/AN11 P93/AN11 P93/AN11 P93/AN11 140 P94 P94 P94 P94 141 P95 P95 P95 P95 142 P96 P96 P96 P96 143 P97 P97 P97 P97 144 AVss AVss AVss AVss Note: In mode 4 and mode 5 the following pins (D8 to D15, A0 to A7, RD, AS, HWR) are used to interface with external ROM. Therefore, these pins must not be set to the SEG signal. Page 14 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Table 1.2 (2) Pin Functions in Each Operating Mode (H8S/2648, H8S/2648R, H8S/2647) Pin Name Pin No. Mode 4 Mode 5 Mode 6 Mode 7 1 V1 V1 V1 V1 2 V2 V2 V2 V2 3 V3 V3 V3 V3 4 PE0/D0/SEG1 PE0/D0/SEG1 PE0/D0/SEG1 PE0/SEG1 5 PE1/D1/SEG2 PE1/D1/SEG2 PE1/D1/SEG2 PE1/SEG2 6 PE2/D2/SEG3 PE2/D2/SEG3 PE2/D2/SEG3 PE2/SEG3 7 PE3/D3/SEG4 PE3/D3/SEG4 PE3/D3/SEG4 PE3/SEG4 8 PE4/D4/SEG5 PE4/D4/SEG5 PE4/D4/SEG5 PE4/SEG5 9 PE5/D5/SEG6 PE5/D5/SEG6 PE5/D5/SEG6 PE5/SEG6 10 PE6/D6/SEG7 PE6/D6/SEG7 PE6/D6/SEG7 PE6/SEG7 11 PE7/D7/SEG8 PE7/D7/SEG8 PE7/D7/SEG8 PE7/SEG8 12 Vss Vss Vss Vss 13 D8 D8 D8/SEG9 PD0/SEG9 14 D9 D9 D9/SEG10 PD1/SEG10 15 D10 D10 D10/SEG11 PD2/SEG11 16 D11 D11 D11/SEG12 PD3/SEG12 17 D12 D12 D12/SEG13 PD4/SEG13 18 D13 D13 D13/SEG14 PD5/SEG14 19 D14 D14 D14/SEG15 PD6/SEG15 20 D15 D15 D15/SEG16 PD7/SEG16 21 LPVcc LPVcc LPVcc LPVcc 22 A0 A0 PC0/A0/SEG17 PC0/SEG17 23 A1 A1 PC1/A1/SEG18 PC1/SEG18 24 A2 A2 PC2/A2/SEG19 PC2/SEG19 25 A3 A3 PC3/A3/SEG20 PC3/SEG20 26 A4 A4 PC4/A4/SEG21 PC4/SEG21 27 A5 A5 PC5/A5/SEG22 PC5/SEG22 28 A6 A6 PC6/A6/SEG23 PC6/SEG23 29 A7 A7 PC7/A7/SEG24 PC7/SEG24 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 15 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Pin Name Pin No. Mode 4 Mode 5 Mode 6 Mode 7 30 PB0/A8/SEG25 PB0/A8/SEG25 PB0/A8/SEG25 PB0/SEG25 31 PB1/A9/SEG26 PB1/A9/SEG26 PB1/A9/SEG26 PB1/SEG26 32 PB2/A10/SEG27 PB2/A10/SEG27 PB2/A10/SEG27 PB2/SEG27 33 PB3/A11/SEG28 PB3/A11/SEG28 PB3/A11/SEG28 PB3/SEG28 34 PB4/A12/SEG29 PB4/A12/SEG29 PB4/A12/SEG29 PB4/SEG29 35 PB5/A13/SEG30 PB5/A13/SEG30 PB5/A13/SEG30 PB5/SEG30 36 PB6/A14/SEG31 PB6/A14/SEG31 PB6/A14/SEG31 PB6/SEG31 37 PB7/A15/SEG32 PB7/A15/SEG32 PB7/A15/SEG32 PB7/SEG32 38 WAIT/SEG33 WAIT/SEG33 WAIT/SEG33 PF2/SEG33 39 HWR/SEG34 HWR/SEG34 HWR/SEG34 PF4/SEG34 40 Vss Vss Vss Vss 41 RD/SEG35 RD/SEG35 RD/SEG35 PF5/SEG35 42 AS/SEG36 AS/SEG36 AS/SEG36 PF6/SEG36 43 PA4/A20/SEG37 PA4/A20/SEG37 PA4/A20/SEG37 PA4/SEG37 44 PA5/A21/SEG38 PA5/A21/SEG38 PA5/A21/SEG38 PA5/SEG38 45 PA6/A22/SEG39 PA6/A22/SEG39 PA6/A22/SEG39 PA6/SEG39 46 PA7/A23/SEG40 PA7/A23/SEG40 PA7/A23/SEG40 PA7/SEG40 47 PA0/A16/COM1 PA0/A16/COM1 PA0/A16/COM1 PA0/COM1 48 PA1/A17/COM2 PA1/A17/COM2 PA1/A17/COM2 PA1/COM2 49 PA2/A18/COM3 PA2/A18/COM3 PA2/A18/COM3 PA2/COM3 50 PA3/A19/COM4 PA3/A19/COM4 PA3/A19/COM4 PA3/COM4 51 PWMVss PWMVss PWMVss PWMVss 52 PH0/PWM1A PH0/PWM1A PH0/PWM1A PH0/PWM1A 53 PH1/PWM1B PH1/PWM1B PH1/PWM1B PH1/PWM1B 54 PH2/PWM1C PH2/PWM1C PH2/PWM1C PH2/PWM1C 55 PH3/PWM1D PH3/PWM1D PH3/PWM1D PH3/PWM1D 56 PWMVcc PWMVcc PWMVcc PWMVcc 57 PH4/PWM1E PH4/PWM1E PH4/PWM1E PH4/PWM1E 58 PH5/PWM1F PH5/PWM1F PH5/PWM1F PH5/PWM1F 59 PH6/PWM1G PH6/PWM1G PH6/PWM1G PH6/PWM1G 60 PH7/PWM1H PH7/PWM1H PH7/PWM1H PH7/PWM1H Page 16 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Pin Name Pin No. Mode 4 Mode 5 Mode 6 Mode 7 61 PWMVss PWMVss PWMVss PWMVss 62 PJ0/PWM2A PJ0/PWM2A PJ0/PWM2A PJ0/PWM2A 63 PJ1/PWM2B PJ1/PWM2B PJ1/PWM2B PJ1/PWM2B 64 PJ2/PWM2C PJ2/PWM2C PJ2/PWM2C PJ2/PWM2C 65 PJ3/PWM2D PJ3/PWM2D PJ3/PWM2D PJ3/PWM2D 66 PWMVcc PWMVcc PWMVcc PWMVcc 67 PJ4/PWM2E PJ4/PWM2E PJ4/PWM2E PJ4/PWM2E 68 PJ5/PWM2F PJ5/PWM2F PJ5/PWM2F PJ5/PWM2F 69 PJ6/PWM2G PJ6/PWM2G PJ6/PWM2G PJ6/PWM2G 70 PJ7/PWM2H PJ7/PWM2H PJ7/PWM2H PJ7/PWM2H 71 PWMVss PWMVss PWMVss PWMVss 72 MD2 MD2 MD2 MD2 73 MD1 MD1 MD1 MD1 74 MD0 MD0 MD0 MD0 75 P30/TxD0 P30/TxD0 P30/TxD0 P30/TxD0 76 P31/RxD0 P31/RxD0 P31/RxD0 P31/RxD0 77 P32/SCK0/IRQ4 P32/SCK0/IRQ4 P32/SCK0/IRQ4 P32/SCK0/IRQ4 78 P33/TxD1 P33/TxD1 P33/TxD1 P33/TxD1 79 P34/RxD1 P34/RxD1 P34/RxD1 P34/RxD1 80 P35/SCK1/IRQ5 P35/SCK1/IRQ5 P35/SCK1/IRQ5 P35/SCK1/IRQ5 81 P36 P36 P36 P36 82 P37 P37 P37 P37 83 RES RES RES RES 84 NMI NMI NMI NMI 85 STBY STBY STBY STBY 86 PLLVss PLLVss PLLVss PLLVss 87 PLLCAP PLLCAP PLLCAP PLLCAP 88 Vss Vss Vss Vss 89 OSC1 OSC1 OSC1 OSC1 90 OSC2 OSC2 OSC2 OSC2 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 17 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Pin Name Pin No. Mode 4 Mode 5 Mode 6 Mode 7 91 Vcc Vcc Vcc Vcc 92 Vcc Vcc Vcc Vcc 93 VCL VCL VCL VCL 94 XTAL XTAL XTAL XTAL 95 Vss Vss Vss Vss 96 EXTAL EXTAL EXTAL EXTAL 97 FWE FWE FWE FWE 98 PF0/IRQ2 PF0/IRQ2 PF0/IRQ2 PF0/IRQ2 99 PF3/LWR/ADTRG/IRQ3 PF3/LWR/ADTRG/IRQ3 PF3/LWR/ADTRG/IRQ3 PF3/ADTRG/IRQ3 100 PF7/ PF7/ PF7/ PF7/ 101 P10/PO8/TIOCA0 P10/PO8/TIOCA0 P10/PO8/TIOCA0 P10/PO8/TIOCA0 102 P11/PO9/TIOCB0 P11/PO9/TIOCB0 P11/PO9/TIOCB0 P11/PO9/TIOCB0 103 P12/PO10/TIOCC0/ TCLKA P12/PO10/TIOCC0/ TCLKA P12/PO10/TIOCC0/ TCLKA P12/PO10/TIOCC0/ TCLKA 104 P13/PO11/TIOCD0/ TCLKB P13/PO11/TIOCD0/ TCLKB P13/PO11/TIOCD0/ TCLKB P13/PO11/TIOCD0/ TCLKB 105 P14/PO12/TIOCA1/ IRQ0 P14/PO12/TIOCA1/ IRQ0 P14/PO12/TIOCA1/ IRQ0 P14/PO12/TIOCA1/ IRQ0 106 P15/PO13/TIOCB1/ TCLKC P15/PO13/TIOCB1/ TCLKC P15/PO13/TIOCB1/ TCLKC P15/PO13/TIOCB1/ TCLKC 107 P16/PO14/TIOCA2/ IRQ1 P16/PO14/TIOCA2/ IRQ1 P16/PO14/TIOCA2/ IRQ1 P16/PO14/TIOCA2/ IRQ1 108 P17/PO15/TIOCB2/ TCLKD P17/PO15/TIOCB2/ TCLKD P17/PO15/TIOCB2/ TCLKD P17/PO15/TIOCB2/ TCLKD 109 HTxD HTxD HTxD HTxD 110 HRxD HRxD HRxD HRxD 111 P50/TxD2 P50/TxD2 P50/TxD2 P50/TxD2 112 P51/RxD2 P51/RxD2 P51/RxD2 P51/RxD2 113 P52/SCK2 P52/SCK2 P52/SCK2 P52/SCK2 114 P20/TIOCA3 P20/TIOCA3 P20/TIOCA3 P20/TIOCA3 115 P21/TIOCB3 P21/TIOCB3 P21/TIOCB3 P21/TIOCB3 116 P22/TIOCC3 P22/TIOCC3 P22/TIOCC3 P22/TIOCC3 Page 18 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Pin Name Pin No. Mode 4 Mode 5 Mode 6 Mode 7 117 P23/TIOCD3 P23/TIOCD3 P23/TIOCD3 P23/TIOCD3 118 P25/TIOCB4 P25/TIOCB4 P25/TIOCB4 P25/TIOCB4 119 Vcc Vcc Vcc Vcc 120 P24/TIOCA4 P24/TIOCA4 P24/TIOCA4 P24/TIOCA4 121 PK6 PK6 PK6 PK6 122 P27/TIOCB5 P27/TIOCB5 P27/TIOCB5 P27/TIOCB5 123 Vss Vss Vss Vss 124 P26/TIOCA5 P26/TIOCA5 P26/TIOCA5 P26/TIOCA5 125 PK7 PK7 PK7 PK7 126 AVcc AVcc AVcc AVcc 127 Vref Vref Vref Vref 128 P40/AN0 P40/AN0 P40/AN0 P40/AN0 129 P41/AN1 P41/AN1 P41/AN1 P41/AN1 130 P42/AN2 P42/AN2 P42/AN2 P42/AN2 131 P43/AN3 P43/AN3 P43/AN3 P43/AN3 132 P44/AN4 P44/AN4 P44/AN4 P44/AN4 133 P45/AN5 P45/AN5 P45/AN5 P45/AN5 134 P46/AN6 P46/AN6 P46/AN6 P46/AN6 135 P47/AN7 P47/AN7 P47/AN7 P47/AN7 136 P90/AN8 P90/AN8 P90/AN8 P90/AN8 137 P91/AN9 P91/AN9 P91/AN9 P91/AN9 138 P92/AN10 P92/AN10 P92/AN10 P92/AN10 139 P93/AN11 P93/AN11 P93/AN11 P93/AN11 140 P94 P94 P94 P94 141 P95 P95 P95 P95 142 P96 P96 P96 P96 143 P97 P97 P97 P97 144 AVss AVss AVss AVss Note: In mode 4 and mode 5 the following pins (D8 to D15, A0 to A7, RD, AS, HWR) are used to interface with external ROM. Therefore, these pins must not be set to the SEG signal. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 19 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview 1.3.3 Pin Functions Table 1.3 outlines the pin functions of the H8S/2646. Table 1.3 Pin Functions Type Symbol I/O Name and Function Power Vcc Input Power supply: For connection to the power supply. All Vcc pins should be connected to the system power supply. PWMVcc Input PWM port power supply: Power supply pin for port H, port J, and the motor control PWM timer output LPVcc Input Port power supply: Power supply pin for ports A, B, C, D, E, and part of port F (PF2 and PF4 to PF6) V1, V2, V3 Input LCD power supply: Power supply pin for LCD controller/driver. There is an on-chip power supply division resistor, so this pin is normally left open. Power supply conditions: LPVcc V1 V2 V3 Vss Vss Input Ground: For connection to ground (0 V). All Vss pins should be connected to the system power supply (0 V). PWMVss Input Ground: Power supply pin for port H, port J, and the motor control PWM timer output. Connect all pins to the system power supply (0 V) VCL Input On-chip step-down power supply pin: Pin for connecting the on-chip step-down power supply to a capacitor for voltage stabilization. Connect to Vss via a 0.1 F capacitor (which should be located near the pin). Do not connect this pin to an external power supply. PLLVss Input PLL ground: Ground for on-chip PLL oscillator. PLLCAP Input PLL capacitance: External capacitance pin for on-chip PLL oscillator. XTAL Input Connects to a crystal oscillator. See section 21, Clock Pulse Generator, for typical connection diagrams for a crystal oscillator. Clock Use a crystal resonator for the system clock pulse generator. External clock drive cannot be used. EXTAL Page 20 of 1126 Input Connects to a crystal oscillator. See section 21, Clock Pulse Generator, for typical connection diagrams for a crystal oscillator. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Type Symbol I/O Name and Function Clock OSC1 Input Subclock: Connects to a 32 kHz crystal oscillator. See section 21, Clock Pulse Generator, for typical connection diagrams for a crystal oscillator. OSC2 Input Subclock: Connects to a 32 kHz crystal oscillator. See section 21, Clock Pulse Generator, for typical connection diagrams for a crystal oscillator. Output System clock: Supplies the system clock to an external device. MD2 to MD0 Input Mode pins: These pins set the operating mode. The relation between the settings of pins MD2 to MD0 and the operating mode is shown below. These pins should not be changed while the H8S/2646 Group is operating. Operating mode control MD2 MD1 MD0 Operating Mode 0 0 0 -- 1 -- 0 -- 1 -- 0 Mode 4 1 Mode 5 0 Mode 6 1 Mode 7 1 1 0 1 System control Interrupts Address bus RES Input Reset input: When this pin is driven low, the chip is reset. STBY Input Standby: When this pin is driven low, a transition is made to hardware standby mode. FWE Input Flash write enable: Pin for flash memory use (in planning stage). NMI Input Nonmaskable interrupt: Requests a nonmaskable interrupt. When this pin is not used, it should be fixed high. IRQ5 to IRQ0 Input Interrupt request 5 to 0: These pins request a maskable interrupt. A23 to A0 Address bus: These pins output an address. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Output Page 21 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Type Symbol I/O Name and Function Data bus D15 to D0 I/O Data bus: These pins constitute a bidirectional data bus. Bus control AS Output Address strobe: When this pin is low, it indicates that address output on the address bus is enabled. RD Output Read: When this pin is low, it indicates that the external address space can be read. HWR Output High write: A strobe signal that writes to external space and indicates that the upper half (D15 to D8) of the data bus is enabled. LWR Output Low write: A strobe signal that writes to external space and indicates that the lower half (D7 to D0) of the data bus is enabled. WAIT Input Wait: It is necessary to insert a wait state into the bus cycle when accessing the external three-state address space. TCLKD to TCLKA Input Clock input D to A: These pins input an external clock. TIOCA0, TIOCB0, TIOCC0, TIOCD0 I/O Input capture/ output compare match A0 to D0: The TGR0A to TGR0D input capture input or output compare output, or PWM output pins. TIOCA1, TIOCB1 I/O Input capture/ output compare match A1 and B1: The TGR1A and TGR1B input capture input or output compare output, or PWM output pins. TIOCA2, TIOCB2 I/O Input capture/ output compare match A2 and B2: The TGR2A and TGR2B input capture input or output compare output, or PWM output pins. TIOCA3, TIOCB3, TIOCC3, TIOCD3 I/O Input capture/ output compare match A3 to D3: The TGR3A to TGR3D input capture input or output compare output, or PWM output pins. TIOCA4, TIOCB4 I/O Input capture/output compare match A4 and B4: The TGR4A and TGR4B input capture input or output compare output, or PWM output pins. TIOCA5, TIOCB5 I/O Input capture/output compare match A5 and B5: The TGR5A and TGR5B input capture input or output compare output, or PWM output pins. 16-bit timer pulse unit (TPU) Page 22 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Type Symbol I/O Name and Function Programmable pulse generator (PPG) PO15 to PO8 Output Pulse output 15 to 8: Pulse output pins. Serial communication interface (SCI)/ Smart Card interface TxD1, TxD0 Output Transmit data: Data output pins. RxD1, RxD0 Input Receive data: Data input pins. SCK1, SCK0 I/O Serial clock: Clock I/O pins. The SCK0 output type is NMOS push-pull. TxD2 to TxD0 Output Transmit data: Data output pins. RxD2 to RxD0 Input Receive data: Data input pins. SCK2 to SCK0 I/O Serial clock: Clock I/O pins. The SCK0 output type is NMOS push-pull. HTxD Output HCAN transmit data: Pin for CAN bus transmission. HRxD Input HCAN receive data: Pin for CAN bus reception. H8S/2646, H8S/2646R, H8S/2645 Serial communication interface (SCI)/ Smart Card interface H8S/2648, H8S/2648R, H8S/2647 HCAN A/D converter Motor control PWM AN11 to AN0 Input Analog 11 to 0: Analog input pins. ADTRG Input A/D conversion external trigger input: Pin for input of an external trigger to start A/D conversion. AVcc Input Analog power supply: A/D converter power supply pin. If the A/D converter is not used, connect this pin to the system power supply (+5 V). AVss Input Analog ground: Analog circuit ground and reference voltage. Connect this pin to the system power supply (0 V). Vref Input Analog reference power supply: A/D converter reference voltage input pin. If the A/D converter is not used, connect this pin to the system power supply (+5 V). PWM1H to PWM1A Output PWM output: Motor control PWM channel 1 output pins. PWM2H to PWM2A Output PWM output: Motor control PWM channel 2 output pins. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 23 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Type Symbol I/O Name and Function LCD controller/ driver SEG24 to SEG1 (H8S/2646, H8S/2646R, H8S/2645) Output LCD segment output: LCD segment output pins. COM4 to COM1 Output LCD common output: LCD common output pins P17 to P10 I/O Port 1: 8-bit I/O pins. Input or output can be designated for each bit by means of the port 1 data direction register (P1DDR). P27 to P20 I/O Port 2: 8-bit I/O pins. Input or output can be designated for each bit by means of the port 2 data direction register (P2DDR). P37 to P30 I/O Port 3: 8-bit I/O pins. Input or output can be designated for each bit by means of the port 3 data direction register (P3DDR). P47 to P40 Input Port 4: 8-bit input pins. P52 to P50 I/O Port 5: 3-bit I/O pins. Input or output can be designated for each bit by means of the port 5 data direction register (P5DDR). P97 to P90 Input Port 9: 8-bit input pins. PA7 to PA0 I/O Port A: 8-bit I/O pins. Input or output can be designated for each bit by means of the port A data direction register (PADDR). PB7 to PB0 I/O Port B: 8-bit I/O pins. Input or output can be designated for each bit by means of the port B data direction register (PBDDR). PC7 to PC0 I/O Port C: 8-bit I/O pins. Input or output can be designated for each bit by means of the port C data direction register (PCDDR). PD7 to PD0 I/O Port D: 8-bit I/O pins. Input or output can be designated for each bit by means of the port D data direction register (PDDDR). PE7 to PE0 I/O Port E: 8-bit I/O pins. Input or output can be designated for each bit by means of the port E data direction register (PEDDR). SEG40 to SEG1 (H8S/2648, H8S/2648R, H8S/2647) I/O ports Page 24 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 1 Overview Type Symbol I/O Name and Function I/O ports PF7 to PF2, PF0 I/O Port F: 7-bit I/O pins. Input or output can be designated for each bit by means of the port F data direction register (PFDDR). PH7 to PH0 I/O Port H: 8-bit I/O pins. Input or output can be designated for each bit by means of the port H data direction register (PHDDR). PJ7 to PJ0 I/O Port J: 8-bit I/O pins. Input or output can be designated for each bit by means of the port J data direction register (PJDDR). PK6 to PK7 I/O Port K: 2-bit I/O pins. Input or output can be designated for each bit by means of the port K data direction register (PKDDR). REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 25 of 1126 Section 1 Overview Page 26 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Section 2 CPU 2.1 Overview The H8S/2600 CPU is a high-speed central processing unit with an internal 32-bit architecture that is upward-compatible with the H8/300 and H8/300H CPUs. The H8S/2600 CPU has sixteen 16-bit general registers, can address a 16-Mbyte (architecturally 4-Gbyte) linear address space, and is ideal for realtime control. 2.1.1 Features The H8S/2600 CPU has the following features. * Upward-compatible with H8/300 and H8/300H CPUs Can execute H8/300 and H8/300H object programs * General-register architecture Sixteen 16-bit general registers (also usable as sixteen 8-bit registers or eight 32-bit registers) * Sixty-nine basic instructions 8/16/32-bit arithmetic and logic instructions Multiply and divide instructions Powerful bit-manipulation instructions Multiply-and-accumulate instruction * Eight addressing modes Register direct [Rn] Register indirect [@ERn] Register indirect with displacement [@(d:16,ERn) or @(d:32,ERn)] Register indirect with post-increment or pre-decrement [@ERn+ or @-ERn] Absolute address [@aa:8, @aa:16, @aa:24, or @aa:32] Immediate [#xx:8, #xx:16, or #xx:32] Program-counter relative [@(d:8,PC) or @(d:16,PC)] Memory indirect [@@aa:8] * 16-Mbyte address space Program: 16 Mbytes Data: 16 Mbytes (4 Gbyte architecturally) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 27 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU * High-speed operation All frequently-used instructions execute in one or two states Maximum clock rate: 20 MHz 8/16/32-bit register-register add/subtract: 50 ns 8 x 8-bit register-register multiply: 150 ns 16 / 8-bit register-register divide: 600 ns 16 x 16-bit register-register multiply: 200 ns 32 / 16-bit register-register divide: 1000 ns * Two CPU operating modes Normal mode* Advanced mode Note: * Not available in the H8S/2646 Group. * Power-down state Transition to power-down state by SLEEP instruction CPU clock speed selection 2.1.2 Differences between H8S/2600 CPU and H8S/2000 CPU The differences between the H8S/2600 CPU and the H8S/2000 CPU are as shown below. * Register configuration The MAC register is supported only by the H8S/2600 CPU. * Basic instructions The four instructions MAC, CLRMAC, LDMAC, and STMAC are supported only by the H8S/2600 CPU. * Number of execution states The number of execution states of the MULXU and MULXS instructions is different in each CPU. Execution States Instruction Mnemonic H8S/2600 H8S/2000 MULXU MULXU.B Rs, Rd 3 12 MULXU.W Rs, ERd 4 20 MULXS.B Rs, Rd 4 13 MULXS.W Rs, ERd 5 21 MULXS Page 28 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU In addition, there are differences in address space, CCR and EXR register functions, power-down modes, etc., depending on the model. 2.1.3 Differences from H8/300 CPU In comparison to the H8/300 CPU, the H8S/2600 CPU has the following enhancements. * More general registers and control registers Eight 16-bit expanded registers, and one 8-bit and two 32-bit control registers, have been added. * Expanded address space Normal mode* supports the same 64-kbyte address space as the H8/300 CPU. Advanced mode supports a maximum 16-Mbyte address space. Note: * Not available in the H8S/2646 Group. * Enhanced addressing The addressing modes have been enhanced to make effective use of the 16-Mbyte address space. * Enhanced instructions Addressing modes of bit-manipulation instructions have been enhanced. Signed multiply and divide instructions have been added. A multiply-and-accumulate instruction has been added. Two-bit shift instructions have been added. Instructions for saving and restoring multiple registers have been added. A test and set instruction has been added. * Higher speed Basic instructions execute twice as fast. 2.1.4 Differences from H8/300H CPU In comparison to the H8/300H CPU, the H8S/2600 CPU has the following enhancements. * Additional control register One 8-bit and two 32-bit control registers have been added. * Enhanced instructions Addressing modes of bit-manipulation instructions have been enhanced. A multiply-and-accumulate instruction has been added. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 29 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Two-bit shift instructions have been added. Instructions for saving and restoring multiple registers have been added. A test and set instruction has been added. * Higher speed Basic instructions execute twice as fast. 2.2 CPU Operating Modes The H8S/2600 CPU has two operating modes: normal and advanced. Normal mode* supports a maximum 64-kbyte address space. Advanced mode supports a maximum 16-Mbyte total address space (architecturally a maximum 16-Mbyte program area and a maximum of 4 Gbytes for program and data areas combined). The mode is selected by the mode pins of the microcontroller. Note: * Not available in the H8S/2646 Group. Normal mode* Maximum 64 kbytes, program and data areas combined CPU operating modes Advanced mode Maximum 16 Mbytes for program and data areas combined Note: * Not available in the H8S/2646 Group. Figure 2.1 CPU Operating Modes (1) Normal Mode (Not Available in the H8S/2646 Group) The exception vector table and stack have the same structure as in the H8/300 CPU. Address Space: A maximum address space of 64 kbytes can be accessed. Extended Registers (En): The extended registers (E0 to E7) can be used as 16-bit registers, or as the upper 16-bit segments of 32-bit registers. When En is used as a 16-bit register it can contain any value, even when the corresponding general register (Rn) is used as an address register. If the general register is referenced in the register indirect addressing mode with pre-decrement (@-Rn) Page 30 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU or post-increment (@Rn+) and a carry or borrow occurs, however, the value in the corresponding extended register (En) will be affected. Instruction Set: All instructions and addressing modes can be used. Only the lower 16 bits of effective addresses (EA) are valid. Exception Vector Table and Memory Indirect Branch Addresses: In normal mode the top area starting at H'0000 is allocated to the exception vector table. One branch address is stored per 16 bits (figure 2.2). The exception vector table differs depending on the microcontroller. For details of the exception vector table, see section 4, Exception Handling. H'0000 H'0001 H'0002 H'0003 H'0004 H'0005 H'0006 H'0007 H'0008 H'0009 H'000A H'000B Reset exception vector (Reserved for system use) Exception vector table Exception vector 1 Exception vector 2 Figure 2.2 Exception Vector Table (Normal Mode) The memory indirect addressing mode (@@aa:8) employed in the JMP and JSR instructions uses an 8-bit absolute address included in the instruction code to specify a memory operand that contains a branch address. In normal mode the operand is a 16-bit word operand, providing a 16bit branch address. Branch addresses can be stored in the top area from H'0000 to H'00FF. Note that this area is also used for the exception vector table. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 31 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Stack Structure: When the program counter (PC) is pushed onto the stack in a subroutine call, and the PC, condition-code register (CCR), and extended control register (EXR) are pushed onto the stack in exception handling, they are stored as shown in figure 2.3. When EXR is invalid, it is not pushed onto the stack. For details, see section 4, Exception Handling. SP PC (16 bits) EXR*1 Reserved*1*3 CCR CCR*3 SP *2 (SP ) PC (16 bits) (a) Subroutine Branch (b) Exception Handling Notes: 1. When EXR is not used it is not stored on the stack. 2. SP when EXR is not used. 3. Ignored when returning. Figure 2.3 Stack Structure in Normal Mode (2) Advanced Mode Address Space: Linear access is provided to a 16-Mbyte maximum address space (architecturally a maximum 16-Mbyte program area and a maximum 4-Gbyte data area, with a maximum of 4 Gbytes for program and data areas combined). Extended Registers (En): The extended registers (E0 to E7) can be used as 16-bit registers, or as the upper 16-bit segments of 32-bit registers or address registers. Instruction Set: All instructions and addressing modes can be used. Page 32 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Exception Vector Table and Memory Indirect Branch Addresses: In advanced mode the top area starting at H'00000000 is allocated to the exception vector table in units of 32 bits. In each 32 bits, the upper 8 bits are ignored and a branch address is stored in the lower 24 bits (figure 2.4). For details of the exception vector table, see section 4, Exception Handling. H'00000000 Reserved Reset exception vector H'00000003 Reserved H'00000004 H'00000007 H'00000008 Exception vector table H'0000000B (Reserved for system use) H'0000000C H'00000010 Reserved Exception vector 1 Figure 2.4 Exception Vector Table (Advanced Mode) The memory indirect addressing mode (@@aa:8) employed in the JMP and JSR instructions uses an 8-bit absolute address included in the instruction code to specify a memory operand that contains a branch address. In advanced mode the operand is a 32-bit longword operand, providing a 32-bit branch address. The upper 8 bits of these 32 bits are a reserved area that is regarded as H'00. Branch addresses can be stored in the area from H'00000000 to H'000000FF. Note that the first part of this range is also the exception vector table. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 33 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Stack Structure: In advanced mode, when the program counter (PC) is pushed onto the stack in a subroutine call, and the PC, condition-code register (CCR), and extended control register (EXR) are pushed onto the stack in exception handling, they are stored as shown in figure 2.5. When EXR is invalid, it is not pushed onto the stack. For details, see section 4, Exception Handling. EXR*1 Reserved*1*3 CCR SP Reserved SP PC (24 bits) (a) Subroutine Branch (SP *2 ) PC (24 bits) (b) Exception Handling Notes: 1. When EXR is not used it is not stored on the stack. 2. SP when EXR is not used. 3. Ignored when returning. Figure 2.5 Stack Structure in Advanced Mode Page 34 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 2.3 Section 2 CPU Address Space Figure 2.6 shows a memory map of the H8S/2600 CPU. The H8S/2600 CPU provides linear access to a maximum 64-kbyte address space in normal mode, and a maximum 16-Mbyte (architecturally 4-Gbyte) address space in advanced mode. H'0000 H'00000000 H'FFFF Program area H'00FFFFFF Data area Cannot be used by the H8S/2646 Group H'FFFFFFFF (a) Normal Mode* (b) Advanced Mode Note: * Not available in the H8S/2646 Group. Figure 2.6 Memory Map REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 35 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU 2.4 Register Configuration 2.4.1 Overview The CPU has the internal registers shown in figure 2.7. There are two types of registers: general registers and control registers. General Registers (Rn) and Extended Registers (En) 15 07 07 0 ER0 E0 R0H R0L ER1 E1 R1H R1L ER2 E2 R2H R2L ER3 E3 R3H R3L ER4 E4 R4H R4L ER5 E5 R5H R5L ER6 E6 R6H R6L ER7 (SP) E7 R7H R7L Control Registers (CR) 23 0 PC 7 6 5 4 3 2 1 0 EXR T -- -- -- -- I2 I1 I0 7 6 5 4 3 2 1 0 CCR I UI H U N Z V C 41 63 Sign extension MAC 32 MACH MACL 31 Legend: SP: PC: EXR: T: I2 to I0: CCR: I: UI: 0 Stack pointer Program counter Extended control register Trace bit Interrupt mask bits Condition-code register Interrupt mask bit User bit or interrupt mask bit* H: U: N: Z: V: C: MAC: Half-carry flag User bit Negative flag Zero flag Overflow flag Carry flag Multiply-accumulate register Note: * Cannot be used as an interrupt mask bit in the H8S/2646 Group. Figure 2.7 CPU Registers Page 36 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 2.4.2 Section 2 CPU General Registers The CPU has eight 32-bit general registers. These general registers are all functionally alike and can be used as both address registers and data registers. When a general register is used as a data register, it can be accessed as a 32-bit, 16-bit, or 8-bit register. When the general registers are used as 32-bit registers or address registers, they are designated by the letters ER (ER0 to ER7). The ER registers divide into 16-bit general registers designated by the letters E (E0 to E7) and R (R0 to R7). These registers are functionally equivalent, providing a maximum sixteen 16-bit registers. The E registers (E0 to E7) are also referred to as extended registers. The R registers divide into 8-bit general registers designated by the letters RH (R0H to R7H) and RL (R0L to R7L). These registers are functionally equivalent, providing a maximum sixteen 8-bit registers. Figure 2.8 illustrates the usage of the general registers. The usage of each register can be selected independently. * Address registers * 32-bit registers * 16-bit registers * 8-bit registers E registers (extended registers) (E0 to E7) RH registers (R0H to R7H) ER registers (ER0 to ER7) R registers (R0 to R7) RL registers (R0L to R7L) Figure 2.8 Usage of General Registers REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 37 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU General register ER7 has the function of stack pointer (SP) in addition to its general-register function, and is used implicitly in exception handling and subroutine calls. Figure 2.9 shows the stack. Free area SP (ER7) Stack area Figure 2.9 Stack 2.4.3 Control Registers The control registers are the 24-bit program counter (PC), 8-bit extended control register (EXR), 8-bit condition-code register (CCR), and 64-bit multiply-accumulate register (MAC). (1) Program Counter (PC) This 24-bit counter indicates the address of the next instruction the CPU will execute. The length of all CPU instructions is 2 bytes (one word), so the least significant PC bit is ignored. (When an instruction is fetched, the least significant PC bit is regarded as 0.) (2) Extended Control Register (EXR) This 8-bit register contains the trace bit (T) and three interrupt mask bits (I2 to I0). Bit 7--Trace Bit (T): Selects trace mode. When this bit is cleared to 0, instructions are executed in sequence. When this bit is set to 1, a trace exception is generated each time an instruction is executed. Bits 6 to 3--Reserved: These bits are reserved. They are always read as 1. Page 38 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Bits 2 to 0--Interrupt Mask Bits (I2 to I0): These bits designate the interrupt mask level (0 to 7). For details, refer to section 5, Interrupt Controller. Operations can be performed on the EXR bits by the LDC, STC, ANDC, ORC, and XORC instructions. All interrupts, including NMI, are disabled for three states after one of these instructions is executed, except for STC. (3) Condition-Code Register (CCR) This 8-bit register contains internal CPU status information, including an interrupt mask bit (I) and half-carry (H), negative (N), zero (Z), overflow (V), and carry (C) flags. Bit 7--Interrupt Mask Bit (I): Masks interrupts other than NMI when set to 1. (NMI is accepted regardless of the I bit setting.) The I bit is set to 1 by hardware at the start of an exceptionhandling sequence. For details, refer to section 5, Interrupt Controller. Bit 6--User Bit or Interrupt Mask Bit (UI): Can be written and read by software using the LDC, STC, ANDC, ORC, and XORC instructions. This bit can also be used as an interrupt mask bit. For details, refer to section 5, Interrupt Controller. Bit 5--Half-Carry Flag (H): When the ADD.B, ADDX.B, SUB.B, SUBX.B, CMP.B, or NEG.B instruction is executed, this flag is set to 1 if there is a carry or borrow at bit 3, and cleared to 0 otherwise. When the ADD.W, SUB.W, CMP.W, or NEG.W instruction is executed, the H flag is set to 1 if there is a carry or borrow at bit 11, and cleared to 0 otherwise. When the ADD.L, SUB.L, CMP.L, or NEG.L instruction is executed, the H flag is set to 1 if there is a carry or borrow at bit 27, and cleared to 0 otherwise. Bit 4--User Bit (U): Can be written and read by software using the LDC, STC, ANDC, ORC, and XORC instructions. Bit 3--Negative Flag (N): Stores the value of the most significant bit (sign bit) of data. Bit 2--Zero Flag (Z): Set to 1 to indicate zero data, and cleared to 0 to indicate non-zero data. Bit 1--Overflow Flag (V): Set to 1 when an arithmetic overflow occurs, and cleared to 0 at other times. Bit 0--Carry Flag (C): Set to 1 when a carry occurs, and cleared to 0 otherwise. Used by: * Add instructions, to indicate a carry * Subtract instructions, to indicate a borrow * Shift and rotate instructions, to store the value shifted out of the end bit REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 39 of 1126 Section 2 CPU H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM The carry flag is also used as a bit accumulator by bit manipulation instructions. Some instructions leave some or all of the flag bits unchanged. For the action of each instruction on the flag bits, refer to appendix A.1, Instruction List. Operations can be performed on the CCR bits by the LDC, STC, ANDC, ORC, and XORC instructions. The N, Z, V, and C flags are used as branching conditions for conditional branch (Bcc) instructions. (4) Multiply-Accumulate Register (MAC) This 64-bit register stores the results of multiply-and-accumulate operations. It consists of two 32bit registers denoted MACH and MACL. The lower 10 bits of MACH are valid; the upper bits are a sign extension. 2.4.4 Initial Register Values Reset exception handling loads the CPU's program counter (PC) from the vector table, clears the trace bit in EXR to 0, and sets the interrupt mask bits in CCR and EXR to 1. The other CCR bits and the general registers are not initialized. In particular, the stack pointer (ER7) is not initialized. The stack pointer should therefore be initialized by an MOV.L instruction executed immediately after a reset. Page 40 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 2.5 Section 2 CPU Data Formats The CPU can process 1-bit, 4-bit (BCD), 8-bit (byte), 16-bit (word), and 32-bit (longword) data. Bit-manipulation instructions operate on 1-bit data by accessing bit n (n = 0, 1, 2, ..., 7) of byte operand data. The DAA and DAS decimal-adjust instructions treat byte data as two digits of 4-bit BCD data. 2.5.1 General Register Data Formats Figure 2.10 shows the data formats in general registers. Data Type Register Number Data Format 1-bit data RnH 7 0 7 6 5 4 3 2 1 0 Don't care Don't care 7 0 7 6 5 4 3 2 1 0 1-bit data 4-bit BCD data RnL RnH 4 3 7 Upper 4-bit BCD data 0 Lower Don't care RnL Upper Don't care Byte data RnH 4 3 7 7 0 Lower 0 Don't care MSB Byte data LSB RnL 7 0 Don't care MSB LSB Figure 2.10 General Register Data Formats REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 41 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Data Type Register Number Word data Rn Word data En Data Format 15 0 MSB 15 0 MSB Longword data LSB ERn 31 MSB LSB 16 15 En 0 LSB Rn Legend: ERn: General register ER En: General register E Rn: General register R RnH: General register RH RnL: General register RL MSB: Most significant bit LSB: Least significant bit Figure 2.10 General Register Data Formats (cont) Page 42 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 2.5.2 Section 2 CPU Memory Data Formats Figure 2.11 shows the data formats in memory. The CPU can access word data and longword data in memory, but word or longword data must begin at an even address. If an attempt is made to access word or longword data at an odd address, no address error occurs but the least significant bit of the address is regarded as 0, so the access starts at the preceding address. This also applies to instruction fetches. Data Type Data Format Address 7 1-bit data Address L Byte data Address L MSB Word data 7 0 6 5 4 2 1 0 LSB Address 2M MSB Address 2M + 1 Longword data 3 LSB Address 2N MSB Address 2N + 1 Address 2N + 2 Address 2N + 3 LSB Figure 2.11 Memory Data Formats When ER7 is used as an address register to access the stack, the operand size should be word size or longword size. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 43 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU 2.6 Instruction Set 2.6.1 Overview The H8S/2600 CPU has 69 types of instructions. The instructions are classified by function in table 2.1. Table 2.1 Instruction Classification Function Instructions Size Types Data transfer MOV 1 1 POP* , PUSH* BWL 5 WL LDM, STM 3 3 MOVFPE* , MOVTPE* B ADD, SUB, CMP, NEG BWL ADDX, SUBX, DAA, DAS B INC, DEC BWL ADDS, SUBS L Arithmetic operations L 23 MULXU, DIVXU, MULXS, DIVXS BW EXTU, EXTS 4 TAS* WL B MAC, LDMAC, STMAC, CLRMAC -- AND, OR, XOR, NOT BWL 4 Shift SHAL, SHAR, SHLL, SHLR, ROTL, ROTR, ROTXL, ROTXR BWL 8 Bit manipulation B 14 Branch BSET, BCLR, BNOT, BTST, BLD, BILD, BST, BIST, BAND, BIAND, BOR, BIOR, BXOR, BIXOR 2 Bcc* , JMP, BSR, JSR, RTS -- 5 System control TRAPA, RTE, SLEEP, LDC, STC, ANDC, ORC, XORC, NOP -- 9 Logic operations Block data transfer EEPMOV -- 1 Total: 69 Legend: B: Byte size W: Word size L: Longword size Notes: 1. POP.W Rn and PUSH.W Rn are identical to MOV.W @SP+, Rn and MOV.W Rn, @-SP. POP.L ERn and PUSH.L ERn are identical to MOV.L @SP+, ERn and MOV.L ERn, @-SP. 2. Bcc is the general name for conditional branch instructions. 3. Not available in the H8S/2646 Group. 4. Only register ER0, ER1, ER4, or ER5 should be used when using the TAS instruction. Page 44 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 2.6.2 Section 2 CPU Instructions and Addressing Modes Table 2.2 indicates the combinations of instructions and addressing modes that the H8S/2600 CPU can use. Table 2.2 Combinations of Instructions and Addressing Modes Rn @ERn @(d:16, ERn) @(d:32, ERn) @-ERn/@ERn+ @aa:8 @aa:16 @aa:24 @aa:32 @(d:8, PC) @(d:16, PC) @@aa:8 BWL BWL BWL BWL BWL BWL B BWL -- BWL -- -- -- -- POP, PUSH -- -- -- -- -- -- -- -- -- -- -- -- -- WL LDM, STM 1 1 MOVFPE* , MOVTPE* -- -- -- -- -- -- -- -- -- -- -- -- -- L -- -- -- -- -- -- -- B -- -- -- -- -- -- Function Data transfer Arithmetic operations Instruction MOV ADD, CMP -- #xx Addressing Modes BWL BWL -- -- -- -- -- -- -- -- -- -- -- -- WL BWL -- -- -- -- -- -- -- -- -- -- -- -- ADDX, SUBX B B -- -- -- -- -- -- -- -- -- -- -- -- ADDS, SUBS -- L -- -- -- -- -- -- -- -- -- -- -- -- INC, DEC -- BWL -- -- -- -- -- -- -- -- -- -- -- -- DAA, DAS -- B -- -- -- -- -- -- -- -- -- -- -- -- MULXU, DIVXU -- BW -- -- -- -- -- -- -- -- -- -- -- -- SUB MULXS, DIVXS -- BW -- -- -- -- -- -- -- -- -- -- -- -- NEG -- BWL -- -- -- -- -- -- -- -- -- -- -- -- EXTU, EXTS TAS*2 -- WL -- -- -- -- -- -- -- -- -- -- -- -- -- -- B -- -- -- -- -- -- -- -- -- -- -- -- MAC -- -- -- -- -- -- -- -- -- -- -- -- CLRMAC -- -- -- -- -- -- -- -- -- -- -- -- -- LDMAC, STMAC -- L -- -- -- -- -- -- -- -- -- -- -- BWL BWL -- -- -- -- -- -- -- -- -- -- -- -- -- BWL -- -- -- -- -- -- -- -- -- -- -- -- Shift -- BWL -- -- -- -- -- -- -- -- -- -- -- -- Bit manipulation -- B B -- -- -- B B -- B -- -- -- -- Branch Bcc, BSR -- -- -- -- -- -- -- -- -- -- -- JMP, JSR -- -- -- -- -- -- -- -- -- -- -- RTS -- -- -- -- -- -- -- -- -- -- -- -- -- TRAPA -- -- -- -- -- -- -- -- -- -- -- -- -- RTE -- -- -- -- -- -- -- -- -- -- -- -- -- SLEEP -- -- -- -- -- -- -- -- -- -- -- -- -- Logic operations System control AND, OR, XOR NOT -- -- -- LDC B B W W W W -- W -- W -- -- -- -- STC -- B W W W W -- W -- W -- -- -- -- -- ANDC, ORC, XORC B -- -- -- -- -- -- -- -- -- -- -- -- NOP -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Block data transfer BW Legend: B: Byte W: Word L: Longword Notes: 1. Not available in the H8S/2646 Group. 2. Only register ER0, ER1, ER4, or ER5 should be used when using the TAS instruction. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 45 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU 2.6.3 Table of Instructions Classified by Function Table 2.3 summarizes the instructions in each functional category. The notation used in table 2.3 is defined below. Operation Notation Rs General register (destination)* General register (source)* Rn General register* ERn General register (32-bit register) MAC Multiply-accumulate register (32-bit register) Rd (EAd) Destination operand (EAs) Source operand EXR Extended control register CCR Condition-code register N N (negative) flag in CCR Z Z (zero) flag in CCR V V (overflow) flag in CCR C C (carry) flag in CCR PC Program counter SP Stack pointer #IMM Immediate data disp Displacement + Addition - Subtraction x Multiplication / Division Logical AND Logical OR Logical exclusive OR Move NOT (logical complement) :8/:16/:24/:32 8-, 16-, 24-, or 32-bit length Note: * General registers include 8-bit registers (R0H to R7H, R0L to R7L), 16-bit registers (R0 to R7, E0 to E7), and 32-bit registers (ER0 to ER7). Page 46 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Table 2.3 Section 2 CPU Instructions Classified by Function Type Instruction 1 Size* Data transfer MOV B/W/L (EAs) Rd, Rs (EAd) Moves data between two general registers or between a general register and memory, or moves immediate data to a general register. MOVFPE B Cannot be used in the H8S/2646 Group. MOVTPE B Cannot be used in the H8S/2646 Group. POP W/L @SP+ Rn Pops a register from the stack. POP.W Rn is identical to MOV.W @SP+, Rn. POP.L ERn is identical to MOV.L @SP+, ERn. PUSH W/L Rn @-SP Pushes a register onto the stack. PUSH.W Rn is identical to MOV.W Rn, @-SP. PUSH.L ERn is identical to MOV.L ERn, @-SP. LDM L @SP+ Rn (register list) Pops two or more general registers from the stack. STM L Rn (register list) @-SP Pushes two or more general registers onto the stack. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Function Page 47 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Type Instruction 1 Size* Arithmetic operations ADD SUB B/W/L Rd Rs Rd, Rd #IMM Rd Performs addition or subtraction on data in two general registers, or on immediate data and data in a general register. (Immediate byte data cannot be subtracted from byte data in a general register. Use the SUBX or ADD instruction.) ADDX SUBX B Rd Rs C Rd, Rd #IMM C Rd Performs addition or subtraction with carry or borrow on byte data in two general registers, or on immediate data and data in a general register. INC DEC B/W/L Rd 1 Rd, Rd 2 Rd Increments or decrements a general register by 1 or 2. (Byte operands can be incremented or decremented by 1 only.) ADDS SUBS L Rd 1 Rd, Rd 2 Rd, Rd 4 Rd Adds or subtracts the value 1, 2, or 4 to or from data in a 32-bit register. DAA DAS B Rd decimal adjust Rd Decimal-adjusts an addition or subtraction result in a general register by referring to the CCR to produce 4-bit BCD data. MULXU B/W Rd x Rs Rd Performs unsigned multiplication on data in two general registers: either 8 bits x 8 bits 16 bits or 16 bits x 16 bits 32 bits. MULXS B/W Rd x Rs Rd Performs signed multiplication on data in two general registers: either 8 bits x 8 bits 16 bits or 16 bits x 16 bits 32 bits. DIVXU B/W Rd / Rs Rd Performs unsigned division on data in two general registers: either 16 bits / 8 bits 8-bit quotient and 8-bit remainder or 32 bits / 16 bits 16-bit quotient and 16bit remainder. Page 48 of 1126 Function REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Type Instruction 1 Size* Arithmetic operations DIVXS B/W Rd / Rs Rd Performs signed division on data in two general registers: either 16 bits / 8 bits 8-bit quotient and 8-bit remainder or 32 bits / 16 bits 16-bit quotient and 16bit remainder. CMP B/W/L Rd - Rs, Rd - #IMM Compares data in a general register with data in another general register or with immediate data, and sets CCR bits according to the result. NEG B/W/L 0 - Rd Rd Takes the two's complement (arithmetic complement) of data in a general register. EXTU W/L Rd (zero extension) Rd Extends the lower 8 bits of a 16-bit register to word size, or the lower 16 bits of a 32-bit register to longword size, by padding with zeros on the left. EXTS W/L TAS B Rd (sign extension) Rd Extends the lower 8 bits of a 16-bit register to word size, or the lower 16 bits of a 32-bit register to longword size, by extending the sign bit. 2 @ERd - 0, 1 (<bit 7> of @ERd)* Tests memory contents, and sets the most significant bit (bit 7) to 1. MAC -- (EAs) x (EAd) + MAC MAC Performs signed multiplication on memory contents and adds the result to the multiply-accumulate register. The following operations can be performed: 16 bits x 16 bits + 32 bits 32 bits, saturating 16 bits x 16 bits + 42 bits 42 bits, non-saturating CLRMAC -- 0 MAC Clears the multiply-accumulate register to zero. LDMAC STMAC L Rs MAC, MAC Rd Transfers data between a general register and a multiply-accumulate register. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Function Page 49 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Type Instruction 1 Size* Logic operations AND B/W/L Rd Rs Rd, Rd #IMM Rd Performs a logical AND operation on a general register and another general register or immediate data. OR B/W/L Rd Rs Rd, Rd #IMM Rd Performs a logical OR operation on a general register and another general register or immediate data. XOR B/W/L Rd Rs Rd, Rd #IMM Rd Performs a logical exclusive OR operation on a general register and another general register or immediate data. NOT B/W/L (Rd) (Rd) Takes the one's complement of general register contents. SHAL SHAR B/W/L Rd (shift) Rd Performs an arithmetic shift on general register contents. 1-bit or 2-bit shift is possible. SHLL SHLR B/W/L Rd (shift) Rd Performs a logical shift on general register contents. 1-bit or 2-bit shift is possible. ROTL ROTR B/W/L Rd (rotate) Rd Rotates general register contents. 1-bit or 2-bit rotation is possible. ROTXL ROTXR B/W/L Rd (rotate) Rd Rotates general register contents through the carry flag. 1-bit or 2-bit rotation is possible. Shift operations Page 50 of 1126 Function REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Type Instruction 1 Size* Bitmanipulation instructions BSET B 1 (<bit-No.> of <EAd>) Sets a specified bit in a general register or memory operand to 1. The bit number is specified by 3-bit immediate data or the lower three bits of a general register. BCLR B 0 (<bit-No.> of <EAd>) Clears a specified bit in a general register or memory operand to 0. The bit number is specified by 3-bit immediate data or the lower three bits of a general register. BNOT B (<bit-No.> of <EAd>) (<bit-No.> of <EAd>) Inverts a specified bit in a general register or memory operand. The bit number is specified by 3-bit immediate data or the lower three bits of a general register. BTST B (<bit-No.> of <EAd>) Z Tests a specified bit in a general register or memory operand and sets or clears the Z flag accordingly. The bit number is specified by 3-bit immediate data or the lower three bits of a general register. BAND B C (<bit-No.> of <EAd>) C ANDs the carry flag with a specified bit in a general register or memory operand and stores the result in the carry flag. BIAND B C [ (<bit-No.> of <EAd>) ] C ANDs the carry flag with the inverse of a specified bit in a general register or memory operand and stores the result in the carry flag. Function The bit number is specified by 3-bit immediate data. BOR B C (<bit-No.> of <EAd>) C ORs the carry flag with a specified bit in a general register or memory operand and stores the result in the carry flag. BIOR B C [ (<bit-No.> of <EAd>)] C ORs the carry flag with the inverse of a specified bit in a general register or memory operand and stores the result in the carry flag. The bit number is specified by 3-bit immediate data. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 51 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Type Instruction 1 Size* Bitmanipulation instructions BXOR B C (<bit-No.> of <EAd>) C Exclusive-ORs the carry flag with a specified bit in a general register or memory operand and stores the result in the carry flag. BIXOR B C [ (<bit-No.> of <EAd>) ] C Exclusive-ORs the carry flag with the inverse of a specified bit in a general register or memory operand and stores the result in the carry flag. Function The bit number is specified by 3-bit immediate data. BLD B (<bit-No.> of <EAd>) C Transfers a specified bit in a general register or memory operand to the carry flag. BILD B (<bit-No.> of <EAd>) C Transfers the inverse of a specified bit in a general register or memory operand to the carry flag. BST B C (<bit-No.> of <EAd>) Transfers the carry flag value to a specified bit in a general register or memory operand. BIST B C (<bit-No.> of <EAd>) Transfers the inverse of the carry flag value to a specified bit in a general register or memory operand. The bit number is specified by 3-bit immediate data. The bit number is specified by 3-bit immediate data. Page 52 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Type Instruction 1 Size* Function Branch instructions Bcc -- Branches to a specified address if a specified condition is true. The branching conditions are listed below. Description Condition BRA(BT) Always (true) Always BRN(BF) Never (false) Never BHI High CZ=0 BLS Low or same CZ=1 BCC(BHS) Carry clear (high or same) C=0 BCS(BLO) Carry set (low) C=1 BNE Not equal Z=0 BEQ Equal Z=1 BVC Overflow clear V=0 BVS Overflow set V=1 BPL Plus N=0 BMI Minus N=1 BGE Greater or equal NV=0 BLT Less than NV=1 BGT Greater than Z(N V) = 0 BLE Less or equal Z(N V) = 1 JMP -- Branches unconditionally to a specified address. BSR -- Branches to a subroutine at a specified address. JSR -- Branches to a subroutine at a specified address. RTS -- Returns from a subroutine REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Mnemonic Page 53 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Type Instruction 1 Size* Function System control TRAPA instructions RTE -- Starts trap-instruction exception handling. -- Returns from an exception-handling routine. SLEEP -- Causes a transition to a power-down state. LDC B/W (EAs) CCR, (EAs) EXR Moves the source operand contents or immediate data to CCR or EXR. Although CCR and EXR are 8-bit registers, word-size transfers are performed between them and memory. The upper 8 bits are valid. STC B/W CCR (EAd), EXR (EAd) Transfers CCR or EXR contents to a general register or memory. Although CCR and EXR are 8-bit registers, word-size transfers are performed between them and memory. The upper 8 bits are valid. ANDC B CCR #IMM CCR, EXR #IMM EXR Logically ANDs the CCR or EXR contents with immediate data. ORC B CCR #IMM CCR, EXR #IMM EXR Logically ORs the CCR or EXR contents with immediate data. XORC B CCR #IMM CCR, EXR #IMM EXR Logically exclusive-ORs the CCR or EXR contents with immediate data. NOP -- PC + 2 PC Only increments the program counter. Page 54 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Type Instruction 1 Size* Block data transfer instruction EEPMOV.B -- if R4L 0 then Repeat @ER5+ @ER6+ R4L-1 R4L Until R4L = 0 else next; EEPMOV.W -- if R4 0 then Repeat @ER5+ @ER6+ R4-1 R4 Until R4 = 0 else next; Function Transfers a data block according to parameters set in general registers R4L or R4, ER5, and ER6. R4L or R4: size of block (bytes) ER5: starting source address ER6: starting destination address Execution of the next instruction begins as soon as the transfer is completed. Notes: 1. Size refers to the operand size. B: Byte W: Word L: Longword 2. Only register ER0, ER1, ER4, or ER5 should be used when using the TAS instruction. 2.6.4 Basic Instruction Formats The CPU instructions consist of 2-byte (1-word) units. An instruction consists of an operation field (op field), a register field (r field), an effective address extension (EA field), and a condition field (cc). (1) Operation Field: Indicates the function of the instruction, the addressing mode, and the operation to be carried out on the operand. The operation field always includes the first four bits of the instruction. Some instructions have two operation fields. (2) Register Field: Specifies a general register. Address registers are specified by 3 bits, data registers by 3 bits or 4 bits. Some instructions have two register fields. Some have no register field. (3) Effective Address Extension: Eight, 16, or 32 bits specifying immediate data, an absolute address, or a displacement. (4) Condition Field: Specifies the branching condition of Bcc instructions. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 55 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Figure 2.12 shows examples of instruction formats. (1) Operation field only op NOP, RTS, etc. (2) Operation field and register fields op rm rn ADD.B Rn, Rm, etc. (3) Operation field, register fields, and effective address extension op rn rm MOV.B @(d:16, Rn), Rm, etc. EA (disp) (4) Operation field, effective address extension, and condition field op cc EA (disp) BRA d:16, etc Figure 2.12 Instruction Formats (Examples) Page 56 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU 2.7 Addressing Modes and Effective Address Calculation 2.7.1 Addressing Mode The CPU supports the eight addressing modes listed in table 2.4. Each instruction uses a subset of these addressing modes. Arithmetic and logic instructions can use the register direct and immediate modes. Data transfer instructions can use all addressing modes except program-counter relative and memory indirect. Bit manipulation instructions use register direct, register indirect, or absolute addressing mode to specify an operand, and register direct (BSET, BCLR, BNOT, and BTST instructions) or immediate (3-bit) addressing mode to specify a bit number in the operand. Table 2.4 Addressing Modes No. Addressing Mode Symbol 1 Register direct Rn 2 Register indirect @ERn 3 Register indirect with displacement @(d:16,ERn)/@(d:32,ERn) 4 Register indirect with post-increment Register indirect with pre-decrement @ERn+ @-ERn 5 Absolute address @aa:8/@aa:16/@aa:24/@aa:32 6 Immediate #xx:8/#xx:16/#xx:32 7 Program-counter relative @(d:8,PC)/@(d:16,PC) 8 Memory indirect @@aa:8 (1) Register Direct--Rn: The register field of the instruction specifies an 8-, 16-, or 32-bit general register containing the operand. R0H to R7H and R0L to R7L can be specified as 8-bit registers. R0 to R7 and E0 to E7 can be specified as 16-bit registers. ER0 to ER7 can be specified as 32-bit registers. (2) Register Indirect--@ERn: The register field of the instruction code specifies an address register (ERn) which contains the address of the operand on memory. If the address is a program instruction address, the lower 24 bits are valid and the upper 8 bits are all assumed to be 0 (H'00). (3) Register Indirect with Displacement--@(d:16, ERn) or @(d:32, ERn): A 16-bit or 32-bit displacement contained in the instruction is added to an address register (ERn) specified by the register field of the instruction, and the sum gives the address of a memory operand. A 16-bit displacement is sign-extended when added. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 57 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU (4) Register Indirect with Post-Increment or Pre-Decrement--@ERn+ or @-ERn: * Register indirect with post-increment--@ERn+ The register field of the instruction code specifies an address register (ERn) which contains the address of a memory operand. After the operand is accessed, 1, 2, or 4 is added to the address register contents and the sum is stored in the address register. The value added is 1 for byte access, 2 for word transfer instruction, or 4 for longword transfer instruction. For word or longword transfer instruction, the register value should be even. * Register indirect with pre-decrement--@-ERn The value 1, 2, or 4 is subtracted from an address register (ERn) specified by the register field in the instruction code, and the result becomes the address of a memory operand. The result is also stored in the address register. The value subtracted is 1 for byte access, 2 for word transfer instruction, or 4 for longword transfer instruction. For word or longword transfer instruction, the register value should be even. (5) Absolute Address--@aa:8, @aa:16, @aa:24, or @aa:32: The instruction code contains the absolute address of a memory operand. The absolute address may be 8 bits long (@aa:8), 16 bits long (@aa:16), 24 bits long (@aa:24), or 32 bits long (@aa:32). To access data, the absolute address should be 8 bits (@aa:8), 16 bits (@aa:16), or 32 bits (@aa:32) long. For an 8-bit absolute address, the upper 24 bits are all assumed to be 1 (H'FFFF). For a 16-bit absolute address the upper 16 bits are a sign extension. A 32-bit absolute address can access the entire address space. A 24-bit absolute address (@aa:24) indicates the address of a program instruction. The upper 8 bits are all assumed to be 0 (H'00). Table 2.5 indicates the accessible absolute address ranges. Table 2.5 Absolute Address Access Ranges Normal Mode* Advanced Mode 8 bits (@aa:8) H'FF00 to H'FFFF H'FFFF00 to H'FFFFFF 16 bits (@aa:16) H'0000 to H'FFFF H'000000 to H'007FFF, H'FF8000 to H'FFFFFF Absolute Address Data address 32 bits (@aa:32) Program instruction address H'000000 to H'FFFFFF 24 bits (@aa:24) Note: * Not available in the H8S/2646 Group. Page 58 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU (6) Immediate--#xx:8, #xx:16, or #xx:32: The instruction contains 8-bit (#xx:8), 16-bit (#xx:16), or 32-bit (#xx:32) immediate data as an operand. The ADDS, SUBS, INC, and DEC instructions contain immediate data implicitly. Some bit manipulation instructions contain 3-bit immediate data in the instruction code, specifying a bit number. The TRAPA instruction contains 2-bit immediate data in its instruction code, specifying a vector address. (7) Program-Counter Relative--@(d:8, PC) or @(d:16, PC): This mode is used in the Bcc and BSR instructions. An 8-bit or 16-bit displacement contained in the instruction is sign-extended and added to the 24-bit PC contents to generate a branch address. Only the lower 24 bits of this branch address are valid; the upper 8 bits are all assumed to be 0 (H'00). The PC value to which the displacement is added is the address of the first byte of the next instruction, so the possible branching range is -126 to +128 bytes (-63 to +64 words) or -32766 to +32768 bytes (-16383 to +16384 words) from the branch instruction. The resulting value should be an even number. (8) Memory Indirect--@@aa:8: This mode can be used by the JMP and JSR instructions. The instruction code contains an 8-bit absolute address specifying a memory operand. This memory operand contains a branch address. The upper bits of the absolute address are all assumed to be 0, so the address range is 0 to 255 (H'0000 to H'00FF in normal mode*, H'000000 to H'0000FF in advanced mode). In normal mode* the memory operand is a word operand and the branch address is 16 bits long. In advanced mode the memory operand is a longword operand, the first byte of which is assumed to be all 0 (H'00). Note that the first part of the address range is also the exception vector area. For further details, refer to section 4, Exception Handling. Note: * Not available in the H8S/2646 Group. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 59 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Specified by @aa:8 Branch address Specified by @aa:8 Reserved Branch address (a) Normal Mode* (b) Advanced Mode Note: * Not available in the H8S/2646 Group. Figure 2.13 Branch Address Specification in Memory Indirect Mode If an odd address is specified in word or longword memory access, or as a branch address, the least significant bit is regarded as 0, causing data to be accessed or instruction code to be fetched at the address preceding the specified address. (For further information, see section 2.5.2, Memory Data Formats.) 2.7.2 Effective Address Calculation Table 2.6 indicates how effective addresses are calculated in each addressing mode. In normal mode* the upper 8 bits of the effective address are ignored in order to generate a 16-bit address. Note: * Not available in the H8S/2646 Group. Page 60 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 4 3 rm rn r r disp r op r * Register indirect with pre-decrement @-ERn op Register indirect with post-increment or pre-decrement * Register indirect with post-increment @ERn+ op Register indirect with displacement @(d:16, ERn) or @(d:32, ERn) op Register indirect (@ERn) op Register direct (Rn) Addressing Mode and Instruction Format disp 1 2 4 0 1, 2, or 4 General register contents Byte Word Longword 0 0 0 0 1, 2, or 4 General register contents Sign extension General register contents General register contents Operand Size Value added 31 31 31 31 31 Effective Address Calculation 24 23 24 23 24 23 24 23 Don't care 31 Don't care 31 Don't care 31 Don't care 31 Operand is general register contents. Effective Address (EA) 0 0 0 0 Table 2.6 2 1 No. H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Effective Address Calculation Page 61 of 1126 Page 62 of 1126 6 op op abs abs abs op IMM Immediate #xx:8/#xx:16/#xx:32 @aa:32 op @aa:24 @aa:16 op abs Absolute address 5 @aa:8 Addressing Mode and Instruction Format No. Effective Address Calculation 24 23 24 23 24 23 24 23 87 16 15 Sign extension H'FFFF Operand is immediate data. Don't care 31 Don't care 31 Don't care 31 Don't care 31 Effective Address (EA) 0 0 0 0 Section 2 CPU H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 abs op abs * Advanced mode op * Normal mode* Memory indirect @@aa:8 op @(d:8, PC)/@(d:16, PC) Program-counter relative disp Addressing Mode and Instruction Format Note: * Not available in the H8S/2646 Group. 8 7 No. 31 31 31 87 abs 87 abs Memory contents 15 Memory contents H'000000 H'000000 disp PC contents Sign extension 23 23 Effective Address Calculation 0 0 0 0 0 0 24 23 24 23 24 23 Don't care 31 Don't care 31 Don't care 31 H'00 16 15 Effective Address (EA) 0 0 0 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Page 63 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU 2.8 Processing States 2.8.1 Overview The CPU has five main processing states: the reset state, exception handling state, program execution state, bus-released state, and power-down state. Figure 2.14 shows a diagram of the processing states. Figure 2.15 indicates the state transitions. Reset state The CPU and all on-chip supporting modules have been initialized and are stopped. Exception-handling state A transient state in which the CPU changes the normal processing flow in response to a reset, trace, interrupt, or trap instruction. Processing states Program execution state The CPU executes program instructions in sequence. Bus-released state The external bus has been released in response to a bus request signal from a bus master other than the CPU. Sleep mode Power-down state CPU operation is stopped to conserve power.* Software standby mode Hardware standby mode Note: * The power-down state also includes a medium-speed mode, module stop mode, subactive mode, subsleep mode, and watch mode. Figure 2.14 Processing States Page 64 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU End of bus request Bus request Program execution state SLEEP instruction with SSBY = 0 tio n ha nd lin g s bu t of est es d u qu En req re s Bu Sleep mode En d o ha f ex nd ce lin pti g on Re qu es tf or e xc ep Bus-released state Exception handling state eq pt r rru Inte t ues SLEEP instruction with SSBY = 1 External interrupt request Software standby mode RES= High STBY= High, RES= Low Reset state*1 Hardware standby mode*2 Power-down state*3 Notes: 1. From any state except hardware standby mode, a transition to the reset state occurs whenever RES goes low. A transition can also be made to the reset state when the watchdog timer overflows. 2. From any state, a transition to hardware standby mode occurs when STBY goes low. 3. Apart from these states, there are also the watch mode, subactive mode, and the subsleep mode. See section 22, Power-Down Modes. Figure 2.15 State Transitions 2.8.2 Reset State When the RES goes low, all current processing stops and the CPU enters the reset state. In reset state all interrupts are disenabled. Reset exception handling starts when the RES signal changes from low to high. The reset state can also be entered by a watchdog timer overflow. For details, refer to section 12, Watchdog Timer. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 65 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU 2.8.3 Exception-Handling State The exception-handling state is a transient state that occurs when the CPU alters the normal processing flow due to a reset, trace, interrupt, or trap instruction. The CPU fetches a start address (vector) from the exception vector table and branches to that address. (1) Types of Exception Handling and Their Priority Exception handling is performed for traces, resets, interrupts, and trap instructions. Table 2.7 indicates the types of exception handling and their priority. Trap instruction exception handling is always accepted, in the program execution state. Exception handling and the stack structure depend on the interrupt control mode set in SYSCR. Table 2.7 Exception Handling Types and Priority Priority Type of Exception Detection Timing Start of Exception Handling High Reset Synchronized with clock Exception handling starts immediately after a low-to-high transition at the RES pin, or when the watchdog timer overflows. Trace End of instruction execution or end of exception-handling 1 sequence* When the trace (T) bit is set to 1, the trace starts at the end of the current instruction or current exception-handling sequence Interrupt End of instruction execution or end of exception-handling 2 sequence* When an interrupt is requested, exception handling starts at the end of the current instruction or current exception-handling sequence Trap instruction When TRAPA instruction Exception handling starts when a is executed trap (TRAPA) instruction is 3 executed* Low Notes: 1. Traces are enabled only in interrupt control mode 2. Trace exception-handling is not executed at the end of the RTE instruction. 2. Interrupts are not detected at the end of the ANDC, ORC, XORC, and LDC instructions, or immediately after reset exception handling. 3. Trap instruction exception handling is always accepted, in the program execution state. Page 66 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU (2) Reset Exception Handling After the RES pin has gone low and the reset state has been entered, when RES goes high again, reset exception handling starts. The CPU enters the reset state when the RES is low. When reset exception handling starts the CPU fetches a start address (vector) from the exception vector table and starts program execution from that address. All interrupts, including NMI, are disabled during reset exception handling and after it ends. (3) Traces Traces are enabled only in interrupt control mode 2. Trace mode is entered when the T bit of EXR is set to 1. When trace mode is established, trace exception handling starts at the end of each instruction. At the end of a trace exception-handling sequence, the T bit of EXR is cleared to 0 and trace mode is cleared. Interrupt masks are not affected. The T bit saved on the stack retains its value of 1, and when the RTE instruction is executed to return from the trace exception-handling routine, trace mode is entered again. Trace exceptionhandling is not executed at the end of the RTE instruction. Trace mode is not entered in interrupt control mode 0, regardless of the state of the T bit. (4) Interrupt Exception Handling and Trap Instruction Exception Handling When interrupt or trap-instruction exception handling begins, the CPU references the stack pointer (ER7) and pushes the program counter and other control registers onto the stack. Next, the CPU alters the settings of the interrupt mask bits in the control registers. Then the CPU fetches a start address (vector) from the exception vector table and program execution starts from that start address. Figure 2.16 shows the stack after exception handling ends. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 67 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Normal mode*2 SP SP EXR Reserved*1 CCR CCR*1 CCR CCR*1 PC (16 bits) PC (16 bits) (a) Interrupt control mode 0 (b) Interrupt control mode 2 Advanced mode SP SP EXR Reserved*1 CCR CCR PC (24 bits) PC (24 bits) (c) Interrupt control mode 0 (d) Interrupt control mode 2 Notes: 1. Ignored when returning. 2. Not available in the H8S/2646 Group. Figure 2.16 Stack Structure after Exception Handling (Examples) Page 68 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 2.8.4 Section 2 CPU Program Execution State In this state the CPU executes program instructions in sequence. 2.8.5 Bus-Released State This is a state in which the bus has been released in response to a bus request from a bus master other than the CPU. While the bus is released, the CPU halts operations. Bus masters other than the CPU is data transfer controller (DTC). For further details, refer to section 7, Bus Controller. 2.8.6 Power-Down State The power-down state includes both modes in which the CPU stops operating and modes in which the CPU does not stop. There are five modes in which the CPU stops operating: sleep mode, software standby mode, hardware standby mode, subsleep mode, and watch mode. There are also three other power-down modes: medium-speed mode, module stop mode, and subactive mode. In medium-speed mode the CPU and other bus masters operate on a medium-speed clock. Module stop mode permits halting of the operation of individual modules, other than the CPU. Subactive mode, subsleep mode, and watch mode are power-down states using subclock input. For details, refer to section 22, Power-Down Modes. (1) Sleep Mode: A transition to sleep mode is made if the SLEEP instruction is executed while the software standby bit (SSBY) in the standby control register (SBYCR) is cleared to 0. In sleep mode, CPU operations stop immediately after execution of the SLEEP instruction. The contents of CPU registers are retained. (2) Software Standby Mode: A transition to software standby mode is made if the SLEEP instruction is executed while the SSBY bit in SBYCR is set to 1, the LSON bit in LPWRCR is set to 0, and the PSS bit in TCSR (WDT1) is set to 0. In software standby mode, the CPU and clock halt and all MCU operations stop. As long as a specified voltage is supplied, the contents of CPU registers and on-chip RAM are retained. The I/O ports also remain in their existing states. (3) Hardware Standby Mode: A transition to hardware standby mode is made when the STBY pin goes low. In hardware standby mode, the CPU and clock halt and all MCU operations stop. The on-chip supporting modules are reset, but as long as a specified voltage is supplied, on-chip RAM contents are retained. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 69 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU 2.9 Basic Timing 2.9.1 Overview The H8S/2600 CPU is driven by a system clock, denoted by the symbol . The period from one rising edge of to the next is referred to as a "state." The memory cycle or bus cycle consists of one, two, or three states. Different methods are used to access on-chip memory, on-chip supporting modules, and the external address space. 2.9.2 On-Chip Memory (ROM, RAM) On-chip memory is accessed in one state. The data bus is 16 bits wide, permitting both byte and word transfer instruction. Figure 2.17 shows the on-chip memory access cycle. Figure 2.18 shows the pin states. Bus cycle T1 Internal address bus Read access Address Internal read signal Internal data bus Read data Internal write signal Write access Internal data bus Write data Figure 2.17 On-Chip Memory Access Cycle Page 70 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Bus cycle T1 Address bus Held AS High RD High HWR, LWR High Data bus High-impedance state Figure 2.18 Pin States during On-Chip Memory Access REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 71 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU 2.9.3 On-Chip Supporting Module Access Timing The on-chip supporting modules are accessed in two states. The data bus is either 8 bits or 16 bits wide, depending on the particular internal I/O register being accessed. Figure 2.19 shows the access cycle for the on-chip supporting modules. Figure 2.20 shows the pin states. Bus cycle T1 T2 Internal address bus Address Internal read signal Read access Internal data bus Read data Internal write signal Write access Internal data bus Write data Figure 2.19 On-Chip Supporting Module Access Cycle Page 72 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Bus cycle T1 T2 Address bus Held AS High RD High HWR, LWR High Data bus High-impedance state Figure 2.20 Pin States during On-Chip Supporting Module Access REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 73 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU 2.9.4 On-Chip HCAN Module Access Timing On-chip HCAN module access is performed in four states. The data bus width is 16 bits. Wait states can be inserted by means of a wait request from the HCAN. On-chip HCAN module access cycle is shown in figures 2.21 and 2.22, and the pin states in figure 2.23. Bus cycle T1 T2 T3 T4 Internal address bus Address HCAN read signal Read Internal data bus Read data HCAN write signal Write Internal data bus Write data Figure 2.21 On-Chip HCAN Module Access Cycle (No Wait State) Page 74 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 2 CPU Bus cycle T2 T1 T3 Tw Tw T4 Internal address bus Address HCAN read signal Read Internal data bus Read data HCAN write signal Write Internal data bus Write data Figure 2.22 On-Chip HCAN Module Access Cycle (Wait States Inserted) Bus cycle T1 T2 T3 T4 Address bus Held AS High RD High HWR, LWR High Data bus High-impedance state Figure 2.23 Pin States in On-Chip HCAN Module Access REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 75 of 1126 Section 2 CPU 2.9.5 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM External Address Space Access Timing The external address space is accessed with an 8-bit or 16-bit data bus width in a two-state or three-state bus cycle. In three-state access, wait states can be inserted. For further details, refer to section 7, Bus Controller. 2.10 Usage Note 2.10.1 TAS Instruction Only register ER0, ER1, ER4, or ER5 should be used when using the TAS instruction. The TAS instruction is not generated by the Renesas Electronics H8S and H8/300 series C/C++ compilers. If the TAS instruction is used as a user-defined intrinsic function, ensure that only register ER0, ER1, ER4, or ER5 is used. 2.10.2 Caution to Observe when Using Bit Manipulation Instructions The BSET, BCLR, BNOT, BST and BIST instructions read data in a unit of byte, then, after bit manipulation, they write data in a unit of byte. Therefore, caution must be exercised when executing any of these instructions for registers and ports that include write-only bits. The BCLR instruction can be used to clear the flag of an internal I/O register to 0. In that case, if it is clearly known that the pertinent flag is set to 1 in an interrupt processing routine or other processing, there is no need to read the flag in advance. Page 76 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 3 MCU Operating Modes Section 3 MCU Operating Modes 3.1 Overview 3.1.1 Operating Mode Selection The H8S/2646 Group has four operating modes (modes 4 to 7). These modes enable selection of the CPU operating mode, enabling/disabling of on-chip ROM, and the initial bus width setting, by setting the mode pins (MD2 to MD0). Table 3.1 lists the MCU operating modes. Table 3.1 MCU Operating Mode Selection CPU MCU Operating Operating Description MD2 MD1 MD0 Mode Mode 0* 1* 0 2* 0 1 3* 4 -- 1 -- -- On-Chip Initial ROM Width Max. Width -- -- -- 0 1 1 0 5 6 0 External Data Bus 0 1 1 7 Advanced On-chip ROM disabled, Disabled 16 bits expanded mode 8 bits 0 On-chip ROM enabled, expanded mode 1 Single-chip mode Enabled 8 bits -- 16 bits 16 bits 16 bits -- Note: * Not available in the H8S/2646 Group. The CPU's architecture allows for 4 Gbytes of address space, but the H8S/2646 Group actually accesses a maximum of 16 Mbytes. Modes 4 to 6 are externally expanded modes that allow access to external memory and peripheral devices. The external expansion modes allow switching between 8-bit and 16-bit bus modes. After program execution starts, an 8-bit or 16-bit address space can be set for each area, depending on the bus controller setting. If 16-bit access is selected for any one area, 16-bit bus mode is set; if 8-bit access is selected for all areas, 8-bit bus mode is set. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 77 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 3 MCU Operating Modes Note that the functions of each pin depend on the operating mode. The H8S/2646 Group can be used only in modes 4 to 7. This means that the mode pins must be set to select one of these modes. Do not change the inputs at the mode pins during operation. 3.1.2 Register Configuration The H8S/2646 Group has a mode control register (MDCR) that indicates the inputs at the mode pins (MD2 to MD0), and a system control register (SYSCR) that controls the operation of the H8S/2646 Group. Table 3.2 summarizes these registers. Table 3.2 MCU Registers Name Abbreviation R/W Initial Value Address* Mode control register MDCR R Undetermined H'FDE7 System control register SYSCR R/W H'01 H'FDE5 Pin function control register PFCR R/W H'0D/H'00 H'FDEB Note: * Lower 16 bits of the address. 3.2 Register Descriptions 3.2.1 Mode Control Register (MDCR) Bit : 7 6 5 4 3 2 1 0 -- -- -- -- -- MDS2 MDS1 MDS0 Initial value : 1 0 0 0 0 --* --* --* R/W -- -- -- -- -- R R R : Note: * Determined by pins MD2 to MD0. MDCR is an 8-bit read-only register that indicates the current operating mode of the H8S/2646 Group. Bit 7--Reserved: Cannot be written to. Bits 6 to 3--Reserved: These bits are always read as 0 and cannot be written to. Bits 2 to 0--Mode Select 2 to 0 (MDS2 to MDS0): These bits indicate the input levels at pins MD2 to MD0 (the current operating mode). Bits MDS2 to MDS0 correspond to MD2 to MD0. MDS2 to MDS0 are read-only bits, and they cannot be written to. The mode pin (MD2 to MD0) input levels are latched into these bits when MDCR is read. These latches are cancelled by a reset. Page 78 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 3.2.2 Section 3 MCU Operating Modes System Control Register (SYSCR) Bit 7 6 5 4 3 2 1 0 MACS -- INTM1 INTM0 NMIEG -- -- RAME : Initial value : R/W : 0 0 0 0 0 0 0 1 R/W -- R/W R/W R/W R/W -- R/W SYSCR is an 8-bit readable-writable register that selects saturating or non-saturating calculation for the MAC instruction, selects the interrupt control mode, selects the detected edge for NMI, and enables or disenables on-chip RAM. SYSCR is initialized to H'01 by a reset and in hardware standby mode. SYSCR is not initialized in software standby mode. Bit 7--MAC Saturation (MACS): Selects either saturating or non-saturating calculation for the MAC instruction. Bit 7 MACS Description 0 Non-saturating calculation for MAC instruction 1 Saturating calculation for MAC instruction (Initial value) Bit 6--Reserved: This bit is always read as 0 and cannot be modified. Bits 5 and 4--Interrupt Control Mode 1 and 0 (INTM1, INTM0): These bits select the control mode of the interrupt controller. For details of the interrupt control modes, see section 5.4.1, Interrupt Control Modes and Interrupt Operation. Bit 5 INTM1 Bit 4 INTM0 Interrupt Control Mode Description 0 0 0 Control of interrupts by I bit 1 -- Setting prohibited 0 2 Control of interrupts by I2 to I0 bits and IPR 1 -- Setting prohibited 1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 79 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 3 MCU Operating Modes Bit 3--NMI Edge Select (NMIEG): Selects the valid edge of the NMI interrupt input. Bit 3 NMIEG Description 0 An interrupt is requested at the falling edge of NMI input 1 An interrupt is requested at the rising edge of NMI input (Initial value) Bit 2-- Reserved: Only 0 should be written to this bit. Bit 1--Reserved: This bit is always read as 0 and cannot be modified. Bit 0--RAM Enable (RAME): Enables or disables the on-chip RAM. The RAME bit is initialized when the reset status is released. It is not initialized in software standby mode. Bit 0 RAME Description 0 On-chip RAM is disabled 1 On-chip RAM is enabled (Initial value) Note: When the DTC is used, the RAME bit must not be cleared to 0. 3.2.3 Pin Function Control Register (PFCR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 -- -- -- -- AE3 AE2 AE1 AE0 0 0 0 0 1/0 1/0 0 1/0 R/W R/W R/W R/W R/W R/W R/W R/W PFCR is an 8-bit readable-writeable register that performs address output control in extension modes involving ROM. PFCR is initialized to H'0D/H'00 by a reset and in the hardware standby mode. Bits 7 to 4-- Reserved: Only 0 should be written to these bits. Bits 3 to 0--Address Output Enable 3 to 0 (AE3-AE0): These bits select enabling or disabling of address outputs A8 to A23 in ROMless expanded mode and modes with ROM. When a pin is enabled for address output, the address is output regardless of the corresponding DDR setting. When a pin is disabled for address output, it becomes an output port when the corresponding DDR bit is set to 1. Page 80 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 3 MCU Operating Modes Bit 3 AE3 Bit 2 AE2 Bit 1 AE1 Bit 0 AE0 Description 0 0 0 0 A8-A23 address output disabled 1 A8 address output enabled; A9-A23 address output disabled 0 A8, A9 address output enabled; A10-A23 address output disabled 1 A8-A10 address output enabled; A11-A23 address output disabled 0 A8-A11 address output enabled; A12-A23 address output disabled 1 A8-A12 address output enabled; A13-A23 address output disabled 0 A8-A13 address output enabled; A14-A23 address output disabled 1 A8-A14 address output enabled; A15-A23 address output disabled 0 A8-A15 address output enabled; A16-A23 address output disabled 1 A8-A16 address output enabled; A17-A23 address output disabled 0 A8-A17 address output enabled; A18-A23 address output disabled 1 A8-A18 address output enabled; A19-A23 address output disabled 0 A8-A19 address output enabled; A20-A23 address output disabled 1 A8-A20 address output enabled; A21-A23 address output disabled (Initial value*) 0 A8-A21 address output enabled; A22, A23 address output disabled 1 A8-A23 address output enabled 1 1 0 1 1 0 0 1 1 0 1 (Initial value*) Note: * In expanded mode with ROM, bits AE3 to AE0 are initialized to B'0000. In ROMless expanded mode, bits AE3 to AE0 are initialized to B'1101. Address pins A0 to A7 are made address outputs by setting the corresponding DDR bits to 1. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 81 of 1126 Section 3 MCU Operating Modes 3.3 Operating Mode Descriptions 3.3.1 Mode 4 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is disabled. Ports A, B, and C, function as an address bus, ports D and E function as a data bus, and part of port F carries bus control signals. The initial bus mode after a reset is 16 bits, with 16-bit access to all areas. However, note that if 8bit access is designated by the bus controller for all areas, the bus mode switches to 8 bits. 3.3.2 Mode 5 The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is disabled. Ports A, B, and C, function as an address bus, ports D and E function as a data bus, and part of port F carries bus control signals. The initial bus mode after a reset is 8 bits, with 8-bit access to all areas. However, note that if 16bit access is designated by the bus controller for any area, the bus mode switches to 16 bits and port E becomes a data bus. 3.3.3 Mode 6 The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is enabled. Ports A, B, and C, function as input port pins immediately after a reset. Address output can be performed by setting the corresponding DDR (data direction register) bits to 1. Port D functions as a data bus, and part of port F carries bus control signals. The initial bus mode after a reset is 8 bits, with 8-bit access to all areas. However, note that if 16bit access is designated by the bus controller for any area, the bus mode switches to 16 bits and port E becomes a data bus. 3.3.4 Mode 7 The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is enabled, but external addresses cannot be accessed. All I/O ports are available for use as input-output ports. Page 82 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 3.4 Section 3 MCU Operating Modes Pin Functions in Each Operating Mode The pin functions of ports A to F vary depending on the operating mode. Table 3.3 shows their functions in each operating mode. Table 3.3 Pin Functions in Each Mode Port Mode 4 Mode 5 Mode 6 Mode 7 P/A* P Port B P/A* P/A* P*/A P*/A Port C A A P*/A P Port D D P PF7 P/D* P/C* D P*/D P Port E D P*/D P/C* P/C* P*/C PF6 to PF4 C P/C* P*/C C P*/C C P*/C P PF3 P*/C P*/C Port A P/A* Port F PF2 P Legend: P: I/O port A: Address bus output D: Data bus I/O C: Control signals, clock I/O *: After reset 3.5 Address Map in Each Operating Mode A address maps of the H8S/2646 Group are shown in figures 3.1 (1) and 3.1 (2). The address space is 16 Mbytes in modes 4 to 7 (advanced modes). The address space is divided into eight areas for modes 4 to 7. For details, see section 7, Bus Controller. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 83 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 3 MCU Operating Modes Modes 4 and 5 (advanced expanded modes with on-chip ROM disabled) Mode 6 (advanced expanded mode with on-chip ROM enabled) H'000000 H'000000 H'01FFFF H'020000 H'FFAFFF H'FFB000 Reserved area H'FFDFFF H'FFE000 H'000000 On-chip ROM External address space H'FFAFFF H'FFB000 Mode 7 (advanced single-chip mode) On-chip ROM H'01FFFF External address space Reserved area H'FFDFFF H'FFE000 On-chip RAM* H'FFE000 On-chip RAM On-chip RAM* H'FFEFBF H'FFEFC0 External address space H'FFF800 H'FFEFC0 H'FFF800 H'FFFF60 External address space Internal I/O registers H'FFFFC0 H'FFFFFF On-chip RAM* H'FFF800 Internal I/O registers Internal I/O registers H'FFFF40 External address space H'FFFF40 H'FFFF60 H'FFFFC0 H'FFFFFF Internal I/O registers H'FFFF3F External address space Internal I/O registers On-chip RAM* H'FFFF60 Internal I/O registers H'FFFFC0 H'FFFFFF On-chip RAM Note: * External addresses can be accessed by clearing th RAME bit in SYSCR to 0. Figure 3.1 (1) Address Map in Each Operating Mode in the H8S/2646, H8S/2646R, H8S/2648, and H8S/2648R Page 84 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 3 MCU Operating Modes Modes 4 and 5 (advanced expanded modes with on-chip ROM disabled) Mode 6 (advanced expanded mode with on-chip ROM enabled) H'000000 H'000000 Mode 7 (advanced single-chip mode) H'000000 On-chip ROM On-chip ROM H'00FFFF H'010000 H'00FFFF H'010000 External address space Reserved area H'01FFFF H'020000 H'FFAFFF H'FFB000 H'FFAFFF H'FFB000 Reserved area H'FFE7FF H'FFE800 Reserved area H'01FFFF External address space Reserved area H'FFE7FF H'FFE800 On-chip RAM* H'FFE800 On-chip RAM* On-chip RAM H'FFEFBF H'FFEFC0 H'FFF800 External address space H'FFEFC0 H'FFF800 H'FFFF60 H'FFFFC0 H'FFFFFF External address space Internal I/O registers On-chip RAM* H'FFF800 Internal I/O registers Internal I/O registers H'FFFF40 External address space H'FFFF40 H'FFFF60 H'FFFFC0 H'FFFFFF Internal I/O registers H'FFFF3F External address space Internal I/O registers On-chip RAM* H'FFFF60 Internal I/O registers H'FFFFC0 H'FFFFFF On-chip RAM Note: * External addresses can be accessed by clearing th RAME bit in SYSCR to 0. Figure 3.1 (2) Address Map in Each Operating Mode in the H8S/2645 and H8S/2647 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 85 of 1126 Section 3 MCU Operating Modes Page 86 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 4 Exception Handling Section 4 Exception Handling 4.1 Overview 4.1.1 Exception Handling Types and Priority As table 4.1 indicates, exception handling may be caused by a reset, trace, direct transition, trap instruction, or interrupt. Exception handling is prioritized as shown in table 4.1. If two or more exceptions occur simultaneously, they are accepted and processed in order of priority. Trap instruction exceptions are accepted at all times, in the program execution state. Exception handling sources, the stack structure, and the operation of the CPU vary depending on the interrupt control mode set by the INTM0 and INTM1 bits of SYSCR. Table 4.1 Exception Types and Priority Priority Exception Type Start of Exception Handling High Reset Starts immediately after a low-to-high transition at the RES pin, or when the watchdog overflows. The CPU enters the reset state when the RES pin is low. Low 1 Trace* Starts when execution of the current instruction or exception handling ends, if the trace (T) bit is set to 1 Direct transition Starts when a direct transition occurs due to execution of a SLEEP instruction. Interrupt Starts when execution of the current instruction or exception 2 handling ends, if an interrupt request has been issued* Trap instruction 3 (TRAPA)* Started by execution of a trap instruction (TRAPA) Notes: 1. Traces are enabled only in interrupt control mode 2. Trace exception handling is not executed after execution of an RTE instruction. 2. Interrupt detection is not performed on completion of ANDC, ORC, XORC, or LDC instruction execution, or on completion of reset exception handling. 3. Trap instruction exception handling requests are accepted at all times in program execution state. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 87 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 4 Exception Handling 4.1.2 Exception Handling Operation Exceptions originate from various sources. Trap instructions and interrupts are handled as follows: 1. The program counter (PC), condition code register (CCR), and extended register (EXR) are pushed onto the stack. 2. The interrupt mask bits are updated. The T bit is cleared to 0. 3. A vector address corresponding to the exception source is generated, and program execution starts from that address. For a reset exception, steps 2 and 3 above are carried out. 4.1.3 Exception Vector Table The exception sources are classified as shown in figure 4.1. Different vector addresses are assigned to different exception sources. Table 4.2 lists the exception sources and their vector addresses. Reset Trace Exception sources External interrupts: NMI, IRQ5 to IRQ0 Internal interrupts: Interrupts from on-chip supporting modules 43 sources in the H8S/2646, H8S/2646R, and H8S/2645 47 sources in the H8S/2648, H8S/2648R, and H8S/2647 Trap instruction Interrupts Figure 4.1 Exception Sources Page 88 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Table 4.2 Section 4 Exception Handling Exception Vector Table Vector Address* Exception Source Vector Number Advanced Mode Reset 0 H'0000 to H'0003 Reserved for system use 1 H'0004 to H'0007 2 H'0008 to H'000B 3 H'000C to H'000F 4 H'0010 to H'0013 Trace Direct Transition* 3 External interrupt NMI Trap instruction (4 sources) Reserved for system use External interrupt 2 Internal interrupt* H'0014 to H'0017 H'0018 to H'001B 7 H'001C to H'001F 8 H'0020 to H'0023 9 H'0024 to H'0027 10 H'0028 to H'002B 11 H'002C to H'002F 12 H'0030 to H'0033 13 H'0034 to H'0037 14 H'0038 to H'003B 15 H'003C to H'003F IRQ0 16 H'0040 to H'0043 IRQ1 17 H'0044 to H'0047 IRQ2 18 H'0048 to H'004B IRQ3 19 H'004C to H'004F IRQ4 20 H'0050 to H'0053 IRQ5 Reserved for system use 5 6 1 21 H'0054 to H'0057 22 H'0058 to H'005B 23 H'005C to H'005F 24 127 H'0060 to H'0063 H'01FC to H'01FF Notes: 1. Lower 16 bits of the address. 2. For details of internal interrupt vectors, see section 5.3.3, Interrupt Exception Handling Vector Table. 3. See section 22.11, Direct Transitions, for details on direct transition. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 89 of 1126 Section 4 Exception Handling 4.2 Reset 4.2.1 Overview H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM A reset has the highest exception priority. When the RES pin goes low, all current operations are stopped, and this LSI enters reset state. A reset initializes the internal state of the CPU and the registers of on-chip supporting modules. Immediately after a reset, interrupt control mode 0 is set. When the RES pin goes from low to high, reset exception handling starts. The H8S/2646 Group can also be reset by overflow of the watchdog timer. For details see section 12, Watchdog Timer. 4.2.2 Reset Sequence This LSI enters reset state when the RES pin goes low. To ensure that this LSI is reset, hold the RES pin low for at least 20 ms at power-up. To reset during operation, hold the RES pin low for at least 20 states. When the RES pin goes high after being held low for the necessary time, this LSI starts reset exception handling as follows. 1. The internal state of the CPU and the registers of the on-chip supporting modules are initialized, the T bit is cleared to 0 in EXR, and the I bit is set to 1 in EXR and CCR. 2. The reset exception handling vector address is read and transferred to the PC, and program execution starts from the address indicated by the PC. Figures 4.2 and 4.3 show examples of the reset sequence. Page 90 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 4 Exception Handling Vector fetch Internal Prefetch of first program processing instruction RES Internal address bus (3) (1) (5) Internal read signal High Internal write signal Internal data bus (2) (4) (6) (1) (3) Reset exception handling vector address (when reset, (1) = H'000000, (3) = H'000002) (2) (4) Start address (contents of reset exception handling vector address) (5) Start address ((5) = (2) (4)) (6) First program instruction Figure 4.2 Reset Sequence (Modes 6 and 7) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 91 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 4 Exception Handling Vector fetch * Internal processing * Prefetch of first program instruction * RES (1) Address bus (3) (5) RD HWR, LWR High D15 to D0 (2) (4) (6) (1) (3) Reset exception handling vector address (when reset, (1) = H'000000, (3) = H'000002) (2) (4) Start address (contents of reset exception handling vector address) (5) Start address ((5) = (2) (4)) (6) First program instruction Note: * 3 program wait states are inserted. Figure 4.3 Reset Sequence (Mode 4) 4.2.3 Interrupts after Reset If an interrupt is accepted after a reset but before the stack pointer (SP) is initialized, the PC and CCR will not be saved correctly, leading to a program crash. To prevent this, all interrupt requests, including NMI, are disabled immediately after a reset. Since the first instruction of a program is always executed immediately after the reset state ends, make sure that this instruction initializes the stack pointer (example: MOV.L #xx: 32, SP). Page 92 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 4.2.4 Section 4 Exception Handling State of On-Chip Supporting Modules after Reset Release After reset release, MSTPCRA to MSTPCRD are initialized to H'3F, H'FF, H'FF, and *1 B'11****** , respectively, and all modules except the DTC, enter module stop mode. Consequently, on-chip supporting module registers cannot be read or written to. Register reading and writing is enabled when module stop mode is exited. Note: 1. The value of bits 5 to 0 is undefined. 4.3 Traces Traces are enabled in interrupt control mode 2. Trace mode is not activated in interrupt control mode 0, irrespective of the state of the T bit. For details of interrupt control modes, see section 5, Interrupt Controller. If the T bit in EXR is set to 1, trace mode is activated. In trace mode, a trace exception occurs on completion of each instruction. Trace mode is canceled by clearing the T bit in EXR to 0. It is not affected by interrupt masking. Table 4.3 shows the state of CCR and EXR after execution of trace exception handling. Interrupts are accepted even within the trace exception handling routine. The T bit saved on the stack retains its value of 1, and when control is returned from the trace exception handling routine by the RTE instruction, trace mode resumes. Trace exception handling is not carried out after execution of the RTE instruction. Table 4.3 Status of CCR and EXR after Trace Exception Handling CCR EXR Interrupt Control Mode I UI I2 to I0 T 0 * * * * 2 1 -- -- 0 Legend: 1: Set to 1 0: Cleared to 0 --: Retains value prior to execution. *: Trace exception handling cannot be used. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 93 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 4 Exception Handling 4.4 Interrupts Interrupt exception handling can be requested by seven external sources (NMI, IRQ5 to IRQ0) and internal sources (43 sources in the H8S/2646, H8S/2646R, and H8S/2645, and 47 sources in the H8S/2648, H8S/2648R, and H8S/2647) in the on-chip supporting modules. Figure 4.4 classifies the interrupt sources and the number of interrupts of each type. The on-chip supporting modules that can request interrupts include the watchdog timer (WDT), 16-bit timer pulse unit (TPU), serial communication interface (SCI), data transfer controller (DTC), PC break controller (PBC), A/D converter, controller area network (HCAN), and motor control PWM timer. Each interrupt source has a separate vector address. NMI is the highest-priority interrupt. Interrupts are controlled by the interrupt controller. The interrupt controller has two interrupt control modes and can assign interrupts other than NMI to eight priority/mask levels to enable multiplexed interrupt control. For details of interrupts, see section 5, Interrupt Controller. External interrupts Interrupts Internal interrupts NMI (1) IRQ5 to IRQ0 (6) WDT* (2) TPU (26) SCI (8): H8S/2646, H8S/2646R, H8S/2645 SCI (12): H8S/2648, H8S/2648R, H8S/2647 DTC (1) PBC (1) A/D converter (1) PWM (2) HCAN (2) Notes: Numbers in parentheses are the numbers of interrupt sources. * When the watchdog timer is used as an interval timer, it generates an interrupt request at each counter overflow. Figure 4.4 Interrupt Sources and Number of Interrupts Page 94 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 4.5 Section 4 Exception Handling Trap Instruction Trap instruction exception handling starts when a TRAPA instruction is executed. Trap instruction exception handling can be executed at all times in the program execution state. The TRAPA instruction fetches a start address from a vector table entry corresponding to a vector number from 0 to 3, as specified in the instruction code. Table 4.4 shows the status of CCR and EXR after execution of trap instruction exception handling. Table 4.4 Status of CCR and EXR after Trap Instruction Exception Handling CCR EXR Interrupt Control Mode I UI I2 to I0 T 0 1 -- -- -- 2 1 -- -- 0 Legend: 1: Set to 1 0: Cleared to 0 --: Retains value prior to execution. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 95 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 4 Exception Handling 4.6 Stack Status after Exception Handling Figure 4.5 shows the stack after completion of trap instruction exception handling and interrupt exception handling. SP SP CCR CCR* PC (16 bits) (a) Interrupt control mode 0 EXR Reserved* CCR CCR* PC (16 bits) (b) Interrupt control mode 2 Note: * Ignored on return. Figure 4.5 (1) Stack Status after Exception Handling (Normal Mode: Not Available in the H8S/2646 Group) SP SP CCR EXR Reserved* CCR PC (24 bits) PC (24 bits) (a) Interrupt control mode 0 (b) Interrupt control mode 2 Note: * Ignored on return. Figure 4.5 (2) Stack Status after Exception Handling (Advanced Mode) Page 96 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 4.7 Section 4 Exception Handling Notes on Use of the Stack When accessing word data or longword data, the H8S/2646 Group assumes that the lowest address bit is 0. The stack should always be accessed by word transfer instruction or longword transfer instruction, and the value of the stack pointer (SP, ER7) should always be kept even. Use the following instructions to save registers: PUSH.W Rn (or MOV.W Rn, @-SP) PUSH.L ERn (or MOV.L ERn, @-SP) Use the following instructions to restore registers: POP.W Rn (or MOV.W @SP+, Rn) POP.L ERn (or MOV.L @SP+, ERn) Setting SP to an odd value may lead to a malfunction. Figure 4.6 shows an example of what happens when the SP value is odd. CCR SP R1L SP PC PC SP TRAPA instruction executed SP set to H'FFFEFF H'FFFEFA H'FFFEFB H'FFFEFC H'FFFEFD H'FFFEFE H'FFFEFF MOV.B R1L, @-ER7 Data saved above SP Contents of CCR lost Legend: CCR: Condition code register PC: Program counter R1L: General register R1L SP: Stack pointer Note: This diagram illustrates an example in which the interrupt control mode is 0, in advanced mode. Figure 4.6 Operation when SP Value is Odd REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 97 of 1126 Section 4 Exception Handling Page 98 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller Section 5 Interrupt Controller 5.1 Overview 5.1.1 Features The H8S/2646 Group controls interrupts by means of an interrupt controller. The interrupt controller has the following features: * Two interrupt control modes Any of two interrupt control modes can be set by means of the INTM1 and INTM0 bits in the system control register (SYSCR). * Priorities settable with IPR An interrupt priority register (IPR) is provided for setting interrupt priorities. Eight priority levels can be set for each module for all interrupts except NMI. NMI is assigned the highest priority level of 8, and can be accepted at all times. * Independent vector addresses All interrupt sources are assigned independent vector addresses, making it unnecessary for the source to be identified in the interrupt handling routine. * Seven external interrupts NMI is the highest-priority interrupt, and is accepted at all times. Rising edge or falling edge can be selected for NMI. Falling edge, rising edge, or both edge detection, or level sensing, can be selected for IRQ5 to IRQ0. * DTC control DTC activation is performed by means of interrupts. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 99 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller 5.1.2 Block Diagram A block diagram of the interrupt controller is shown in figure 5.1. CPU INTM1, INTM0 SYSCR NMIEG NMI input NMI input unit IRQ input IRQ input unit ISR ISCR IER Interrupt request Vector number Priority determination I Internal interrupt request SWDTEND to RM0 I2 to I0 CCR EXR IPR Interrupt controller Legend: ISCR IER ISR IPR SYSCR : IRQ sense control register : IRQ enable register : IRQ status register : Interrupt priority register : System control register Figure 5.1 Block Diagram of Interrupt Controller Page 100 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 5.1.3 Section 5 Interrupt Controller Pin Configuration Table 5.1 summarizes the pins of the interrupt controller. Table 5.1 Interrupt Controller Pins Name Symbol I/O Function Nonmaskable interrupt NMI Input Nonmaskable external interrupt; rising or falling edge can be selected External interrupt requests 5 to 0 IRQ5 to IRQ0 Input 5.1.4 Maskable external interrupts; rising, falling, or both edges, or level sensing, can be selected Register Configuration Table 5.2 summarizes the registers of the interrupt controller. Table 5.2 Interrupt Controller Registers Name Abbreviation R/W Initial Value 1 Address* System control register SYSCR R/W H'01 H'FDE5 IRQ sense control register H ISCRH R/W H'00 H'FE12 IRQ sense control register L ISCRL R/W H'00 H'FE13 IRQ enable register IER H'FE14 ISR R/W 2 R/(W)* H'00 IRQ status register H'00 H'FE15 Interrupt priority register A IPRA R/W H'77 H'FEC0 Interrupt priority register B IPRB R/W H'77 H'FEC1 Interrupt priority register C IPRC R/W H'77 H'FEC2 Interrupt priority register D IPRD R/W H'77 H'FEC3 Interrupt priority register E IPRE R/W H'77 H'FEC4 Interrupt priority register F IPRF R/W H'77 H'FEC5 Interrupt priority register G IPRG R/W H'77 H'FEC6 Interrupt priority register H IPRH R/W H'77 H'FEC7 Interrupt priority register J IPRJ R/W H'77 H'FEC9 Interrupt priority register K IPRK R/W H'77 H'FECA Interrupt priority register M IPRM R/W H'77 H'FECC Notes: 1. Lower 16 bits of the address. 2. Can only be written with 0 for flag clearing. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 101 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller 5.2 Register Descriptions 5.2.1 System Control Register (SYSCR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 MACS -- INTM1 INTM0 NMIEG -- -- RAME 0 0 0 0 0 0 0 1 R/W -- R/W R/W R/W R/W -- R/W SYSCR is an 8-bit readable/writable register that selects the interrupt control mode, and the detected edge for NMI. Only bits 5 to 3 are described here; for details of the other bits, see section 3.2.2, System Control Register (SYSCR). SYSCR is initialized to H'01 by a reset and in hardware standby mode. SYSCR is not initialized in software standby mode. Bits 5 and 4--Interrupt Control Mode 1 and 0 (INTM1, INTM0): These bits select one of two interrupt control modes for the interrupt controller. Bit 5 INTM1 Bit 4 INTM0 Interrupt Control Mode Description 0 0 0 Interrupts are controlled by I bit 1 -- Setting prohibited 0 2 Interrupts are controlled by bits I2 to I0, and IPR 1 -- Setting prohibited 1 (Initial value) Bit 3--NMI Edge Select (NMIEG): Selects the input edge for the NMI pin. Bit 3 NMIEG Description 0 Interrupt request generated at falling edge of NMI input 1 Interrupt request generated at rising edge of NMI input Page 102 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 5.2.2 Section 5 Interrupt Controller Interrupt Priority Registers A to H, J, K, M (IPRA to IPRH, IPRJ, IPRK, IPRM) Bit : 7 6 5 4 3 2 1 0 -- IPR6 IPR5 IPR4 -- IPR2 IPR1 IPR0 Initial value : 0 1 1 1 0 1 1 1 R/W -- R/W R/W R/W -- R/W R/W R/W : The IPR registers are eleven 8-bit readable/writable registers that set priorities (level 7 to 0) for interrupts other than NMI. The correspondence between IPR settings and interrupt sources is shown in table 5.3. The IPR registers set a priority (level 7 to 0) for each interrupt source other than NMI. The IPR registers are initialized to H'77 by a reset and in hardware standby mode. Bits 7 and 3--Reserved: These bits are always read as 0 and cannot be modified. Table 5.3 Correspondence between Interrupt Sources and IPR Settings Bits Register 6 to 4 2 to 0 IPRA IRQ0 IRQ1 IPRB IRQ2 IRQ4 IRQ5 IPRC IRQ3 1 --* IPRD Watchdog timer 0 DTC 1 --* IPRE PC break A/D converter, Watchdog timer 1 IPRF TPU channel 0 TPU channel 1 IPRG TPU channel 2 TPU channel 3 IPRH TPU channel 5 IPRJ TPU channel 4 1 --* SCI channel 0 IPRK SCI channel 1 SCI channel 2* IPRM PWM channel 1, 2 HCAN 2 Notes: 1. Reserved. These bits are always read as 1 and cannot be modified. 2. In the H8S/2646, H8S/2646R, and H8S/2645 these are reserved bits that are always read as 1 and should only be written with H'7. In the H8S/2648, H8S/2648R, and H8S/2647 these are the IPR bits for SCI channel 2. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 103 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller As shown in table 5.3, multiple interrupts are assigned to one IPR. Setting a value in the range from H'0 to H'7 in the 3-bit groups of bits 6 to 4 and 2 to 0 sets the priority of the corresponding interrupt. The lowest priority level, level 0, is assigned by setting H'0, and the highest priority level, level 7, by setting H'7. When interrupt requests are generated, the highest-priority interrupt according to the priority levels set in the IPR registers is selected. This interrupt level is then compared with the interrupt mask level set by the interrupt mask bits (I2 to I0) in the extend register (EXR) in the CPU, and if the priority level of the interrupt is higher than the set mask level, an interrupt request is issued to the CPU. 5.2.3 IRQ Enable Register (IER) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 -- -- IRQ5E IRQ4E IRQ3E IRQ2E IRQ1E IRQ0E 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W IER is an 8-bit readable/writable register that controls enabling and disabling of interrupt requests IRQ5 to IRQ0. IER is initialized to H'00 by a reset and in hardware standby mode. Bits 7 and 6--Reserved: These bits are always read as 0, and should only be written with 0. Bits 5 to 0--IRQ5 to IRQ0 Enable (IRQ5E to IRQ0E): These bits select whether IRQ5 to IRQ0 are enabled or disabled. Bit n IRQnE Description 0 IRQn interrupts disabled 1 IRQn interrupts enabled (Initial value) (n = 5 to 0) Page 104 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 5.2.4 Section 5 Interrupt Controller IRQ Sense Control Registers H and L (ISCRH, ISCRL) ISCRH Bit : Initial value : R/W : 15 14 13 12 -- -- -- -- 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 11 10 9 8 IRQ5SCB IRQ5SCA IRQ4SCB IRQ4SCA ISCRL Bit : IRQ3SCB IRQ3SCA IRQ2SCB IRQ2SCA IRQ1SCB IRQ1SCA IRQ0SCB IRQ0SCA Initial value : R/W : 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W The ISCR registers are 16-bit readable/writable registers that select rising edge, falling edge, or both edge detection, or level sensing, for the input at pins IRQ5 to IRQ0. The ISCR registers are initialized to H'0000 by a reset and in hardware standby mode. Bits 15 to 12--Reserved: These bits are always read as 0, and should only be written with 0. Bits 11 to 0: IRQ5 Sense Control A and B (IRQ5SCA, IRQ5SCB) to IRQ0 Sense Control A and B (IRQ0SCA, IRQ0SCB) Bits 11 to 0 IRQ5SCB to IRQ0SCB IRQ5SCA to IRQ0SCA 0 0 Interrupt request generated at IRQ5 to IRQ0 input low level (initial value) 1 Interrupt request generated at falling edge of IRQ5 to IRQ0 input 0 Interrupt request generated at rising edge of IRQ5 to IRQ0 input 1 Interrupt request generated at both falling and rising edges of IRQ5 to IRQ0 input 1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Description Page 105 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller 5.2.5 IRQ Status Register (ISR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 -- -- IRQ5F IRQ4F IRQ3F IRQ2F IRQ1F IRQ0F 0 0 0 0 0 0 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Note: * Only 0 can be written, to clear the flag. ISR is an 8-bit readable/writable register that indicates the status of IRQ5 to IRQ0 interrupt requests. ISR is initialized to H'00 by a reset and in hardware standby mode. They are not initialized in software standby mode. Bits 7 and 6--Reserved: These bits are always read as 0. Bits 5 to 0--IRQ5 to IRQ0 flags (IRQ5F to IRQ0F): These bits indicate the status of IRQ5 to IRQ0 interrupt requests. Bit n IRQnF Description 0 [Clearing conditions] (Initial value) * Cleared by reading IRQnF flag when IRQnF = 1, then writing 0 to IRQnF flag * When interrupt exception handling is executed when low-level detection is set (IRQnSCB = IRQnSCA = 0) and IRQn input is high * When IRQn interrupt exception handling is executed when falling, rising, or bothedge detection is set (IRQnSCB = 1 or IRQnSCA = 1) * When the DTC is activated by an IRQn interrupt, and the DISEL bit in MRB of the DTC is cleared to 0 1 [Setting conditions] * When IRQn input goes low when low-level detection is set (IRQnSCB = IRQnSCA = 0) * When a falling edge occurs in IRQn input when falling edge detection is set (IRQnSCB = 0, IRQnSCA = 1) * When a rising edge occurs in IRQn input when rising edge detection is set (IRQnSCB = 1, IRQnSCA = 0) * When a falling or rising edge occurs in IRQn input when both-edge detection is set (IRQnSCB = IRQnSCA = 1) (n = 5 to 0) Page 106 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 5.3 Section 5 Interrupt Controller Interrupt Sources Interrupt sources comprise external interrupts (NMI and IRQ5 to IRQ0) and internal interrupts*. Note: * 47 sources in the H8S/2648, H8S/2648R, and H8S/2647. 43 sources in the H8S/2646, H8S/2646R, and H8S/2645. 5.3.1 External Interrupts There are seven external interrupts: NMI and IRQ5 to IRQ0. Of these, NMI and IRQ5 to IRQ0 can be used to restore the H8S/2646 Group from software standby mode. NMI Interrupt: NMI is the highest-priority interrupt, and is always accepted by the CPU regardless of the interrupt control mode or the status of the CPU interrupt mask bits. The NMIEG bit in SYSCR can be used to select whether an interrupt is requested at a rising edge or a falling edge on the NMI pin. The vector number for NMI interrupt exception handling is 7. IRQ5 to IRQ0 Interrupts: Interrupts IRQ5 to IRQ0 are requested by an input signal at pins IRQ5 to IRQ0. Interrupts IRQ5 to IRQ0 have the following features: * Using ISCR, it is possible to select whether an interrupt is generated by a low level, falling edge, rising edge, or both edges, at pins IRQ5 to IRQ0. * Enabling or disabling of interrupt requests IRQ5 to IRQ0 can be selected with IER. * The interrupt priority level can be set with IPR. * The status of interrupt requests IRQ5 to IRQ0 is indicated in ISR. ISR flags can be cleared to 0 by software. A block diagram of interrupts IRQ5 to IRQ0 is shown in figure 5.2. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 107 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller IRQnE IRQnSCA, IRQnSCB IRQnF Edge/level detection circuit IRQn interrupt S Q request R IRQn input Clear signal Note: n = 5 to 0 Figure 5.2 Block Diagram of Interrupts IRQ5 to IRQ0 Figure 5.3 shows the timing of setting IRQnF. IRQn input pin IRQnF Figure 5.3 Timing of Setting IRQnF The vector numbers for IRQ5 to IRQ0 interrupt exception handling are 21 to 16. Detection of IRQ5 to IRQ0 interrupts does not depend on whether the relevant pin has been set for input or output. However, when a pin is used as an external interrupt input pin, do not clear the corresponding DDR to 0 and use the pin as an I/O pin for another function. Page 108 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 5.3.2 Section 5 Interrupt Controller Internal Interrupts There are 47 sources in the H8S/2648, H8S/2648R, and H8S/2647 and 43 sources in the H8S/2646, H8S/2646R, and H8S/2645 for internal interrupts from on-chip supporting modules. * For each on-chip supporting module there are flags that indicate the interrupt request status, and enable bits that select enabling or disabling of these interrupts. If both of these are set to 1 for a particular interrupt source, an interrupt request is issued to the interrupt controller. * The interrupt priority level can be set by means of IPR. * The DTC can be activated by a TPU, SCI, or other interrupt request. When the DTC is activated by an interrupt, the interrupt control mode and interrupt mask bits are not affected. 5.3.3 Interrupt Exception Handling Vector Table Table 5.4 shows interrupt exception handling sources, vector addresses, and interrupt priorities. For default priorities, the lower the vector number, the higher the priority. Priorities among modules can be set by means of the IPR. The situation when two or more modules are set to the same priority, and priorities within a module, are fixed as shown in table 5.4. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 109 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller Table 5.4 Interrupt Sources, Vector Addresses, and Interrupt Priorities Origin of Interrupt Source Vector 1 Address* Vector Number Advanced Mode 7 H'001C 16 H'0040 IPRA6 to 4 IRQ1 17 H'0044 IPRA2 to 0 IRQ2 IRQ3 18 19 H'0048 H'004C IPRB6 to 4 IRQ4 IRQ5 20 21 H'0050 H'0054 IPRB2 to 0 Interrupt Source NMI IRQ0 External pin IPR High Reserved for system use -- 22 23 H'0058 H'005C -- SWDTEND (software activation interrupt end) DTC 24 H'0060 IPRC2 to 0 WOVI0 (interval timer) Watchdog timer 0 25 H'0064 IPRD6 to 4 Reserved for system use -- 26 H'0068 -- PC break PC break controller 27 H'006C IPRE6 to 4 ADI (A/D conversion end) A/D 28 H'0070 IPRE2 to 0 WOVI1 (interval timer) Watchdog timer 1 29 H'0074 Reserved for system use -- 30 31 H'0078 H'007C TGI0A (TGR0A input capture/compare match) TPU channel 0 32 H'0080 TGI0B (TGR0B input capture/compare match) 33 H'0084 TGI0C (TGR0C input capture/compare match) 34 H'0088 TGI0D (TGR0D input capture/compare match) 35 H'008C TCI0V (overflow 0) Reserved for system use Page 110 of 1126 -- 36 H'0090 37 to 39 H'0094 to H'009C Priority IPRF6 to 4 Low REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller Interrupt Source Origin of Interrupt Source TGI1A (TGR1A input capture/compare match) TPU channel 1 TGI1B (TGR1B input capture/compare match) Vector 1 Address* Vector Number Advanced Mode IPR Priority 40 H'00A0 IPRF2 to 0 High 41 H'00A4 TCI1V (overflow 1) 42 H'00A8 TCI1U (underflow 1) 43 H'00AC 44 H'00B0 TGI2B (TGR2B input capture/compare match) 45 H'00B4 TCI2V (overflow 2) 46 H'00B8 TGI2A (TGR2A input capture/compare match) TPU channel 2 TCI2U (underflow 2) 47 H'00BC 48 H'00C0 TGI3B (TGR3B input capture/compare match) 49 H'00C4 TGI3C (TGR3C input capture/compare match) 50 H'00C8 TGI3D (TGR3D input capture/compare match) 51 H'00CC TCI3V (overflow 3) 52 H'00D0 TGI3A (TGR3A input capture/compare match) TPU channel 3 Reserved for system use -- 53 to 55 H'00D4 to H'00DC TGI4A (TGR4A input capture/compare match) TPU channel 4 56 H'00E0 TGI4B (TGR4B input capture/compare match) 57 H'00E4 TCI4V (overflow 4) 58 H'00E8 TCI4U (underflow 4) 59 H'00EC TGI5A (TGR5A input capture/compare match) 60 H'00F0 TGI5B (TGR5B input capture/compare match) 61 H'00F4 TCI5V (overflow 5) 62 H'00F8 TCI5U (underflow 5) 63 H'00FC REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 TPU channel 5 IPRG6 to 4 IPRG2 to 0 IPRH6 to 4 IPRH2 to 0 Low Page 111 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller Interrupt Source Origin of Interrupt Source Reserved for system use ERI0 (receive error 0) RXI0 (reception completed 0) Vector Number Advanced Mode -- 64 to 79 SCI channel 0 TXI0 (transmit data empty 0) TEI0 (transmission end 0) ERI1 (receive error 1) RXI1 (reception completed 1) SCI channel 1 TXI1 (transmit data empty 1) TEI1 (transmission end 1) ERI2 (receive error 2) RXI2 (reception completed 2) Vector 1 Address* IPR Priority H'0100 to H'013C -- High 80 H'0140 IPRJ2 to 0 81 H'0144 82 H'0148 83 H'014C 84 H'0150 85 H'0154 86 H'0158 87 H'015C 88 SCI 2 channel 2* 89 H'0160 H'0164 90 H'0168 TXI2 (transmit data empty 2) TEI2 (transmission end 2) IPRK6 to 4 IPRK2 to 0 91 H'016C Reserved for system use -- 92 to 103 H'0170 to H'019C -- CMI1 (PWCYR1 compare match) PWM 104 H'01A0 IPRM6 to 4 105 H'01A4 CMI2 (PWCYR2 compare match) Reserved for system use -- 106 107 H'01A8 H'01AC ERS0, OVR0, RM1, SLE0, RM0 (mailbox 0 reception) HCAN 108 109 H'01B0 H'01B4 Reserved for system use -- 110 111 H'01B8 H'01BC Reserved for system use -- 112 to 123 H'01C0 to H'01EC IPRM2 to 0 -- Low Notes: 1. Lower 16 bits of the start address. 2. These vectors are used in the H8S/2648, H8S/2648R, and H8S/2647. They are reserved in the H8S/2646, H8S/2646R, and H8S/2645. Page 112 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller 5.4 Interrupt Operation 5.4.1 Interrupt Control Modes and Interrupt Operation Interrupt operations in the H8S/2646 Group differ depending on the interrupt control mode. NMI interrupts are accepted at all times except in the reset state and the hardware standby state. In the case of IRQ interrupts and on-chip supporting module interrupts, an enable bit is provided for each interrupt. Clearing an enable bit to 0 disables the corresponding interrupt request. Interrupt sources for which the enable bits are set to 1 are controlled by the interrupt controller. Table 5.5 shows the interrupt control modes. The interrupt controller performs interrupt control according to the interrupt control mode set by the INTM1 and INTM0 bits in SYSCR, the priorities set in IPR, and the masking state indicated by the I bit in the CPU's CCR, and bits I2 to I0 in EXR. Table 5.5 Interrupt Control Modes SYSCR Interrupt Control Mode INTM1 INTM0 Priority Setting Registers Interrupt Mask Bits 0 -- I Interrupt mask control is performed by the I bit. 0 0 1 -- -- Setting prohibited 1 0 IPR I2 to I0 8-level interrupt mask control is performed by bits I2 to I0. 8 priority levels can be set with IPR. 1 -- -- Setting prohibited -- 2 -- REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Description Page 113 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller Figure 5.4 shows a block diagram of the priority decision circuit. Interrupt control mode 0 I Interrupt acceptance control Default priority determination Interrupt source Vector number 8-level mask control IPR I2 to I0 Interrupt control mode 2 Figure 5.4 Block Diagram of Interrupt Control Operation Interrupt Acceptance Control: In interrupt control mode 0, interrupt acceptance is controlled by the I bit in CCR. Table 5.6 shows the interrupts selected in each interrupt control mode. Table 5.6 Interrupts Selected in Each Interrupt Control Mode (1) Interrupt Mask Bits Interrupt Control Mode I 0 0 All interrupts 1 NMI interrupts * All interrupts 2 Selected Interrupts Legend: *: Don't care Page 114 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller 8-Level Control: In interrupt control mode 2, 8-level mask level determination is performed for the selected interrupts in interrupt acceptance control according to the interrupt priority level (IPR). The interrupt source selected is the interrupt with the highest priority level, and whose priority level set in IPR is higher than the mask level. Table 5.7 Interrupts Selected in Each Interrupt Control Mode (2) Interrupt Control Mode Selected Interrupts 0 All interrupts 2 Highest-priority-level (IPR) interrupt whose priority level is greater than the mask level (IPR > I2 to I0). Default Priority Determination: When an interrupt is selected by 8-level control, its priority is determined and a vector number is generated. If the same value is set for IPR, acceptance of multiple interrupts is enabled, and so only the interrupt source with the highest priority according to the preset default priorities is selected and has a vector number generated. Interrupt sources with a lower priority than the accepted interrupt source are held pending. Table 5.8 shows operations and control signal functions in each interrupt control mode. Table 5.8 Operations and Control Signal Functions in Each Interrupt Control Mode Interrupt Acceptance Control Interrupt Control Mode INTM1 INTM0 I 0 0 0 2 1 0 IM 1 --* Setting X 8-Level Control X Default Priority Determination T (Trace) I2 to I0 IPR -- 2 --* -- IM PR T Legend: : Interrupt operation control performed X : No operation. (All interrupts enabled) IM : Used as interrupt mask bit PR : Sets priority. -- : Not used. Notes: 1. Set to 1 when interrupt is accepted. 2. Keep the initial setting. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 115 of 1126 Section 5 Interrupt Controller 5.4.2 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Interrupt Control Mode 0 Enabling and disabling of IRQ interrupts and on-chip supporting module interrupts can be set by means of the I bit in the CPU's CCR. Interrupts are enabled when the I bit is cleared to 0, and disabled when set to 1. Figure 5.5 shows a flowchart of the interrupt acceptance operation in this case. [1] If an interrupt source occurs when the corresponding interrupt enable bit is set to 1, an interrupt request is sent to the interrupt controller. [2] The I bit is then referenced. If the I bit is cleared to 0, the interrupt request is accepted. If the I bit is set to 1, only an NMI interrupt is accepted, and other interrupt requests are held pending. [3] Interrupt requests are sent to the interrupt controller, the highest-ranked interrupt according to the priority system is accepted, and other interrupt requests are held pending. [4] When an interrupt request is accepted, interrupt exception handling starts after execution of the current instruction has been completed. [5] The PC and CCR are saved to the stack area by interrupt exception handling. The PC saved on the stack shows the address of the first instruction to be executed after returning from the interrupt handling routine. [6] Next, the I bit in CCR is set to 1. This masks all interrupts except NMI. [7] A vector address is generated for the accepted interrupt, and execution of the interrupt handling routine starts at the address indicated by the contents of that vector address. Page 116 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller Program execution status No Interrupt generated? Yes Yes NMI No No I=0 Hold pending Yes IRQ0 Yes No IRQ1 No Yes RM0 (HCAN) Yes Save PC and CCR I1 Read vector address Branch to interrupt handling routine Figure 5.5 Flowchart of Procedure Up to Interrupt Acceptance in Interrupt Control Mode 0 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 117 of 1126 Section 5 Interrupt Controller 5.4.3 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Interrupt Control Mode 2 Eight-level masking is implemented for IRQ interrupts and on-chip supporting module interrupts by comparing the interrupt mask level set by bits I2 to I0 of EXR in the CPU with IPR. Figure 5.6 shows a flowchart of the interrupt acceptance operation in this case. [1] If an interrupt source occurs when the corresponding interrupt enable bit is set to 1, an interrupt request is sent to the interrupt controller. [2] When interrupt requests are sent to the interrupt controller, the interrupt with the highest priority according to the interrupt priority levels set in IPR is selected, and lower-priority interrupt requests are held pending. If a number of interrupt requests with the same priority are generated at the same time, the interrupt request with the highest priority according to the priority system shown in table 5.4 is selected. [3] Next, the priority of the selected interrupt request is compared with the interrupt mask level set in EXR. An interrupt request with a priority no higher than the mask level set at that time is held pending, and only an interrupt request with a priority higher than the interrupt mask level is accepted. [4] When an interrupt request is accepted, interrupt exception handling starts after execution of the current instruction has been completed. [5] The PC, CCR, and EXR are saved to the stack area by interrupt exception handling. The PC saved on the stack shows the address of the first instruction to be executed after returning from the interrupt handling routine. [6] The T bit in EXR is cleared to 0. The interrupt mask level is rewritten with the priority level of the accepted interrupt. If the accepted interrupt is NMI, the interrupt mask level is set to H'7. [7] A vector address is generated for the accepted interrupt, and execution of the interrupt handling routine starts at the address indicated by the contents of that vector address. Page 118 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller Program execution status Interrupt generated? No Yes Yes NMI No Level 7 interrupt? No Yes Mask level 6 or below? Yes Level 6 interrupt? No No Yes Mask level 5 or below? Level 1 interrupt? No No Yes Yes Mask level 0? No Yes Save PC, CCR, and EXR Hold pending Clear T bit to 0 Update mask level Read vector address Branch to interrupt handling routine Figure 5.6 Flowchart of Procedure Up to Interrupt Acceptance in Interrupt Control Mode 2 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 119 of 1126 Page 120 of 1126 (1) (2) (4) (3) Internal operation Instruction prefetch address (Not executed. This is the contents of the saved PC, the return address.) (2) (4) Instruction code (Not executed.) (3) Instruction prefetch address (Not executed.) (5) SP-2 (7) SP-4 (1) Internal data us Internal write signal Internal read signal Internal address bus Interrupt request signal Instruction prefetch (5) (7) (8) (9) (10) Vector fetch (12) (11) Internal operation (14) (13) Interrupt service routine instruction prefetch (6) (8) Saved PC and saved CCR (9) (11) Vector address (10) (12) Interrupt handling routine start address (vector address contents) (13) Interrupt handling routine start address ((13) = (10) (12)) (14) First instruction of interrupt handling routine (6) Stack 5.4.4 Interrupt level determination Wait for end of instruction Interrupt acceptance Section 5 Interrupt Controller H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Interrupt Exception Handling Sequence Figure 5.7 shows the interrupt exception handling sequence. The example shown is for the case where interrupt control mode 0 is set in advanced mode, and the program area and stack area are in on-chip memory. Figure 5.7 Interrupt Exception Handling REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 5.4.5 Section 5 Interrupt Controller Interrupt Response Times The H8S/2646 Group is capable of fast word transfer instruction to on-chip memory, and the program area is provided in on-chip ROM and the stack area in on-chip RAM, enabling highspeed processing. Table 5.9 shows interrupt response times - the interval between generation of an interrupt request and execution of the first instruction in the interrupt handling routine. The execution status symbols used in table 5.9 are explained in table 5.10. Table 5.9 Interrupt Response Times Normal Mode* 5 No. Execution Status 1 Interrupt priority determination* 2 Advanced Mode INTM1 = 0 INTM1 = 1 INTM1 = 0 INTM1 = 1 3 3 3 3 Number of wait states until executing 1 to 2 instruction ends* (19+2*SI) 1 to (19+2*SI) 1 to (19+2*SI) 1 to (19+2*SI) 3 PC, CCR, EXR stack save 2*SK 3*SK 2*SK 3*SK 4 Vector fetch SI SI 2*SI 2*SI 5 Instruction fetch* 2*SI 2*SI 2*SI 2*SI 6 Internal processing* 2 2 2 2 11 to 31 12 to 32 12 to 32 13 to 33 3 4 Total (using on-chip memory) Notes: 1. 2. 3. 4. 5. Two states in case of internal interrupt. Refers to MULXS and DIVXS instructions. Prefetch after interrupt acceptance and interrupt handling routine prefetch. Internal processing after interrupt acceptance and internal processing after vector fetch. Not available in the H8S/2646 Group. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 1 Page 121 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller Table 5.10 Number of States in Interrupt Handling Routine Execution Statuses Object of Access External Device 8-Bit Bus Symbol Instruction fetch SI Branch address read SJ Stack manipulation SK 16-Bit Bus Internal Memory 2-State Access 3-State Access 2-State Access 3-State Access 1 4 6+2m 2 3+m Legend: m: Number of wait states in an external device access. 5.5 Usage Notes 5.5.1 Contention between Interrupt Generation and Disabling When an interrupt enable bit is cleared to 0 to disable interrupts, the disabling becomes effective after execution of the instruction. In other words, when an interrupt enable bit is cleared to 0 by an instruction such as BCLR or MOV, if an interrupt is generated during execution of the instruction, the interrupt concerned will still be enabled on completion of the instruction, and so interrupt exception handling for that interrupt will be executed on completion of the instruction. However, if there is an interrupt request of higher priority than that interrupt, interrupt exception handling will be executed for the higher-priority interrupt, and the lower-priority interrupt will be ignored. The same also applies when an interrupt source flag is cleared to 0. Figure 5.8 shows an example in which the TCIEV bit in the TPU's TIER0 register is cleared to 0. Page 122 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller TIER0 write cycle by CPU TCIV exception handling Internal address bus TIER0 address Internal write signal TCIEV TCFV TCIV interrupt signal Figure 5.8 Contention between Interrupt Generation and Disabling The above contention will not occur if an enable bit or interrupt source flag is cleared to 0 while the interrupt is masked. 5.5.2 Instructions that Disable Interrupts Instructions that disable interrupts are LDC, ANDC, ORC, and XORC. After any of these instructions is executed, all interrupts including NMI are disabled and the next instruction is always executed. When the I bit is set by one of these instructions, the new value becomes valid two states after execution of the instruction ends. 5.5.3 Times when Interrupts Are Disabled There are times when interrupt acceptance is disabled by the interrupt controller. The interrupt controller disables interrupt acceptance for a 3-state period after the CPU has updated the mask level with an LDC, ANDC, ORC, or XORC instruction. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 123 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller 5.5.4 Interrupts during Execution of EEPMOV Instruction Interrupt operation differs between the EEPMOV.B instruction and the EEPMOV.W instruction. With the EEPMOV.B instruction, an interrupt request (including NMI) issued during the transfer is not accepted until the move is completed. With the EEPMOV.W instruction, if an interrupt request is issued during the transfer, interrupt exception handling starts at a break in the transfer cycle. The PC value saved on the stack in this case is the address of the next instruction. Therefore, if an interrupt is generated during execution of an EEPMOV.W instruction, the following coding should be used. L1: 5.5.5 EEPMOV.W MOV.W R4,R4 BNE L1 IRQ Interrupts When operating by clock input, acceptance of input to an IRQ pin is synchronized with the clock. In software standby mode, the input is accepted asynchronously. For details on the input conditions, see section 23.4.2, Control Signal Timing. 5.6 DTC Activation by Interrupt 5.6.1 Overview The DTC can be activated by an interrupt. In this case, the following options are available: * Interrupt request to CPU * Activation request to DTC * Selection of a number of the above For details of interrupt requests that can be used with to activate the DTC, see section 8, Data Transfer Controller (DTC). Page 124 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 5.6.2 Section 5 Interrupt Controller Block Diagram Figure 5.9 shows a block diagram of the DTC interrupt controller. Interrupt request IRQ interrupt On-chip supporting module Interrupt source clear signal DTC activation request vector number Selection circuit Select signal Clear signal DTCER Control logic DTC Clear signal DTVECR SWDTE clear signal Determination of priority CPU interrupt request vector number CPU I, I2 to I0 Interrupt controller Figure 5.9 Interrupt Control for DTC 5.6.3 Operation The interrupt controller has three main functions in DTC control. Selection of Interrupt Source: Interrupt factors are selected as DTC activation request or CPU interrupt request by the DTCE bit of DTCERA to DTCERG, and DTCERI of DTC. By specifying the DISEL bit of the DTC's MRB, it is possible to clear the DTCE bit to 0 after DTC data transfer, and request a CPU interrupt. If DTC carries out the designate number of data transfers and the transfer counter reads 0, after DTC data transfer, the DTCE bit is also cleared to 0, and a CPU interrupt requested. Determination of Priority: The DTC activation source is selected in accordance with the default priority order, and is not affected by mask or priority levels. See section 8.3.3, DTC Vector Table for the respective priority. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 125 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 5 Interrupt Controller Operation Order: If the same interrupt is selected as a DTC activation source and a CPU interrupt source, the DTC data transfer is performed first, followed by CPU interrupt exception handling. Table 5.11 shows the interrupt factor clear control and selection of interrupt factors by specification of the DTCE bit of DTCERA to DTCERG, DTCERI of DTC, and the DISEL bit of DTC's MRB. Table 5.11 Interrupt Source Selection and Clearing Control Settings DTC Interrupt Source Selection/Clearing Control DTCE DISEL DTC CPU 0 * X 1 0 X 1 Legend: : The relevant interrupt is used. Interrupt source clearing is performed. (The CPU should clear the source flag in the interrupt handling routine.) : The relevant interrupt is used. The interrupt source is not cleared. X : The relevant bit cannot be used. * : Don't care Notes on Use: SCI and A/D converter interrupt sources are cleared when the DTC reads or writes to the prescribed register. Page 126 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 6 PC Break Controller (PBC) Section 6 PC Break Controller (PBC) 6.1 Overview The PC break controller (PBC) provides functions that simplify program debugging. Using these functions, it is easy to create a self-monitoring debugger, enabling programs to be debugged with the chip alone, without using an in-circuit emulator. Four break conditions can be set in the PBC: instruction fetch, data read, data write, and data read/write. 6.1.1 Features The PC break controller has the following features: * Two break channels (A and B) * The following can be set as break compare conditions: 24 address bits Bit masking possible Bus cycle Instruction fetch Data access: data read, data write, data read/write Bus master Either CPU or CPU/DTC can be selected * The timing of PC break exception handling after the occurrence of a break condition is as follows: Immediately before execution of the instruction fetched at the set address (instruction fetch) Immediately after execution of the instruction that accesses data at the set address (data access) * Module stop mode can be set The initial setting is for PBC operation to be halted. Register access is enabled by clearing module stop mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 127 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 6 PC Break Controller (PBC) 6.1.2 Block Diagram Figure 6.1 shows a block diagram of the PC break controller. BARA Mask control Output control BCRA Control logic Comparator Match signal Internal address Control logic Comparator Match signal Mask control BARB Output control Access status PC break interrupt BCRB Figure 6.1 Block Diagram of PC Break Controller Page 128 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 6.1.3 Section 6 PC Break Controller (PBC) Register Configuration Table 6.1 shows the PC break controller registers. Table 6.1 PC Break Controller Registers Initial Value Name Abbreviation R/W Reset Address* Break address register A BARA R/W H'XX000000 H'FE00 Break address register B BARB R/W H'XX000000 H'FE04 Break control register A BCRA H'00 H'FE08 Break control register B BCRB R/(W)* 2 R/(W)* H'00 H'FE09 Module stop control register C MSTPCRC R/W H'FF H'FDEA 2 1 Notes: 1. Lower 16 bits of the address. 2. Only a 0 may be written to this bit to clear the flag. 6.2 Register Descriptions 6.2.1 Break Address Register A (BARA) Bit 31 *** 24 -- *** -- Initial value Undefined -- Read/Write *** *** 23 22 21 20 19 18 17 16 BAA BAA BAA BAA BAA BAA BAA BAA 23 22 21 20 19 18 17 16 Unde- 0 0 0 0 0 0 0 0 fined -- R/W R/W R/W R/W R/W R/W R/W R/W *** *** *** *** 7 6 5 4 3 2 1 0 BAA BAA BAA BAA BAA BAA BAA BAA 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W BARA is a 32-bit readable/writable register that specifies the channel A break address. BAA23 to BAA0 are initialized to H'000000 by a reset and in hardware standby mode. Bits 31 to 24--Reserved: These bits return an undefined value if read, and cannot be modified. Bits 23 to 0--Break Address A23 to A0 (BAA23 to BAA0): These bits hold the channel A PC break address. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 129 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 6 PC Break Controller (PBC) 6.2.2 Break Address Register B (BARB) BARB is the channel B break address register. The bit configuration is the same as for BARA. 6.2.3 Break Control Register A (BCRA) 7 6 CMFA CDA Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/W R/W R/W R/W R/W R/W R/W Bit 5 4 3 2 1 BAMRA2 BAMRA1 BAMRA0 CSELA1 CSELA0 0 BIEA Note: * Only a 0 may be written to this bit to clear the flag. BCRA is an 8-bit readable/writable register that controls channel A PC breaks. BCRA (1) selects the break condition bus master, (2) specifies bits subject to address comparison masking, and (3) specifies whether the break condition is applied to an instruction fetch or a data access. It also contains a condition match flag. BCRA is initialized to H'00 by a reset and in hardware standby mode. Bit 7--Condition Match Flag A (CMFA): Set to 1 when a break condition set for channel A is satisfied. This flag is not cleared to 0. Bit 7 CMFA Description 0 [Clearing condition] When 0 is written to CMFA after reading CMFA = 1 1 (Initial value) [Setting condition] When a condition set for channel A is satisfied Bit 6--CPU Cycle/DTC Cycle Select A (CDA): Selects the channel A break condition bus master. Bit 6 CDA Description 0 PC break is performed when CPU is bus master 1 PC break is performed when CPU or DTC is bus master Page 130 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 6 PC Break Controller (PBC) Bits 5 to 3--Break Address Mask Register A2 to A0 (BAMRA2 to BAMRA0): These bits specify which bits of the break address (BAA23 to BAA0) set in BARA are to be masked. Bit 5 Bit 4 Bit 3 BAMRA2 BAMRA1 BAMRA0 Description 0 0 1 1 0 1 0 All BARA bits are unmasked and included in break conditions (Initial value) 1 BAA0 (lowest bit) is masked, and not included in break conditions 0 BAA1, BAA0 (lower 2 bits) are masked, and not included in break conditions 1 BAA2 to BAA0 (lower 3 bits) are masked, and not included in break conditions 0 BAA3 to BAA0 (lower 4 bits) are masked, and not included in break conditions 1 BAA7 to BAA0 (lower 8 bits) are masked, and not included in break conditions 0 BAA11 to BAA0 (lower 12 bits) are masked, and not included in break conditions 1 BAA15 to BAA0 (lower 16 bits) are masked, and not included in break conditions Bits 2 and 1--Break Condition Select A (CSELA1, CSELA0): These bits selection an instruction fetch, data read, data write, or data read/write cycle as the channel A break condition. Bit 2 CSELA1 Bit 1 CSELA0 Description 0 0 Instruction fetch is used as break condition 1 Data read cycle is used as break condition 0 Data write cycle is used as break condition 1 Data read/write cycle is used as break condition 1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 131 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 6 PC Break Controller (PBC) Bit 0--Break Interrupt Enable A (BIEA): Enables or disables channel A PC break interrupts. Bit 0 BIEA Description 0 PC break interrupts are disabled 1 PC break interrupts are enabled 6.2.4 (Initial value) Break Control Register B (BCRB) BCRB is the channel B break control register. The bit configuration is the same as for BCRA. 6.2.5 Module Stop Control Register C (MSTPCRC) Bit 7 6 5 4 3 2 1 0 MSTPC7 MSTPC6 MSTPC5 MSTPC4 MSTPC3 MSTPC2 MSTPC1 MSTPC0 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W MSTPCRC is an 8-bit readable/writable register that performs module stop mode control. When the MSTPC4 bit is set to 1, PC break controller operation is stopped at the end of the bus cycle, and module stop mode is entered. Register read/write accesses are not possible in module stop mode. For details, see section 22.5, Module Stop Mode. MSTPCRC is initialized to H'FF by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 4--Module Stop (MSTPC4): Specifies the PC break controller module stop mode. Bit 4 MSTPC4 Description 0 PC break controller module stop mode is cleared 1 PC break controller module stop mode is set Page 132 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 6.3 Section 6 PC Break Controller (PBC) Operation The operation flow from break condition setting to PC break interrupt exception handling is shown in sections 6.3.1, PC Break Interrupt Due to Instruction Fetch, and 6.3.2, PC Break Interrupt Due to Data Access, taking the example of channel A. 6.3.1 PC Break Interrupt Due to Instruction Fetch 1. Initial settings Set the break address in BARA. For a PC break caused by an instruction fetch, set the address of the first instruction byte as the break address. Set the break conditions in BCRA. BCRA bit 6 (CDA): With a PC break caused by an instruction fetch, the bus master must be the CPU. Set 0 to select the CPU. BCRA bits 5 to 3 (BAMA2 to BAMA0): Set the address bits to be masked. BCRA bits 2, 1 (CSELA1, CSELA0): Set 00 to specify an instruction fetch as the break condition. BCRA bit 0 (BIEA): Set to 1 to enable break interrupts. 2. Satisfaction of break condition When the instruction at the set address is fetched, a PC break request is generated immediately before execution of the fetched instruction, and the condition match flag (CMFA) is set. 3. Interrupt handling After priority determination by the interrupt controller, PC break interrupt exception handling is started. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 133 of 1126 Section 6 PC Break Controller (PBC) 6.3.2 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM PC Break Interrupt Due to Data Access 1. Initial settings Set the break address in BARA. For a PC break caused by a data access, set the target ROM, RAM, I/O, or external address space address as the break address. Stack operations and branch address reads are included in data accesses. Set the break conditions in BCRA. BCRA bit 6 (CDA): Select the bus master. BCRA bits 5 to 3 (BAMA2 to BAMA0): Set the address bits to be masked. BCRA bits 2, 1 (CSELA1, CSELA0): Set 01, 10, or 11 to specify data access as the break condition. BCRA bit 0 (BIEA): Set to 1 to enable break interrupts. 2. Satisfaction of break condition After execution of the instruction that performs a data access on the set address, a PC break request is generated and the condition match flag (CMFA) is set. 3. Interrupt handling After priority determination by the interrupt controller, PC break interrupt exception handling is started. 6.3.3 Notes on PC Break Interrupt Handling 1. The PC break interrupt is shared by channels A and B. The channel from which the request was issued must be determined by the interrupt handler. 2. The CMFA and CMFB flags are not cleared to 0, so 0 must be written to CMFA or CMFB after first reading the flag while it is set to 1. If the flag is left set to 1, another interrupt will be requested after interrupt handling ends. 3. A PC break interrupt generated when the DTC is the bus master is accepted after the bus has been transferred to the CPU by the bus controller. Page 134 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 6.3.4 Section 6 PC Break Controller (PBC) Operation in Transitions to Power-Down Modes The operation when a PC break interrupt is set for an instruction fetch at the address after a SLEEP instruction is shown below. 1. When the SLEEP instruction causes a transition from high-speed (medium-speed) mode to sleep mode, or from subactive mode to subsleep mode: After execution of the SLEEP instruction, a transition is not made to sleep mode or subsleep mode, and PC break interrupt handling is executed. After execution of PC break interrupt handling, the instruction at the address after the SLEEP instruction is executed (figure 6.2 (A)). 2. When the SLEEP instruction causes a transition from high-speed (medium-speed) mode to subactive mode: After execution of the SLEEP instruction, a transition is made to subactive mode via direct transition exception handling. After the transition, PC break interrupt handling is executed, then the instruction at the address after the SLEEP instruction is executed (figure 6.2 (B)). 3. When the SLEEP instruction causes a transition from subactive mode to high-speed (mediumspeed) mode: After execution of the SLEEP instruction, and following the clock oscillation settling time, a transition is made to high-speed (medium-speed) mode via direct transition exception handling. After the transition, PC break interrupt handling is executed, then the instruction at the address after the SLEEP instruction is executed (figure 6.2 (C)). 4. When the SLEEP instruction causes a transition to software standby mode or watch mode: After execution of the SLEEP instruction, a transition is made to the respective mode, and PC break interrupt handling is not executed. However, the CMFA or CMFB flag is set (figure 6.2 (D)). REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 135 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 6 PC Break Controller (PBC) SLEEP instruction execution SLEEP instruction execution SLEEP instruction execution SLEEP instruction execution PC break exception handling System clock subclock Subclock system clock, oscillation settling time Transition to respective mode Execution of instruction after sleep instruction Direct transition exception handling Direct transition exception handling (D) (A) PC break exception handling Subactive mode PC break exception handling Execution of instruction after sleep instruction Execution of instruction after sleep instruction (B) (C) High-speed (medium-speed) mode Figure 6.2 Operation in Power-Down Mode Transitions 6.3.5 PC Break Operation in Continuous Data Transfer If a PC break interrupt is generated when the following operations are being performed, exception handling is executed on completion of the specified transfer. 1. When a PC break interrupt is generated at the transfer address of an EEPMOV.B instruction: PC break exception handling is executed after all data transfers have been completed and the EEPMOV.B instruction has ended. 2. When a PC break interrupt is generated at a DTC transfer address: PC break exception handling is executed after the DTC has completed the specified number of data transfers, or after data for which the DISEL bit is set to 1 has been transferred. Page 136 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 6.3.6 Section 6 PC Break Controller (PBC) When Instruction Execution Is Delayed by One State Caution is required in the following cases, as instruction execution is one state later than usual. 1. When the PBC is enabled (i.e. when the break interrupt enable bit is set to 1), execution of a one-word branch instruction (Bcc d:8, BSR, JSR, JMP, TRAPA, RTE, or RTS) located in onchip ROM or RAM is always delayed by one state. 2. When break interruption by instruction fetch is set, the set address indicates on-chip ROM or RAM space, and that address is used for data access, the instruction that executes the data access is one state later than in normal operation. 3. When break interruption by instruction fetch is set and a break interrupt is generated, if the executing instruction immediately preceding the set instruction has one of the addressing modes shown below, and that address indicates on-chip ROM or RAM, and that address is used for data access, the instruction will be one state later than in normal operation. @ERn, @(d:16,ERn), @(d:32,ERn), @-ERn/ERn+, @aa:8, @aa:24, @aa:32, @(d:8,PC), @(d:16,PC), @@aa:8 4. When break interruption by instruction fetch is set and a break interrupt is generated, if the executing instruction immediately preceding the set instruction is NOP or SLEEP, or has #xx,Rn as its addressing mode, and that instruction is located in on-chip ROM or RAM, the instruction will be one state later than in normal operation. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 137 of 1126 Section 6 PC Break Controller (PBC) 6.3.7 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Additional Notes 1. When a PC break is set for an instruction fetch at the address following a BSR, JSR, JMP, TRAPA, RTE, or RTS instruction: Even if the instruction at the address following a BSR, JSR, JMP, TRAPA, RTE, or RTS instruction is fetched, it is not executed, and so a PC break interrupt is not generated by the instruction fetch at the next address. 2. When the I bit is set by an LDC, ANDC, ORC, or XORC instruction, a PC break interrupt becomes valid two states after the end of the executing instruction. If a PC break interrupt is set for the instruction following one of these instructions, since interrupts, including NMI, are disabled for a 3-state period in the case of LDC, ANDC, ORC, and XORC, the next instruction is always executed. For details, see section 5, Interrupt Controller. 3. When a PC break is set for an instruction fetch at the address following a Bcc instruction: A PC break interrupt is generated if the instruction at the next address is executed in accordance with the branch condition, but is not generated if the instruction at the next address is not executed. 4. When a PC break is set for an instruction fetch at the branch destination address of a Bcc instruction: A PC break interrupt is generated if the instruction at the branch destination is executed in accordance with the branch condition, but is not generated if the instruction at the branch destination is not executed. Page 138 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller Section 7 Bus Controller 7.1 Overview The H8S/2646 Group has a built-in bus controller (BSC) that manages the external address space divided into eight areas. The bus specifications, such as bus width and number of access states, can be set independently for each area, enabling multiple memories to be connected easily. The bus controller also has a bus arbitration function, and controls the operation of the internal bus masters: the CPU, and data transfer controller (DTC). 7.1.1 Features The features of the bus controller are listed below. * Manages external address space in area units Manages the external space as 8 areas of 2-Mbytes Bus specifications can be set independently for each area Burst ROM interface can be set * Basic bus interface 8-bit access or 16-bit access can be selected for each area 2-state access or 3-state access can be selected for each area Program wait states can be inserted for each area * Burst ROM interface Burst ROM interface can be set for area 0 Choice of 1- or 2-state burst access * Idle cycle insertion An idle cycle can be inserted in case of an external read cycle between different areas An idle cycle can be inserted in case of an external write cycle immediately after an external read cycle * Write buffer functions External write cycle and internal access can be executed in parallel * Bus arbitration function Includes a bus arbiter that arbitrates bus mastership among the CPU and DTC * Other External bus release function REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 139 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller 7.1.2 Block Diagram Figure 7.1 shows a block diagram of the bus controller. Internal address bus Area decoder ABWCR External bus control signals ASTCR BCRH Bus controller Wait controller WAIT Internal data bus BCRL Internal control signals Bus mode signal WCRH WCRL CPU bus request signal DTC bus request signal Bus arbiter CPU bus acknowledge signal DTC bus acknowledge signal Legend: ABWCR ASTCR BCRH BCRL WCRH WCRL : : : : : : Bus width control register Access state control register Bus control register H Bus control register L Wait control register H Wait control register L Figure 7.1 Block Diagram of Bus Controller Page 140 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 7.1.3 Section 7 Bus Controller Pin Configuration Table 7.1 summarizes the pins of the bus controller. Table 7.1 Bus Controller Pins Name Symbol I/O Function Address strobe AS Output Strobe signal indicating that address output on address bus is enabled. Read RD Output Strobe signal indicating that external space is being read. High write HWR Output Strobe signal indicating that external space is to be written, and upper half (D15 to D8) of data bus is enabled. Low write LWR Output Strobe signal indicating that external space is to be written, and lower half (D7 to D0) of data bus is enabled. Wait WAIT Input Wait request signal used when accessing external 3-state access space. 7.1.4 Register Configuration Table 7.2 summarizes the registers of the bus controller. Table 7.2 Bus Controller Registers Name Abbreviation R/W Initial Value 1 Address* Bus width control register ABWCR R/W H'FF/H'00* Access state control register ASTCR R/W H'FF H'FED1 Wait control register H WCRH R/W H'FF H'FED2 Wait control register L WCRL R/W H'FF H'FED3 Bus control register H BCRH R/W H'D0 H'FED4 Bus control register L BCRL R/W H'08 H'FED5 Pin function control register PFCR R/W H'0D/H'00 H'FDEB 2 H'FED0 Notes: 1. Lower 16 bits of the address. 2. Determined by the MCU operating mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 141 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller 7.2 Register Descriptions 7.2.1 Bus Width Control Register (ABWCR) Bit : Modes 5 to 7 Initial value : RW : 7 6 5 4 3 2 1 0 ABW7 ABW6 ABW5 ABW4 ABW3 ABW2 ABW1 ABW0 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W Mode 4 Initial value : RW : ABWCR is an 8-bit readable/writable register that designates each area for either 8-bit access or 16-bit access. ABWCR sets the data bus width for the external memory space. The bus width for on-chip memory and internal I/O registers is fixed regardless of the settings in ABWCR. After a reset and in hardware standby mode, ABWCR is initialized to H'FF in modes 5, 6, 7, and to H'00 in mode 4. It is not initialized in software standby mode. Bits 7 to 0--Area 7 to 0 Bus Width Control (ABW7 to ABW0): These bits select whether the corresponding area is to be designated for 8-bit access or 16-bit access. Bit n ABWn Description 0 Area n is designated for 16-bit access 1 Area n is designated for 8-bit access (n = 7 to 0) Page 142 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 7.2.2 Section 7 Bus Controller Access State Control Register (ASTCR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 AST7 AST6 AST5 AST4 AST3 AST2 AST1 AST0 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W ASTCR is an 8-bit readable/writable register that designates each area as either a 2-state access space or a 3-state access space. ASTCR sets the number of access states for the external memory space. The number of access states for on-chip memory and internal I/O registers is fixed regardless of the settings in ASTCR. ASTCR is initialized to H'FF by a reset and in hardware standby mode. It is not initialized in software standby mode. Bits 7 to 0--Area 7 to 0 Access State Control (AST7 to AST0): These bits select whether the corresponding area is to be designated as a 2-state access space or a 3-state access space. Wait state insertion is enabled or disabled at the same time. Bit n ASTn Description 0 Area n is designated for 2-state access Wait state insertion in area n external space is disabled 1 Area n is designated for 3-state access Wait state insertion in area n external space is enabled (Initial value) (n = 7 to 0) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 143 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller 7.2.3 Wait Control Registers H and L (WCRH, WCRL) WCRH and WCRL are 8-bit readable/writable registers that select the number of program wait states for each area. Program waits are not inserted in the case of on-chip memory or internal I/O registers. WCRH and WCRL are initialized to H'FF by a reset and in hardware standby mode. They are not initialized in software standby mode. WCRH Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 W71 W70 W61 W60 W51 W50 W41 W40 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W Bits 7 and 6--Area 7 Wait Control 1 and 0 (W71, W70): These bits select the number of program wait states when area 7 in external space is accessed while the AST7 bit in ASTCR is set to 1. Bit 7 W71 Bit 6 W70 Description 0 0 Program wait not inserted when external space area 7 is accessed 1 1 program wait state inserted when external space area 7 is accessed 0 2 program wait states inserted when external space area 7 is accessed 1 3 program wait states inserted when external space area 7 is accessed (Initial value) Page 144 of 1126 REJ09B0257-0700 Rev. 7.00 1 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller Bits 5 and 4--Area 6 Wait Control 1 and 0 (W61, W60): These bits select the number of program wait states when area 6 in external space is accessed while the AST6 bit in ASTCR is set to 1. Bit 5 W61 Bit 4 W60 Description 0 0 Program wait not inserted when external space area 6 is accessed 1 1 program wait state inserted when external space area 6 is accessed 0 2 program wait states inserted when external space area 6 is accessed 1 3 program wait states inserted when external space area 6 is accessed (Initial value) 1 Bits 3 and 2--Area 5 Wait Control 1 and 0 (W51, W50): These bits select the number of program wait states when area 5 in external space is accessed while the AST5 bit in ASTCR is set to 1. Bit 3 W51 Bit 2 W50 Description 0 0 Program wait not inserted when external space area 5 is accessed 1 1 program wait state inserted when external space area 5 is accessed 0 2 program wait states inserted when external space area 5 is accessed 1 3 program wait states inserted when external space area 5 is accessed (Initial value) 1 Bits 1 and 0--Area 4 Wait Control 1 and 0 (W41, W40): These bits select the number of program wait states when area 4 in external space is accessed while the AST4 bit in ASTCR is set to 1. Bit 1 W41 Bit 0 W40 Description 0 0 Program wait not inserted when external space area 4 is accessed 1 1 program wait state inserted when external space area 4 is accessed 0 2 program wait states inserted when external space area 4 is accessed 1 3 program wait states inserted when external space area 4 is accessed (Initial value) 1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 145 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller WCRL Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 W31 W30 W21 W20 W11 W10 W01 W00 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W Bits 7 and 6--Area 3 Wait Control 1 and 0 (W31, W30): These bits select the number of program wait states when area 3 in external space is accessed while the AST3 bit in ASTCR is set to 1. Bit 7 W31 Bit 6 W30 Description 0 0 Program wait not inserted when external space area 3 is accessed 1 1 program wait state inserted when external space area 3 is accessed 0 2 program wait states inserted when external space area 3 is accessed 1 3 program wait states inserted when external space area 3 is accessed (Initial value) 1 Bits 5 and 4--Area 2 Wait Control 1 and 0 (W21, W20): These bits select the number of program wait states when area 2 in external space is accessed while the AST2 bit in ASTCR is set to 1. Bit 5 W21 Bit 4 W20 Description 0 0 Program wait not inserted when external space area 2 is accessed 1 1 program wait state inserted when external space area 2 is accessed 0 2 program wait states inserted when external space area 2 is accessed 1 3 program wait states inserted when external space area 2 is accessed (Initial value) Page 146 of 1126 REJ09B0257-0700 Rev. 7.00 1 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller Bits 3 and 2--Area 1 Wait Control 1 and 0 (W11, W10): These bits select the number of program wait states when area 1 in external space is accessed while the AST1 bit in ASTCR is set to 1. Bit 3 W11 Bit 2 W10 Description 0 0 Program wait not inserted when external space area 1 is accessed 1 1 program wait state inserted when external space area 1 is accessed 0 2 program wait states inserted when external space area 1 is accessed 1 3 program wait states inserted when external space area 1 is accessed (Initial value) 1 Bits 1 and 0--Area 0 Wait Control 1 and 0 (W01, W00): These bits select the number of program wait states when area 0 in external space is accessed while the AST0 bit in ASTCR is set to 1. Bit 1 W01 Bit 0 W00 Description 0 0 Program wait not inserted when external space area 0 is accessed 1 1 program wait state inserted when external space area 0 is accessed 0 2 program wait states inserted when external space area 0 is accessed 1 3 program wait states inserted when external space area 0 is accessed (Initial value) 1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 147 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller 7.2.4 Bus Control Register H (BCRH) Bit : Initial value : R/W : 7 6 ICIS1 ICIS0 5 4 3 BRSTRM BRSTS1 BRSTS0 2 1 0 -- -- -- 1 1 0 1 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W BCRH is an 8-bit readable/writable register that selects enabling or disabling of idle cycle insertion, and the memory interface for area 0. BCRH is initialized to H'D0 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 7--Idle Cycle Insert 1 (ICIS1): Selects whether or not one idle cycle state is to be inserted between bus cycles when successive external read cycles are performed in different areas. Bit 7 ICIS1 Description 0 Idle cycle not inserted in case of successive external read cycles in different areas 1 Idle cycle inserted in case of successive external read cycles in different areas (Initial value) Bit 6--Idle Cycle Insert 0 (ICIS0): Selects whether or not one idle cycle state is to be inserted between bus cycles when successive external read and external write cycles are performed . Bit 6 ICIS0 Description 0 Idle cycle not inserted in case of successive external read and external write cycles 1 Idle cycle inserted in case of successive external read and external write cycles (Initial value) Page 148 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller Bit 5--Burst ROM Enable (BRSTRM): Selects whether area 0 is used as a burst ROM interface. Bit 5 BRSTRM Description 0 Area 0 is basic bus interface 1 Area 0 is burst ROM interface (Initial value) Bit 4--Burst Cycle Select 1 (BRSTS1): Selects the number of burst cycles for the burst ROM interface. Bit 4 BRSTS1 Description 0 Burst cycle comprises 1 state 1 Burst cycle comprises 2 states (Initial value) Bit 3--Burst Cycle Select 0 (BRSTS0): Selects the number of words that can be accessed in a burst ROM interface burst access. Bit 3 BRSTS0 Description 0 Max. 4 words in burst access 1 Max. 8 words in burst access (Initial value) Bits 2 to 0--Reserved: Only 0 should be written to these bits. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 149 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller 7.2.5 Bit Bus Control Register L (BCRL) : Initial value : R/W : 7 6 5 4 3 2 1 0 -- -- -- -- -- -- WDBE WAITE 0 0 0 0 1 0 0 0 R/W R/W -- R/W R/W R/W R/W R/W BCRL is an 8-bit readable/writable register that performs selection of the external bus-released state protocol, enabling or disabling of the write data buffer function, and enabling or disabling of wait input by WAIT pin. BCRL is initialized to H'08 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bits 7 and 6--Reserved: Only 0 should be written to these bits. Bit 5--Reserved: It is always read as 0. Cannot be written to. Bit 4--Reserved: Only 0 should be written to this bit. Bit 3--Reserved: Only 1 should be written to this bit. Bit 2--Reserved: Only 0 should be written to this bit. Bit 1--Write Data Buffer Enable (WDBE): This bit selects whether or not to use the write buffer function in the external write cycle. Bit 1 WDBE Description 0 Write data buffer function not used 1 Write data buffer function used (Initial value) Bit 0--WAIT Pin Enable (WAITE): Selects enabling or disabling of wait input by means of the WAIT pin. Bit 0 WAITE Description 0 Wait input by WAIT pin disabled. WAIT pin can be used as I/O port. 1 Wait input by WAIT pin enabled Page 150 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 7.2.6 Section 7 Bus Controller Pin Function Control Register (PFCR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 -- -- -- -- AE3 AE2 AE1 AE0 0 0 0 0 1/0 1/0 0 1/0 R/W R/W R/W R/W R/W R/W R/W R/W PFCR is an 8-bit read/write register that controls the address output in expanded mode with ROM. PFCR is initialized to H'0D/H'00 by a reset and in hardware standby mode. It retains its previous state in software standby mode. Bits 7 to 4--Reserved: Only 0 should be written to these bits. Bits 3 to 0--Address Output Enable 3 to 0 (AE3 to AE0): These bits select enabling or disabling of address outputs A8 to A23 in ROMless expanded mode and modes with ROM. When a pin is enabled for address output, the address is output regardless of the corresponding DDR setting. When a pin is disabled for address output, it becomes an output port when the corresponding DDR bit is set to 1. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 151 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller Bit 3 AE3 Bit 2 AE2 Bit 1 AE1 Bit 0 AE0 Description 0 0 0 0 A8 to A23 address output disabled 1 A8 address output enabled; A9 to A23 address output disabled 0 A8, A9 address output enabled; A10 to A23 address output disabled 1 A8 to A10 address output enabled; A11 to A23 address output disabled 0 A8 to A11 address output enabled; A12 to A23 address output disabled 1 A8 to A12 address output enabled; A13 to A23 address output disabled 0 A8 to A13 address output enabled; A14 to A23 address output disabled 1 A8 to A14 address output enabled; A15 to A23 address output disabled 0 A8 to A15 address output enabled; A16 to A23 address output disabled 1 A8 to A16 address output enabled; A17 to A23 address output disabled 0 A8 to A17 address output enabled; A18 to A23 address output disabled 1 A8 to A18 address output enabled; A19 to A23 address output disabled 0 A8 to A19 address output enabled; A20 to A23 address output disabled 1 A8 to A20 address output enabled; A21 to A23 address output disabled (Initial value*) 0 A8 to A21 address output enabled; A22, A23 address output disabled 1 A8 to A23 address output enabled 1 1 0 1 1 0 0 1 1 0 1 (Initial value*) Note: * In expanded mode with ROM, bits AE3 to AE0 are initialized to B'0000. In ROMless expanded mode, bits AE3 to AE0 are initialized to B'1101. Address pins A0 to A7 are made address outputs by setting the corresponding DDR bits to 1. Page 152 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 7.3 Overview of Bus Control 7.3.1 Area Partitioning Section 7 Bus Controller In advanced mode, the bus controller partitions the 16 Mbytes address space into eight areas, 0 to 7, in 2-Mbyte units, and performs bus control for external space in area units. In normal mode*, it controls a 64-kbyte address space comprising part of area 0. Figure 7.2 shows an outline of the memory map. Note: * Not available in the H8S/2646 Group. H'0000 H'000000 Area 0 (2 Mbytes) H'1FFFFF H'200000 Area 1 (2 Mbytes) H'3FFFFF H'400000 Area 2 (2 Mbytes) H'FFFF H'5FFFFF H'600000 Area 3 (2 Mbytes) H'7FFFFF H'800000 Area 4 (2 Mbytes) H'9FFFFF H'A00000 Area 5 (2 Mbytes) H'BFFFFF H'C00000 Area 6 (2 Mbytes) H'DFFFFF H'E00000 Area 7 (2 Mbytes) H'FFFFFF (1) Advanced mode (2) Normal mode* Note: * Not available in the H8S/2646. Figure 7.2 Overview of Area Partitioning REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 153 of 1126 Section 7 Bus Controller 7.3.2 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bus Specifications The external space bus specifications consist of three elements: bus width, number of access states, and number of program wait states. The bus width and number of access states for on-chip memory and internal I/O registers are fixed, and are not affected by the bus controller. Bus Width: A bus width of 8 or 16 bits can be selected with ABWCR. An area for which an 8-bit bus is selected functions as an 8-bit access space, and an area for which a 16-bit bus is selected functions as a16-bit access space. If all areas are designated for 8-bit access, 8-bit bus mode is set; if any area is designated for 16-bit access, 16-bit bus mode is set. When the burst ROM interface is designated, 16-bit bus mode is always set. Number of Access States: Two or three access states can be selected with ASTCR. An area for which 2-state access is selected functions as a 2-state access space, and an area for which 3-state access is selected functions as a 3-state access space. With the burst ROM interface, the number of access states may be determined without regard to ASTCR. When 2-state access space is designated, wait insertion is disabled. Number of Program Wait States: When 3-state access space is designated by ASTCR, the number of program wait states to be inserted automatically is selected with WCRH and WCRL. From 0 to 3 program wait states can be selected. Table 7.3 shows the bus specifications for each basic bus interface area. Page 154 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Table 7.3 Section 7 Bus Controller Bus Specifications for Each Area (Basic Bus Interface) ABWCR ASTCR WCRH, WCRL ABWn ASTn Wn1 Wn0 Bus Width Program Wait Access States States 0 0 -- -- 16 2 0 1 0 0 3 0 1 1 7.3.3 1 1 0 2 1 3 0 -- -- 1 0 0 1 Bus Specifications (Basic Bus Interface) 8 2 0 3 0 1 1 0 2 1 3 Memory Interfaces The H8S/2646 Group memory interfaces comprise a basic bus interface that allows direct connection or ROM, SRAM, and so on, and a burst ROM interface that allows direct connection of burst ROM. The memory interface can be selected independently for each area. An area for which the basic bus interface is designated functions as normal space, and an area for which the burst ROM interface is designated functions as burst ROM space. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 155 of 1126 Section 7 Bus Controller 7.3.4 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Interface Specifications for Each Area The initial state of each area is basic bus interface, 3-state access space. The initial bus width is selected according to the operating mode. The bus specifications described here cover basic items only, and the sections on each memory interface (sections 7.4, Basic Bus Interface and 7.5, Burst ROM Interface) should be referred to for further details. Area 0: Area 0 includes on-chip ROM, and in ROM-disabled expansion mode, all of area 0 is external space. In ROM-enabled expansion mode, the space excluding on-chip ROM is external space. Either basic bus interface or burst ROM interface can be selected for area 0. Areas 1 to 6: In external expansion mode, all of areas 1 to 6 is external space. Only the basic bus interface can be used for areas 1 to 6. Area 7: Area 7 includes the on-chip RAM and internal I/O registers. In external expansion mode, the space excluding the on-chip RAM and internal I/O registers is external space. The on-chip RAM is enabled when the RAME bit in the system control register (SYSCR) is set to 1; when the RAME bit is cleared to 0, the on-chip RAM is disabled and the corresponding space becomes external space. Only the basic bus interface can be used for the area 7. Page 156 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 7.4 Basic Bus Interface 7.4.1 Overview Section 7 Bus Controller The basic bus interface enables direct connection of ROM, SRAM, and so on. The bus specifications can be selected with ABWCR, ASTCR, WCRH, and WCRL (see table 7.3). 7.4.2 Data Size and Data Alignment Data sizes for the CPU and other internal bus masters are byte, word, and longword. The bus controller has a data alignment function, and when accessing external space, controls whether the upper data bus (D15 to D8) or lower data bus (D7 to D0) is used according to the bus specifications for the area being accessed (8-bit access space or 16-bit access space) and the data size. 8-Bit Access Space: Figure 7.3 illustrates data alignment control for the 8-bit access space. With the 8-bit access space, the upper data bus (D15 to D8) is always used for accesses. The amount of data that can be accessed at one time is one byte: a word transfer instruction is performed as two byte accesses, and a longword transfer instruction, as four byte accesses. Upper data bus Lower data bus D15 D8 D7 D0 Byte size Word size 1st bus cycle 2nd bus cycle 1st bus cycle Longword size 2nd bus cycle 3rd bus cycle 4th bus cycle Figure 7.3 Access Sizes and Data Alignment Control (8-Bit Access Space) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 157 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller 16-Bit Access Space: Figure 7.4 illustrates data alignment control for the 16-bit access space. With the 16-bit access space, the upper data bus (D15 to D8) and lower data bus (D7 to D0) are used for accesses. The amount of data that can be accessed at one time is one byte or one word, and a longword transfer instruction is executed as two word transfer instructions. In byte access, whether the upper or lower data bus is used is determined by whether the address is even or odd. The upper data bus is used for an even address, and the lower data bus for an odd address. Lower data bus Upper data bus D15 D8 D7 D0 Byte size * Even address Byte size * Odd address Word size Longword size 1st bus cycle 2nd bus cycle Figure 7.4 Access Sizes and Data Alignment Control (16-Bit Access Space) Page 158 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 7.4.3 Section 7 Bus Controller Valid Strobes Table 7.4 shows the data buses used and valid strobes for the access spaces. In a read, the RD signal is valid without discrimination between the upper and lower halves of the data bus. In a write, the HWR signal is valid for the upper half of the data bus, and the LWR signal for the lower half. Table 7.4 Area 8-bit access space Data Buses Used and Valid Strobes Access Size Read/ Write Address Valid Strobe Upper Data Bus (D15 to D8) Lower data bus (D7 to D0) Byte Read -- RD Valid Invalid Write -- HWR Read Even RD 16-bit access Byte space Odd Valid Invalid Invalid Valid Even HWR Valid Hi-Z Odd LWR Hi-Z Valid Read -- RD Valid Valid Write -- HWR, LWR Valid Valid Write Word Hi-Z Notes: Hi-Z: High impedance. Invalid: Input state; input value is ignored. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 159 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller 7.4.4 Basic Timing 8-Bit 2-State Access Space: Figure 7.5 shows the bus timing for an 8-bit 2-state access space. When an 8-bit access space is accessed, the upper half (D15 to D8) of the data bus is used. The LWR pin is fixed high. Wait states cannot be inserted. Bus cycle T1 T2 Address bus AS RD Read D15 to D8 Valid D7 to D0 Invalid HWR LWR High Write D15 to D8 D7 to D0 Valid High impedance Figure 7.5 Bus Timing for 8-Bit 2-State Access Space Page 160 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller 8-Bit 3-State Access Space: Figure 7.6 shows the bus timing for an 8-bit 3-state access space. When an 8-bit access space is accessed, the upper half (D15 to D8) of the data bus is used. The LWR pin is fixed high. Wait states can be inserted. Bus cycle T1 T2 T3 Address bus AS RD Read D15 to D8 Valid D7 to D0 Invalid HWR LWR High Write D15 to D8 D7 to D0 Valid High impedance Figure 7.6 Bus Timing for 8-Bit 3-State Access Space REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 161 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller 16-Bit 2-State Access Space: Figures 7.7 to 7.9 show bus timings for a 16-bit 2-state access space. When a 16-bit access space is accessed, the upper half (D15 to D8) of the data bus is used for the even address, and the lower half (D7 to D0) for the odd address. Wait states cannot be inserted. Bus cycle T2 T1 Address bus AS RD Read D15 to D8 Valid D7 to D0 Invalid HWR LWR High Write D15 to D8 D7 to D0 Valid High impedance Figure 7.7 Bus Timing for 16-Bit 2-State Access Space (1) (Even Address Byte Access) Page 162 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller Bus cycle T1 T2 Address bus AS RD Read D15 to D8 Invalid D7 to D0 Valid HWR High LWR Write D15 to D8 D7 to D0 High impedance Valid Figure 7.8 Bus Timing for 16-Bit 2-State Access Space (2) (Odd Address Byte Access) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 163 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller Bus cycle T1 T2 Address bus AS RD Read D15 to D8 Valid D7 to D0 Valid HWR LWR Write D15 to D8 Valid D7 to D0 Valid Figure 7.9 Bus Timing for 16-Bit 2-State Access Space (3) (Word Access) Page 164 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller 16-Bit 3-State Access Space: Figures 7.10 to 7.12 show bus timings for a 16-bit 3-state access space. When a 16-bit access space is accessed , the upper half (D15 to D8) of the data bus is used for the even address, and the lower half (D7 to D0) for the odd address. Wait states can be inserted. Bus cycle T2 T1 T3 Address bus AS RD Read D15 to D8 Valid D7 to D0 Invalid HWR LWR High Write D15 to D8 D7 to D0 Valid High impedance Figure 7.10 Bus Timing for 16-Bit 3-State Access Space (1) (Even Address Byte Access) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 165 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller Bus cycle T1 T2 T3 Address bus AS RD Read D15 to D8 Invalid D7 to D0 Valid HWR High LWR Write D15 to D8 D7 to D0 High impedance Valid Figure 7.11 Bus Timing for 16-Bit 3-State Access Space (2) (Odd Address Byte Access) Page 166 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller Bus cycle T1 T2 T3 Address bus AS RD Read D15 to D8 Valid D7 to D0 Valid HWR LWR Write D15 to D8 Valid D7 to D0 Valid Figure 7.12 Bus Timing for 16-Bit 3-State Access Space (3) (Word Access) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 167 of 1126 Section 7 Bus Controller 7.4.5 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Wait Control When accessing external space, the H8S/2646 Group can extend the bus cycle by inserting one or more wait states (Tw). There are two ways of inserting wait states: program wait insertion. Program Wait Insertion: From 0 to 3 wait states can be inserted automatically between the T2 state and T3 state on an individual area basis in 3-state access space, according to the settings of WCRH and WCRL. Pin Wait Insertion: Setting the WAITE bit in BCRH to 1 enables wait input by means of the WAIT pin. When external space is accessed in this state, a program wait is first inserted in accordance with the settings in WCRH and WCRL. If the WAIT pin is low at the falling edge of in the last T2 or Tw state, another Tw state is inserted. If the WAIT pin is held low, Tw states are inserted until it goes high. This is useful when inserting four or more Tw states, or when changing the number of Tw states for different external devices. The WAITE bit setting applies to all areas. Page 168 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller Figure 7.13 shows an example of wait state insertion timing. By program wait T1 T2 Tw By WAIT pin Tw Tw T3 WAIT Address bus AS RD Read Data bus Read data HWR, LWR Write Data bus Write data Note: Downward arrows show the timing of WAIT pin sampling. Figure 7.13 Example of Wait State Insertion Timing The settings after a reset are: 3-state access, 3 program wait state insertion. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 169 of 1126 Section 7 Bus Controller 7.5 Burst ROM Interface 7.5.1 Overview H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM In this LSI, the area 0 external space can be set as burst ROM space and burst ROM interfacing performed. Burst ROM space interfacing allows 16-bit ROM capable of burst access to be accessed at high-speed. The BRSTRM bit of BCRH sets area 0 as burst ROM space. CPU instruction fetches (only) can be performed using a maximum of 4-word or 8-word continuous burst access. 1 state or 2 states can be selected in the case of burst access. 7.5.2 Basic Timing The AST0 bit of ASTCR sets the number of access states in the initial cycle (full access) of the burst ROM interface. Wait states can be inserted when the AST0 bit is set to 1. The burst cycle can be set for 1 state or 2 sttes by setting the BRSTS1 bit of BCRH. Wait states cannot be inserted. When area 0 is set as burst ROM space, area 0 is a 16-bit access space regardless of the ABW0 bit of ABWCR. When the BRSTS0 bit of BCRH is cleared to 0, 4-word max. burst access is performed. When the BRSTS0 bit is set to 1, 8-word max. burst access is performed. Figures 7.14 (a) and (b) show the basic access timing for the burst ROM space. Figure 7.14 (a) is an example when both the AST0 and BRSTS1 bits are set to 1. Figure 7.14 (b) is an example when both the AST0 and BRSTS1 bits are set to 0. Page 170 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller Full access T1 T2 Burst access T3 T1 T2 T1 T2 Low address only changes Address bus AS RD Data bus Read data Read data Read data Figure 7.14 (a) Example Burst ROM Access Timing (AST0=BRSTS1=1) Full access T1 T2 Burst access T1 T1 Low address only changes Address bus AS RD Data bus Read data Read data Read data Figure 7.14 (b) Example Burst ROM Access Timing (AST0=BRSTS1=0) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 171 of 1126 Section 7 Bus Controller 7.5.3 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Wait Control As with the basic bus interface, either program wait insertion or pin wait insertion using the WAIT pin can be used in the burst ROM interface initial cycle (full access). See section 7.4.5, Wait Control. Wait states cannot be inserted in the burst cycle. 7.6 Idle Cycle 7.6.1 Operation When the H8S/2646 Group accesses external space, it can insert a 1-state idle cycle (TI) between bus cycles in the following two cases: (1) when read accesses between different areas occur consecutively, and (2) when a write cycle occurs immediately after a read cycle. By inserting an idle cycle it is possible, for example, to avoid data collisions between ROM, with a long output floating time, and high-speed memory, I/O interfaces, and so on. Page 172 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller (1) Consecutive Reads between Different Areas If consecutive reads between different areas occur while the ICIS1 bit in BCRH is set to 1, an idle cycle is inserted at the start of the second read cycle. Figure 7.15 shows an example of the operation in this case. In this example, bus cycle A is a read cycle from ROM with a long output floating time, and bus cycle B is a read cycle from SRAM, each being located in a different area. In (a), an idle cycle is not inserted, and a collision occurs in cycle B between the read data from ROM and that from SRAM. In (b), an idle cycle is inserted, and a data collision is prevented. Bus cycle A T1 T2 Bus cycle B T3 T1 Bus cycle A T2 Address bus Address bus CS* (area A) CS* (area A) CS* (area B) CS* (area B) RD RD Data bus Data bus Long output floating time (a) Idle cycle not inserted (ICIS1 = 0) T1 T2 T3 Bus cycle B TI T1 T2 Data collision (b) Idle cycle inserted (Initial value ICIS1 = 1) Note: * The CS signal is generated externally rather than inside the LSI device. Figure 7.15 Example of Idle Cycle Operation (1) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 173 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller (2) Write after Read If an external write occurs after an external read while the ICIS0 bit in BCRH is set to 1, an idle cycle is inserted at the start of the write cycle. Figure 7.16 shows an example of the operation in this case. In this example, bus cycle A is a read cycle from ROM with a long output floating time, and bus cycle B is a CPU write cycle. In (a), an idle cycle is not inserted, and a collision occurs in cycle B between the read data from ROM and the CPU write data. In (b), an idle cycle is inserted, and a data collision is prevented. Bus cycle A T1 T2 T3 Bus cycle B T1 T2 Bus cycle A Address bus Address bus CS* (area A) CS* (area A) CS* (area B) CS* (area B) RD RD T1 T2 Bus cycle B T3 TI T1 T2 Possibility of overlap between CS (area B) and RD (a) Idle cycle not inserted (ICIS1 = 0) (b) Idle cycle inserted (Initial value ICIS1 = 1) Note: * The CS signal is generated externally rather than inside the LSI device. Figure 7.16 Example of Idle Cycle Operation (2) Page 174 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller (3) Relationship between Chip Select (CS*) Signal and Read (RD) Signal Depending on the system's load conditions, the RD signal may lag behind the CS signal*. An example is shown in figure 7.17. In this case, with the setting for no idle cycle insertion (a), there may be a period of overlap between the bus cycle A RD signal and the bus cycle B CS signal. Setting idle cycle insertion, as in (b), however, will prevent any overlap between the RD and CS signals. In the initial state after reset release, idle cycle insertion (b) is set. Note: * The CS signal is generated externally rather than inside the LSI device. Bus cycle A T1 T2 Bus cycle B T3 T1 Bus cycle A T2 Address bus Address bus CS* (area A) CS* (area A) CS* (area B) CS* (area B) RD RD HWR HWR Data bus Data bus Long output floating time (a) Idle cycle not inserted (ICIS0 = 0) T1 T2 T3 Bus cycle B TI T1 T2 Data collision (b) Idle cycle inserted (Initial value ICIS0 = 1) Note: * The CS signal is generated externally rather than inside the LSI device. Figure 7.17 Relationship between Chip Select (CS)* and Read (RD) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 175 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller 7.6.2 Pin States During Idle Cycles Table 7.5 shows the pin states during idle cycles. Table 7.5 Pin States During Idle Cycles Pins Pin State A23 to A0 Content identical to immediately following bus cycle D15 to D0 High impedance AS High level RD High level HWR High level LWR High level Page 176 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 7.7 Section 7 Bus Controller Write Data Buffer Function The H8S/2646 Group has a write data buffer function in the external data bus. Using this function enables external writes to be executed in parallel with internal accesses. The write data buffer function is made available by setting the WDBE bit in BCRL to 1. Figure 7.18 shows an example of the timing when the write data buffer function is used. When this function is used, if an external write continues for 2 states or longer, and there is an internal access next, only an external write is executed in the first state, but from the next state onward an internal access (on-chip memory or internal I/O register read/write) is executed in parallel with the external write rather than waiting until it ends. On-chip memory read Internal I/O register read External write cycle T1 T2 TW TW T3 Internal address bus Internal memory Internal I/O register address Internal read signal A23 to A0 External space write External address HWR, LWR D15 to D0 Figure 7.18 Example of Timing when Write Data Buffer Function is Used REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 177 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller 7.8 Bus Arbitration 7.8.1 Overview The H8S/2646 Group has a bus arbiter that arbitrates bus master operations. There are two bus masters, the CPU and DTC which perform read/write operations when they have possession of the bus. Each bus master requests the bus by means of a bus request signal. The bus arbiter determines priorities at the prescribed timing, and permits use of the bus by means of a bus request acknowledge signal. The selected bus master then takes possession of the bus and begins its operation. 7.8.2 Operation The bus arbiter detects the bus masters' bus request signals, and if the bus is requested, sends a bus request acknowledge signal to the bus master making the request. If there are bus requests from more than one bus master, the bus request acknowledge signal is sent to the one with the highest priority. When a bus master receives the bus request acknowledge signal, it takes possession of the bus until that signal is canceled. The order of priority of the bus masters is as follows: (High) 7.8.3 DTC > CPU (Low) Bus Transfer Timing Even if a bus request is received from a bus master with a higher priority than that of the bus master that has acquired the bus and is currently operating, the bus is not necessarily transferred immediately. There are specific times at which each bus master can relinquish the bus. CPU: The CPU is the lowest-priority bus master, and if a bus request is received from the DTC, the bus arbiter transfers the bus to the bus master that issued the request. The timing for transfer of the bus is as follows: * The bus is transferred at a break between bus cycles. However, if a bus cycle is executed in discrete operations, as in the case of a longword-size access, the bus is not transferred between the operations. See appendix A.5, Bus States During Instruction Execution, for timings at which the bus is not transferred. * If the CPU is in sleep mode, it transfers the bus immediately. Page 178 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 7 Bus Controller DTC: The DTC sends the bus arbiter a request for the bus when an activation request is generated. The DTC can release the bus after a vector read, a register information read (3 states), a single data transfer, or a register information write (3 states). It does not release the bus during a register information read (3 states), a single data transfer, or a register information write (3 states). 7.9 Resets and the Bus Controller In a reset, the H8S/2646 Group, including the bus controller, enters the reset state at that point, and an executing bus cycle is discontinued. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 179 of 1126 Section 7 Bus Controller Page 180 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) Section 8 Data Transfer Controller (DTC) 8.1 Overview The H8S/2646 Group includes a data transfer controller (DTC). The DTC can be activated by an interrupt or software, to transfer data. 8.1.1 Features * Transfer possible over any number of channels Transfer information is stored in memory One activation source can trigger a number of data transfers (chain transfer) * Wide range of transfer modes Normal, repeat, and block transfer modes available Incrementing, decrementing, and fixing of source and destination addresses can be selected * Direct specification of 16-Mbyte address space possible 24-bit transfer source and destination addresses can be specified * Transfer can be set in byte or word units * A CPU interrupt can be requested for the interrupt that activated the DTC An interrupt request can be issued to the CPU after one data transfer ends An interrupt request can be issued to the CPU after the specified data transfers have completely ended * Activation by software is possible * Module stop mode can be set The initial setting enables DTC registers to be accessed. DTC operation is halted by setting module stop mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 181 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) 8.1.2 Block Diagram Figure 8.1 shows a block diagram of the DTC. The DTC's register information is stored in the on-chip RAM*. A 32-bit bus connects the DTC to the on-chip RAM (1 kbyte), enabling 32-bit/1-state reading and writing of the DTC register information. Note: * When the DTC is used, the RAME bit in SYSCR must be set to 1. Internal address bus CPU interrupt request On-chip RAM Register information MRA MRB CRA CRB DAR SAR Control logic DTC DTC service request DTVECR Interrupt request DTCERA to DTCERG, DTCERI Interrupt controller Internal data bus Legend: MRA, MRB CRA, CRB SAR DAR DTCERA to DTCERG, I DTVECR : DTC mode registers A and B : DTC transfer count registers A and B : DTC source address register : DTC destination address register : DTC enable registers A to G, I : DTC vector register Figure 8.1 Block Diagram of DTC Page 182 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 8.1.3 Section 8 Data Transfer Controller (DTC) Register Configuration Table 8.1 summarizes the DTC registers. Table 8.1 DTC Registers Name Abbreviation R/W Initial Value 1 Address* DTC mode register A MRA Undefined DTC mode register B MRB --* 2 --* 3 --* 3 --* Undefined Undefined 2 Undefined DTC source address register SAR DTC destination address register DAR --* 2 --* CRA 2 --* DTC transfer count register B CRB --* Undefined 3 --* 3 --* DTC enable registers DTCER R/W H'00 H'FE16 to H'FE1E DTC vector register DTVECR R/W H'00 H'FE1F Module stop control register A MSTPCRA R/W H'3F H'FDE8 DTC transfer count register A 2 2 Undefined 3 --* 3 --* Notes: 1. Lower 16 bits of the address. 2. Registers within the DTC cannot be read or written to directly. 3. Register information is located in on-chip RAM addresses H'EBC0 to H'EFBF. It cannot be located in external memory space. When the DTC is used, do not clear the RAME bit in SYSCR to 0. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 183 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) 8.2 Register Descriptions 8.2.1 DTC Mode Register A (MRA) 7 6 5 4 3 2 1 0 SM1 SM0 DM1 DM0 MD1 MD0 DTS Sz Initial value : * * * * * * * * R/W -- -- -- -- -- -- -- Bit : : -- *: Undefined MRA is an 8-bit register that controls the DTC operating mode. Bits 7 and 6--Source Address Mode 1 and 0 (SM1, SM0): These bits specify whether SAR is to be incremented, decremented, or left fixed after a data transfer. Bit 7 SM1 Bit 6 SM0 Description 0 -- SAR is fixed 1 0 SAR is incremented after a transfer (by +1 when Sz = 0; by +2 when Sz = 1) 1 SAR is decremented after a transfer (by -1 when Sz = 0; by -2 when Sz = 1) Bits 5 and 4--Destination Address Mode 1 and 0 (DM1, DM0): These bits specify whether DAR is to be incremented, decremented, or left fixed after a data transfer. Bit 5 DM1 Bit 4 DM0 Description 0 -- DAR is fixed 1 0 DAR is incremented after a transfer (by +1 when Sz = 0; by +2 when Sz = 1) 1 DAR is decremented after a transfer (by -1 when Sz = 0; by -2 when Sz = 1) Page 184 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) Bits 3 and 2--DTC Mode (MD1, MD0): These bits specify the DTC transfer mode. Bit 3 MD1 Bit 2 MD0 Description 0 0 Normal mode 1 Repeat mode 1 0 Block transfer mode 1 -- Bit 1--DTC Transfer Mode Select (DTS): Specifies whether the source side or the destination side is set to be a repeat area or block area, in repeat mode or block transfer mode. Bit 1 DTS Description 0 Destination side is repeat area or block area 1 Source side is repeat area or block area Bit 0--DTC Data Transfer Size (Sz): Specifies the size of data to be transferred. Bit 0 Sz Description 0 Byte-size transfer 1 Word-size transfer REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 185 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) 8.2.2 DTC Mode Register B (MRB) 7 6 5 4 3 2 1 0 CHNE DISEL -- -- -- -- -- -- Initial value: * * * * * * * * R/W -- -- -- -- -- -- -- Bit : : -- *: Undefined MRB is an 8-bit register that controls the DTC operating mode. Bit 7--DTC Chain Transfer Enable (CHNE): Specifies chain transfer. With chain transfer, a number of data transfers can be performed consecutively in response to a single transfer request. In data transfer with CHNE set to 1, determination of the end of the specified number of transfers, clearing of the interrupt source flag, and clearing of DTCER is not performed. Bit 7 CHNE Description 0 End of DTC data transfer (activation waiting state is entered) 1 DTC chain transfer (new register information is read, then data is transferred) Bit 6--DTC Interrupt Select (DISEL): Specifies whether interrupt requests to the CPU are disabled or enabled after a data transfer. Bit 6 DISEL Description 0 After a data transfer ends, the CPU interrupt is disabled unless the transfer counter is 0 (the DTC clears the interrupt source flag of the activating interrupt to 0) 1 After a data transfer ends, the CPU interrupt is enabled (the DTC does not clear the interrupt source flag of the activating interrupt to 0) Bits 5 to 0--Reserved: These bits have no effect on DTC operation in the H8S/2646 Group, and should always be written with 0. Page 186 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 8.2.3 Section 8 Data Transfer Controller (DTC) DTC Source Address Register (SAR) 23 22 21 20 19 4 3 2 1 0 Initial value: * * * * * * * * * * R/W -- -- -- -- -- -- -- -- -- -- Bit : : *: Undefined SAR is a 24-bit register that designates the source address of data to be transferred by the DTC. For word-size transfer, specify an even source address. 8.2.4 DTC Destination Address Register (DAR) 23 22 21 20 19 4 3 2 1 0 Initial value : * * * * * * * * * * R/W -- -- -- -- -- -- -- -- -- -- Bit : : *: Undefined DAR is a 24-bit register that designates the destination address of data to be transferred by the DTC. For word-size transfer, specify an even destination address. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 187 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) 8.2.5 DTC Transfer Count Register A (CRA) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value : * * * * * * * * * * * * * * * * R/W -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Bit : : CRAH CRAL *: Undefined CRA is a 16-bit register that designates the number of times data is to be transferred by the DTC. In normal mode, the entire CRA functions as a 16-bit transfer counter (1 to 65,536). It is decremented by 1 every time data is transferred, and transfer ends when the count reaches H'0000. In repeat mode or block transfer mode, the CRA is divided into two parts: the upper 8 bits (CRAH) and the lower 8 bits (CRAL). CRAH holds the number of transfers while CRAL functions as an 8-bit transfer counter (1 to 256). CRAL is decremented by 1 every time data is transferred, and the contents of CRAH are sent when the count reaches H'00. This operation is repeated. 8.2.6 DTC Transfer Count Register B (CRB) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value: * * * * * * * * * * * * * * * * R/W -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Bit : : *: Undefined CRB is a 16-bit register that designates the number of times data is to be transferred by the DTC in block transfer mode. It functions as a 16-bit transfer counter (1 to 65536) that is decremented by 1 every time data is transferred, and transfer ends when the count reaches H'0000. Page 188 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 8.2.7 Section 8 Data Transfer Controller (DTC) DTC Enable Registers (DTCER) Bit : Initial value: R/W : 7 6 5 4 3 2 1 0 DTCE7 DTCE6 DTCE5 DTCE4 DTCE3 DTCE2 DTCE1 DTCE0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W The DTC enable registers comprise eight 8-bit readable/writable registers, DTCERA to DTCERG and DTCERI, with bits corresponding to the interrupt sources that can control enabling and disabling of DTC activation. These bits enable or disable DTC service for the corresponding interrupt sources. The DTC enable registers are initialized to H'00 by a reset and in hardware standby mode. Bit n--DTC Activation Enable (DTCEn) Bit n DTCEn Description 0 DTC activation by this interrupt is disabled (Initial value) [Clearing conditions] 1 * When the DISEL bit is 1 and the data transfer has ended * When the specified number of transfers have ended DTC activation by this interrupt is enabled [Holding condition] When the DISEL bit is 0 and the specified number of transfers have not ended (n = 7 to 0) A DTCE bit can be set for each interrupt source that can activate the DTC. The correspondence between interrupt sources and DTCE bits is shown in table 8.4, together with the vector number generated for each interrupt controller. For DTCE bit setting, use bit manipulation instructions such as BSET and BCLR for reading and writing. If all interrupts are masked, multiple activation sources can be set at one time by writing data after executing a dummy read on the relevant register. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 189 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) 8.2.8 Bit DTC Vector Register (DTVECR) : 7 6 5 4 3 2 1 0 SWDTE DTVEC6 DTVEC5 DTVEC4 DTVEC3 DTVEC2 DTVEC1 DTVEC0 Initial value: R/W : 0 R/(W)*1 0 0 R/(W)*2 R/(W)*2 0 0 0 R/(W)*2 R/(W)*2 R/(W)*2 0 0 R/(W)*2 R/(W)*2 Notes: 1. Only 1 can be written to the SWDTE bit. 2. Bits DTVEC6 to DTVEC0 can be written to when SWDTE = 0. DTVECR is an 8-bit readable/writable register that enables or disables DTC activation by software, and sets a vector number for the software activation interrupt. DTVECR is initialized to H'00 by a reset and in hardware standby mode. Bit 7--DTC Software Activation Enable (SWDTE): Enables or disables DTC activation by software. Bit 7 SWDTE Description 0 DTC software activation is disabled (Initial value) [Clearing conditions] 1 * When the DISEL bit is 0 and the specified number of transfers have not ended * When 0 s written to the DISEL bit after a software-activated data transfer end interrupt (SWDTEND) request has been sent to the CPU DTC software activation is enabled [Holding conditions] * When the DISEL bit is 1 and data transfer has ended * When the specified number of transfers have ended * During data transfer due to software activation Bits 6 to 0--DTC Software Activation Vectors 6 to 0 (DTVEC6 to DTVEC0): These bits specify a vector number for DTC software activation. The vector address is expressed as H'0400 + ((vector number) << 1). <<1 indicates a one-bit leftshift. For example, when DTVEC6 to DTVEC0 = H'10, the vector address is H'0420. Page 190 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 8.2.9 Section 8 Data Transfer Controller (DTC) Module Stop Control Register A (MSTPCRA) Bit 7 6 5 4 3 2 1 0 MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value 0 0 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W MSTPCRA is a 8-bit readable/writable register that performs module stop mode control. When the MSTPA6 bit in MSTPCRA is set to 1, the DTC operation stops at the end of the bus cycle and a transition is made to module stop mode. However, 1 cannot be written in the MSTPA6 bit while the DTC is operating. For details, see section 22.5, Module Stop Mode. MSTPCRA is initialized to H'3F by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 6--Module Stop (MSTPA6): Specifies the DTC module stop mode. Bit 6 MSTPA6 Description 0 DTC module stop mode cleared 1 DTC module stop mode set REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 191 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) 8.3 Operation 8.3.1 Overview When activated, the DTC reads register information that is already stored in memory and transfers data on the basis of that register information. After the data transfer, it writes updated register information back to memory. Pre-storage of register information in memory makes it possible to transfer data over any required number of channels. Setting the CHNE bit to 1 makes it possible to perform a number of transfers with a single activation. Figure 8.2 shows a flowchart of DTC operation. Start Read DTC vector Next transfer Read register information Data transfer Write register information CHNE = 1 Yes No Transfer Counter = 0 or DISEL = 1 Yes No Clear an activation flag Clear DTCER End Interrupt exception handling Figure 8.2 Flowchart of DTC Operation Page 192 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) The DTC transfer mode can be normal mode, repeat mode, or block transfer mode. The 24-bit SAR designates the DTC transfer source address and the 24-bit DAR designates the transfer destination address. After each transfer, SAR and DAR are independently incremented, decremented, or left fixed. Table 8.2 outlines the functions of the DTC. Table 8.2 DTC Functions Address Registers Transfer Mode Activation Source Transfer Source Transfer Destination * Normal mode * 24 bits 24 bits One transfer request transfers one byte or one word * TPU TGI * SCI TXI or RXI * A/D converter ADI * Motor control PWM timer CMI Repeat mode * One transfer request transfers one byte or one word HCAN RM0 (mail box 0) * Software Memory addresses are incremented or decremented by 1 or 2 Up to 65,536 transfers possible * IRQ Memory addresses are incremented or decremented by 1 or 2 After the specified number of transfers (1 to 256), the initial state resumes and operation continues * Block transfer mode One transfer request transfers a block of the specified size Block size is from 1 to 256 bytes or words Up to 65,536 transfers possible A block area can be designated at either the source or destination REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 193 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) 8.3.2 Activation Sources The DTC operates when activated by an interrupt or by a write to DTVECR by software. An interrupt request can be directed to the CPU or DTC, as designated by the corresponding DTCER bit. An interrupt becomes a DTC activation source when the corresponding bit is set to 1, and a CPU interrupt source when the bit is cleared to 0. At the end of a data transfer (or the last consecutive transfer in the case of chain transfer), the activation source or corresponding DTCER bit is cleared. Table 8.3 shows activation source and DTCER clearance. The activation source flag, in the case of RXI0, for example, is the RDRF flag of SCI0. Table 8.3 Activation Source and DTCER Clearance Activation Source When the DISEL Bit Is 0 and the Specified Number of Transfers Have Not Ended When the DISEL Bit Is 1, or when the Specified Number of Transfers Have Ended Software activation The SWDTE bit is cleared to 0 The SWDTE bit remains set to 1 Interrupt activation The corresponding DTCER bit remains set to 1 An interrupt is issued to the CPU The activation source flag is cleared to 0 The corresponding DTCER bit is cleared to 0 The activation source flag remains set to 1 A request is issued to the CPU for the activation source interrupt Figure 8.3 shows a block diagram of activation source control. For details see section 5, Interrupt Controller. Page 194 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) Source flag cleared Clear controller Clear DTCER Clear request On-chip supporting module IRQ interrupt DTVECR Interrupt request Selection circuit Select DTC Interrupt controller CPU Interrupt mask Figure 8.3 Block Diagram of DTC Activation Source Control When an interrupt has been designated a DTC activation source, existing CPU mask level and interrupt controller priorities have no effect. If there is more than one activation source at the same time, the DTC operates in accordance with the default priorities. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 195 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) 8.3.3 DTC Vector Table Figure 8.4 shows the correspondence between DTC vector addresses and register information. Table 8.4 shows the correspondence between activation and vector addresses. When the DTC is activated by software, the vector address is obtained from: H'0400 + (DTVECR[6:0] << 1) (where << 1 indicates a 1-bit left shift). For example, if DTVECR is H'10, the vector address is H'0420. The DTC reads the start address of the register information from the vector address set for each activation source, and then reads the register information from that start address. The register information can be placed at predetermined addresses in the on-chip RAM. The start address of the register information should be an integral multiple of four. The configuration of the vector address is the same in both normal* and advanced modes, a 2-byte unit being used in both cases. These two bytes specify the lower bits of the address in the on-chip RAM. Note: * Not available in the H8S/2646 Group. DTC vector address Register information start address Register information Chain transfer Figure 8.4 Correspondence between DTC Vector Address and Register Information Page 196 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Table 8.4 Section 8 Data Transfer Controller (DTC) Interrupt Sources, DTC Vector Addresses, and Corresponding DTCEs Interrupt Source Origin of Interrupt Source Vector Number Vector Address Write to DTVECR Software DTVECR H'0400+ (DTVECR [6:0] <<1) -- IRQ0 External pin 16 H'0420 DTCEA7 IRQ1 17 H'0422 DTCEA6 IRQ2 18 H'0424 DTCEA5 IRQ3 19 H'0426 DTCEA4 IRQ4 20 H'0428 DTCEA3 IRQ5 21 H'042A DTCEA2 22 to 27 H'042C to H'0436 -- Reserved -- DTCE* 1 Priority High ADI (A/D conversion end) A/D 28 H'0438 DTCEB6 Reserved -- 29 to 31 H'043A to H'043E -- TGI0A (GR0A compare match/ input capture) TPU channel 0 32 H'0440 DTCEB5 TGI0B (GR0B compare match/ input capture) 33 H'0442 DTCEB4 TGI0C (GR0C compare match/ input capture) 34 H'0444 DTCEB3 TGI0D (GR0D compare match/ input capture) 35 H'0446 DTCEB2 Reserved -- 36 to 39 H'0448 to H'044E -- TGI1A (GR1A compare match/ input capture) TPU channel 1 40 H'0450 DTCEB1 41 H'0452 DTCEB0 44 H'0458 DTCEC7 45 H'045A DTCEC6 TGI1B (GR1B compare match/ input capture) TGI2A (GR2A compare match/ input capture) TGI2B (GR2B compare match/ input capture) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 TPU channel 2 Low Page 197 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) Interrupt Source Origin of Interrupt Source TGI3A (GR3A compare match/ input capture) TPU channel 3 Vector Number Vector Address DTCE* 48 H'0460 DTCEC5 TGI3B (GR3B compare match/ input capture) 49 H'0462 DTCEC4 TGI3C (GR3C compare match/ input capture) 50 H'0464 DTCEC3 TGI3D (GR3D compare match/ input capture) 51 H'0466 DTCEC2 1 Reserved -- 52 to 55 H'0468 to H'046E -- TGI4A (GR4A compare match/ input capture) TPU channel 4 56 H'0470 DTCEC1 57 H'0472 DTCEC0 TGI4B (GR4B compare match/ input capture) Reserved -- 58, 59 H'0474 to H'0476 -- TGI5A (GR5A compare match/ input capture) TPU channel 5 60 H'0478 DTCED5 61 H'047A DTCED4 TGI5B (GR5B compare match/ input capture) Reserved -- 62 to 80 H'047C to H'04A0 -- RXI0 (reception complete 0) 81 H'04A2 DTCEE3 TXI0 (transmit data empty 0) SCI channel 0 82 H'04A4 DTCEE2 Reserved -- 83, 84 H'04A6 to H'04A8 -- RXI1 (reception complete 1) 85 H'04AA DTCEE1 TXI1 (transmit data empty 1) SCI channel 1 86 H'04AC DTCEE0 Reserved -- 87, 88 H'04AE to H'04B0 -- RXI2 (reception complete 2)* 2 TXI2 (transmit data empty 2) * SCI channel 2 89 H'04B2 DTCEF7 90 H'04B4 DTCEF6 Reserved -- 91 to 103 H'04B6 to H'04CE -- 2 Page 198 of 1126 Priority High Low REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) Interrupt Source Origin of Interrupt Source Vector Number Vector Address DTCE* CMI1 (PWCYR1 compare match) PWM 104 H'04D0 DTCEG7 105 H'04D2 DTCEG6 Reserved -- 106 to 108 H'04D4 H'04D8 -- RM0 (Mail box 0) HCAN0 109 H'04DA DTCEG2 Reserved -- 110 to 124 H'04DC H'04FC -- CMI2 (PWCYR2 compare match) 1 Priority High Low Notes: 1. DTCE bits with no corresponding interrupt are reserved, and should be written with 0. 2. These vectors are used in the H8S/2648, H8S/2648R, and H8S/2647. They are reserved in the H8S/2646, H8S/2646R, and H8S/2645. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 199 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) 8.3.4 Location of Register Information in Address Space Figure 8.5 shows how the register information should be located in the address space. Locate the MRA, SAR, MRB, DAR, CRA, and CRB registers, in that order, from the start address of the register information (contents of the vector address). In the case of chain transfer, register information should be located in consecutive areas. Locate the register information in the on-chip RAM (addresses: H'FFEBC0 to H'FFEFBF). Lower address Register information start address Chain transfer 0 1 2 3 MRA SAR MRB DAR CRA Register information CRB MRA SAR MRB DAR CRA Register information for 2nd transfer in chain transfer CRB 4 bytes Figure 8.5 Location of Register Information in Address Space Page 200 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 8.3.5 Section 8 Data Transfer Controller (DTC) Normal Mode In normal mode, one operation transfers one byte or one word of data. From 1 to 65,536 transfers can be specified. Once the specified number of transfers have ended, a CPU interrupt can be requested. Table 8.5 lists the register information in normal mode and figure 8.6 shows memory mapping in normal mode. Table 8.5 Register Information in Normal Mode Name Abbreviation Function DTC source address register SAR Designates source address DTC destination address register DAR Designates destination address DTC transfer count register A CRA Designates transfer count DTC transfer count register B CRB Not used SAR DAR Transfer Figure 8.6 Memory Mapping in Normal Mode REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 201 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) 8.3.6 Repeat Mode In repeat mode, one operation transfers one byte or one word of data. From 1 to 256 transfers can be specified. Once the specified number of transfers have ended, the initial state of the transfer counter and the address register specified as the repeat area is restored, and transfer is repeated. In repeat mode the transfer counter value does not reach H'00, and therefore CPU interrupts cannot be requested when DISEL = 0. Table 8.6 lists the register information in repeat mode and figure 8.7 shows memory mapping in repeat mode. Table 8.6 Register Information in Repeat Mode Name Abbreviation Function DTC source address register SAR Designates source address DTC destination address register DAR Designates destination address DTC transfer count register AH CRAH Holds number of transfers DTC transfer count register AL CRAL Designates transfer count DTC transfer count register B CRB Not used SAR or DAR Repeat area Transfer DAR or SAR Figure 8.7 Memory Mapping in Repeat Mode Page 202 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 8.3.7 Section 8 Data Transfer Controller (DTC) Block Transfer Mode In block transfer mode, one operation transfers one block of data. Either the transfer source or the transfer destination is designated as a block area. The block size is 1 to 256. When the transfer of one block ends, the initial state of the block size counter and the address register specified as the block area is restored. The other address register is then incremented, decremented, or left fixed. From 1 to 65,536 transfers can be specified. Once the specified number of transfers have ended, a CPU interrupt is requested. Table 8.7 lists the register information in block transfer mode and figure 8.8 shows memory mapping in block transfer mode. Table 8.7 Register Information in Block Transfer Mode Name Abbreviation Function DTC source address register SAR Designates source address DTC destination address register DAR Designates destination address DTC transfer count register AH CRAH Holds block size DTC transfer count register AL CRAL Designates block size count DTC transfer count register B CRB Transfer count REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 203 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) First block SAR or DAR * * * DAR or SAR Block area Transfer Nth block Figure 8.8 Memory Mapping in Block Transfer Mode Page 204 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 8.3.8 Section 8 Data Transfer Controller (DTC) Chain Transfer Setting the CHNE bit to 1 enables a number of data transfers to be performed consectutively in response to a single transfer request. SAR, DAR, CRA, CRB, MRA, and MRB, which define data transfers, can be set independently. Figure 8.9 shows the memory map for chain transfer. Source Destination Register information CHNE = 1 DTC vector address Register information start address Register information CHNE = 0 Source Destination Figure 8.9 Chain Transfer Memory Map In the case of transfer with CHNE set to 1, an interrupt request to the CPU is not generated at the end of the specified number of transfers or by setting of the DISEL bit to 1, and the interrupt source flag for the activation source is not affected. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 205 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) 8.3.9 Operation Timing Figures 8.10 to 8.12 show an example of DTC operation timing. DTC activation request DTC request Data transfer Vector read Address Read Write Transfer information read Transfer information write Figure 8.10 DTC Operation Timing (Example in Normal Mode or Repeat Mode) DTC activation request DTC request Data transfer Vector read Address Read Write Read Write Transfer information read Transfer information write Figure 8.11 DTC Operation Timing (Example of Block Transfer Mode, with Block Size of 2) Page 206 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) DTC activation request DTC request Data transfer Data transfer Read Write Read Write Vector read Address Transfer information read Transfer Transfer information information write read Transfer information write Figure 8.12 DTC Operation Timing (Example of Chain Transfer) 8.3.10 Number of DTC Execution States Table 8.8 lists execution statuses for a single DTC data transfer, and table 8.9 shows the number of states required for each execution status. Table 8.8 DTC Execution Statuses Mode Vector Read I Register Information Read/Write Data Read J K Data Write L Internal Operations M Normal 1 6 1 1 3 Repeat 1 6 1 1 3 Block transfer 1 6 N N 3 N: Block size (initial setting of CRAH and CRAL) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 207 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) Table 8.9 Number of States Required for Each Execution Status OnChip RAM OnChip ROM Bus width 32 16 8 16 8 8 16 16 Access states 1 1 2 2 2 3 2 3 Object to be Accessed Execution status On-Chip I/O Registers External Devices Vector read SI -- 1 -- -- 4 6+2m 2 3+m Register information read/write SJ 1 -- -- -- -- -- -- -- Byte data read SK 1 1 2 2 2 3+m 2 3+m Word data read SK 1 1 4 2 4 6+2m 2 3+m Byte data write SL 1 1 2 2 2 3+m 2 3+m Word data write SL 1 1 4 2 4 6+2m 2 3+m Internal operation SM 1 1 1 1 1 1 1 1 The number of execution states is calculated from the formula below. Note that means the sum of all transfers activated by one activation event (the number in which the CHNE bit is set to 1, plus 1). Number of execution states = I * (SI +1) + (J * SJ + K * SK + L * SL) + M * SM For example, when the DTC vector address table is located in on-chip ROM, normal mode is set, and data is transferred from the on-chip ROM to an internal I/O register, the time required for the DTC operation is 14 states. The time from activation to the end of the data write is 11 states. Page 208 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 8.3.11 Section 8 Data Transfer Controller (DTC) Procedures for Using DTC Activation by Interrupt: The procedure for using the DTC with interrupt activation is as follows: [1] Set the MRA, MRB, SAR, DAR, CRA, and CRB register information in the on-chip RAM. [2] Set the start address of the register information in the DTC vector address. [3] Set the corresponding bit in DTCER to 1. [4] Set the enable bits for the interrupt sources to be used as the activation sources to 1. The DTC is activated when an interrupt used as an activation source is generated. [5] After the end of one data transfer, or after the specified number of data transfers have ended, the DTCE bit is cleared to 0 and a CPU interrupt is requested. If the DTC is to continue transferring data, set the DTCE bit to 1. Activation by Software: The procedure for using the DTC with software activation is as follows: [1] Set the MRA, MRB, SAR, DAR, CRA, and CRB register information in the on-chip RAM. [2] Set the start address of the register information in the DTC vector address. [3] Check that the SWDTE bit is 0. [4] Write 1 to SWDTE bit and the vector number to DTVECR. [5] Check the vector number written to DTVECR. [6] After the end of one data transfer, if the DISEL bit is 0 and a CPU interrupt is not requested, the SWDTE bit is cleared to 0. If the DTC is to continue transferring data, set the SWDTE bit to 1. When the DISEL bit is 1, or after the specified number of data transfers have ended, the SWDTE bit is held at 1 and a CPU interrupt is requested. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 209 of 1126 Section 8 Data Transfer Controller (DTC) 8.3.12 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Examples of Use of the DTC Normal Mode: An example is shown in which the DTC is used to receive 128 bytes of data via the SCI. [1] Set MRA to fixed source address (SM1 = SM0 = 0), incrementing destination address (DM1 = 1, DM0 = 0), normal mode (MD1 = MD0 = 0), and byte size (Sz = 0). The DTS bit can have any value. Set MRB for one data transfer by one interrupt (CHNE = 0, DISEL = 0). Set the SCI RDR address in SAR, the start address of the RAM area where the data will be received in DAR, and 128 (H'0080) in CRA. CRB can be set to any value. [2] Set the start address of the register information at the DTC vector address. [3] Set the corresponding bit in DTCER to 1. [4] Set the SCI to the appropriate receive mode. Set the RIE bit in SCR to 1 to enable the reception complete (RXI) interrupt. Since the generation of a receive error during the SCI reception operation will disable subsequent reception, the CPU should be enabled to accept receive error interrupts. [5] Each time reception of one byte of data ends on the SCI, the RDRF flag in SSR is set to 1, an RXI interrupt is generated, and the DTC is activated. The receive data is transferred from RDR to RAM by the DTC. DAR is incremented and CRA is decremented. The RDRF flag is automatically cleared to 0. [6] When CRA becomes 0 after the 128 data transfers have ended, the RDRF flag is held at 1, the DTCE bit is cleared to 0, and an RXI interrupt request is sent to the CPU. The interrupt handling routine should perform wrap-up processing. Page 210 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 8 Data Transfer Controller (DTC) Chain Transfer: An example of DTC chain transfer is shown in which pulse output is performed using the PPG. Chain transfer can be used to perform pulse output data transfer and PPG output trigger cycle updating. Repeat mode transfer to the PPG's NDR is performed in the first half of the chain transfer, and normal mode transfer to the TPU's TGR in the second half. This is because clearing of the activation source and interrupt generation at the end of the specified number of transfers are restricted to the second half of the chain transfer (transfer when CHNE = 0). [1] Perform settings for transfer to the PPG's NDR. Set MRA to source address incrementing (SM1 = 1, SM0 = 0), fixed destination address (DM1 = DM0 = 0), repeat mode (MD1 = 0, MD0 = 1), and word size (Sz = 1). Set the source side as a repeat area (DTS = 1). Set MRB to chain mode (CHNE = 1, DISEL = 0). Set the data table start address in SAR, the NDRH address in DAR, and the data table size in CRAH and CRAL. CRB can be set to any value. [2] Perform settings for transfer to the TPU's TGR. Set MRA to source address incrementing (SM1 = 1, SM0 = 0), fixed destination address (DM1 = DM0 = 0), normal mode (MD1 = MD0 = 0), and word size (Sz = 1). Set the data table start address in SAR, the TGRA address in DAR, and the data table size in CRA. CRB can be set to any value. [3] Locate the TPU transfer register information consecutively after the NDR transfer register information. [4] Set the start address of the NDR transfer register information to the DTC vector address. [5] Set the bit corresponding to TGIA in DTCER to 1. [6] Set TGRA as an output compare register (output disabled) with TIOR, and enable the TGIA interrupt with TIER. [7] Set the initial output value in PODR, and the next output value in NDR. Set bits in DDR and NDER for which output is to be performed to 1. Using PCR, select the TPU compare match to be used as the output trigger. [8] Set the CST bit in TSTR to 1, and start the TCNT count operation. [9] Each time a TGRA compare match occurs, the next output value is transferred to NDR and the set value of the next output trigger period is transferred to TGRA. The activation source TGFA flag is cleared. [10] When the specified number of transfers are completed (the TPU transfer CRA value is 0), the TGFA flag is held at 1, the DTCE bit is cleared to 0, and a TGIA interrupt request is sent to the CPU. Termination processing should be performed in the interrupt handling routine. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 211 of 1126 Section 8 Data Transfer Controller (DTC) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Software Activation: An example is shown in which the DTC is used to transfer a block of 128 bytes of data by means of software activation. The transfer source address is H'1000 and the destination address is H'2000. The vector number is H'60, so the vector address is H'04C0. [1] Set MRA to incrementing source address (SM1 = 1, SM0 = 0), incrementing destination address (DM1 = 1, DM0 = 0), block transfer mode (MD1 = 1, MD0 = 0), and byte size (Sz = 0). The DTS bit can have any value. Set MRB for one block transfer by one interrupt (CHNE = 0). Set the transfer source address (H'1000) in SAR, the destination address (H'2000) in DAR, and 128 (H'8080) in CRA. Set 1 (H'0001) in CRB. [2] Set the start address of the register information at the DTC vector address (H'04C0). [3] Check that the SWDTE bit in DTVECR is 0. Check that there is currently no transfer activated by software. [4] Write 1 to the SWDTE bit and the vector number (H'60) to DTVECR. The write data is H'E0. [5] Read DTVECR again and check that it is set to the vector number (H'60). If it is not, this indicates that the write failed. This is presumably because an interrupt occurred between steps 3 and 4 and led to a different software activation. To activate this transfer, go back to step 3. [6] If the write was successful, the DTC is activated and a block of 128 bytes of data is transferred. [7] After the transfer, an SWDTEND interrupt occurs. The interrupt handling routine should clear the SWDTE bit to 0 and perform other wrap-up processing. Page 212 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 8.4 Section 8 Data Transfer Controller (DTC) Interrupts An interrupt request is issued to the CPU when the DTC finishes the specified number of data transfers, or a data transfer for which the DISEL bit was set to 1. In the case of interrupt activation, the interrupt set as the activation source is generated. These interrupts to the CPU are subject to CPU mask level and interrupt controller priority level control. In the case of activation by software, a software activated data transfer end interrupt (SWDTEND) is generated. When the DISEL bit is 1 and one data transfer has ended, or the specified number of transfers have ended, after data transfer ends, the SWDTE bit is held at 1 and an SWDTEND interrupt is generated. The interrupt handling routine should clear the SWDTE bit to 0. When the DTC is activated by software, an SWDTEND interrupt is not generated during a data transfer wait or during data transfer even if the SWDTE bit is set to 1. 8.5 Usage Notes Module Stop: When the MSTPA6 bit in MSTPCRA is set to 1, the DTC clock stops, and the DTC enters the module stop state. However, 1 cannot be written in the MSTPA6 bit while the DTC is operating. On-Chip RAM: The MRA, MRB, SAR, DAR, CRA, and CRB registers are all located in on-chip RAM. When the DTC is used, the RAME bit in SYSCR must not be cleared to 0. DTCE Bit Setting: For DTCE bit setting, use bit manipulation instructions such as BSET and BCLR. If all interrupts are masked, multiple activation sources can be set at one time by writing data after executing a dummy read on the relevant register. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 213 of 1126 Section 8 Data Transfer Controller (DTC) Page 214 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Section 9 I/O Ports 9.1 Overview The H8S/2646 Group has 13 I/O ports (ports 1 to 3, 5, A to F, H, J, and K), and two input-only port (ports 4 and 9). Table 9.1 summarizes the port functions. The pins of each port also have other functions. Each I/O port includes a data direction register (DDR) that controls input/output, a data register (DR) that stores output data, and a port register (PORT) used to read the pin states. The input-only ports do not have a DR or DDR register. Ports A to E have a built-in pull-up MOS function, and in addition to DR and DDR, have a MOS input pull-up control register (PCR) to control the on/off state of MOS input pull-up. Ports 3, and A to F include an open-drain control register (ODR) that controls the on/off state of the output buffer PMOS. When ports A to F are used as the output pins for expanded bus control signals, they can drive one TTL load plus a 50pF capacitance load. Ports other than A to F can drive one TTL load and a 30pF capacitance load. All I/O ports can drive Darlington transistors when set to output. Ports 1 and A to C can drive a LED (10 mA sink current), and some of the pins in ports A to E and F can be used as LCD driver pins. See appendix C, I/O Port Block Diagrams, for a block diagram of each port. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 215 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Table 9.1 (1) Port Functions (H8S/2646, H8S/2646R, H8S/2645) Port Description Pins Mode 4 Mode 5 Mode 6 Mode 7 Port 1 * 8-bit I/O port * Schmitttriggered input (P16, P14) P17/PO15/TIOCB2/ TCLKD P16/PO14/TIOCA2/ IRQ1 P15/PO13/TIOCB1/ TCLKC P14/PO12/TIOCA1/ IRQ0 P13/PO11/TIOCD0/ TCLKB P12/PO10/TIOCC0/ TCLKA P11/PO9/TIOCB0 P10/PO8/TIOCA0 TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, TIOCB2), PPG output pins (PO15 to PO8), and interrupt input pins (IRQ0, IRQ1), and 8-bit I/O port Port 2 * 8-bit I/O port P27/TIOCB5 P26/TIOCA5 P25/TIOCB4 P24/TIOCA4 P23/TIOCD3 P22/TIOCC3 P21/TIOCB3 P20/TIOCA3 TPU I/O pins (TIOCB5, TIOCA5, TIOCB4, TIOCA4, TIOCD3, TIOCC3, TIOCB3, TIOCA3) and 8-bit I/O port Port 3 * 8-bit I/O port P37 SCI (channels 0, 1) I/O pins (TxD0, RxD0, SCK0, TxD1, RxD1, SCK1), interrupt input pins (IRQ4, IRQ5), and 8-bit I/O port Port 4 * 8-bit input port P47/AN7 P46/AN6 P45/AN5 R44/AN4 P43/AN3 P42/AN2 P41/AN1 P40/AN0 Page 216 of 1126 P36 P35/SCK1/IRQ5 P34/RxD1 P33/TxD1 P32/SCK0/IRQ4 P31/RxD0 P30/TxD0 A/D converter analog input (AN7 to AN0) and 8-bit input port REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Port Description Pins Section 9 I/O Ports Mode 4 Mode 5 Mode 6 Mode 7 Port 5 * 3-bit I/O port P52 Port 9 * 8-bit input port P97 P96 P95 P94 P93/AN11 P92/AN10 P91/AN9 P90/AN8 A/D converter analog input (AN11 to AN8) and 8-bit input port Port A * 8-bit I/O port * Built-in MOS input pull-up * Open-drain output capability PA7/A23/SEG24 LCD segment and common output (SEG21 to LCD segment SEG24, COM1 to COM4), address output (A23 and common to A16), and 8-bit I/O port output (SEG21 to SEG24, COM1 to COM4) and 8bit I/O port Port B * 8-bit I/O port * Built-in MOS input pull-up * Open-drain output capability PB7/A15/SEG16 PB6/A14/SEG15 PB5/A13/SEG14 PB4/A12/SEG13 PB3/A11/SEG12 PB2/A10/SEG11 PB1/A9/SEG10 PB0/A8/SEG9 LCD segment output (SEG9 to SEG16), address output (A15 to A8), and 8-bit I/O port LCD segment output (SEG9 to SEG16) and 8-bit I/O port Port C * 8-bit I/O port * Built-in MOS input pull-up * Open-drain output capability PC7/A7/SEG8 PC6/A6/SEG7 PC5/A5/SEG6 PC4/A4/SEG5 PC3/A3/SEG4 PC2/A2/SEG3 PC1/A1/SEG2 PC0/A0/SEG1 Address output (A7 to A0) LCD segment output (SEG1 to SEG8) and 8-bit I/O port P51 P50 PA6/A22/SEG23 PA5/A21/SEG22 PA4/A20/SEG21 PA3/A19/COM4 PA2/A18/COM3 PA1/A17/COM2 PA0/A16/COM1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 3-bit I/O port LCD segment output (SEG1 to SEG8), address output (A7 to A0), and 8-bit I/O port Page 217 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port Description Pins Mode 6 Mode 7 PE7/D7 PE6/D6 PE5/D5 PE4/D4 PE3/D3 PE2/D2 PE1/D1 PE0/D0 8-bit I/O port in 8-bit bus mode Data bus I/O and 8-bit I/O port in 16-bit bus mode 8-bit I/O port PF7/ If DDR = 0: input port Port E * 8-bit I/O port * Built-in MOS input pull-up Port F * 7-bit I/O port Page 218 of 1126 Mode 5 8-bit I/O port PD7/D15 Port H * 8-bit I/O port Mode 4 Data bus I/O Port D * 8-bit I/O port * Built-in MOS input pull-up PD6/D14 PD5/D13 PD4/D12 PD3/D11 PD2/D10 PD1/D9 PD0/D8 If DDR = 1: output PF6/AS/SEG20 PF5/RD/SEG19 PF4/HWR/SEG18 LCD segment output (SEG18 to SEG20) and bus control signals (AS, RD, HWR) LCD segment output (SEG18 to SEG20) and I/O port PF3/LWR/ADTRG/ IRQ3 Bus control signal (LWR) and ADTRG, IRQ3 input Input port and ADTRG, IRQ3 input PF2/WAIT/SEG17 If WAITE = 0 (following reset): LCD segment output (SEG17) and input port If WAITE = 1: LCD segment output (SEG17) and WAIT input LCD segment output (SEG17) and I/O port PF0/IRQ2 IRQ2 input and I/O port PH7/PWM1H PH6/PWM1G PH5/PWM1F PH4/PWM1E PH3/PWM1D PH2/PWM1C PH1/PWM1B PH0/PWM1A Motor control PWM timer (channel 1) output pins (PWM1A to PWM1H) and 8-bit I/O port REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Port Description Pins Port J * 8-bit I/O port PJ7/PWM2H Port K * 2-bit I/O port PK7 PK6 PJ6/PWM2G PJ5/PWM2F PJ4/PWM2E PJ3/PWM2D PJ2/PWM2C PJ1/PWM2B PJ0/PWM2A Section 9 I/O Ports Mode 4 Mode 5 Mode 6 Mode 7 Motor control PWM timer (channel 2) output pins (PWM2A to PWM2H) and 8-bit I/O port 2-bit I/O port Table 9.1 (2) Port Functions (H8S/2648, H8S/2648R, H8S/2647) Port Description Pins Mode 4 Mode 5 Mode 6 Mode 7 Port 1 * 8-bit I/O port * Schmitttriggered input (P16, P14) P17/PO15/TIOCB2/ TCLKD P16/PO14/TIOCA2/ IRQ1 P15/PO13/TIOCB1/ TCLKC P14/PO12/TIOCA1/ IRQ0 P13/PO11/TIOCD0/ TCLKB P12/PO10/TIOCC0/ TCLKA P11/PO9/TIOCB0 P10/PO8/TIOCA0 TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, TIOCB2), PPG output pins (PO15 to PO8), and interrupt input pins (IRQ0, IRQ1), and 8-bit I/O port Port 2 * 8-bit I/O port P27/TIOCB5 P26/TIOCA5 P25/TIOCB4 P24/TIOCA4 P23/TIOCD3 P22/TIOCC3 P21/TIOCB3 P20/TIOCA3 TPU I/O pins (TIOCB5, TIOCA5, TIOCB4, TIOCA4, TIOCD3, TIOCC3, TIOCB3, TIOCA3) and 8-bit I/O port REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 219 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port Description Port 3 * 8-bit I/O port * Open-drain output capability Pins P37 P36 Mode 4 Mode 5 Mode 6 Mode 7 SCI (channels 0, 1) I/O pins (TxD0, RxD0, SCK0, TxD1, RxD1, SCK1), interrupt input pins (IRQ4, IRQ5), and 8-bit I/O port P35/SCK1/IRQ5 P34/RxD1 P33/TxD1 P32/SCK0/IRQ4 P31/RxD0 P30/TxD0 A/D converter analog input (AN7 to AN0) and 8-bit input port Port 4 * 8-bit input port P47/AN7 Port 5 * 3-bit I/O port P52/SCK2 P51/RxD2 P50/TxD2 SCI (channel 2) I/O pins (SCK2, RxD2, TxD2) and 3-bit I/O port Port 9 * 8-bit input port P97 A/D converter analog input (AN11 to AN8) and 8-bit input port Port A * 8-bit I/O port * Built-in MOS input pull-up * Open-drain output capability PA7/A23/SEG40 PA6/A22/SEG39 PA5/A21/SEG38 PA4/A20/SEG37 PA3/A19/COM4 PA2/A18/COM3 PA1/A17/COM2 PA0/A16/COM1 Page 220 of 1126 P46/AN6 P45/AN5 P44/AN4 P43/AN3 P42/AN2 P41/AN1 P40/AN0 P96 P95 P94 P93/AN11 P92/AN10 P91/AN9 P90/AN8 LCD segment and common output (SEG37 to LCD segment SEG40, COM1 to COM4), address output (A23 and common to A16), and 8-bit I/O port output (SEG37 to SEG40, COM1 to COM4) and 8bit I/O port REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Port Description Pins Section 9 I/O Ports Mode 4 Mode 5 Mode 6 Mode 7 LCD segment output (SEG25 to SEG32), address output (A15 to A8), and 8-bit I/O port LCD segment output (SEG25 to SEG32) and 8-bit I/O port PC7/A7/SEG24 PC6/A6/SEG23 PC5/A5/SEG22 PC4/A4/SEG21 PC3/A3/SEG20 PC2/A2/SEG19 PC1/A1/SEG18 PC0/A0/SEG17 Address output (A7 to A0) LCD segment output (SEG17 to SEG24), address output (A7 to A0), and 8-bit I/O port LCD segment output (SEG17 to SEG24) and 8-bit I/O port Port D * 8-bit I/O port * Built-in MOS input pull-up PD7 /D15/SEG16 Data bus I/O LCD segment output (SEG9 to SEG16) and data bus I/O LCD segment output (SEG17 to SEG24) and 8-bit I/O port Port E * 8-bit I/O port * Built-in MOS input pull-up PE7/D7/SEG8 PE6/D6/SEG7 PE5/D5/SEG6 PE4/D4/SEG5 PE3/D3/SEG4 PE2/D2/SEG3 PE1/D1/SEG2 PE0/D0/SEG1 Port B * 8-bit I/O port * Built-in MOS input pull-up * Open-drain output capability PB7/A15/SEG32 Port C * 8-bit I/O port * Built-in MOS input pull-up * Open-drain output capability PB6/A14/SEG31 PB5/A13/SEG30 PB4/A12/SEG29 PB3/A11/SEG28 PB2/A10/SEG27 PB1/A9/SEG26 PB0/A8/SEG25 PD6/D14/SEG15 PD5/D13/SEG14 PD4/D12/SEG13 PD3/D11/SEG12 PD2/D10/SEG11 PD1/D9/SEG10 PD0/D8/SEG9 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 LCD segment output (SEG1 to SEG8) and I/O port in 8-bit bus mode LCD segment output (SEG1 to SEG8), data bus I/O port, and I/O port in 16-bit bus mode LCD segment output (SEG1 to SEG8) and 8-bit I/O port Page 221 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port Description Port F * 7-bit I/O port Pins PF7/ Mode 4 Mode 5 Mode 6 Mode 7 If DDR = 0: input port If DDR = 1: output LCD segment output (SEG34 to SEG36) and bus control signals (AS, RD, HWR) LCD segment output (SEG34 to SEG36) and I/O port PF3/LWR/ADTRG/ IRQ3 Bus control signal (LWR) and ADTRG, IRQ3 input I/O port and ADTRG, IRQ3 input PF2/WAIT/SEG33 If WAITE = 0, BREQUE = 0 (following reset): LCD segment output (SEG33) and I/O port If WAITE = 1, BREQUE = 0: LCD segment output and WAIT input LCD segment output (SEG33) and I/O port PF0/IRQ2 IRQ2 input and I/O port Port H * 8-bit I/O port PH7/PWM1H PH6/PWM1G PH5/PWM1F PH4/PWM1E PH3/PWM1D PH2/PWM1C PH1/PWM1B PH0/PWM1A PWM (channel 1) output and 8-bit I/O port Port J * 8-bit I/O port PJ7/PWM2H PWM (channel 2) output and 8-bit I/O port Port K * 2-bit I/O port PK7 PK6 PF6/AS/SEG36 PF5/RD/SEG35 PF4/HWR/SEG34 Page 222 of 1126 PJ6/PWM2G PJ5/PWM2F PJ4/PWM2E PJ3/PWM2D PJ2/PWM2C PJ1/PWM2B PJ0/PWM2A 2-bit I/O port REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.2 Port 1 9.2.1 Overview Section 9 I/O Ports Port 1 is an 8-bit I/O port. Port 1 pins also function as PPG output pins (PO15 to PO8), TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, and TIOCB2), and external interrupt pins (IRQ0 and IRQ1). Port 1 pin functions change according to the operating mode. Figure 9.1 shows the port 1 pin configuration. P17 (I/O) / PO15 (output) / TIOCB2 (I/O) / TCLKD (input) P16 (I/O) / PO14 (output) / TIOCA2 (I/O) / IRQ1 (input) P15 (I/O) / PO13 (output) / TIOCB1 (I/O) / TCLKC (input) Port 1 P14 (I/O) / PO12 (output) / TIOCA1 (I/O) / IRQ0 (input) P13 (I/O) / PO11 (output) / TIOCD0 (I/O) / TCLKB (input) P12 (I/O) / PO10 (output) / TIOCC0 (I/O) / TCLKA (input) P11 (I/O) / PO9 (output) / TIOCB0 (I/O) P10 (I/O) / PO8 (output) / TIOCA0 (I/O) Figure 9.1 Port 1 Pin Functions REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 223 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.2.2 Register Configuration Table 9.2 shows the port 1 register configuration. Table 9.2 Port 1 Registers Address* Name Abbreviation R/W Initial Value Port 1 data direction register P1DDR W H'00 H'FE30 Port 1 data register P1DR R/W H'00 H'FF00 Port 1 register PORT1 R Undefined H'FFB0 Note: * Lower 16 bits of the address. Port 1 Data Direction Register (P1DDR) Bit : 7 6 5 4 3 2 1 0 P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR Initial value : 0 0 0 0 0 0 0 0 R/W W W W W W W W W : P1DDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port 1. P1DDR cannot be read; if it is, an undefined value will be read. Setting a P1DDR bit to 1 makes the corresponding port 1 pin an output pin, while clearing the bit to 0 makes the pin an input pin. P1DDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. Port 1 Data Register (P1DR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 P17DR P16DR P15DR P14DR P13DR P12DR P11DR P10DR 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W P1DR is an 8-bit readable/writable register that stores output data for the port 1 pins (P17 to P10). P1DR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. Page 224 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port 1 Register (PORT1) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 P17 --* P16 --* P15 --* P14 --* P13 --* P12 --* P11 --* P10 --* R R R R R R R R Note: * Determined by state of pins P17 to P10. PORT1 is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port 1 pins (P17 to P10) must always be performed on P1DR. If a port 1 read is performed while P1DDR bits are set to 1, the P1DR values are read. If a port 1 read is performed while P1DDR bits are cleared to 0, the pin states are read. After a reset and in hardware standby mode, PORT1 contents are determined by the pin states, as P1DDR and P1DR are initialized. PORT1 retains its prior state in software standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 225 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.2.3 Pin Functions Port 1 pins also function as PPG output pins (PO15 to PO8), TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, and TIOCB2), and external interrupt input pins (IRQ0 and IRQ1). Port 1 pin functions are shown in table 9.3. Table 9.3 Port 1 Pin Functions Pin Selection Method and Pin Functions P17/PO15/ TIOCB2/ TCLKD The pin function is switched as shown below according to the combination of the TPU channel 2 setting (by bits MD3 to MD0 in TMDR2, bits IOB3 to IOB0 in TIOR2, and bits CCLR1 and CCLR0 in TCR2), bits TPSC2 to TPSC0 in TCR0 and TCR5, bit NDER15 in NDERH, and bit P17DDR. TPU Channel 2 Setting Table Below (1) Table Below (2) P17DDR -- 0 1 1 NDER15 -- -- 0 1 Pin function TIOCB2 output P17 P17 PO15 input output output 1 TIOCB2 input* 2 TCLKD input* Notes: 1. TIOCB2 input when MD3 to MD0 = B'0000 or B'01xx, and IOB3 = 1. 2. TCLKD input when the setting for either TCR0 or TCR5 is: TPSC2 to TPSC0 = B'111. TCLKD input when channels 2 and 4 are set to phase counting mode. TPU Channel 2 Setting (2) (1) (2) (2) (1) (2) MD3 to MD0 B'0000, B'01xx B'0010 B'0011 IOB3 to IOB0 B'0000 B'0001 to -- B'xx00 Other than B'xx00 B'0100 B'0011 B'1xxx B'0101 to B'0111 CCLR1, -- -- -- -- Other B'10 CCLR0 than B'10 Output -- Output -- -- PWM -- compare mode 2 function output output x: Don't care Page 226 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P16/PO14/ TIOCA2/ IRQ1 The pin function is switched as shown below according to the combination of the TPU channel 2 setting (by bits MD3 to MD0 in TMDR2, bits IOA3 to IOA0 in TIOR2, and bits CCLR1 and CCLR0 in TCR2), bit NDER14 in NDERH, and bit P16DDR. TPU Channel 2 Setting Table Below (1) Table Below (2) P16DDR -- 0 1 1 NDER14 -- -- 0 1 TIOCA2 output P16 input P16 output PO14 output Pin function TIOCA2 input* 1 IRQ1 input TPU Channel 2 Setting MD3 to MD0 IOA3 to IOA0 CCLR1, CCLR0 Output function (2) (1) (2) B'0000, B'01xx B'001x B'0000 B'0001 to B'xx00 B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- -- Output compare output -- (1) (1) (2) B'0010 B'0011 Other than B'xx00 -- Other B'01 than B'01 PWM PWM -- mode 1 mode 2 2 output* output x: Don't care Notes: 1. TIOCA2 input when MD3 to MD0 = B'0000 or B'01xx, and IOA3 = 1. 2. TIOCB2 output is disabled. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 227 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P15/PO13/ TIOCB1/TCLKC The pin function is switched as shown below according to the combination of the TPU channel 1 setting (by bits MD3 to MD0 in TMDR1, bits IOB3 to IOB0 in TIOR1, and bits CCLR1 and CCLR0 in TCR1), bits TPSC2 to TPSC0 in TCR0, TCR2, TCR4, and TCR5, bit NDER13 in NDERH, and bit P15DDR. TPU Channel 1 Setting Table Below (1) Table Below (2) P15DDR -- 0 1 1 NDER13 -- -- 0 1 TIOCB1 output P15 input P15 output PO13 output Pin function TIOCB1 input* TCLKC input* 1 2 Notes: 1. TIOCB1 input when MD3 to MD0 = B'0000 or B'01xx, and IOB3 to IOB0 = B'10xx. 2. TCLKC input when the setting for either TCR0 or TCR2 is: TPSC2 to TPSC0 = B'110; or when the setting for either TCR4 or TCR5 is TPSC2 to TPSC0 = B'101. TCLKC input when channels 2 and 4 are set to phase counting mode. TPU Channel 1 Setting MD3 to MD0 IOB3 to IOB0 CCLR1, CCLR0 Output function Page 228 of 1126 (2) (1) (2) B'0000, B'01xx B'0010 -- B'0000 B'0001 to B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- -- Output compare output -- (2) B'xx00 -- -- (1) (2) B'0011 Other than B'xx00 Other B'10 than B'10 PWM -- mode 2 output x: Don't care REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P14/PO12/ TIOCA1/IRQ0 The pin function is switched as shown below according to the combination of the TPU channel 1 setting (by bits MD3 to MD0 in TMDR1, bits IOA3 to IOA0 in TIOR1, and bits CCLR1 and CCLR0 in TCR1), bit NDER12 in NDERH, and bit P14DDR. TPU Channel 1 Setting Table Below (1) Table Below (2) P14DDR -- 0 1 1 NDER12 -- -- 0 1 TIOCA1 output P14 input P14 output PO12 output Pin function TIOCA1 input* 1 IRQ0 input TPU Channel 1 Setting MD3 to MD0 IOA3 to IOA0 CCLR1, CCLR0 Output function (2) (1) (2) B'0000, B'01xx B'001x B'0000 B'0001 to B'xx00 B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- -- Output compare output -- (1) B'0010 Other than B'xx00 (1) (2) B'0011 Other than B'xx00 -- Other B'01 than B'01 PWM PWM -- mode 1 mode 2 2 output* output x: Don't care Notes: 1. TIOCA1 input when MD3 to MD0 = B'0000 or B'01xx, and IOA3 to IOA0 = B'10xx. 2. TIOCB1 output is disabled. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 229 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P13/PO11/ TIOCD0/TCLKB The pin function is switched as shown below according to the combination of the operating mode, and the TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, bits IOD3 to IOD0 in TIOR0L, and bits CCLR2 to CCLR0 in TCR0), bits TPSC2 to TPSC0 in TCR0 to TCR2, bit NDER11 in NDERH, and bit P13DDR. TPU Channel 0 Setting Table Below (1) Table Below (2) P13DDR -- 0 1 1 NDER11 -- -- 0 1 TIOCD0 output P13 input P13 output Pin function TIOCD0 input* 2 TCLKB input* PO11 output 1 Notes: 1. TIOCD0 input when MD3 to MD0 = B'0000, and IOD3 to IOD0 = B'10xx. 2. TCLKB input when the setting for TCR0 to TCR2 is: TPSC2 to TPSC0 = B'101. TCLKB input when channels 1 and 5 are set to phase counting mode. TPU Channel 0 Setting MD3 to MD0 IOD3 to IOD0 CCLR2 to CCLR0 Output function Page 230 of 1126 (2) (2) B'0000 B'0010 -- B'0000 B'0001 to B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- -- (1) Output compare output -- (2) B'xx00 -- -- (1) (2) B'0011 Other than B'xx00 Other B'110 than B'110 PWM -- mode 2 output x: Don't care REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P12/PO10/ TIOCC0/TCLKA The pin function is switched as shown below according to the combination of the operating mode, and the TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, bits IOC3 to IOC0 in TIOR0L, and bits CCLR2 to CCLR0 in TCR0), bits TPSC2 to TPSC0 in TCR0 to TCR5, bit NDER10 in NDERH, and bit P12DDR. TPU Channel 0 Setting Table Below (1) Table Below (2) P12DDR -- 0 1 1 NDER10 -- -- 0 1 TIOCC0 output P12 input P12 output PO10 output Pin function TIOCC0 input* 2 TCLKA input* TPU Channel 0 Setting MD3 to MD0 IOC3 to IOC0 CCLR2 to CCLR0 Output function (2) (1) (2) B'0000 B'001x B'0000 B'0001 to B'xx00 B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- -- Output compare output -- 1 (1) (1) (2) B'0010 B'0011 Other than B'xx00 -- PWM mode 1 3 output* Other B'101 than B'101 PWM -- mode 2 output x: Don't care Notes: 1. TIOCC0 input when MD3 to MD0 = B'0000, and IOC3 to IOC0 = B'10xx. 2. TCLKA input when the setting for TCR0 to TCR5 is: TPSC2 to TPSC0 = B'100. TCLKA input when channels 1 and 5 are set to phase counting mode. 3. TIOCD0 output is disabled. When BFA = 1 or BFB = 1 in TMDR0, output is disabled and setting (2) applies. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 231 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P11/PO9/TIOCB0 The pin function is switched as shown below according to the combination of the operating mode, and the TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, and bits IOB3 to IOB0 in TIOR0H), bit NDER9 in NDERH, and bit P11DDR. TPU Channel 0 Setting Table Below (1) Table Below (2) P11DDR -- 0 1 1 NDER9 -- -- 0 1 TIOCB0 output P11 input P11 output PO9 output Pin function TIOCB0 input* Note: * TIOCB0 input when MD3 to MD0 = B'0000, and IOB3 to IOB0 = B'10xx. TPU Channel 0 Setting MD3 to MD0 IOB3 to IOB0 CCLR2 to CCLR0 Output function Page 232 of 1126 (2) (1) (2) B'0000 B'0010 -- B'0000 B'0001 to B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- -- Output compare output -- (2) B'xx00 -- -- (1) (2) B'0011 Other than B'xx00 Other B'010 than B'010 PWM -- mode 2 output x: Don't care REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Pin Section 9 I/O Ports Selection Method and Pin Functions P10/PO8/TIOCA0 The pin function is switched as shown below according to the combination of the operating mode, and the TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, bits IOA3 to IOA0 in TIOR0H, and bits CCLR2 to CCLR0 in TCR0), bit NDER8 in NDERH, SAE0 bit in DMABCRH, and bit P10DDR. TPU Channel 0 Setting Table Below (1) Table Below (2) P10DDR -- 0 1 1 NDER8 -- -- 0 1 TIOCA0 output P10 input P10 output PO8 output Pin function TIOCA0 input* TPU Channel 0 Setting MD3 to MD0 IOA3 to IOA0 CCLR2 to CCLR0 Output function (2) (2) B'0000 B'001x B'0000 B'0001 to B'xx00 B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- -- (1) Output compare output -- 1 (1) (1) (2) B'0010 B'0011 Other than B'xx00 -- PWM mode 1 2 output* Other B'001 than B'001 PWM -- mode 2 output x: Don't care Notes: 1. TIOCA0 input when MD3 to MD0 = B'0000, and IOA3 to IOA0 = B'10xx. 2. TIOCB0 output is disabled. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 233 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.3 Port 2 9.3.1 Overview Port 2 is an 8-bit I/O port. Port 2 also functions as TPU I/O pins (TIOCB5, TIOCA5, TIOCB4, TIOCA4, TIOCD3, TIOCC3, TIOCB3, TIOCA3). The pin functions of port 2 change with the operating mode. Figure 9.2 shows the pin functions for port 2. Port 2 pins P27 (I/O) / TIOCB5 (I/O) P26 (I/O) / TIOCA5 (I/O) P25 (I/O) / TIOCB4 (I/O) P24 (I/O) / TIOCA4 (I/O) Port 2 P23 (I/O) / TIOCD3 (I/O) P22 (I/O) / TIOCC3 (I/O) P21 (I/O) / TIOCB3 (I/O) P20 (I/O) / TIOCA3 (I/O) Figure 9.2 Port 2 Pin Functions 9.3.2 Register Configuration Table 9.4 shows the configuration of port 3 registers. Table 9.4 Port 2 Register Configuration Name Abbreviation R/W Initial Value Address* Port 2 data direction register P2DDR W H'00 H'FE31 Port 2 data register P2DR R/W H'00 H'FF01 Port 2 register PORT2 R Undefined H'FFB1 Note: * Lower 16 bits of the address. Page 234 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port 2 Data Direction Register (P2DDR) Bit : 7 6 5 4 3 2 1 0 P27DDR P26DDR P25DDR P24DDR P23DDR P22DDR P21DDR P20DDR Initial value : 0 0 0 0 0 0 0 0 R/W W W W W W W W W : P2DDR is an 8-bit write-only register that specifies whether individual bits are input or output for each of the pins in port 2. It is not possible to read it. An undefined value is returned if an attempt is made to read it. Setting one of the bits of P2DDR to 1 sets the corresponding pin in port 2 to output, and clearing the bit to 0 sets the corresponding pin to input. P2DDR is initialized to H'00 if a reset occurs and in the hardware standby mode. The previous values are retained by P2DDR in the software standby mode. Port 2 Data Register (P2DR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 P27DR P26DR P25DR P24DR P23DR P22DR P21DR P20DR 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W P2DR is an 8-bit readable/writable register that stores output data for the port 2 pins (P27 to P20). P2DR is initialized to H'00 if a reset occurs and in the hardware standby mode. The previous values are retained in the software standby mode. Port 2 Register (PORT2) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 P27 --* P26 --* P25 --* P24 --* P23 --* P22 --* P21 --* P20 --* R R R R R R R R Note: * Determined by state of pins P27 to P20. PORT2 is an 8-bit read-only register. It is not possible to write to it. It reflects the states of the pins. Always write output data from the port 2 pins (P27 to P20) to P2DR. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 235 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports If P2DDR is set to 1, the value of P2DR is returned when port 2 is read. If P2DDR is cleared to 0, the pin states are returned when port 2 is read. P2DDR and P2DR are initialized if a reset occurs and in the hardware standby mode, so the content of PORT2 is determined by the pin states. The previous states are retained in the software standby mode. 9.3.3 Pin Functions The port 2 pins also function as TPU I/O pins (TIOCB5, TIOCA5, TIOCB4, TIOCA4, TIOCD3, TIOCC3, TIOCB3, TIOCA3). The pin functions of port 2 change with the operating mode. Table 9.5 lists the pin functions for port 2. Table 9.5 Port 2 Pin Functions Pin Selection Method and Pin Functions P27/TIOCB5 Switches as follows according to the combinations of the TPU channel 5 setting made using bits MD3 to MD0 of TMDR5, bits IOB3 to IOB0 of TIOR5, and bits CCLR1 and CCLR0 of TCR5, as well as the P27DDR bit. TPU Channel 5 Setting Table Below (1) Table Below (2) P27DDR -- 0 1 Pin function TIOCB5 output P27 input P27 output TIOCB5 input* Note: * TIOCB5 input if MD3 to MD0 = 0, B'0000, B'01xx, and IOB = 1. TPU Channel 5 Setting MD3 to MD0 IOB3 to IOB0 CCLR1, CCLR0 Output function Page 236 of 1126 (2) (1) (2) B'0000, B'01xx B'0010 -- B'0000 B'0001 to B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- -- Output compare output -- (2) B'xx00 -- -- (1) (2) B'0011 Other than B'xx00 Other than B'10 PWM mode 2 output B'10 -- REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P26/TIOCA5 Switches as follows according to the combinations of the TPU channel 5 setting made using bits MD3 to MD0 of TMDR5, bits IOA3 to IOA0 of TIOR5, and bits CCLR1 and CCLR0 of TCR5, as well as the P26DDR bit. TPU Channel 5 Setting Table Below (1) P26DDR Pin function TPU Channel 5 Setting MD3 to MD0 IOA3 to IOA0 CCLR1, CCLR0 Output function -- 0 TIOCA5 output P26 input* Jun 10, 2010 -- 1 P26 output TIOCA5 input* (2) (1) (2) B'0000, B'01xx B'001x B'0000 B'0001 to B'xx00 B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- Output compare output Note: * TIOCB5 output prohibited. REJ09B0257-0700 Rev. 7.00 Table Below (2) -- (1) (1) (2) B'0010 B'0011 Other than B'xx00 -- Other than B'01 PWM PWM mode 1 mode 2 output* output B'01 -- Page 237 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P25/TIOCB4 Switches as follows according to the combinations of the TPU channel 4 setting made using bits MD3 to MD0 of TMDR4, bits IOB3 to IOB0 of TIOR4, and bits CCR1 and CCR0 of TCR4, as well as the P25DDR bit. TPU Channel 4 Setting Table Below (1) P25DDR Pin function Table Below (2) -- 0 1 TIOCB4 output P25 input P25 output TIOCB4 input TPU Channel 4 Setting MD3 to MD0 IOB3 to IOB0 CCLR1, CCLR0 Output function Page 238 of 1126 (2) (1) (2) B'0000, B'01xx B'0010 -- B'0000 B'0001 to B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- -- Output compare output -- (2) B'xx00 -- -- (1) (2) B'0011 Other than B'xx00 Other than B'10 PWM mode 2 output B'10 -- REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P24/TIOCA4 Switches as follows according to the combinations of the TPU channel 4 setting made using bits MD3 to MD0 of TMDR4, bits IOA3 to IOA0 of TIOR4, and bits CCR1 and CCR0 of TCR4, as well as the P24DDR bit. TPU Channel 4 Setting Table Below (1) P24DDR Pin function TPU Channel 4 Setting MD3 to MD0 IOA3 to IOA0 CCLR1, CCLR0 Output function -- 0 TIOCA4 output P24 input* Jun 10, 2010 -- 1 P24 output TIOCA4 input* (2) (1) (2) B'0000, B'01xx B'001x B'0000 B'0001 to B'xx00 B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- Output compare output Note: * TIOCB4 output prohibited. REJ09B0257-0700 Rev. 7.00 Table Below (2) -- (1) B'0010 Other than B'xx00 -- (1) (2) B'0011 Other than B'xx00 Other than B'01 PWM PWM mode 1 mode 2 output* output B'01 -- Page 239 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P23/TIOCD3 Switches as follows according to the combinations of the TPU channel 3 setting made using bits MD3 to MD0 of TMDR3, bits IOD3 to IOD0 of TIOR3L, and bits CCLR2 to CCLR0 of TCR3, as well as the P23DDR bit. TPU Channel 3 Setting Table Below (1) P23DDR Pin function Table Below (2) -- 0 1 TIOCD3 output P23 input P23 output TIOCD3 input TPU Channel 3 Setting MD3 to MD0 IOD3 to IOD0 CCLR2 to CCLR0 Output function Page 240 of 1126 (2) (1) (2) B'0000 B'001x -- B'0000 B'0001 to B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- -- Output compare output -- (2) B'0010 Other than B'xx00 -- -- (1) (2) B'0011 Other than B'xx00 Other than B'110 PWM mode 2 output B'110 -- REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P22/TIOCC3 Switches as follows according to the combinations of the TPU channel 3 setting made using bits MD3 to MD0 of TMDR3, bits IOC3 to IOC0 of TIOR3L, and bits CCR2 to CCR0 of TCR3, as well as the P22DDR bit. TPU Channel 3 Setting Table Below (1) P22DDR Pin function Table Below (2) -- 0 1 TIOCC3 output P22 input P22 output TIOCC3 input TPU Channel 3 Setting MD3 to MD0 IOC3 to IOC0 CCLR2 to CCLR0 Output function (2) (1) (2) B'0000 B'001x B'0000 B'0001 to B'xx00 B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- Output compare output Note: * TIOCD3 output prohibited. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 -- -- (1) (1) (2) B'0010 B'0011 Other than B'xx00 -- PWM mode 1 output* Other than B'101 PWM mode 2 output B'101 -- Page 241 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P21/TIOCB3 Switches as follows according to the combinations of the TPU channel 3 setting made using bits MD3 to MD0 of TMDR3, bits IOB3 to IOB0 of TIOR3L, and bits CCR2 to CCR0 of TCR3, as well as the P21DDR bit. TPU Channel 3 Setting Table Below (1) P21DDR Pin function Table Below (2) -- 0 1 TIOCB3 output P21 input P21 output TIOCB3 input TPU Channel 3 Setting MD3 to MD0 IOB3 to IOB0 CCLR2 to CCLR0 Output function Page 242 of 1126 (2) (1) (2) B'0000 B'0010 -- B'0000 B'0001 to B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- -- Output compare output -- (2) B'xx00 -- -- (1) (2) B'0011 Other than B'xx00 Other than B'010 PWM mode 2 output B'010 -- REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P20/TIOCA3 Switches as follows according to the combinations of the TPU channel 3 setting made using bits MD3 to MD0 of TMDR3, bits IOA3 to IOA0 of TIOR3L, and bits CCR2 to CCR0 of TCR3, as well as the P20DDR bit. TPU Channel 3 Setting Table Below (1) P20DDR Pin function Table Below (2) -- 0 1 TIOCA3 output P20 input P20 output TIOCA3 input TPU Channel 0 Setting MD3 to MD0 IOA3 to IOA0 CCLR2 to CCLR0 Output function (2) (1) (2) B'0000 B'001x B'0000 B'0001 to B'xx00 B'0100 B'0011 B'1xxx B'0101 to B'0111 -- -- -- Output compare output Note: * TIOCB3 output prohibited. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 -- -- (1) (1) (2) B'0010 B'0011 Other than B'xx00 -- PWM mode 1 output* Other than B'001 PWM mode 2 output B'001 -- Page 243 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.4 Port 3 9.4.1 Overview Port 3 is an 8-bit I/O port. Port 3 is a multi-purpose port for SCI I/O pins (TxD0, RxD0, SCK0, TxD1, RxD1, SCK1), and external interrupt input pins (IRQ4, IRQ5). All of the port 3 pin functions have the same operating mode. The configuration for each of the port 3 pins is shown in figure 9.3. Port 3 pins P37 (I/O) P36 (I/O) P35 (I/O) / SCK1 (I/O) / IRQ5 (input) P34 (I/O) / RxD1 (input) Port 3 P33 (I/O) / TxD1 (output) P32 (I/O) / SCK0 (I/O) / IRQ4 (input) P31 (I/O) / RxD0 (input) P30 (I/O) / TxD0 (output) Figure 9.3 Port 3 Pin Functions 9.4.2 Register Configuration Table 9.6 shows the configuration of port 3 registers. Table 9.6 Port 3 Register Configuration Name Abbreviation R/W Initial Value Address* Port 3 data direction register P3DDR W H'00 H'FE32 Port 3 data register P3DR R/W H'00 H'FF02 Port 3 register PORT3 R Undefined H'FFB2 Port 3 open drain control register P3ODR R/W H'00 H'FE46 Note: * Lower 16 bits of the address. Page 244 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port 3 Data Direction Register (P3DDR) Bit 7 6 5 4 3 2 1 0 P37DDR P36DDR P35DDR P34DDR P33DDR P32DDR P31DDR P30DDR Initial value 0 0 0 0 0 0 0 0 Read/Write W W W W W W W W P3DDR is an 8-bit write-dedicated register, which specifies the I/O for each port 3 pin by bit. Read is disenabled. If a read is carried out, undefined values are read out. By setting P3DDR to 1, the corresponding port 3 pins become output, and be clearing to 0 they become input. P3DDR is initialized to H'00 by a reset and in hardware standby mode. The previous state is maintained in software standby mode. SCI is initialized, so the pin state is determined by the specification of P3DDR and P3DR. Port 3 Data Register (P3DR) Bit 7 6 5 4 3 2 1 0 P37DR P36DR P35DR P34DR P33DR P32DR P31DR P30DR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W P3DR is an 8-bit readable/writable register, which stores the output data of port 3 pins (P37 to P30). P3DR is initialized to H'00 by a reset and in hardware standby mode. The previous state is maintained in software standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 245 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port 3 Register (PORT3) Bit 7 6 5 4 3 2 1 0 P37 P36 P35 P34 P33 P32 P31 P30 Initial value --* --* --* --* --* --* --* --* Read/Write R R R R R R R R Note: * Determined by the state of pins P37 to P30. PORT3 is an 8-bit read-dedicated register, which reflects the state of pins. Write is disenabled. Always carry out writing off output data of port 3 pins (P37 to P30) to P3DR without fail. When P3DDR is set to 1, if port 3 is read, the values of P3DR are read. When P3DDR is cleared to 0, if port 3 is read, the states of pins are read out. P3DDR and P3DR are initialized by a reset and in hardware standby mode, so PORT3 is determined by the state of the pins. The previous state is maintained in software standby mode. Port 3 Open Drain Control Register (P3ODR) Bit 7 6 5 4 3 2 1 0 P37ODR P36ODR P35ODR P34ODR P33ODR P32ODR P31ODR P30ODR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W P3ODR is an 8-bit readable/writable register, which controls the on/off of port 3 pins (P37 to P30). By setting P3ODR to 1, the port 3 pins become an open drain output, and when cleared to 0 they become CMOS output. P3ODR is initialized to H'00 by a reset and in hardware standby mode. The previous state is maintained in software standby mode. Page 246 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.4.3 Section 9 I/O Ports Pin Functions The port 3 pins also function as SCI I/O input pins (TxD0, RxD0, SCK0, TxD1, RxD1, and SCK1) and as external interrupt input pins (IRQ4 and IRQ5). The functions of port 3 pins are shown in table 9.7. Table 9.7 Port 3 Pin Functions Pin Selection Method and Pin Functions P37 Switches as follows according to the setting of the P37DDR bit. P37DDR Pin function 0 1 P37 input pin P37 output pin* Note: * When P37ODR = 1, it becomes NMOS open drain output. P36 Switches as follows according to the setting of the P36DDR bit. P36DDR Pin function 0 1 P36 input pin P36 output pin* Note: * When P36ODR = 1, it becomes NMOS open drain output. P35/SCK1/ IRQ5 Switches as follows according to the combinations of the C/A bit of SMR1, the CKE0 and CKE1 bits of SCR, and the P35DDR bit. CKE1 0 C/A 0 CKE0 P35DDR Pin function 1 0 1 1 -- -- -- 0 1 -- -- -- P35 input pin P35 output pin* SCK1 output pin* SCK1 output pin* SCK1 input pin IRQ5 input Note: * When P35ODR = 1, it becomes NMOS open drain output. P34/RxD1 Switches as follows according to combinations of bit RE of SCR1 and bit P34DDR. RE P34DDR Pin function 0 1 0 1 -- P34 input pin P34 output pin* RxD1 input pin Note: * When P34ODR = 1, it becomes NMOS open drain tray. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 247 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions P33/TxD1 Switches as follows according to combinations of bit TE of SCR1 and bit P33DDR. TE 0 P33DDR Pin function 1 0 1 -- P33 input pin P33 output pin* TxD1 output pin* Note: * When P33ODR = 1, it becomes NMOS open drain output. P32/SCK0/ IRQ4 Switches as follows according to combinations of bit C/A of SMR0, bits CKE0 and CKE1 of SCR0, and bit P32DDR. CKE1 0 C/A 0 CKE0 P32DDR Pin function 1 1 -- 1 -- -- -- -- -- 0 0 1 P32 input pin P32 output pin SCK0 output SCK0 output pin* pin* SCK0 input pin IRQ4 input Note: * When P32ODR = 1, it becomes NMOS open drain output. P31/RxD0 Switches as follows according to combinations of bit RE of SCR0 and bit P31DDR. RE P31DDR Pin function 0 1 0 1 -- P31 input pin P31 output pin* RxD0 input pin Note: * When P31ODR = 1, it becomes NMOS open drain output. P30/TxD0 Switches as follows according to combinations of bit TE of SCR0 and bit P30DDR. TE P30DDR Pin function 0 1 0 1 -- P30 input pin P30 output pin* TxD0 output pin* Note: * When P30ODR = 1, it becomes NMOS open drain output. Page 248 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.5 Port 4 9.5.1 Overview Section 9 I/O Ports Port 4 is an 8-bit input-only port. Port 4 pins also function as A/D converter analog input pins (AN0 to AN7). Port 4 pin functions are the same in all operating modes. Figure 9.4 shows the port 4 pin configuration. Port 4 pins P47 (input) / AN7 (input) P46 (input) / AN6 (input) P45 (input) / AN5 (input) Port 4 P44 (input) / AN4 (input) P43 (input) / AN3 (input) P42 (input) / AN2 (input) P41 (input) / AN1 (input) P40 (input) / AN0 (input) Figure 9.4 Port 4 Pin Functions REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 249 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.5.2 Register Configuration Table 9.8 shows the port 4 register configuration. Port 4 is an input-only port, and does not have a data direction register or data register. Table 9.8 Port 4 Registers Name Abbreviation R/W Initial Value Address* Port 4 register PORT4 R Undefined H'FFB3 Note: * Lower 16 bits of the address. Port 4 Register (PORT4): The pin states are always read when a port 4 read is performed. Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 P47 --* P46 --* P45 --* P44 --* P43 --* P42 --* P41 --* P40 --* R R R R R R R R Note: * Determined by state of pins P47 to P40. 9.5.3 Pin Functions Port 4 pins also function as A/D converter analog input pins (AN0 to AN7). Page 250 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.6 Port 5 9.6.1 Overview Section 9 I/O Ports Port 5 is a 3-bit I/O port. The pin functions of port 5 are the same in all operating modes. Figures 9.5 (1) and 9.5 (2) show the pin functions for port 5. Port 5 pins Port 5 P52 (I/O) P51 (I/O) P50 (I/O) Figure 9.5 (1) Port 5 Pin Functions (H8S/2646, H8S/2646R, H8S/2645) Port 5 pins Port 5 P52 (I/O) / SCK2 (I/O) P51 (I/O) / RxD2 (input) P50 (I/O) / TxD2 (output) Figure 9.5 (2) Port 5 Pin Functions (H8S/2648, H8S/2648R, H8S/2647) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 251 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.6.2 Register Configuration Table 9.9 shows the port 5 register configuration. Table 9.9 Port 5 Register Configuration Name Abbreviation R/W 2 Initial Value* Address* Port 5 data direction register P5DDR W H'0 H'FE34 Port 5 data register P5DR R/W H'0 H'FF04 Port 5 register PORT5 R H'0 H'FFB4 1 Notes: 1. Lower 16 bits of the address. 2. Value of bits 2 to 0. Port 5 Data Direction Register (P5DDR) Bit : 7 6 5 4 3 -- -- -- -- -- 2 1 0 P52DDR P51DDR P50DDR Initial value : Undefined Undefined Undefined Undefined Undefined 0 0 0 R/W W W W : -- -- -- -- -- P5DDR is an 8-bit write-only register that specifies whether individual bits are input or output for each of each of the pins in port 5. It is not possible to read it. An undefined value is returned if an attempt is made to read it. Setting one of the bits of P5DDR to 1 sets the corresponding pin in port 5 to output, and clearing the bit to 0 sets the corresponding pin to input. P5DDR is initialized to H'0 (bits 2 to 0) if a reset occurs and in the hardware standby mode. The previous values are retained by P5DDR in the software standby mode. Since SCI is initialized in the H8S/2648, H8S/2648R, and H8S/2647, the pin states are determined by the by the P5DDR and P5DR settings. Page 252 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port 5 Data Register (P5DR) Bit : 7 6 5 4 3 2 1 0 -- -- -- -- -- P52DR P51DR P50DR Initial value : Undefined Undefined Undefined Undefined Undefined R/W : -- -- -- -- -- 0 0 0 R/W R/W R/W P5DR is an 8-bit readable/writable register that stores output data for the port 5 pins (P52 to P50). P5DR is initialized to H'00 if a reset occurs and in the hardware standby mode. The previous values are retained in the software standby mode. Port 5 Register (PORT5) Bit : 7 6 5 4 3 2 1 0 -- -- -- -- -- P52 --* P51 --* P50 --* R R R Initial value : Undefined Undefined Undefined Undefined Undefined R/W : -- -- -- -- -- Note: * Determined by state of pins P52 to P50. PORT5 is an 8-bit read-only register that reflects the states of the pins. It is not possible to write to it. Always write output data from the port 5 pins (P52 to P50) to P5DR. If P5DDR is set to 1, the value of P5DR is returned when port 5 is read. If P5DDR is cleared to 0, the pin states are returned when port 5 is read. P5DDR and P5DR are initialized if a reset occurs and in the hardware standby mode, so the content of PORT5 is determined by the pin states. The previous states are retained in the software standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 253 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.6.3 Pin Functions Tables 9.10 (1) and 9.10 (2) list the pin functions for port 5. In the H8S/2648, H8S/2648R, and H8S/2647, port 5 pins also function as SCI I/O pins (TxD2, RxD2, and SCK2). Table 9.10 (1) Port 5 Pin Functions (H8S/2646, H8S/2646R, H8S/2645) Pin Selection Method and Pin Functions P52 Switches as follows according to the setting of the P52DDR bit. P52DDR Pin function P51 Pin function 0 1 P51 input pin P51 output pin Switches as follows according to the setting of the P50DDR bit. P50DDR Pin function Page 254 of 1126 1 P52 output pin Switches as follows according to the setting of the P51DDR bit. P51DDR P50 0 P52 input pin 0 1 P50 input pin P50 output pin REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Table 9.10 (2) Section 9 I/O Ports Port 5 Pin Functions (H8S/2648, H8S/2648R, H8S/2647) Pin Selection Method and Pin Functions P52/SCK2 Switches as follows according to a combination of the C/A bit in SMR and bits CKE0 and CKE1 in SCR of SCI2, and the P52DDR bit. CKE1 0 C/A 0 CK0 P52DDR 1 1 -- 1 -- -- -- -- -- 0 0 0 Pin function P52 input pin P52 output SCK2 output SCK2 output SCK2 input pin pin pin pin P51/RxD2 Switches as follows according to a combination of the RE bit in SCR of SCI2 and the P51DDR bit. RE P51DDR Pin function P50/TxD2 0 0 1 -- P51 input pin P51 output pin RxD2 input pin Switches as follows according to a combination of the TE bit in SCR of SCI2 and the P50DDR bit. TE P50DDR Pin function REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 1 0 1 0 1 -- P50 input pin P50 output pin P50 output pin Page 255 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.7 Port 9 9.7.1 Overview Port 9 is an 8-bit input-only port. Port 9 pins also function as A/D converter analog input pins (AN8 to AN11). Port 9 pin functions are the same in all operating modes. Figure 9.6 shows the port 9 pin configuration. Port 9 pins P97 (input) P96 (input) P95 (input) Port 9 P94 (input) P93 (input) / AN11 (input) P92 (input) / AN10 (input) P91 (input) / AN9 (input) P90 (input) / AN8 (input) Figure 9.6 Port 9 Pin Functions Page 256 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.7.2 Section 9 I/O Ports Register Configuration Table 9.11 shows the port 9 register configuration. Port 9 is an input-only port, and does not have a data direction register or data register. Table 9.11 Port 9 Registers Name Abbreviation R/W Initial Value Address* Port 9 register PORT9 R Undefined H'FFB8 Note: * Lower 16 bits of the address. Port 9 Register (PORT9): The pin states are always read when a port 9 read is performed. Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 P97 --* P96 --* P95 --* P94 --* P93 --* P92 --* P91 --* P90 --* R R R R R R R R Note: * Determined by state of pins P97 to P90. 9.7.3 Pin Functions Port 9 pins also function as A/D converter analog input pins (AN8 to AN11). REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 257 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.8 Port A 9.8.1 Overview Port A is an 8-bit I/O port. Port A pins also function as address bus outputs and LCD driver output pins (H8S/2646, H8S/2646R, H8S/2645: SEG24 to SEG21 and COM4 to COM1, H8S/2648, H8S/2648R, H8S/2647: SEG40 to Seg37 and COM4 to COM1). The pin functions change according to the operating mode. Port A has a built-in MOS input pull-up function that can be controlled by software. Figure 9.7 shows the port A pin configuration. Port A pins Pin functions in modes 4 to 6 PA7 / A23 / SEG24*1 / SEG40*2 *1 PA6 (I/O) / A22 (output) / SEG23*1 (output) / SEG39*2 (output) PA5 / A21 / SEG22*1 / SEG38*2 PA5 (I/O) / A21 (output) / SEG22*1 (output) / SEG38*2 (output) PA4 / A20 / SEG21*1 / SEG37*2 PA4 (I/O) / A20 (output) / SEG21*1 (output) / SEG37*2 (output) PA6 / A22 / SEG23 Port A PA7 (I/O) / A23 (output) / SEG24*1 (output) / SEG40*2 (output) *2 *1 / SEG39 *2 PA3 (I/O) / A19 (output) / COM4*1 (output) / COM4*2 (output) PA2 / A18 / COM3*1 / COM3*2 PA2 (I/O) / A18 (output) / COM3*1 (output) / COM3*2 (output) PA1 / A17 / COM2*1 / COM2*2 PA1 (I/O) / A17 (output) / COM2*1 (output) / COM2*2 (output) PA3 / A19 / COM4 *1 PA0 / A16 / COM1 / COM4 / COM1 *2 PA0 (I/O) / A16 (output) / COM1*1 (output) / COM1*2 (output) Mode 7 pins PA7 (I/O) / SEG24*1 (output) / SEG40*2 (output) PA6 (I/O) / SEG23*1 (output) / SEG39*2 (output) PA5 (I/O) / SEG22*1 (output) / SEG38*2 (output) PA4 (I/O) / SEG21*1 (output) / SEG37*2 (output) PA3 (I/O) / COM4*1 (output) / COM4*2 (output) PA2 (I/O) / COM3*1 (output) / COM3*2 (output) PA1 (I/O) / COM2*1 (output) / COM2*2 (output) PA0 (I/O) / COM1*1 (output) / COM1*2 (output) Notes: 1. 2. In the H8S/2646, H8S/2646R, and H8S/2645. In the H8S/2648, H8S/2648R, and H8S/2647. Figure 9.7 Port A Pin Functions Page 258 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.8.2 Section 9 I/O Ports Register Configuration Table 9.12 shows the port A register configuration. Table 9.12 Port A Registers Name Abbreviation R/W Initial Value Address* Port A data direction register PADDR W H'00 H'FE39 Port A data register PADR R/W H'00 H'FF09 Port A register PORTA R Undefined H'FFB9 Port A MOS pull-up control register PAPCR R/W H'00 H'FE40 Port A open-drain control register PAODR R/W H'00 H'FE47 Note: * Lower 16 bits of the address. Port A Data Direction Register (PADDR) Bit : 7 6 5 4 3 2 1 0 PA7DDR PA6DDR PA5DDR PA4DDR PA3DDR PA2DDR PA1DDR PA0DDR Initial value : 0 0 0 0 0 0 0 0 R/W W W W W W W W W : PADDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port A. PADDR cannot be read; if it is, an undefined value will be read. PADDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. The OPE bit in SBYCR is used to select whether the address output pins retain their output state or become high-impedance when a transition is made to software standby mode. * Modes 4 to 6 These function as segment pins if the values of bits SGS3 to SGS0 of LPCR, the LCD driver, are other than B'0000. If the value of bits SGS3 to SGS0 is B'0000, the port A pins function as address outputs as specified by the setting of bits AE3 to AE0 of PFCR, regardless of the values of bits PA7DDR to PA0DDR. Also, when the pins are not used as address outputs, setting a PADDR bit to 1 makes the corresponding port A pin an output port, and clearing a bit to 0 makes the corresponding pin an input port. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 259 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports * Mode 7 These function as segment pins if the values of bits SGS3 to SGS0 of LPCR, the LCD driver, are other than B'0000. If the value of bits SGS3 to SGS0 is B'0000, setting a PADDR bit to 1 makes the corresponding port A pin an output port, and clearing a bit to 0 makes the corresponding pin an input port. Port A Data Register (PADR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PA7DR PA6DR PA5DR PA4DR PA3DR PA2DR PA1DR PA0DR 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PADR is an 8-bit readable/writable register that stores output data for the port A pins (PA7 to PA0). PADR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. Port A Register (PORTA) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PA7 --* PA6 --* PA5 --* PA4 --* PA3 --* PA2 --* PA1 --* PA0 --* R R R R R R R R Note: * Determined by state of pins PA7 to PA0. PORTA is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port A pins (PA7 to PA0) must always be performed on PADR. Reading a pin being used as an LCD driver returns an undefined value. If a port A read is performed while PADDR bits are set to 1, the PADR values are read. If a port A read is performed while PADDR bits are cleared to 0, the pin states are read. After a reset and in hardware standby mode, PORTA contents are determined by the pin states, as PADDR and PADR are initialized. PORTA retains its prior state in software standby mode. Page 260 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port A MOS Pull-Up Control Register (PAPCR) Bit : 7 6 5 4 3 2 1 0 PA7PCR PA6PCR PA5PCR PA4PCR PA3PCR PA2PCR PA1PCR PA0PCR Initial value : R/W : 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PAPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port A on an individual bit basis. In modes 4 to 6, if a pin is in the input state in accordance with the settings in PFCR, in LPCR, and in DDR, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for that pin. In mode 7, if a pin is in the input state in accordance with the settings in LPCR and DDR, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for that pin. PAPCR is initialized by a reset or to H'00, and in hardware standby mode. It retains its prior state in software standby mode. Port A Open Drain Control Register (PAODR) Bit : 7 6 5 4 3 2 1 0 PA7ODR PA6ODR PA5ODR PA4ODR PA3ODR PA2ODR PA1ODR PA0ODR Initial value : R/W : 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PAODR is an 8-bit readable/writable register that controls whether PMOS is on or off for each port A pin (PA7 to PA0). When pins are not address and LCD outputs in accordance with the setting of bits AE3 to AE0 in PFCR, setting a PAODR bit makes the corresponding port A pin an NMOS open-drain output, while clearing the bit to 0 makes the pin a CMOS output. PAODR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 261 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.8.3 Pin Functions Port A pins also function as address bus outputs and LCD driver output pins (SEG21 to SEG24 and COM1 to COM4). The pin functions differ between modes 4 to 6, and mode 7. Port A pin functions are shown in tables 9.13 and 9.14. Table 9.13 PA7 to PA4 Pin Functions Pin H8S/2646 H8S/2646R H8S/2645 Selection Method and Pin Functions PA7/A23/ Switches as follows according to the combinations of bits SGS3 to SGS0 of LCD SEG24 to driver LPCR, bits AE3 to AE0 of PFCR, and bits PA7DDR to PA4DDR of PADDR. PA4/A20/ Setting of Port SEG output SEG21 SGS3 to SGS0 H8S/2646, H8S/2648, H8S/2646R, H8S/2648R, H8S/2645 H8S/2647 H8S/2648 H8S/2648R H8S/2647 PA7/A23/ SEG40 to PA4/A20/ SEG37 Operating mode Setting of AE3 to AE0 PAnDDR Pin function Modes 4 to 6 Mode 7 -- -- Address Address output output disabled enabled -- -- -- -- A23 to A20 output 0 1 0 1 -- PA7 to PA7 to PA7 to PA7 to SEG24 to PA4 PA4 PA4 PA4 SEG21 input output input output output -- SEG40 to SEG37 output n = 7 to 4 Page 262 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Table 9.14 PA3 to PA0 Pin Functions Pin Selection Method and Pin Functions PA3/A19/COM4 to Switches as follows according to the combinations of bits SGS3 to SGS0 of LCD driver LPCR, bits AE3 to AE0 of PFCR, and bits PA3DDR to PA0DDR of PA0/A16/COM1 PADDR. Setting of 0000 Other than SGS3 to SGS0 0000 Operating Modes 4 to 6 Mode 7 -- mode Setting of AE3 Address Address output -- -- output to AE0 disabled enabled PAnDDR -- 0 1 0 1 -- Pin function A19 to PA3 to PA3 to PA3 to PA3 to COM1 to A16 PA0 PA0 COM4 PA0 input PA0 input output output output output n = 3 to 0 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 263 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.8.4 MOS Input Pull-Up Function Port A has a built-in MOS input pull-up function that can be controlled by software. MOS input pull-up can be specified as on or off on an individual bit basis. In modes 4 to 6, if a pin is in the input state in accordance with the settings in PFCR, in LPCR, and in DDR, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for that pin. In mode 7, if a pin is in the input state in accordance with the settings in the LPCR and in DDR, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a reset, and in hardware standby mode. The prior state is retained in software standby mode. Table 9.15 summarizes the MOS input pull-up states. Table 9.15 MOS Input Pull-Up States (Port A) Pin States Reset Hardware Standby Mode Software Standby Mode In Other Operations Address output or SCI output OFF OFF OFF OFF ON/OFF ON/OFF Other than above Legend: OFF: MOS input pull-up is always off. ON/OFF: On when PADDR = 0 and PAPCR = 1; otherwise off. Page 264 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.9 Port B 9.9.1 Overview Section 9 I/O Ports Port B is an 8-bit I/O port. Port B also functions as LCD driver output pins (H8S/2646, H8S/2646R, H8S/2645: SEG16 to SEG9, H8S/2648, H8S/2648R, H8S/2647: SEG32 to SEG9) and as address bus outputs. The pin functions are determined by the operating mode. Port B has a built-in MOS input pull-up function that can be controlled by software. Figure 9.8 shows the port B pin configuration. Port B pins Pin functions in modes 4 to 6 *2 PB7 (I/O) / A15 (output) / SEG16*1 (output) / SEG32*2 (output) PB6 / A14 / SEG15*1 / SEG31*2 PB6 (I/O) / A14 (output) / SEG15*1 (output) / SEG31*2 (output) PB5 / A13 / SEG14*1 / SEG30*2 PB5 (I/O) / A13 (output) / SEG14*1 (output) / SEG30*2 (output) PB7 / A15 / SEG16 Port B *1 PB4 / A12 / SEG13 *1 PB3 / A11 / SEG12 *1 PB2 / A10 / SEG11 *1 PB1 / A9 / SEG10 *1 PB0 / A8 / SEG9 *1 / SEG32 *2 PB4 (I/O) / A12 (output) / SEG13*1 (output) / SEG29*2 (output) *2 PB3 (I/O) / A11 (output) / SEG12*1 (output) / SEG28*2 (output) *2 PB2 (I/O) / A10 (output) / SEG11*1 (output) / SEG27*2 (output) *2 PB1 (I/O) / A9 (output) / SEG10*1 (output) / SEG26*2 (output) PB0 (I/O) / A8 (output) / SEG9*1 (output) / SEG25*2 (output) / SEG29 / SEG28 / SEG27 / SEG26 *2 / SEG25 Mode 7 pins PB7 (I/O) / SEG16*1 (output) / SEG32*2 (output) PB6 (I/O) / SEG15*1 (output) / SEG31*2 (output) PB5 (I/O) / SEG14*1 (output) / SEG30*2 (output) PB4 (I/O) / SEG13*1 (output) / SEG29*2 (output) PB3 (I/O) / SEG12*1 (output) / SEG28*2 (output) PB2 (I/O) / SEG11*1 (output) / SEG27*2 (output) PB1 (I/O) / SEG10*1 (output) / SEG26*2 (output) PB0 (I/O) / SEG9*1 (output) / SEG25*2 (output) Notes: 1. In the H8S/2646, H8S/2646R, and H8S/2645. 2. In the H8S/2648, H8S/2648R, and H8S/2647. Figure 9.8 Port B Pin Functions REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 265 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.9.2 Register Configuration Table 9.16 shows the port B register configuration. Table 9.16 Port B Registers Name Abbreviation R/W Initial Value Address* Port B data direction register PBDDR W H'00 H'FE3A Port B data register PBDR R/W H'00 H'FF0A Port B register PORTB R Undefined H'FFBA Port B MOS pull-up control register PBPCR R/W H'00 H'FE41 Port B open-drain control register PBODR R/W H'00 H'FE48 Note: * Lower 16 bits of the address. Port B Data Direction Register (PBDDR) Bit : 7 6 5 4 3 2 1 0 PB7DDR PB6DDR PB5DDR PB4DDR PB3DDR PB2DDR PB1DDR PB0DDR Initial value : 0 0 0 0 0 0 0 0 R/W W W W W W W W W : PBDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port B. PBDDR cannot be read; if it is, an undefined value will be read. PBDDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. The OPE bit in SBYCR is used to select whether the address output pins retain their output state or become high-impedance when a transition is made to software standby mode. Port B Data Register (PBDR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PB7DR PB6DR PB5DR PB4DR PB3DR PB2DR PB1DR PB0DR 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PBDR is an 8-bit readable/writable register that stores output data for the port B pins (PB7 to PB0). PBDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. Page 266 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port B Register (PORTB) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PB7 --* PB6 --* PB5 --* PB4 --* PB3 --* PB2 --* PB1 --* PB0 --* R R R R R R R R Note: * Determined by state of pins PB7 to PB0. PORTB is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port B pins (PB7 to PB0) must always be performed on PBDR. If a port B read is performed while PBDDR bits are set to 1, the PBDR values are read. If a port B read is performed while PBDDR bits are cleared to 0, the pin states are read. Reading a pin being used as an LCD driver returns an undefined value. After a reset and in hardware standby mode, PORTB contents are determined by the pin states, as PBDDR and PBDR are initialized. PORTB retains its prior state in software standby mode. Port B MOS Pull-Up Control Register (PBPCR) Bit : 7 6 5 4 3 2 1 0 PB7PCR PB6PCR PB5PCR PB4PCR PB3PCR PB2PCR PB1PCR PB0PCR Initial value : R/W : 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PBPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port B on an individual bit basis. In modes 4 to 6, if a pin is in the input state in accordance with the settings in the LCD driver's LPCR and in DDR, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for that pin. In mode 7, if a pin is in the input state in accordance with the settings in the DDR, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for that pin. PBPCR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 267 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port B Open Drain Control Register (PBODR) Bit : 7 6 5 4 3 2 1 0 PB7ODR PB6ODR PB5ODR PB4ODR PB3ODR PB2ODR PB1ODR PB0ODR Initial value : R/W : 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PBODR is an 8-bit readable/writable register that controls the PMOS on/off state for each port B pin (PB7 to PB0). When pins are not address outputs in accordance with the setting of bits AE3 to AE0 in PFCR, setting a PBODR bit makes the corresponding port B pin an NMOS open-drain output, while clearing the bit to 0 makes the pin a CMOS output. Do not set PBODR to 1 if the pins are being used for LCD driver output. PBODR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. 9.9.3 Pin Functions Port B pins also function as LCD driver output pins (H8S/2646, H8S/2646R, H8S/2645: SEG16 to SEG9, H8S/2648, H8S/2648R, H8S/2647: SEG32 to SEG25) and address bus outputs. The pin functions differ between modes 4 to 6 and mode 7. Port B pin functions are shown in table 9.17. Table 9.17 Port B Pin Functions Setting of SGS3 to SGS0 Operating mode Setting of AE3 to AE0 PBnDDR Pin function Page 268 of 1126 Port Modes 4 to 6 Address Address output output disabled enabled -- 0 1 A15 to A8 PB7 to PB7 to PB0 output PB0 input output Mode 7 -- 0 PB7 to PB0 input 1 PB7 to PB0 output SEG output H8S/2646, H8S/2648, H8S/2646R, H8S/2648R, H8S/2645 H8S/2647 -- -- -- -- -- SEG16 to SEG9 output -- SEG32 to SEG25 output REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.9.4 Section 9 I/O Ports MOS Input Pull-Up Function Port B has a built-in MOS input pull-up function that can be controlled by software. MOS input pull-up can be specified as on or off on an individual bit basis. In modes 4 to 6, if a pin is in the input state in accordance with the settings of PFCR, the LCD driver LPCR, and DDR, setting PBPCR to 1 turns on MOS input pull-up. In mode 7, if a pin is in the input state in accordance with the settings of the LCD driver LPCR and DDR, setting PBPCR to 1 turns on MOS input pull-up. The MOS input pull-up function is in the off state after a reset, and in hardware standby mode. The prior state is retained by a manual reset or in software standby mode. Table 9.18 summarizes the MOS input pull-up states. Table 9.18 MOS Input Pull-Up States (Port B) Pin States Reset Hardware Standby Mode Software Standby Mode In Other Operations Address output or LCD output OFF OFF OFF OFF ON/OFF ON/OFF Other than above Legend: OFF: MOS input pull-up is always off. ON/OFF: On when PBDDR = 0 and PBPCR = 1; otherwise off. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 269 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.10 Port C 9.10.1 Overview Port C is an 8-bit I/O port. Port C also functions as LCD driver output pins (H8S/2646, H8S/2646R, H8S/2645: SEG8 to SEG1, H8S/2648, H8S/2648R, H8S/2647: SEG24 to SEG17) and as address bus outputs. The pin functions are determined by the operating mode. Port C has a built-in MOS input pull-up function that can be controlled by software. Figure 9.9 shows the port C pin configuration. Pin functions in modes 4 and 5 Port C pins A7 (output) PC7 / A7 / SEG8*1 / SEG24*2 Port C / SEG23 *2 A6 (output) / SEG22 *2 A5 (output) / SEG21 *2 A4 (output) / SEG20 *2 A3 (output) PC2 / A2 / SEG3*1 / SEG19*2 A2 (output) PC1 / A1 / SEG2*1 / SEG18*2 A1 (output) PC0 / A0 / SEG1*1 / SEG17*2 A0 (output) PC6 / A6 / SEG7 *1 PC5 / A5 / SEG6 *1 PC4 / A4 / SEG5 *1 PC3 / A3 / SEG4 *1 Pin functions in mode 6 Pin functions in mode 7 PC7 (I/O) / A7 (output) / SEG8*1 (output) / SEG24*2 (output) PC6 (I/O) / A6 (output) / SEG7 *1 PC5 (I/O) / A5 (output) / SEG6 *1 PC4 (I/O) / A4 (output) / SEG5 *1 PC3 (I/O) / A3 (output) / SEG4 *1 (output) PC6 (I/O) / SEG7*1 (output) / SEG23*2 (output) *2 (output) PC5 (I/O) / SEG6*1 (output) / SEG22*2 (output) *2 (output) PC4 (I/O) / SEG5*1 (output) / SEG21*2 (output) *2 (output) PC3 (I/O) / SEG4*1 (output) / SEG20*2 (output) *2 (output) PC2 (I/O) / SEG3*1 (output) / SEG19*2 (output) PC1 (I/O) / A1 (output) / SEG2*1 (output) / SEG18*2 (output) PC1 (I/O) / SEG2*1 (output) / SEG18*2 (output) PC0 (I/O) / A0 (output) / SEG1*1 (output) / SEG17*2 (output) PC0 (I/O) / SEG1*1 (output) / SEG17*2 (output) (output) / SEG23 (output) / SEG22 (output) / SEG21 (output) / SEG20 *1 PC2 (I/O) / A2 (output) / SEG3 (output) / SEG19 Notes: 1. 2. PC7 (I/O) / SEG8*1 (output) / SEG24*2 (output) *2 In the H8S/2646, H8S/2646R, and H8S/2645. In the H8S/2648, H8S/2648R, and H8S/2647. Figure 9.9 Port C Pin Functions Page 270 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.10.2 Section 9 I/O Ports Register Configuration Table 9.19 shows the port C register configuration. Table 9.19 Port C Registers Name Abbreviation R/W Initial Value Address* Port C data direction register PCDDR W H'00 H'FE3B Port C data register PCDR R/W H'00 H'FF0B Port C register PORTC R Undefined H'FFBB Port C MOS pull-up control register PCPCR R/W H'00 H'FE42 Port C open-drain control register PCODR R/W H'00 H'FE49 Note: * Lower 16 bits of the address. Port C Data Direction Register (PCDDR) Bit : 7 6 5 4 3 2 1 0 PC7DDR PC6DDR PC5DDR PC4DDR PC3DDR PC2DDR PC1DDR PC0DDR Initial value : 0 0 0 0 0 0 0 0 R/W W W W W W W W W : PCDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port C. PCDDR cannot be read; if it is, an undefined value will be read. PCDDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. The OPE bit in SBYCR is used to select whether the address output pins retain their output state or become high-impedance when the mode is changed to software standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 271 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port C Data Register (PCDR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PC7DR PC6DR PC5DR PC4DR PC3DR PC2DR PC1DR PC0DR 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PCDR is an 8-bit readable/writable register that stores output data for the port C pins (PC7 to PC0). PCDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. Port C Register (PORTC) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PC7 --* PC6 --* PC5 --* PC4 --* PC3 --* PC2 --* PC1 --* PC0 --* R R R R R R R R Note: * Determined by state of pins PC7 to PC0. PORTC is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port C pins (PC7 to PC0) must always be performed on PCDR. If a port C read is performed while PCDDR bits are set to 1, the PCDR values are read. If a port C read is performed while PCDDR bits are cleared to 0, the pin states are read. Reading a pin being used as an LCD driver returns an undefined value. After a reset and in hardware standby mode, PORTC contents are determined by the pin states, as PCDDR and PCDR are initialized. PORTC retains its prior state in software standby mode. Page 272 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port C MOS Pull-Up Control Register (PCPCR) Bit : 7 6 5 4 3 2 1 0 PC7PCR PC6PCR PC5PCR PC4PCR PC3PCR PC2PCR PC1PCR PC0PCR Initial value : R/W : 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PCPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port C on an individual bit basis. In modes 6 and 7, if PCPCR is set to 1 when the port is in the input state in accordance with the settings of the LCD driver LPCR and PCDDR, the MOS input pull-up is set to ON. PCPCR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port C Open Drain Control Register (PCODR) Bit 7 6 5 4 3 2 1 0 PC7ODR PC6ODR PC5ODR PC4ODR PC3ODR PC2ODR PC1ODR PC0ODR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W PCODR is an 8-bit readable/writable register and controls PMOS On/Off of each pin (PC7 to PC0) of port C. If PCODR is set to 1 by setting AE3 to AE0 in PFCR in mode other than address output mode, port C pins function as NMOS open drain outputs and when the setting is cleared to 0, the pins function as CMOS outputs. Do not set PCODR to 1 if the pins are being used for LCD driver output. PCODR is initialized to H'00 in reset mode or hardware standby mode. PCODR retains the last state in software standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 273 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.10.3 Pin Functions Port C can function as LCD segment output pins (H8S/2646, H8S/2646R, H8S/2645: SEG8 to SEG1, H8S/2648, H8S/2648R, H8S/2647: SEG24 to SEG17) and as address bus outputs. The pin functions differ in modes 4 and 5, mode 6, and mode 7. The port C pin functions are listed in table 9.20. Table 9.20 Port C Pin Functions Setting of SGS3 to SGS0 Operating mode PCnDDR Pin function Port Modes 4 and 5 -- A7 to A0 output Mode 6 -- -- SEG8 to SEG24 to SEG1 SEG17 output output Note: Modes 4 and 5 are extended modes in which the internal ROM is disabled. Address output is disabled when port C is set to segment output, so it is not possible to interface with external ROM. Therefore port C must not be set to segment output in mode 4 or mode 5. Page 274 of 1126 0 PC7 to PC0 input 1 A7 to A0 output Mode 7 SEG output H8S/2646, H8S/2648, H8S/2646R, H8S/2648R, H8S/2645 H8S/2647 -- -- 0 1 PC7 to PC7 to PC0 input PC0 output REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.10.4 Section 9 I/O Ports MOS Input Pull-Up Function Port C has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in modes 6 and 7, and can be specified as on or off on an individual bit basis. In modes 6 and 7, when PCPCR is set to 1 in the input state by setting of the LCD driver LPCR and PCDDR, the MOS input pull-up is set to ON. The MOS input pull-up function is in the off state after a reset, and in hardware standby mode. The prior state is retained by a manual reset or in software standby mode. Table 9.21 summarizes the MOS input pull-up states. Table 9.21 MOS Input Pull-Up States (Port C) Pin States Reset Hardware Standby Mode Address output OFF OFF Other than above Software Standby Mode In Other Operations OFF OFF ON/OFF ON/OFF Legend: OFF: MOS input pull-up is always off. ON/OFF: On when PCDDR = 0 and PCPCR = 1; otherwise off. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 275 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.11 Port D 9.11.1 Overview Port D is an 8-bit I/O port. Port D has a data bus I/O function, and the pin functions change according to the operating mode. In the H8S/2648, H8S/2648R, H8S/2647, port D pins also function as LCD driver output pins (SEG16 to SEG9). Port D has a built-in MOS input pull-up function that can be controlled by software. Figure 9.10 shows the port D pin configuration. Port D Port D pins Pin functions in modes 4 to 6 PD7 / D15 / SEG16* D15 (I/O) / SEG16* (output) PD6 / D14 / SEG15* D14 (I/O) / SEG15* (output) PD5 / D13 / SEG14* D13 (I/O) / SEG14* (output) PD4 / D12 / SEG13* D12 (I/O) / SEG13* (output) PD3 / D11 / SEG12* D11 (I/O) / SEG12* (output) PD2 / D10 / SEG11* D10 (I/O) / SEG11* (output) PD1 / D9 / SEG10* D9 (I/O) / SEG10* (output) PD0 / D8 / SEG9* D8 (I/O) / SEG9* (output) Pin functions in mode 7 PD7 (I/O) / SEG16* (output) PD6 (I/O) / SEG15* (output) PD5 (I/O) / SEG14* (output) PD4 (I/O) / SEG13* (output) PD3 (I/O) / SEG12* (output) PD2 (I/O) / SEG11* (output) PD1 (I/O) / SEG10* (output) PD0 (I/O) / SEG9* (output) Note: * In the H8S/2648, H8S/2648R, and H8S/2647. Figure 9.10 Port D Pin Functions Page 276 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.11.2 Section 9 I/O Ports Register Configuration Table 9.22 shows the port D register configuration. Table 9.22 Port D Registers Name Abbreviation R/W Initial Value Address* Port D data direction register PDDDR W H'00 H'FE3C Port D data register PDDR R/W H'00 H'FF0C Port D register PORTD R Undefined H'FFBC Port D MOS pull-up control register PDPCR R/W H'00 H'FE43 Note: * Lower 16 bits of the address. Port D Data Direction Register (PDDDR) Bit : 7 6 5 4 3 2 1 0 PD7DDR PD6DDR PD5DDR PD4DDR PD3DDR PD2DDR PD1DDR PD0DDR Initial value : 0 0 0 0 0 0 0 0 R/W W W W W W W W W : PDDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port D. PDDDR cannot be read; if it is, an undefined value will be read. PDDDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. Port D Data Register (PDDR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PD7DR PD6DR PD5DR PD4DR PD3DR PD2DR PD1DR PD0DR 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PDDR is an 8-bit readable/writable register that stores output data for the port D pins (PD7 to PD0). PDDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 277 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port D Register (PORTD) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PD7 --* PD6 --* PD5 --* PD4 --* PD3 --* PD2 --* PD1 --* PD0 --* R R R R R R R R Note: * Determined by state of pins PD7 to PD0. PORTD is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port D pins (PD7 to PD0) must always be performed on PDDR. If a port D read is performed while PDDDR bits are set to 1, the PDDR values are read. If a port D read is performed while PDDDR bits are cleared to 0, the pin states are read. After a reset and in hardware standby mode, PORTD contents are determined by the pin states, as PDDDR and PDDR are initialized. PORTD retains its prior state in software standby mode. Port D MOS Pull-Up Control Register (PDPCR) Bit : 7 6 5 4 3 2 1 0 PD7PCR PD6PCR PD5PCR PD4PCR PD3PCR PD2PCR PD1PCR PD0PCR Initial value : R/W : 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PDPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port D on an individual bit basis. In mode 7, if a pin is in the input state in accordance with the settings in PDDDR and LPCR, setting the corresponding PDPCR bit to 1 turns on the MOS input pull-up for that pin. PDPCR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. Page 278 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.11.3 Section 9 I/O Ports Pin Functions In modes 4 to 6, each pin on port D automatically becomes one of the data bus I/O pins (D15 to D8). In mode 7, each pin on port D functions as an I/O port and can be specified to function as an input or output bit by bit. The function of pins on port D are as listed in tables 9.23 (1) and 9.23 (2). Table 9.23 (1) Port D Pin Functions (H8S/2646, H8S/2646R, H8S/2645) Pins Method of Selection and Pin Function PD7/D15, PD6/D14, PD5/D13, PD4/D12, PD3/D11, PD2/D10, PD1/D9, PD0/D8 Pin functions are changed by a combination of the operating mode and the PDDDR. Operating mode Modes 4 to 6 PDnDDR Pin function Mode 7 -- 0 1 Data bus I/O (D15 to D8) PDn input PDn output n = 7 to 0 Table 9.23 (2) Port D Pin Functions (H8S/2648, H8S/2648R, H8S/2647) Pins PD7/D15/SEG9 to PD0/D8/SEG16 Method of Selection and Pin Function Setting of SGS3 to SGS0 Operating mode PDDDR Pin function Port Modes 4 to 6 -- SEG output Mode 7 0 D15 to D8 I/O PD7 to PD0 input -- 1 -- PD7 to PD0 output SEG9 to SEG16 Note: Modes 4 and 5 are expanded modes with on-chip ROM disabled. If segment output is selected, data input/output and interfacing to external ROM are no longer possible. Therefore segment output settings should not be made in these modes. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 279 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.11.4 MOS Input Pull-Up Function Port D has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in mode 7, and can be specified as on or off on an individual bit basis. In mode 7, if a pin is in the input state in accordance with the settings in PDDDR and LPCR, setting the corresponding PDPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a reset, and in hardware standby mode. The prior state is retained in software standby mode. Table 9.24 summarizes the MOS input pull-up states. Table 9.24 MOS Input Pull-Up States (Port D) Modes Reset Hardware Standby Mode Software Standby Mode In Other Operations 4 to 6 OFF OFF OFF OFF ON/OFF ON/OFF 7 Legend: OFF: MOS input pull-up is always off. ON/OFF: On when PDDDR = 0, PDPCR = 1, and the pin is not used as a segment driver; otherwise off. Page 280 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.12 Port E 9.12.1 Overview Section 9 I/O Ports Port E is an 8-bit I/O port. Port E has a data bus I/O function, and the pin functions change according to the operating mode and whether 8-bit or 16-bit bus mode is selected. In the H8S/2648, H8S/2648R, and H8S/2647, port E pins also function as LCD driver output pins (SEG8 to SEG1). Port E has a built-in MOS input pull-up function that can be controlled by software. Figure 9.11 shows the port E pin configuration. Port E Port E pins Pin functions in modes 4 to 6 PE7 / D7 / SEG8* PE7 (I/O) / D7 (I/O) / SEG8* (output) PE6 / D6 / SEG7* PE6 (I/O) / D6 (I/O) / SEG7* (output) PE5 / D5 / SEG6* PE5 (I/O) / D5 (I/O) / SEG6* (output) PE4 / D4 / SEG5* PE4 (I/O) / D4 (I/O) / SEG5* (output) PE3 / D3 / SEG4* PE3 (I/O) / D3 (I/O) / SEG4* (output) PE2 / D2 / SEG3* PE2 (I/O) / D2 (I/O) / SEG3* (output) PE1 / D1 / SEG2* PE1 (I/O) / D1 (I/O) / SEG2* (output) PE0 / D0 / SEG1* PE0 (I/O) / D0 (I/O) / SEG1* (output) Pin functions in mode 7 PE7 (I/O) / SEG8* (output) PE6 (I/O) / SEG7* (output) PE5 (I/O) / SEG6* (output) PE4 (I/O) / SEG5* (output) PE3 (I/O) / SEG4* (output) PE2 (I/O) / SEG3* (output) PE1 (I/O) / SEG2* (output) PE0 (I/O) / SEG1* (output) Note: * In the H8S/2648, H8S/2648R, and H8S/2647. Figure 9.11 Port E Pin Functions REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 281 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.12.2 Register Configuration Table 9.25 shows the port E register configuration. Table 9.25 Port E Registers Name Abbreviation R/W Initial Value Address* Port E data direction register PEDDR W H'00 H'FE3D Port E data register PEDR R/W H'00 H'FF0D Port E register PORTE R Undefined H'FFBD Port E MOS pull-up control register PEPCR R/W H'00 H'FE44 Note: * Lower 16 bits of the address. Port E Data Direction Register (PEDDR) Bit : 7 6 5 4 3 2 1 0 PE7DDR PE6DDR PE5DDR PE4DDR PE3DDR PE2DDR PE1DDR PE0DDR Initial value : 0 0 0 0 0 0 0 0 R/W W W W W W W W W : PEDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port E. PEDDR cannot be read; if it is, an undefined value will be read. PEDDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state by a manual reset or in software standby mode. Port E Data Register (PEDR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PE7DR PE6DR PE5DR PE4DR PE3DR PE2DR PE1DR PE0DR 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PEDR is an 8-bit readable/writable register that stores output data for the port E pins (PE7 to PE0). PEDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. Page 282 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port E Register (PORTE) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PE7 --* PE6 --* PE5 --* PE4 --* PE3 --* PE2 --* PE1 --* PE0 --* R R R R R R R R Note: * Determined by state of pins PE7 to PE0. PORTE is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port E pins (PE7 to PE0) must always be performed on PEDR. If a port E read is performed while PEDDR bits are set to 1, the PEDR values are read. If a port E read is performed while PEDDR bits are cleared to 0, the pin states are read. Pins used as LCD driver pins will return an undefined value if read. After a reset and in hardware standby mode, PORTE contents are determined by the pin states, as PEDDR and PEDR are initialized. PORTE retains its prior state in software standby mode. Port E MOS Pull-Up Control Register (PEPCR) Bit : 7 6 5 4 3 2 1 0 PE7PCR PE6PCR PE5PCR PE4PCR PE3PCR PE2PCR PE1PCR PE0PCR Initial value : R/W : 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PEPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port E on an individual bit basis. In modes 4 to 6 with 8-bit-bus mode selected, or in mode 7, if a pin is in the input state in accordance with the settings in LPCR and PEDDR, setting the corresponding PEPCR bit to 1 turns on the MOS input pull-up for that pin. PEPCR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 283 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.12.3 Pin Functions The port E pin functions are listed in tables 9.26 (1) and 9.26 (2). Table 9.26 (1) Port E Pin Functions (H8S/2646, H8S/2646R, H8S/2645) Operating mode Bus width setting PEDDR Pin function 16-bit mode -- D7 to D0 I/O Modes 4 to 6 8-bit mode 0 1 PE7 to PE0 PE7 to PE0 input output Mode 7 -- 0 PE7 to PE0 input 1 PE7 to PE0 output Table 9.26 (2) Port E Pin Functions (H8S/2648, H8S/2648R, H8S/2647) Setting of SEG3 to SEG0 Operating mode Bus width setting PEDDR Pin function Page 284 of 1126 Port Modes 4 to 6 SEG output -- Mode 7 16-bit mode 8-bit mode -- -- 0 1 0 1 D7 to D0 I/O PE7 to PE0 PE7 to PE0 PE7 to PE0 PE7 to PE0 input output input output -- -- SEG1 to SEG8 output REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.12.4 Section 9 I/O Ports MOS Input Pull-Up Function Port E has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in modes 4 to 6 when 8-bit bus mode is selected, or in mode 7, and can be specified as on or off on an individual bit basis. In modes 4 to 6 with 8-bit-bus mode selected, or in mode 7, if a pin is in the input state in accordance with the settings in LPCR and PEDDR, setting the corresponding PEPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a reset, and in hardware standby mode. The prior state is retained in software standby mode. Table 9.27 summarizes the MOS input pull-up states. Table 9.27 MOS Input Pull-Up States (Port E) Modes 7 4 to 6 Reset Hardware Standby Mode Software Standby Mode In Other Operations OFF OFF ON/OFF ON/OFF OFF OFF 8-bit bus 16-bit bus Legend: OFF: MOS input pull-up is always off. ON/OFF: On when PEDDR = 0, PEPCR = 1, and the pin is not used as a segment driver; otherwise off. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 285 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.13 Port F 9.13.1 Overview Port F is a 7-bit I/O port. Port F also functions as LCD driver output pins (SEG20 to SEG17), external interrupt input pins (IRQ2, IRQ3), the A/D trigger input pin (ADTRG), bus control signal I/O pins (AS, RD, HWR, LWR, WAIT), and as the system clock output pin (). Figure 9.12 shows the port F pin configuration. Port F Port F pins Pin functions in modes 4 to 6 PF7 / PF7 (input) / (output) PF6 / AS / SEG20 / SEG36* PF6 (I/O) / AS (output) / SEG20 (output) / SEG36* (output) PF5 / RD / SEG19 / SEG35* PF5 (I/O) / RD (output) / SEG19 (output) / SEG35* (output) PF4 / HWR / SEG18 / SEG34* PF4 (I/O) / HWR (output) / SEG18 (output) / SEG34* (output) PF3 / LWR / ADTRG / IRQ3 PF3 (I/O) / LWR (output) / ADTRG (input) / IRQ3 (input) PF2 / WAIT / SEG17 / SEG33* PF2 (I/O) / WAIT (input) / SEG17 (output) / SEG33* (output) PF0 / IRQ2 PF0 (I/O) / IRQ2 (input) Pin functions in mode 7 PF7 (I/O) / (output) PF6 (I/O) / SEG20 (output) / SEG36* (output) PF5 (I/O) / SEG19 (output)) / SEG35* (output) PF4 (I/O) / SEG18 (output)) / SEG34* (output) PF3 (I/O) / ADTRG (input) / IRQ3 (input) PF2 (I/O) / SEG17 (output)) / SEG33* (output) PF0 (I/O) / IRQ2 (input) Note: * In the H8S/2648, H8S/2648R, and H8S/2647. Figure 9.12 Port F Pin Functions Page 286 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.13.2 Section 9 I/O Ports Register Configuration Table 9.28 shows the port F register configuration. Table 9.28 Port F Registers Name Abbreviation R/W Initial Value 1 Address* Port F data direction register PFDDR W 2 H'80/H'00* H'FE3E Port F data register PFDR R/W H'00 H'FF0E Port F register PORTF R Undefined H'FFBE Notes: 1. Lower 16 bits of the address. 2. Initial value depends on the mode. Port F Data Direction Register (PFDDR) Bit : 7 6 5 4 3 2 PF7DDR PF6DDR PF5DDR PF4DDR PF3DDR PF2DDR 1 0 -- PF0DDR Modes 4 to 6 Initial value : 1 0 0 0 0 0 undefined 0 R/W : W W W W W W -- W Initial value : 0 0 0 0 0 0 undefined 0 R/W W W W W W W -- W Mode 7 : PFDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port F. PFDDR cannot be read; if it is, an undefined value will be read. PFDDR is initialized by a reset, and in hardware standby mode, to H'80 in modes 4 to 6, and to H'00 in mode 7. It retains its prior state in software standby mode. The OPE bit in SBYCR is used to select whether the bus control output pins retain their output state or become high-impedance when a transition is made to software standby mode. PFDDR bit 1 is reserved. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 287 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port F Data Register (PFDR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 -- PF6DR PF5DR PF4DR PF3DR PF2DR -- PF0DR 0 0 0 0 0 0 undefined 0 R/W R/W R/W R/W R/W R/W -- R/W PFDR is an 8-bit readable/writable register that stores output data for the port F pins (PF6 to PF2, PF0). PFDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in software standby mode. Bits 7 and 1 in PFDR are reserved, and only 0 may be written to it. Port F Register (PORTF) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PF7 --* PF6 --* PF5 --* PF4 --* PF3 --* PF2 --* -- undefined PF0 --* R R R R R R -- R Note: * Determined by state of pins PF7 to PF2, PF0. PORTF is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port F pins (PF7 to PF2, PF0) must always be performed on PFDR. If a port F read is performed while PFDDR bits are set to 1, the PFDR values are read. If a port F read is performed while PFDDR bits are cleared to 0, the pin states are read. Pins used as LCD driver pins will return an undefined value if read. After a reset and in hardware standby mode, PORTF contents are determined by the pin states, as PFDDR and PFDR are initialized. PORTF retains its prior state in software standby mode. PORTF bit 1 is reserved. Page 288 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.13.3 Section 9 I/O Ports Pin Functions Port F pins also function as LCD driver output pins (SEG20 to SEG17), external interrupt input pins (IRQ2, IRQ3), the A/D trigger input pin (ADTRG), bus control signal I/O pins (AS, RD, HWR, LWR, WAIT), and the system clock output pin (). Their functions differ in modes 4 to 6 and in mode 7. Table 9.29 lists the pin functions for port F. Table 9.29 Port F Pin Functions Pin Selection Method and Pin Functions PF7/ Switches as follows according to bit PF7DDR. PF7DDR Pin function PF6/AS/SEG20 (H8S/2646, H8S/2646R, H8S/2645) PF6/AS/SEG36 (H8S/2648, H8S/2648R, H8S/2647) 1 PF7 input output Switches as follows according to the operating mode and the setting of SGS3 to SGS0 and bit PF6DDR. Operating Mode Setting of SGS3 to SGS0 Modes 4 to 6 Mode 7 SEG output Port SEG output -- -- -- Pin H8S/2646, function H8S/2646R, H8S/2645 SEG20 output AS output SEG20 output H8S/2648, H8S/2648R, H8S/2647 SEG36 output PF6DDR REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 0 Port 0 1 PF6 input PF6 output SEG36 output Page 289 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions PF5/RD/SEG19 (H8S/2646, H8S/2646R, H8S/2645) Switches as follows according to the operating mode and the setting of SGS3 to SGS0 and bit PF5DDR. PF5/RD/SEG35 (H8S/2648, H8S/2648R, H8S/2647) Operating Mode Setting of SGS3 to SGS0 Modes 4 to 6 Mode 7 SEG output Port SEG output -- -- -- Pin H8S/2646, function H8S/2646R, H8S/2645 SEG19 output RD output SEG19 output H8S/2648, H8S/2648R, H8S/2647 SEG35 output PF5DDR Port 0 1 PF5 input PF5 output SEG35 output PF4/HWR/SEG18 Switches as follows according to the operating mode and the setting of SGS3 (H8S/2646, to SGS0 and bit PF4DDR. H8S/2646R, Operating Mode Modes 4 to 6 Mode 7 H8S/2645) Setting of SGS3 to SEG Port SEG Port PF4/HWR/SEG34 SGS0 output output (H8S/2648, PF4DDR -- -- -- 0 1 H8S/2648R, Pin H8S/2646, SEG18 HWR SEG18 PF4 PF4 H8S/2647) function H8S/2646R, output output output input output H8S/2645 H8S/2648, H8S/2648R, H8S/2647 Page 290 of 1126 SEG34 output SEG34 output REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Pin Selection Method and Pin Functions PF3/LWR/ ADTRG/IRQ3 Switches as follows according to the operating mode and the setting of bits TRGS1, TRGS0, and PF3DDR. Operating Mode Modes 4 to 6 Bus mode 16-bit bus mode PF3DDR -- Pin function Mode 7 8-bit bus mode 0 -- 1 0 1 LWR output PF3 input PF3 output PF3 input 1 ADTRG input* PF3 output 2 IRQ3 input* Notes: 1. ADTRG input when TRGS0 = TRGS1 = 1. 2. When used as an external interrupt input pin, do not use it as an I/O pin for other functions. PF2/WAIT/SEG17 Switches as follows according to the operating mode, and the setting of bits (H8S/2646, SGS3 to SGS0, the WAITE bit, and bit PF2DDR. H8S/2646R, Operating Mode Modes 4 to 6 Mode 7 H8S/2645) PF2/WAIT/SEG33 (H8S/2648, H8S/2648R, H8S/2647) PF0/IRQ2 Setting of SGS3 to SGS0 SEG output Port SEG output 0 Port WAITE -- 1 1 PF2DDR -- 0 1 -- -- 0 -- 1 Pin H8S/2646, function H8S/2646R, H8S/2645 SEG17 output PF2 input PF2 output WAIT input SEG17 output PF2 input PF2 output H8S/2648, H8S/2648R, H8S/2647 SEG33 output SEG33 output Switches as follows according to the PF0DDR bit. PF0DDR Pin function 0 1 PF0 input PF0 output IRQ2 input REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 291 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports 9.14 Port H 9.14.1 Overview Port H is an 8-bit I/O port. Port H pins also function as motor control PWM timer output pins (PWM1A to PWM1H). Figure 9.13 shows the port H pin configuration. Port H pin PH7 (I/O) / PWM1H (output) PH6 (I/O) / PWM1G (output) PH5 (I/O) / PWM1F (output) Port H PH4 (I/O) / PWM1E (output) PH3 (I/O) / PWM1D (output) PH2 (I/O) / PWM1C (output) PH1 (I/O) / PWM1B (output) PH0 (I/O) / PWM1A (output) Figure 9.13 Port H Pin Functions 9.14.2 Register Configuration Table 9.30 shows the port H register configuration. Table 9.30 Port H Registers Name Abbreviation R/W Initial Value Address* Port H data direction register PHDDR W H'00 H'FC20 Port H data register PHDR R/W H'00 H'FC24 Port H register PORTH R Undefined H'FC28 Note: * Lower 16 bits of the address. Page 292 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port H Data Direction Register (PHDDR) Bit : 7 6 5 4 3 2 1 0 PH7DDR PH6DDR PH5DDR PH4DDR PH3DDR PH2DDR PH1DDR PH0DDR Initial value : 0 0 0 0 0 0 0 0 R/W W W W W W W W W : PHDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port H. PHDDR cannot be read. If it is, an undefined value will be read. PHDDR is initialized to H'00 by a reset and in hardware standby mode. It retains its prior state in software standby mode. Port H Data Register (PHDR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PH7DR PH6DR PH5DR PH4DR PH3DR PH2DR PH1DR PH0DR 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PHDR is an 8-bit readable/writeable register that stores output data for the port H pins (PH7 to PH0). PHDR is initialized to H'00 by a reset and in hardware standby mode. It retains its prior state in software standby mode. Port H Register (PORTH) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PH7 --* PH6 --* PH5 --* PH4 --* PH3 --* PH2 --* PH1 --* PH0 --* R R R R R R R R Note: * Determined by the state of PH7 to PH0 PORTH is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port H pins (PH7 to PH0) must always be performed on PHDR. If a port H read is performed while PHDDR bits are set to 1, the PHDR values are read. If a port H read is performed while PHDDR bits are cleared to 0, the pin states are read. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 293 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports After a reset and in hardware standby mode, PORTH contents are determined by the pin states, as PHDDR and PHDR are initialized. PORTH retains its prior state in software standby mode. 9.14.3 Pin Functions As shown in table 9.31, the port H pin functions can be switched, bit by bit, by changing the values of OE1A to OE1H of motor control PWM timer PWOCR1 and PHDDR. Table 9.31 Port H Pin Functions OE1A to OE1H 1 0 PHDDR -- 0 1 Pin function Motor control PWM timer output PH7 to PH0 input PH7 to PH0 output 9.15 Port J 9.15.1 Overview Port J is an 8-bit I/O port. Port J pins also function as motor control PWM timer output pins (PWM2A to PWM2H). Figure 9.14 shows the port J pin configuration. Port J pin PJ7 (I/O) / PWM2H (output) PJ6 (I/O) / PWM2G (output) PJ5 (I/O) / PWM2F (output) Port J PJ4 (I/O) / PWM2E (output) PJ3 (I/O) / PWM2D (output) PJ2 (I/O) / PWM2C (output) PJ1 (I/O) / PWM2B (output) PJ0 (I/O) / PWM2A (output) Figure 9.14 Port J Pin Functions Page 294 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.15.2 Section 9 I/O Ports Register Configuration Table 9.32 shows the port J register configuration. Table 9.32 Port J Registers Name Abbreviation R/W Initial Value Address* Port J data direction register PJDDR W H'00 H'FC21 Port J data register PJDR R/W H'00 H'FC25 Port J register PORTJ R Undefined H'FC29 Note: * Lower 16 bits of the address Port J Data Direction Register (PJDDR) Bit : 7 6 5 4 3 2 1 0 PJ7DDR PJ6DDR PJ5DDR PJ4DDR PJ3DDR PJ2DDR PJ1DDR PJ0DDR Initial value : 0 0 0 0 0 0 0 0 R/W W W W W W W W W : PJDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port J. PJDDR cannot be read. If it is, an undefined value will be read. PJDDR is initialized to H'00 by a reset and in hardware standby mode. It retains its prior state in software standby mode. Port J Data Register (PJDR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PJ7DR PJ6DR PJ5DR PJ4DR PJ3DR PJ2DR PJ1DR PJ0DR 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PJDR is an 8-bit readable/writeable register that stores output data for the port J pins (PJ7 to PJ0). PJDR is initialized to H'00 by a reset and in hardware standby mode. It retains its prior state in software standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 295 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port J Register (PORTJ) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PJ7 --* PJ6 --* PJ5 --* PJ4 --* PJ3 --* PJ2 --* PJ1 --* PJ0 --* R R R R R R R R Note: * Determined by the state of PJ7 to PJ0. PORTJ is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port J pins (PJ7 to PJ0) must always be performed on PJDR. If a port J read is performed while PJDDR bits are set to 1, the PJDR values are read. If a port J read is performed while PJDDR bits are cleared to 0, the pin states are read. After a reset and in hardware standby mode, PORTJ contents are determined by the pin states, as PJDDR and PJDR are initialized. PORTJ retains its prior state in software standby mode. 9.15.3 Pin Functions As shown in table 9.33, the port J pin functions can be switched, bit by bit, by changing the values of OE2A to OE2H of motor control PWM timer PWOCR2 and PJDDR. Table 9.33 Port J Pin Functions OE2A to OE2H 1 0 PJDDR -- 0 1 Pin function Motor control PWM timer output PJ7 to PJ0 input PJ7 to PJ0 output Page 296 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 9.16 Port K 9.16.1 Overview Section 9 I/O Ports Port K is a 2-bit I/O port. Figure 9.15 shows the pin functions for port K. Port K pins PK7 (I/O) PK6 (I/O) Port K Figure 9.15 Port K Pin Functions 9.16.2 Register Configuration Table 9.34 shows the port A register configuration. Table 9.34 Port K Registers Name Abbreviation R/W Initial Value Address* Port K data direction register PKDDR W H'0 H'FC22 Port K data register PKDR R/W H'0 H'FC26 Port K register PORTK R Undefined H'FC2A Note: * Lower 16 bits of the address. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 297 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports Port K Data Direction Register (PKDDR) Bit : 7 6 PK7DDR PK6DDR Initial value : 0 0 R/W W W : 5 4 3 2 1 0 -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- PKDDR is an 8-bit write-only register that specifies whether individual bits are input or output for each of the pins in port K. It is not possible to read it. An undefined value is returned if an attempt is made to read it. PKDDR is initialized to H'00 if a reset occurs and in the hardware standby mode. The previous values are retained by PKDDR in the software standby mode. Port K Data Register (PKDR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PK7DR PK6DR -- -- -- -- -- -- 0 0 R/W R/W Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- PKDR is an 8-bit readable/writable register that stores output data for the port K pins (PK7, PK6). PKDR is initialized to H'00 if a reset occurs and in the hardware standby mode. The previous values are retained in the software standby mode. Port K Register (PORTK) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 PK7 --* PK6 --* -- -- -- -- -- -- R R Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- Note: * Determined by state of pins PF7 to PF6. PORTK is an 8-bit read-only register that reflects the states of the pins. It is not possible to write to it. Always write output data from the port K pins (PK7, PK6) to PKDR. If PKDDR is set to 1, the value of PKDR is returned when port K is read. If PKDDR is cleared to 0, the pin states are returned when port K is read. Page 298 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 9 I/O Ports PKDDR and PKDR are initialized if a reset occurs and in the hardware standby mode, so the content of PORTK is determined by the pin states. The previous states are retained in the software standby mode. 9.16.3 Pin Functions The function of the port K pins changes with the operating mode, in accordance with the value of PKDDR, as shown in table 9.35. Table 9.35 Port K Pin Functions PKDDR Pin function REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 0 PK7, PK6 input 1 PK7, PK6 output Page 299 of 1126 Section 9 I/O Ports Page 300 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Section 10 16-Bit Timer Pulse Unit (TPU) 10.1 Overview The H8S/2646 Group has an on-chip 16-bit timer pulse unit (TPU) that comprises six 16-bit timer channels. 10.1.1 Features * Maximum 16-pulse input/output A total of 16 timer general registers (TGRs) are provided (four each for channels 0 and 3, and two each for channels 1, 2, 4, and 5), each of which can be set independently as an output compare/input capture register TGRC and TGRD for channels 0 and 3 can also be used as buffer registers * Selection of 8 counter input clocks for each channel * The following operations can be set for each channel: Waveform output at compare match: Selection of 0, 1, or toggle output Input capture function: Selection of rising edge, falling edge, or both edge detection Counter clear operation: Counter clearing possible by compare match or input capture Synchronous operation: Multiple timer counters (TCNT) can be written to simultaneously, Simultaneous clearing by compare match and input capture possible, Register simultaneous input/output possible by counter synchronous operation PWM mode: Any PWM output duty can be set, Maximum of 15-phase PWM output possible by combination with synchronous operation * Buffer operation settable for channels 0 and 3 Input capture register double-buffering possible Automatic rewriting of output compare register possible * Phase counting mode settable independently for each of channels 1, 2, 4, and 5 Two-phase encoder pulse up/down-count possible * Cascaded operation Channel 2 (channel 5) input clock operates as 32-bit counter by setting channel 1 (channel 4) overflow/underflow * Fast access via internal 16-bit bus Fast access is possible via a 16-bit bus interface REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 301 of 1126 Section 10 16-Bit Timer Pulse Unit (TPU) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM * 26 interrupt sources For channels 0 and 3, four compare match/input capture dual-function interrupts and one overflow interrupt can be requested independently For channels 1, 2, 4, and 5, two compare match/input capture dual-function interrupts, one overflow interrupt, and one underflow interrupt can be requested independently * Automatic transfer of register data Block transfer, 1-word data transfer, and 1-byte data transfer possible by data transfer controller (DTC) * Programmable pulse generator (PPG) output trigger can be generated Channel 0 to 3 compare match/input capture signals can be used as PPG output trigger * A/D converter conversion start trigger can be generated Channel 0 to 5 compare match A/input capture A signals can be used as A/D converter conversion start trigger * Module stop mode can be set As the initial setting, TPU operation is halted. Register access is enabled by exiting module stop mode. Table 10.1 lists the functions of the TPU. Page 302 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Table 10.1 TPU Functions Item Channel 0 Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Count clock /1 /4 /16 /64 TCLKA TCLKB TCLKC TCLKD /1 /4 /16 /64 /256 TCLKA TCLKB /1 /4 /16 /64 /1024 TCLKA TCLKB TCLKC /1 /4 /16 /64 /256 /1024 /4096 TCLKA /1 /4 /16 /64 /1024 TCLKA TCLKC /1 /4 /16 /64 /256 TCLKA TCLKC TCLKD General registers TGR0A TGR0B TGR1A TGR1B TGR2A TGR2B TGR3A TGR3B TGR4A TGR4B TGR5A TGR5B General registers/ buffer registers TGR0C TGR0D -- -- TGR3C TGR3D -- -- I/O pins TIOCA0 TIOCB0 TIOCC0 TIOCD0 TIOCA1 TIOCB1 TIOCA2 TIOCB2 TIOCA3 TIOCB3 TIOCC3 TIOCD3 TIOCA4 TIOCB4 TIOCA5 TIOCB5 Counter clear function TGR compare match or input capture TGR compare match or input capture TGR compare match or input capture TGR compare match or input capture TGR compare match or input capture TGR compare match or input capture -- -- Compare 0 output match 1 output output Toggle output Input capture function Synchronous operation PWM mode Phase counting mode Buffer operation REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 -- -- -- -- Page 303 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Item Channel 0 Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 DTC TGR activation compare match or input capture TGR compare match or input capture TGR compare match or input capture TGR compare match or input capture TGR compare match or input capture TGR compare match or input capture A/D TGR0A converter compare trigger match or input capture TGR1A compare match or input capture TGR2A compare match or input capture TGR3A compare match or input capture TGR4A compare match or input capture TGR5A compare match or input capture PPG trigger TGR0A/ TGR0B compare match or input capture TGR1A/ TGR1B compare match or input capture TGR2A/ TGR2B compare match or input capture TGR3A/ -- TGR3B compare match or input capture -- Interrupt sources 5 sources 4 sources 4 sources 5 sources 4 sources * Compare * match or input capture 0A Compare * match or input capture 1A 4 sources Compare * Compare * Compare * Compare match or match or match or match or input input input input capture 2A capture 3A capture 4A capture 5A * Compare * Compare * Compare * Compare * Compare * Compare match or match or match or match or match or match or input input input input input input capture 0B capture 1B capture 2B capture 3B capture 4B capture 5B * Compare * Overflow match or * Underflow input capture 0C * Overflow * Underflow * Compare * Overflow match or * Underflow input capture 3C * Compare match or input capture 0D * Compare match or input capture 3D * Overflow * Overflow * Overflow * Underflow Legend: : Possible -- : Not possible Page 304 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 10.1.2 Section 10 16-Bit Timer Pulse Unit (TPU) Block Diagram TIOR (H, L): TIER: TSR: TGR (A, B, C, D): TGRD TGRB TGRC TGRB Interrupt request signals Channel 3: TGI3A TGI3B TGI3C TGI3D TCI3V Channel 4: TGI4A TGI4B TCI4V TCI4U Channel 5: TGI5A TGI5B TCI5V TCI5U Internal data bus A/D converter conversion start signal TGRD PPG output trigger signal TGRC TGRB TGRB TGRB TCNT TCNT TGRA TCNT TGRA TGRA Bus interface TGRB TCNT TCNT TGRA TCNT TGRA TSR TSR Module data bus TSTR TSYR TSR TIER TIER TSR TIOR TIOR TGRA TSR TIER TIER TIER TSR TIOR TIOR TIORH TIORL TIER TMDR TIORH TIORL TCR TMDR Channel 4 TCR TMDR Channel 5 Common Control logic TMDR TCR TMDR Channel 1 TCR Channel 0 Legend: TSTR: Timer start register TSYR: Timer synchronous register TCR: Timer control register TMDR: Timer mode register Channel 2 Control logic for channels 0 to 2 Input/output pins TIOCA0 Channel 0: TIOCB0 TIOCC0 TIOCD0 TIOCA1 Channel 1: TIOCB1 TIOCA2 Channel 2: TIOCB2 TMDR Clock input Internal clock: /1 /4 /16 /64 /256 /1024 /4096 External clock: TCLKA TCLKB TCLKC TCLKD TCR Control logic for channels 3 to 5 Input/output pins Channel 3: TIOCA3 TIOCB3 TIOCC3 TIOCD3 TIOCA4 Channel 4: TIOCB4 TIOCA5 Channel 5: TIOCB5 TCR Channel 3 Figure 10.1 shows a block diagram of the TPU. Interrupt request signals Channel 0: TGI0A TGI0B TGI0C TGI0D TCI0V Channel 1: TGI1A TGI1B TCI1V TCI1U Channel 2: TGI2A TGI2B TCI2V TCI2U Timer I/O control registers (H, L) Timer interrupt enable register Timer status register Timer general registers (A, B, C, D) Figure 10.1 Block Diagram of TPU REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 305 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) 10.1.3 Pin Configuration Table 10.2 summarizes the TPU pins. Table 10.2 TPU Pins Channel Name Symbol I/O Function All Clock input A TCLKA Input External clock A input pin (Channel 1 and 5 phase counting mode A phase input) Clock input B TCLKB Input External clock B input pin (Channel 1 and 5 phase counting mode B phase input) Clock input C TCLKC Input External clock C input pin (Channel 2 and 4 phase counting mode A phase input) Clock input D TCLKD Input External clock D input pin (Channel 2 and 4 phase counting mode B phase input) Input capture/out TIOCA0 compare match A0 I/O TGR0A input capture input/output compare output/PWM output pin Input capture/out TIOCB0 compare match B0 I/O TGR0B input capture input/output compare output/PWM output pin Input capture/out TIOCC0 compare match C0 I/O TGR0C input capture input/output compare output/PWM output pin Input capture/out TIOCD0 compare match D0 I/O TGR0D input capture input/output compare output/PWM output pin Input capture/out TIOCA1 compare match A1 I/O TGR1A input capture input/output compare output/PWM output pin Input capture/out TIOCB1 compare match B1 I/O TGR1B input capture input/output compare output/PWM output pin Input capture/out TIOCA2 compare match A2 I/O TGR2A input capture input/output compare output/PWM output pin Input capture/out TIOCB2 compare match B2 I/O TGR2B input capture input/output compare output/PWM output pin 0 1 2 Page 306 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Name Symbol I/O Function 3 Input capture/out TIOCA3 compare match A3 I/O TGR3A input capture input/output compare output/PWM output pin Input capture/out TIOCB3 compare match B3 I/O TGR3B input capture input/output compare output/PWM output pin Input capture/out TIOCC3 compare match C3 I/O TGR3C input capture input/output compare output/PWM output pin Input capture/out TIOCD3 compare match D3 I/O TGR3D input capture input/output compare output/PWM output pin Input capture/out TIOCA4 compare match A4 I/O TGR4A input capture input/output compare output/PWM output pin Input capture/out TIOCB4 compare match B4 I/O TGR4B input capture input/output compare output/PWM output pin Input capture/out TIOCA5 compare match A5 I/O TGR5A input capture input/output compare output/PWM output pin Input capture/out TIOCB5 compare match B5 I/O TGR5B input capture input/output compare output/PWM output pin 4 5 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 307 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) 10.1.4 Register Configuration Table 10.3 summarizes the TPU registers. Table 10.3 TPU Registers Channel Name Abbreviation R/W Initial Value Address* 0 Timer control register 0 TCR0 R/W H'00 H'FF10 Timer mode register 0 TMDR0 R/W H'C0 H'FF11 Timer I/O control register 0H TIOR0H R/W H'00 H'FF12 Timer I/O control register 0L TIOR0L R/W H'00 H'FF13 1 2 Timer interrupt enable register 0 TIER0 R/W Timer status register 0 TSR0 R/(W)* Timer counter 0 TCNT0 Timer general register 0A 1 H'40 H'FF14 H'C0 H'FF15 R/W H'0000 H'FF16 TGR0A R/W H'FFFF H'FF18 Timer general register 0B TGR0B R/W H'FFFF H'FF1A Timer general register 0C TGR0C R/W H'FFFF H'FF1C Timer general register 0D TGR0D R/W H'FFFF H'FF1E Timer control register 1 TCR1 R/W H'00 H'FF20 Timer mode register 1 TMDR1 R/W H'C0 H'FF21 Timer I/O control register 1 TIOR1 R/W H'00 H'FF22 Timer interrupt enable register 1 TIER1 R/W Timer status register 1 TSR1 R/(W)* Timer counter 1 TCNT1 Timer general register 1A 2 H'40 H'FF24 H'C0 H'FF25 R/W H'0000 H'FF26 TGR1A R/W H'FFFF H'FF28 Timer general register 1B TGR1B R/W H'FFFF H'FF2A Timer control register 2 TCR2 R/W H'00 H'FF30 Timer mode register 2 TMDR2 R/W H'C0 H'FF31 Timer I/O control register 2 TIOR2 R/W H'00 H'FF32 Timer interrupt enable register 2 TIER2 R/W H'FF34 H'FF35 H'FF36 2 Timer status register 2 TSR2 H'40 2 * R/(W) H'C0 Timer counter 2 TCNT2 R/W H'0000 Timer general register 2A TGR2A R/W H'FFFF H'FF38 Timer general register 2B TGR2B R/W H'FFFF H'FF3A Page 308 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Name Abbreviation R/W Initial Value Address* 3 Timer control register 3 TCR3 R/W H'00 H'FE80 Timer mode register 3 TMDR3 R/W H'C0 H'FE81 Timer I/O control register 3H TIOR3H R/W H'00 H'FE82 Timer I/O control register 3L TIOR3L R/W H'00 H'FE83 H'40 H'FE84 H'C0 H'FE85 4 5 All 1 Timer interrupt enable register 3 TIER3 R/W Timer status register 3 TSR3 R/(W)* Timer counter 3 TCNT3 R/W H'0000 H'FE86 Timer general register 3A TGR3A R/W H'FFFF H'FE88 Timer general register 3B TGR3B R/W H'FFFF H'FE8A Timer general register 3C TGR3C R/W H'FFFF H'FE8C Timer general register 3D TGR3D R/W H'FFFF H'FE8E Timer control register 4 TCR4 R/W H'00 H'FE90 Timer mode register 4 TMDR4 R/W H'C0 H'FE91 Timer I/O control register 4 TIOR4 R/W H'00 H'FE92 2 Timer interrupt enable register 4 TIER4 R/W H'40 H'FE94 Timer status register 4 TSR4 R/(W) * H'C0 H'FE95 Timer counter 4 TCNT4 R/W H'0000 H'FE96 Timer general register 4A TGR4A R/W H'FFFF H'FE98 Timer general register 4B TGR4B R/W H'FFFF H'FE9A Timer control register 5 TCR5 R/W H'00 H'FEA0 Timer mode register 5 TMDR5 R/W H'C0 H'FEA1 Timer I/O control register 5 TIOR5 R/W H'00 H'FEA2 Timer interrupt enable register 5 TIER5 R/W H'FEA4 H'FEA6 2 Timer status register 5 TSR5 H'40 2 * R/(W) H'C0 Timer counter 5 TCNT5 R/W H'0000 Timer general register 5A TGR5A R/W H'FFFF H'FEA8 Timer general register 5B TGR5B R/W H'FFFF H'FEAA Timer start register TSTR R/W H'00 H'FEB0 Timer synchro register TSYR R/W H'00 H'FEB1 Module stop control register A MSTPCRA R/W H'3F H'FDE8 H'FEA5 Notes: 1. Lower 16 bits of the address. 2. Can only be written with 0 for flag clearing. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 309 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) 10.2 Register Descriptions 10.2.1 Timer Control Register (TCR) Channel 0: TCR0 Channel 3: TCR3 Bit : 7 6 5 4 3 2 1 0 CCLR2 CCLR1 CCLR0 CKEG1 CKEG0 TPSC2 TPSC1 TPSC0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 Initial value : R/W : Channel 1: TCR1 Channel 2: TCR2 Channel 4: TCR4 Channel 5: TCR5 Bit : -- CCLR1 CCLR0 CKEG1 CKEG0 TPSC2 TPSC1 TPSC0 Initial value : 0 0 0 0 0 0 0 0 R/W -- R/W R/W R/W R/W R/W R/W R/W : The TCR registers are 8-bit registers that control the TCNT channels. The TPU has six TCR registers, one for each of channels 0 to 5. The TCR registers are initialized to H'00 by a reset, and in hardware standby mode. TCR register settings should be made only when TCNT operation is stopped. Page 310 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Bits 7 to 5--Counter Clear 2 to 0 (CCLR2 to CCLR0): These bits select the TCNT counter clearing source. Channel Bit 7 CCLR2 Bit 6 CCLR1 Bit 5 CCLR0 Description 0, 3 0 0 0 TCNT clearing disabled 1 TCNT cleared by TGRA compare match/input capture 0 TCNT cleared by TGRB compare match/input capture 1 TCNT cleared by counter clearing for another channel performing synchronous clearing/ 1 synchronous operation* 0 TCNT clearing disabled 1 TCNT cleared by TGRC compare match/input 2 capture* 0 TCNT cleared by TGRD compare match/input 2 capture* 1 TCNT cleared by counter clearing for another channel performing synchronous clearing/ 1 synchronous operation* 1 1 0 1 (Initial value) Channel Bit 7 Bit 6 3 Reserved* CCLR1 Bit 5 CCLR0 Description 1, 2, 4, 5 0 0 TCNT clearing disabled 1 TCNT cleared by TGRA compare match/input capture 0 TCNT cleared by TGRB compare match/input capture 1 TCNT cleared by counter clearing for another channel performing synchronous clearing/ 1 synchronous operation* 0 1 (Initial value) Notes: 1. Synchronous operation setting is performed by setting the SYNC bit in TSYR to 1. 2. When TGRC or TGRD is used as a buffer register, TCNT is not cleared because the buffer register setting has priority, and compare match/input capture does not occur. 3. Bit 7 is reserved in channels 1, 2, 4, and 5. It is always read as 0 and cannot be modified. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 311 of 1126 Section 10 16-Bit Timer Pulse Unit (TPU) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bits 4 and 3--Clock Edge 1 and 0 (CKEG1, CKEG0): These bits select the input clock edge. When the input clock is counted using both edges, the input clock period is halved (e.g. /4 both edges = /2 rising edge). If phase counting mode is used on channels 1, 2, 4, and 5, this setting is ignored and the phase counting mode setting has priority. Bit 4 CKEG1 Bit 3 CKEG0 Description 0 0 Count at rising edge 1 Count at falling edge -- Count at both edges 1 (Initial value) Note: Internal clock edge selection is valid when the input clock is /4 or slower. This setting is ignored if the input clock is /1, or when overflow/underflow of another channel is selected. Bits 2 to 0--Time Prescaler 2 to 0 (TPSC2 to TPSC0): These bits select the TCNT counter clock. The clock source can be selected independently for each channel. Table 10.4 shows the clock sources that can be set for each channel. Table 10.4 TPU Clock Sources Internal Clock Channel /1 /4 /16 /64 /256 /1024 /4096 Overflow/ Underflow External Clock on Another TCLKA TCLKB TCLKC TCLKD Channel 0 1 2 3 4 5 Legend: : Setting Blank: No setting Page 312 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Bit 2 TPSC2 Bit 1 TPSC1 Bit 0 TPSC0 Description 0 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /4 0 Internal clock: counts on /16 1 Internal clock: counts on /64 0 External clock: counts on TCLKA pin input 1 External clock: counts on TCLKB pin input 0 External clock: counts on TCLKC pin input 1 External clock: counts on TCLKD pin input 1 1 0 1 (Initial value) Channel Bit 2 TPSC2 Bit 1 TPSC1 Bit 0 TPSC0 Description 1 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /4 1 0 Internal clock: counts on /16 1 Internal clock: counts on /64 0 0 External clock: counts on TCLKA pin input 1 External clock: counts on TCLKB pin input 0 Internal clock: counts on /256 1 Counts on TCNT2 overflow/underflow 1 1 (Initial value) Note: This setting is ignored when channel 1 is in phase counting mode. Channel Bit 2 TPSC2 Bit 1 TPSC1 Bit 0 TPSC0 Description 2 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /4 1 0 Internal clock: counts on /16 1 Internal clock: counts on /64 0 0 External clock: counts on TCLKA pin input 1 External clock: counts on TCLKB pin input 0 External clock: counts on TCLKC pin input 1 Internal clock: counts on /1024 1 1 (Initial value) Note: This setting is ignored when channel 2 is in phase counting mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 313 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Bit 2 TPSC2 Bit 1 TPSC1 Bit 0 TPSC0 Description 3 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /4 0 Internal clock: counts on /16 1 Internal clock: counts on /64 0 External clock: counts on TCLKA pin input 1 Internal clock: counts on /1024 0 Internal clock: counts on /256 1 Internal clock: counts on /4096 1 1 0 1 (Initial value) Channel Bit 2 TPSC2 Bit 1 TPSC1 Bit 0 TPSC0 Description 4 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /4 1 0 Internal clock: counts on /16 1 Internal clock: counts on /64 0 0 External clock: counts on TCLKA pin input 1 External clock: counts on TCLKC pin input 0 Internal clock: counts on /1024 1 Counts on TCNT5 overflow/underflow 1 1 (Initial value) Note: This setting is ignored when channel 4 is in phase counting mode. Channel Bit 2 TPSC2 Bit 1 TPSC1 Bit 0 TPSC0 Description 5 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /4 1 0 Internal clock: counts on /16 1 Internal clock: counts on /64 0 0 External clock: counts on TCLKA pin input 1 External clock: counts on TCLKC pin input 0 Internal clock: counts on /256 1 External clock: counts on TCLKD pin input 1 1 (Initial value) Note: This setting is ignored when channel 5 is in phase counting mode. Page 314 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 10.2.2 Section 10 16-Bit Timer Pulse Unit (TPU) Timer Mode Register (TMDR) Channel 0: TMDR0 Channel 3: TMDR3 Bit : 7 6 5 4 3 2 1 0 -- -- BFB BFA MD3 MD2 MD1 MD0 Initial value : 1 1 0 0 0 0 0 0 R/W -- -- R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- MD3 MD2 MD1 MD0 Initial value : 1 1 0 0 0 0 0 0 R/W -- -- -- -- R/W R/W R/W R/W : Channel 1: TMDR1 Channel 2: TMDR2 Channel 4: TMDR4 Channel 5: TMDR5 Bit : : The TMDR registers are 8-bit readable/writable registers that are used to set the operating mode for each channel. The TPU has six TMDR registers, one for each channel. The TMDR registers are initialized to H'C0 by a reset, and in hardware standby mode. TMDR register settings should be made only when TCNT operation is stopped. Bits 7 and 6--Reserved: It is always read as 1 and cannot be modified. Bit 5--Buffer Operation B (BFB): Specifies whether TGRB is to operate in the normal way, or TGRB and TGRD are to be used together for buffer operation. When TGRD is used as a buffer register, TGRD input capture/output compare is not generated. In channels 1, 2, 4, and 5, which have no TGRD, bit 5 is reserved. It is always read as 0 and cannot be modified. Bit 5 BFB Description 0 TGRB operates normally 1 TGRB and TGRD used together for buffer operation REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 315 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Bit 4--Buffer Operation A (BFA): Specifies whether TGRA is to operate in the normal way, or TGRA and TGRC are to be used together for buffer operation. When TGRC is used as a buffer register, TGRC input capture/output compare is not generated. In channels 1, 2, 4, and 5, which have no TGRC, bit 4 is reserved. It is always read as 0 and cannot be modified. Bit 4 BFA Description 0 TGRA operates normally 1 TGRA and TGRC used together for buffer operation (Initial value) Bits 3 to 0--Modes 3 to 0 (MD3 to MD0): These bits are used to set the timer operating mode. Bit 3 1 MD3* Bit 2 2 MD2* Bit 1 MD1 Bit 0 MD0 Description 0 0 0 0 Normal operation 1 Reserved 0 PWM mode 1 1 PWM mode 2 0 Phase counting mode 1 1 Phase counting mode 2 0 Phase counting mode 3 1 Phase counting mode 4 * -- 1 1 0 1 1 * * (Initial value) *: Don't care Notes: 1. MD3 is a reserved bit. In a write, it should always be written with 0. 2. Phase counting mode cannot be set for channels 0 and 3. In this case, 0 should always be written to MD2. Page 316 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 10.2.3 Section 10 16-Bit Timer Pulse Unit (TPU) Timer I/O Control Register (TIOR) Channel 0: TIOR0H Channel 1: TIOR1 Channel 2: TIOR2 Channel 3: TIOR3H Channel 4: TIOR4 Channel 5: TIOR5 Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 IOB3 IOB2 IOB1 IOB0 IOA3 IOA2 IOA1 IOA0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 IOD3 IOD2 IOD1 IOD0 IOC3 IOC2 IOC1 IOC0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W Channel 0: TIOR0L Channel 3: TIOR3L Bit : Initial value : R/W : Note: When TGRC or TGRD is designated for buffer operation, this setting is invalid and the register operates as a buffer register. The TIOR registers are 8-bit registers that control the TGR registers. The TPU has eight TIOR registers, two each for channels 0 and 3, and one each for channels 1, 2, 4, and 5. The TIOR registers are initialized to H'00 by a reset, and in hardware standby mode. Care is required since TIOR is affected by the TMDR setting. The initial output specified by TIOR is valid when the counter is stopped (the CST bit in TSTR is cleared to 0). Note also that, in PWM mode 2, the output at the point at which the counter is cleared to 0 is specified. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 317 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Bits 7 to 4-- I/O Control B3 to B0 (IOB3 to IOB0) I/O Control D3 to D0 (IOD3 to IOD0): Bits IOB3 to IOB0 specify the function of TGRB. Bits IOD3 to IOD0 specify the function of TGRD. Channel Bit 7 Bit 6 Bit 5 Bit 4 IOB3 IOB2 IOB1 IOB0 Description 0 0 0 0 0 1 1 0 TGR0B is output compare register Output disabled Initial output is 0 output 1 1 0 1 0 0 0 Output disabled 1 Initial output is 1 output 0 0 1 1 Note: 1 * * * 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 (Initial value) 0 output at compare match TGR0B is input capture register Capture input source is TIOCB0 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT1 Capture input 1 source is channel count-up/count-down* 1/count clock *: Don't care 1. When bits TPSC2 to TPSC0 in TCR1 are set to B'000 and /1 is used as the TCNT1 count clock, this setting is invalid and input capture is not generated. Page 318 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Bit 7 Bit 6 Bit 5 Bit 4 IOD3 IOD2 IOD1 IOD0 Description 0 0 0 0 0 1 0 1 Output disabled TGR0D is output Initial output is 0 compare output 2 register* 1 1 0 0 0 Output disabled 1 1 0 Initial output is 1 output 0 0 1 1 1 * * * 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Capture input TGR0D source is is input TIOCD0 pin capture 2 register* Capture input source is channel 1/count clock Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT1 1 count-up/count-down* *: Don't care Notes: 1. When bits TPSC2 to TPSC0 in TCR1 are set to B'000 and /1 is used as the TCNT1 count clock, this setting is invalid and input capture is not generated. 2. When the BFB bit in TMDR0 is set to 1 and TGR0D is used as a buffer register, this setting is invalid and input capture/output compare is not generated. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 319 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Bit 7 Bit 6 Bit 5 Bit 4 IOB3 IOB2 IOB1 IOB0 Description 1 0 0 0 0 1 0 1 TGR1B is output compare register Output disabled Initial output is 0 output 1 1 0 0 0 Output disabled 1 1 0 Initial output is 1 output 0 0 1 1 1 * * * 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match TGR1B is input capture register Capture input source is TIOCB1 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at generation of source is TGR0C TGR0C compare match/input compare match/ capture input capture *: Don't care Channel Bit 7 Bit 6 Bit 5 Bit 4 IOB3 IOB2 IOB1 IOB0 Description 2 0 0 0 0 1 1 0 TGR2B is output compare register Output disabled Initial output is 0 output 1 1 0 1 * 0 0 Output disabled 1 Initial output is 1 output 0 0 1 1 * 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match TGR2B is input capture register Capture input source is TIOCB2 pin Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care Page 320 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Bit 7 Bit 6 Bit 5 Bit 4 IOB3 IOB2 IOB1 IOB0 Description 3 0 0 0 0 1 0 1 TGR3B is output compare register Output disabled Initial output is 0 output 0 1 0 Output disabled 1 Initial output is 1 output 0 0 0 0 1 1 Note: 1 * * * 1 output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 0 output at compare match Toggle output at compare match 1 1 (Initial value) TGR3B is input capture register Capture input source is TIOCB3 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT4 1 source is channel count-up/count-down* 4/count clock *: Don't care 1. When bits TPSC2 to TPSC0 in TCR4 are set to B'000 and /1 is used as the TCNT4 count clock, this setting is invalid and input capture is not generated. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 321 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Bit 7 Bit 6 Bit 5 Bit 4 IOD3 IOD2 IOD1 IOD0 Description 3 0 0 0 0 1 0 1 Output disabled TGR3D is output Initial output is 0 compare output 2 register* 1 1 0 0 0 Output disabled 1 1 0 Initial output is 1 output 0 0 1 1 1 * * * 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match TGR3D Capture input is input source is capture TIOCD3 pin 2 register* Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT4 1 source is channel count-up/count-down* 4/count clock *: Don't care Notes: 1. When bits TPSC2 to TPSC0 in TCR4 are set to B'000 and /1 is used as the TCNT4 count clock, this setting is invalid and input capture is not generated. 2. When the BFB bit in TMDR3 is set to 1 and TGR3D is used as a buffer register, this setting is invalid and input capture/output compare is not generated. Page 322 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Bit 7 Bit 6 Bit 5 Bit 4 IOB3 IOB2 IOB1 IOB0 Description 4 0 0 0 0 1 0 1 TGR4B is output compare register Output disabled Initial output is 0 output 1 1 0 1 0 0 0 Output disabled 1 Initial output is 1 output 0 0 1 1 1 * * * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 (Initial value) TGR4B is input capture register Capture input source is TIOCB4 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at generation of source is TGR3C TGR3C compare match/ compare match/ input capture input capture *: Don't care Channel Bit 7 Bit 6 Bit 5 Bit 4 IOB3 IOB2 IOB1 IOB0 Description 5 0 0 0 0 1 1 0 TGR5B is output compare register Output disabled Initial output is 0 output 1 1 0 1 * 0 0 Output disabled 1 Initial output is 1 output 0 0 1 1 * 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match TGR5B is input capture register Capture input source is TIOCB5 pin Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 323 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Bits 3 to 0-- I/O Control A3 to A0 (IOA3 to IOA0) I/O Control C3 to C0 (IOC3 to IOC0): IOA3 to IOA0 specify the function of TGRA. IOC3 to IOC0 specify the function of TGRC. Channel Bit 3 Bit 2 Bit 1 Bit 0 IOA3 IOA2 IOA1 IOA0 Description 0 0 0 0 0 1 1 0 TGR0A is output compare register Output disabled Initial output is 0 output 1 1 0 1 0 0 0 Output disabled 1 Initial output is 1 output 0 0 1 1 1 * * * 1 output at compare match Toggle output at compare match 1 1 (Initial value) 0 output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match TGR0A is input capture register Capture input source is TIOCA0 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT1 Capture input source is channel count-up/count-down 1/ count clock *: Don't care Page 324 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Bit 3 Bit 2 Bit 1 Bit 0 IOC3 IOC2 IOC1 IOC0 Description 0 0 0 0 0 1 1 0 Output disabled TGR0C is output Initial output is 0 compare output 1 register* 0 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 0 1 1 Note: 1 * * * 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Capture input TGR0C source is is input TIOCC0 pin capture 1 register* Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT1 source is channel count-up/count-down 1/count clock *: Don't care 1. When the BFA bit in TMDR0 is set to 1 and TGR0C is used as a buffer register, this setting is invalid and input capture/output compare is not generated. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 325 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Bit 3 Bit 2 Bit 1 Bit 0 IOA3 IOA2 IOA1 IOA0 Description 1 0 0 0 0 1 1 0 TGR1A is output compare register Output disabled Initial output is 0 output 0 1 0 Output disabled 1 Initial output is 1 output 0 0 0 0 1 1 1 * * * 1 output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 0 output at compare match Toggle output at compare match 1 1 (Initial value) TGR1A is input capture register Capture input source is TIOCA1 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at generation of source is TGR0A channel 0/TGR0A compare compare match/ match/input capture input capture *: Don't care Page 326 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Bit 3 Bit 2 Bit 1 Bit 0 IOA3 IOA2 IOA1 IOA0 Description 2 0 0 0 0 1 1 0 TGR2A is output compare register Output disabled Initial output is 0 output 0 1 0 Output disabled 1 Initial output is 1 output 0 * 0 0 1 1 * 1 output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 0 output at compare match Toggle output at compare match 1 1 (Initial value) TGR2A is input capture register Capture input source is TIOCA2 pin Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care Channel Bit 3 Bit 2 Bit 1 Bit 0 IOA3 IOA2 IOA1 IOA0 Description 3 0 0 0 0 1 1 0 TGR3A is output compare register Output disabled Initial output is 0 output 1 1 0 1 0 0 0 Output disabled 1 Initial output is 1 output 0 0 1 1 1 * * * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 (Initial value) TGR3A is input capture register Capture input source is TIOCA3 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT4 Capture input source is channel count-up/count-down 4/count clock *: Don't care REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 327 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Bit 3 Bit 2 Bit 1 Bit 0 IOC3 IOC2 IOC1 IOC0 Description 3 0 0 0 0 1 1 0 Output disabled TGR3C is output Initial output is 0 compare output 1 register* 0 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 0 1 1 Note: 1 * * * 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Capture input TGR3C source is is input TIOCC3 pin capture 1 register* Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT4 source is channel count-up/count-down 4/count clock *: Don't care 1. When the BFA bit in TMDR3 is set to 1 and TGR3C is used as a buffer register, this setting is invalid and input capture/output compare is not generated. Page 328 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel Bit 3 Bit 2 Bit 1 Bit 0 IOA3 IOA2 IOA1 IOA0 Description 4 0 0 0 0 1 0 1 TGR4A is output compare register Output disabled Initial output is 0 output 1 1 0 0 0 Output disabled 1 1 0 Initial output is 1 output 0 0 1 1 1 * * * 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match TGR4A is input capture register Capture input source is TIOCA4 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at generation of source is TGR3A TGR3A compare match/input compare match/ capture input capture *: Don't care Channel Bit 3 Bit 2 Bit 1 Bit 0 IOA3 IOA2 IOA1 IOA0 Description 5 0 0 0 0 1 1 0 TGR5A is output compare register Output disabled Initial output is 0 output 1 1 0 1 * 0 0 Output disabled 1 Initial output is 1 output 0 0 1 1 * 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match TGR5A is input capture register Capture input source is TIOCA5 pin Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 329 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) 10.2.4 Timer Interrupt Enable Register (TIER) Channel 0: TIER0 Channel 3: TIER3 Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 TTGE -- -- TCIEV TGIED TGIEC TGIEB TGIEA 0 1 0 0 0 0 0 0 R/W -- -- R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 TTGE -- TCIEU TCIEV -- -- TGIEB TGIEA 0 1 0 0 0 0 0 0 R/W -- R/W R/W -- -- R/W R/W Channel 1: TIER1 Channel 2: TIER2 Channel 4: TIER4 Channel 5: TIER5 Bit : Initial value : R/W : The TIER registers are 8-bit registers that control enabling or disabling of interrupt requests for each channel. The TPU has six TIER registers, one for each channel. The TIER registers are initialized to H'40 by a reset, and in hardware standby mode. Page 330 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Bit 7--A/D Conversion Start Request Enable (TTGE): Enables or disables generation of A/D conversion start requests by TGRA input capture/compare match. Bit 7 TTGE Description 0 A/D conversion start request generation disabled 1 A/D conversion start request generation enabled (Initial value) Bit 6--Reserved: It is always read as 1 and cannot be modified. Bit 5--Underflow Interrupt Enable (TCIEU): Enables or disables interrupt requests (TCIU) by the TCFU flag when the TCFU flag in TSR is set to 1 in channels 1, 2, 4, and 5. In channels 0 and 3, bit 5 is reserved. It is always read as 0 and cannot be modified. Bit 5 TCIEU Description 0 Interrupt requests (TCIU) by TCFU disabled 1 Interrupt requests (TCIU) by TCFU enabled (Initial value) Bit 4--Overflow Interrupt Enable (TCIEV): Enables or disables interrupt requests (TCIV) by the TCFV flag when the TCFV flag in TSR is set to 1. Bit 4 TCIEV Description 0 Interrupt requests (TCIV) by TCFV disabled 1 Interrupt requests (TCIV) by TCFV enabled (Initial value) Bit 3--TGR Interrupt Enable D (TGIED): Enables or disables interrupt requests (TGID) by the TGFD bit when the TGFD bit in TSR is set to 1 in channels 0 and 3. In channels 1, 2, 4, and 5, bit 3 is reserved. It is always read as 0 and cannot be modified. Bit 3 TGIED Description 0 Interrupt requests (TGID) by TGFD bit disabled 1 Interrupt requests (TGID) by TGFD bit enabled REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 331 of 1126 Section 10 16-Bit Timer Pulse Unit (TPU) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 2--TGR Interrupt Enable C (TGIEC): Enables or disables interrupt requests (TGIC) by the TGFC bit when the TGFC bit in TSR is set to 1 in channels 0 and 3. In channels 1, 2, 4, and 5, bit 2 is reserved. It is always read as 0 and cannot be modified. Bit 2 TGIEC Description 0 Interrupt requests (TGIC) by TGFC bit disabled 1 Interrupt requests (TGIC) by TGFC bit enabled (Initial value) Bit 1--TGR Interrupt Enable B (TGIEB): Enables or disables interrupt requests (TGIB) by the TGFB bit when the TGFB bit in TSR is set to 1. Bit 1 TGIEB Description 0 Interrupt requests (TGIB) by TGFB bit disabled 1 Interrupt requests (TGIB) by TGFB bit enabled (Initial value) Bit 0--TGR Interrupt Enable A (TGIEA): Enables or disables interrupt requests (TGIA) by the TGFA bit when the TGFA bit in TSR is set to 1. Bit 0 TGIEA Description 0 Interrupt requests (TGIA) by TGFA bit disabled 1 Interrupt requests (TGIA) by TGFA bit enabled Page 332 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 10.2.5 Section 10 16-Bit Timer Pulse Unit (TPU) Timer Status Register (TSR) Channel 0: TSR0 Channel 3: TSR3 Bit : 7 6 5 4 3 2 1 0 -- -- -- TCFV TGFD TGFC TGFB TGFA 1 1 0 0 0 0 0 0 -- R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Initial value : R/W : -- -- Note: * Can only be written with 0 for flag clearing. Channel 1: TSR1 Channel 2: TSR2 Channel 4: TSR4 Channel 5: TSR5 Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 TCFD -- TCFU TCFV -- -- TGFB TGFA 1 1 0 0 0 0 0 0 -- R/(W)* R/(W)* -- R/(W)* R/(W)* R -- Note: * Can only be written with 0 for flag clearing. The TSR registers are 8-bit registers that indicate the status of each channel. The TPU has six TSR registers, one for each channel. The TSR registers are initialized to H'C0 by a reset, and in hardware standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 333 of 1126 Section 10 16-Bit Timer Pulse Unit (TPU) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 7--Count Direction Flag (TCFD): Status flag that shows the direction in which TCNT counts in channels 1, 2, 4, and 5. In channels 0 and 3, bit 7 is reserved. It is always read as 1 and cannot be modified. Bit 7 TCFD Description 0 TCNT counts down 1 TCNT counts up (Initial value) Bit 6--Reserved: It is always read as 1 and cannot be modified. Bit 5--Underflow Flag (TCFU): Status flag that indicates that TCNT underflow has occurred when channels 1, 2, 4, and 5 are set to phase counting mode. In channels 0 and 3, bit 5 is reserved. It is always read as 0 and cannot be modified. Bit 5 TCFU Description 0 [Clearing condition] (Initial value) When 0 is written to TCFU after reading TCFU = 1 1 [Setting condition] When the TCNT value underflows (changes from H'0000 to H'FFFF) Bit 4--Overflow Flag (TCFV): Status flag that indicates that TCNT overflow has occurred. Bit 4 TCFV Description 0 [Clearing condition] (Initial value) When 0 is written to TCFV after reading TCFV = 1 1 [Setting condition] When the TCNT value overflows (changes from H'FFFF to H'0000 ) Page 334 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Bit 3--Input Capture/Output Compare Flag D (TGFD): Status flag that indicates the occurrence of TGRD input capture or compare match in channels 0 and 3. In channels 1, 2, 4, and 5, bit 3 is reserved. It is always read as 0 and cannot be modified. Bit 3 TGFD Description 0 [Clearing conditions] 1 (Initial value) * When DTC is activated by TGID interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFD after reading TGFD = 1 [Setting conditions] * When TCNT = TGRD while TGRD is functioning as output compare register * When TCNT value is transferred to TGRD by input capture signal while TGRD is functioning as input capture register Bit 2--Input Capture/Output Compare Flag C (TGFC): Status flag that indicates the occurrence of TGRC input capture or compare match in channels 0 and 3. In channels 1, 2, 4, and 5, bit 2 is reserved. It is always read as 0 and cannot be modified. Bit 2 TGFC Description 0 [Clearing conditions] 1 * When DTC is activated by TGIC interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFC after reading TGFC = 1 [Setting conditions] * When TCNT = TGRC while TGRC is functioning as output compare register * When TCNT value is transferred to TGRC by input capture signal while TGRC is functioning as input capture register REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 335 of 1126 Section 10 16-Bit Timer Pulse Unit (TPU) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 1--Input Capture/Output Compare Flag B (TGFB): Status flag that indicates the occurrence of TGRB input capture or compare match. Bit 1 TGFB Description 0 [Clearing conditions] 1 (Initial value) * When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFB after reading TGFB = 1 [Setting conditions] * When TCNT = TGRB while TGRB is functioning as output compare register * When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register Bit 0--Input Capture/Output Compare Flag A (TGFA): Status flag that indicates the occurrence of TGRA input capture or compare match. Bit 0 TGFA Description 0 [Clearing conditions] 1 (Initial value) * When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFA after reading TGFA = 1 [Setting conditions] * When TCNT = TGRA while TGRA is functioning as output compare register * When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register Page 336 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 10.2.6 Section 10 16-Bit Timer Pulse Unit (TPU) Timer Counter (TCNT) Channel 0: TCNT0 (up-counter) Channel 1: TCNT1 (up/down-counter*) Channel 2: TCNT2 (up/down-counter*) Channel 3: TCNT3 (up-counter) Channel 4: TCNT4 (up/down-counter*) Channel 5: TCNT5 (up/down-counter*) Bit : 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value : 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Note: * These counters can be used as up/down-counters only in phase counting mode or when counting overflow/underflow on another channel. In other cases they function as upcounters. The TCNT registers are 16-bit counters. The TPU has six TCNT counters, one for each channel. The TCNT counters are initialized to H'0000 by a reset, and in hardware standby mode. The TCNT counters cannot be accessed in 8-bit units; they must always be accessed as a 16-bit unit. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 337 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) 10.2.7 Timer General Register (TGR) Bit : 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value : 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W The TGR registers are 16-bit registers with a dual function as output compare and input capture registers. The TPU has 16 TGR registers, four each for channels 0 and 3 and two each for channels 1, 2, 4, and 5. TGRC and TGRD for channels 0 and 3 can also be designated for operation as buffer registers*. The TGR registers are initialized to H'FFFF by a reset, and in hardware standby mode. The TGR registers cannot be accessed in 8-bit units; they must always be accessed as a 16-bit unit. Note: * TGR buffer register combinations are TGRA--TGRC and TGRB--TGRD. Page 338 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 10.2.8 Section 10 16-Bit Timer Pulse Unit (TPU) Timer Start Register (TSTR) Bit : 7 6 5 4 3 2 1 0 -- -- CST5 CST4 CST3 CST2 CST1 CST0 Initial value : 0 0 0 0 0 0 0 0 R/W -- -- R/W R/W R/W R/W R/W R/W : TSTR is an 8-bit readable/writable register that selects operation/stoppage for channels 0 to 5. TSTR is initialized to H'00 by a reset, and in hardware standby mode. When setting the operating mode in TMDR or setting the count clock in TCR, first stop the TCNT counter. Bits 7 and 6--Reserved: Should always be written with 0. Bits 5 to 0--Counter Start 5 to 0 (CST5 to CST0): These bits select operation or stoppage for TCNT. Bit n CSTn Description 0 TCNTn count operation is stopped 1 TCNTn performs count operation (Initial value) n = 5 to 0 Note: If 0 is written to the CST bit during operation with the TIOC pin designated for output, the counter stops but the TIOC pin output compare output level is retained. If TIOR is written to when the CST bit is cleared to 0, the pin output level will be changed to the set initial output value. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 339 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) 10.2.9 Timer Synchro Register (TSYR) Bit : 7 6 5 4 3 2 1 0 -- -- SYNC5 SYNC4 SYNC3 SYNC2 SYNC1 SYNC0 Initial value : 0 0 0 0 0 0 0 0 R/W -- -- R/W R/W R/W R/W R/W R/W : TSYR is an 8-bit readable/writable register that selects independent operation or synchronous operation for the channel 0 to 4 TCNT counters. A channel performs synchronous operation when the corresponding bit in TSYR is set to 1. TSYR is initialized to H'00 by a reset, and in hardware standby mode. Bits 7 and 6--Reserved: Should always be written with 0. Bits 5 to 0--Timer Synchro 5 to 0 (SYNC5 to SYNC0): These bits select whether operation is independent of or synchronized with other channels. When synchronous operation is selected, synchronous presetting of multiple channels* , and 2 synchronous clearing through counter clearing on another channel* are possible. 1 Bit n SYNCn Description 0 TCNTn operates independently (TCNT presetting/clearing is unrelated to other channels) (Initial value) 1 TCNTn performs synchronous operation TCNT synchronous presetting/synchronous clearing is possible n = 5 to 0 Notes: 1. To set synchronous operation, the SYNC bits for at least two channels must be set to 1. 2. To set synchronous clearing, in addition to the SYNC bit , the TCNT clearing source must also be set by means of bits CCLR2 to CCLR0 in TCR. Page 340 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) 10.2.10 Module Stop Control Register A (MSTPCRA) Bit : 7 6 5 4 3 2 1 0 MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value : R/W : 0 0 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W MSTPCRA is an 8-bit readable/writable register that performs module stop mode control. When the MSTPA5 bit in MSTPCRA is set to 1, TPU operation stops at the end of the bus cycle and a transition is made to module stop mode. Registers cannot be read or written to in module stop mode. For details, see section 22.5, Module Stop Mode. MSTPCRA is initialized to H'3F by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 5--Module Stop (MSTPA5): Specifies the TPU module stop mode. Bit 5 MSTPA5 Description 0 TPU module stop mode cleared 1 TPU module stop mode set REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 341 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) 10.3 Interface to Bus Master 10.3.1 16-Bit Registers TCNT and TGR are 16-bit registers. As the data bus to the bus master is 16 bits wide, these registers can be read and written to in 16-bit units. These registers cannot be read or written to in 8-bit units; 16-bit access must always be used. An example of 16-bit register access operation is shown in figure 10.2. Internal data bus H Bus master L Module data bus Bus interface TCNTH TCNTL Figure 10.2 16-Bit Register Access Operation [Bus Master TCNT (16 Bits)] 10.3.2 8-Bit Registers Registers other than TCNT and TGR are 8-bit. As the data bus to the CPU is 16 bits wide, these registers can be read and written to in 16-bit units. They can also be read and written to in 8-bit units. Page 342 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Examples of 8-bit register access operation are shown in figures 10.3, 10.4, and 10.5. Internal data bus H Bus master L Module data bus Bus interface TCR Figure 10.3 8-Bit Register Access Operation [Bus Master TCR (Upper 8 Bits)] Internal data bus H Bus master L Module data bus Bus interface TMDR Figure 10.4 8-Bit Register Access Operation [Bus Master TMDR (Lower 8 Bits)] Internal data bus H Bus master L Module data bus Bus interface TCR TMDR Figure 10.5 8-Bit Register Access Operation [Bus Master TCR and TMDR (16 Bits)] REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 343 of 1126 Section 10 16-Bit Timer Pulse Unit (TPU) 10.4 Operation 10.4.1 Overview H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Operation in each mode is outlined below. Normal Operation: Each channel has a TCNT and TGR register. TCNT performs up-counting, and is also capable of free-running operation, synchronous counting, and external event counting. Each TGR can be used as an input capture register or output compare register. Synchronous Operation: When synchronous operation is designated for a channel, TCNT for that channel performs synchronous presetting. That is, when TCNT for a channel designated for synchronous operation is rewritten, the TCNT counters for the other channels are also rewritten at the same time. Synchronous clearing of the TCNT counters is also possible by setting the timer synchronization bits in TSYR for channels designated for synchronous operation. Buffer Operation * When TGR is an output compare register When a compare match occurs, the value in the buffer register for the relevant channel is transferred to TGR. * When TGR is an input capture register When input capture occurs, the value in TCNT is transfer to TGR and the value previously held in TGR is transferred to the buffer register. Cascaded Operation: The channel 1 counter (TCNT1), channel 2 counter (TCNT2), channel 4 counter (TCNT4), and channel 5 counter (TCNT5) can be connected together to operate as a 32bit counter. PWM Mode: In this mode, a PWM waveform is output. The output level can be set by means of TIOR. A PWM waveform with a duty of between 0% and 100% can be output, according to the setting of each TGR register. Phase Counting Mode: In this mode, TCNT is incremented or decremented by detecting the phases of two clocks input from the external clock input pins in channels 1, 2, 4, and 5. When phase counting mode is set, the corresponding TCLK pin functions as the clock pin, and TCNT performs up- or down-counting. This can be used for two-phase encoder pulse input. Page 344 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 10.4.2 Section 10 16-Bit Timer Pulse Unit (TPU) Basic Functions Counter Operation: When one of bits CST0 to CST5 is set to 1 in TSTR, the TCNT counter for the corresponding channel starts counting. TCNT can operate as a free-running counter, periodic counter, and so on. * Example of count operation setting procedure Figure 10.6 shows an example of the count operation setting procedure. [1] Select the counter clock with bits TPSC2 to TPSC0 in TCR. At the same time, select the input clock edge with bits CKEG1 and CKEG0 in TCR. Operation selection Select counter clock [1] Periodic counter Select counter clearing source [2] Select output compare register [3] Set period [4] Start count operation [5] <Periodic counter> [2] For periodic counter operation, select the TGR to be used as the TCNT clearing source with bits CCLR2 to CCLR0 in TCR. Free-running counter [3] Designate the TGR selected in [2] as an output compare register by means of TIOR. [4] Set the periodic counter cycle in the TGR selected in [2]. Start count operation <Free-running counter> [5] [5] Set the CST bit in TSTR to 1 to start the counter operation. Figure 10.6 Example of Counter Operation Setting Procedure REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 345 of 1126 Section 10 16-Bit Timer Pulse Unit (TPU) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM * Free-running count operation and periodic count operation Immediately after a reset, the TPU's TCNT counters are all designated as free-running counters. When the relevant bit in TSTR is set to 1 the corresponding TCNT counter starts upcount operation as a free-running counter. When TCNT overflows (from H'FFFF to H'0000), the TCFV bit in TSR is set to 1. If the value of the corresponding TCIEV bit in TIER is 1 at this point, the TPU requests an interrupt. After overflow, TCNT starts counting up again from H'0000. Figure 10.7 illustrates free-running counter operation. TCNT value H'FFFF H'0000 Time CST bit TCFV Figure 10.7 Free-Running Counter Operation When compare match is selected as the TCNT clearing source, the TCNT counter for the relevant channel performs periodic count operation. The TGR register for setting the period is designated as an output compare register, and counter clearing by compare match is selected by means of bits CCLR2 to CCLR0 in TCR. After the settings have been made, TCNT starts up-count operation as periodic counter when the corresponding bit in TSTR is set to 1. When the count value matches the value in TGR, the TGF bit in TSR is set to 1 and TCNT is cleared to H'0000. If the value of the corresponding TGIE bit in TIER is 1 at this point, the TPU requests an interrupt. After a compare match, TCNT starts counting up again from H'0000. Page 346 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Figure 10.8 illustrates periodic counter operation. Counter cleared by TGR compare match TCNT value TGR H'0000 Time CST bit Flag cleared by software or DTC activation TGF Figure 10.8 Periodic Counter Operation Waveform Output by Compare Match: The TPU can perform 0, 1, or toggle output from the corresponding output pin using compare match. * Example of setting procedure for waveform output by compare match Figure 10.9 shows an example of the setting procedure for waveform output by compare match Output selection Select waveform output mode [1] [1] Select initial value 0 output or 1 output, and compare match output value 0 output, 1 output, or toggle output, by means of TIOR. The set initial value is output at the TIOC pin until the first compare match occurs. [2] Set the timing for compare match generation in TGR. Set output timing [2] Start count operation [3] [3] Set the CST bit in TSTR to 1 to start the count operation. <Waveform output> Figure 10.9 Example Of Setting Procedure For Waveform Output By Compare Match REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 347 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) * Examples of waveform output operation Figure 10.10 shows an example of 0 output/1 output. In this example TCNT has been designated as a free-running counter, and settings have been made so that 1 is output by compare match A, and 0 is output by compare match B. When the set level and the pin level coincide, the pin level does not change. TCNT value H'FFFF TGRA TGRB Time H'0000 No change No change 1 output TIOCA TIOCB No change No change 0 output Figure 10.10 Example of 0 Output/1 Output Operation Figure 10.11 shows an example of toggle output. In this example TCNT has been designated as a periodic counter (with counter clearing performed by compare match B), and settings have been made so that output is toggled by both compare match A and compare match B. TCNT value Counter cleared by TGRB compare match H'FFFF TGRB TGRA Time H'0000 Toggle output TIOCB Toggle output TIOCA Figure 10.11 Example of Toggle Output Operation Page 348 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Input Capture Function: The TCNT value can be transferred to TGR on detection of the TIOC pin input edge. Rising edge, falling edge, or both edges can be selected as the detected edge. For channels 0, 1, 3, and 4, it is also possible to specify another channel's counter input clock or compare match signal as the input capture source. Note: When another channel's counter input clock is used as the input capture input for channels 0 and 3, /1 should not be selected as the counter input clock used for input capture input. Input capture will not be generated if /1 is selected. * Example of input capture operation setting procedure Figure 10.12 shows an example of the input capture operation setting procedure. [1] Designate TGR as an input capture register by means of TIOR, and select rising edge, falling edge, or both edges as the input capture source and input signal edge. Input selection Select input capture input [1] Start count [2] [2] Set the CST bit in TSTR to 1 to start the count operation. <Input capture operation> Figure 10.12 Example of Input Capture Operation Setting Procedure REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 349 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) * Example of input capture operation Figure 10.13 shows an example of input capture operation. In this example both rising and falling edges have been selected as the TIOCA pin input capture input edge, falling edge has been selected as the TIOCB pin input capture input edge, and counter clearing by TGRB input capture has been designated for TCNT. Counter cleared by TIOCB input (falling edge) TCNT value H'0180 H'0160 H'0010 H'0005 Time H'0000 TIOCA TGRA H'0005 H'0160 H'0010 TIOCB TGRB H'0180 Figure 10.13 Example of Input Capture Operation 10.4.3 Synchronous Operation In synchronous operation, the values in a number of TCNT counters can be rewritten simultaneously (synchronous presetting). Also, a number of TCNT counters can be cleared simultaneously by making the appropriate setting in TCR (synchronous clearing). Synchronous operation enables TGR to be incremented with respect to a single time base. Channels 0 to 5 can all be designated for synchronous operation. Page 350 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Example of Synchronous Operation Setting Procedure: Figure 10.14 shows an example of the synchronous operation setting procedure. Synchronous operation selection Set synchronous operation [1] Synchronous presetting Set TCNT Synchronous clearing [2] Clearing sourcegeneration channel? No Yes <Synchronous presetting> Select counter clearing source [3] Set synchronous counter clearing [4] Start count [5] Start count [5] <Counter clearing> <Synchronous clearing> [1] Set to 1 the SYNC bits in TSYR corresponding to the channels to be designated for synchronous operation. [2] When the TCNT counter of any of the channels designated for synchronous operation is written to, the same value is simultaneously written to the other TCNT counters. [3] Use bits CCLR2 to CCLR0 in TCR to specify TCNT clearing by input capture/output compare, etc. [4] Use bits CCLR2 to CCLR0 in TCR to designate synchronous clearing for the counter clearing source. [5] Set to 1 the CST bits in TSTR for the relevant channels, to start the count operation. Figure 10.14 Example of Synchronous Operation Setting Procedure REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 351 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Example of Synchronous Operation: Figure 10.15 shows an example of synchronous operation. In this example, synchronous operation and PWM mode 1 have been designated for channels 0 to 2, TGR0B compare match has been set as the channel 0 counter clearing source, and synchronous clearing has been set for the channel 1 and 2 counter clearing source. Three-phase PWM waveforms are output from pins TIOC0A, TIOC1A, and TIOC2A. At this time, synchronous presetting, and synchronous clearing by TGR0B compare match, is performed for channel 0 to 2 TCNT counters, and the data set in TGR0B is used as the PWM cycle. For details of PWM modes, see section 10.4.6, PWM Modes. Synchronous clearing by TGR0B compare match TCNT0 to TCNT2 values TGR0B TGR1B TGR0A TGR2B TGR1A TGR2A Time H'0000 TIOC0A TIOC1A TIOC2A Figure 10.15 Example of Synchronous Operation Page 352 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 10.4.4 Section 10 16-Bit Timer Pulse Unit (TPU) Buffer Operation Buffer operation, provided for channels 0 and 3, enables TGRC and TGRD to be used as buffer registers. Buffer operation differs depending on whether TGR has been designated as an input capture register or as a compare match register. Table 10.5 shows the register combinations used in buffer operation. Table 10.5 Register Combinations in Buffer Operation Channel Timer General Register Buffer Register 0 TGR0A TGR0C TGR0B TGR0D TGR3A TGR3C TGR3B TGR3D 3 * When TGR is an output compare register When a compare match occurs, the value in the buffer register for the corresponding channel is transferred to the timer general register. This operation is illustrated in figure 10.16. Compare match signal Buffer register Timer general register Comparator TCNT Figure 10.16 Compare Match Buffer Operation REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 353 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) * When TGR is an input capture register When input capture occurs, the value in TCNT is transferred to TGR and the value previously held in the timer general register is transferred to the buffer register. This operation is illustrated in figure 10.17. Input capture signal Timer general register Buffer register TCNT Figure 10.17 Input Capture Buffer Operation Example of Buffer Operation Setting Procedure: Figure 10.18 shows an example of the buffer operation setting procedure. [1] Designate TGR as an input capture register or output compare register by means of TIOR. Buffer operation [1] [2] Designate TGR for buffer operation with bits BFA and BFB in TMDR. Set buffer operation [2] [3] Set the CST bit in TSTR to 1 to start the count operation. Start count [3] Select TGR function <Buffer operation> Figure 10.18 Example of Buffer Operation Setting Procedure Page 354 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Examples of Buffer Operation: * When TGR is an output compare register Figure 10.19 shows an operation example in which PWM mode 1 has been designated for channel 0, and buffer operation has been designated for TGRA and TGRC. The settings used in this example are TCNT clearing by compare match B, 1 output at compare match A, and 0 output at compare match B. As buffer operation has been set, when compare match A occurs the output changes and the value in buffer register TGRC is simultaneously transferred to timer general register TGRA. This operation is repeated each time compare match A occurs. For details of PWM modes, see section 10.4.6, PWM Modes. TCNT value TGR0B H'0520 H'0450 H'0200 TGR0A Time H'0000 TGR0C H'0200 H'0450 H'0520 Transfer TGR0A H'0200 H'0450 TIOCA Figure 10.19 Example of Buffer Operation (1) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 355 of 1126 Section 10 16-Bit Timer Pulse Unit (TPU) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM * When TGR is an input capture register Figure 10.20 shows an operation example in which TGRA has been designated as an input capture register, and buffer operation has been designated for TGRA and TGRC. Counter clearing by TGRA input capture has been set for TCNT, and both rising and falling edges have been selected as the TIOCA pin input capture input edge. As buffer operation has been set, when the TCNT value is stored in TGRA upon occurrence of input capture A, the value previously stored in TGRA is simultaneously transferred to TGRC. TCNT value H'0F07 H'09FB H'0532 H'0000 Time TIOCA TGRA TGRC H'0532 H'0F07 H'09FB H'0532 H'0F07 Figure 10.20 Example of Buffer Operation (2) Page 356 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 10.4.5 Section 10 16-Bit Timer Pulse Unit (TPU) Cascaded Operation In cascaded operation, two 16-bit counters for different channels are used together as a 32-bit counter. This function works by counting the channel 1 (channel 4) counter clock upon overflow/underflow of TCNT2 (TCNT5) as set in bits TPSC2 to TPSC0 in TCR. Underflow occurs only when the lower 16-bit TCNT is in phase-counting mode. Table 10.6 shows the register combinations used in cascaded operation. Note: When phase counting mode is set for channel 1 or 4, the counter clock setting is invalid and the counter operates independently in phase counting mode. Table 10.6 Cascaded Combinations Combination Upper 16 Bits Lower 16 Bits Channels 1 and 2 TCNT1 TCNT2 Channels 4 and 5 TCNT4 TCNT5 Example of Cascaded Operation Setting Procedure: Figure 10.21 shows an example of the setting procedure for cascaded operation. [1] Set bits TPSC2 to TPSC0 in the channel 1 (channel 4) TCR to B'111 to select TCNT2 (TCNT5) overflow/underflow counting. Cascaded operation Set cascading [1] Start count [2] [2] Set the CST bit in TSTR for the upper and lower channel to 1 to start the count operation. <Cascaded operation> Figure 10.21 Cascaded Operation Setting Procedure REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 357 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Examples of Cascaded Operation: Figure 10.22 illustrates the operation when counting upon TCNT2 overflow/underflow has been set for TCNT1, TGR1A and TGR2A have been designated as input capture registers, and TIOC pin rising edge has been selected. When a rising edge is input to the TIOCA1 and TIOCA2 pins simultaneously, the upper 16 bits of the 32-bit data are transferred to TGR1A, and the lower 16 bits to TGR2A. TCNT1 clock TCNT1 H'03A1 H'03A2 TCNT2 clock TCNT2 H'FFFF H'0000 H'0001 TIOCA1, TIOCA2 TGR1A H'03A2 TGR2A H'0000 Figure 10.22 Example of Cascaded Operation (1) Figure 10.23 illustrates the operation when counting upon TCNT2 overflow/underflow has been set for TCNT1, and phase counting mode has been designated for channel 2. TCNT1 is incremented by TCNT2 overflow and decremented by TCNT2 underflow. TCLKA TCLKB TCNT2 TCNT1 FFFD FFFE 0000 FFFF 0000 0001 0002 0001 0000 0001 FFFF 0000 Figure 10.23 Example of Cascaded Operation (2) Page 358 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 10.4.6 Section 10 16-Bit Timer Pulse Unit (TPU) PWM Modes In PWM mode, PWM waveforms are output from the output pins. 0, 1, or toggle output can be selected as the output level in response to compare match of each TGR. Designating TGR compare match as the counter clearing source enables the period to be set in that register. All channels can be designated for PWM mode independently. Synchronous operation is also possible. There are two PWM modes, as described below. * PWM mode 1 PWM output is generated from the TIOCA and TIOCC pins by pairing TGRA with TGRB and TGRC with TGRD. The output specified by bits IOA3 to IOA0 and IOC3 to IOC0 in TIOR is output from the TIOCA and TIOCC pins at compare matches A and C, and the output specified by bits IOB3 to IOB0 and IOD3 to IOD0 in TIOR is output at compare matches B and D. The initial output value is the value set in TGRA or TGRC. If the set values of paired TGRs are identical, the output value does not change when a compare match occurs. In PWM mode 1, a maximum 8-phase PWM output is possible. * PWM mode 2 PWM output is generated using one TGR as the cycle register and the others as duty registers. The output specified in TIOR is performed by means of compare matches. Upon counter clearing by a synchronization register compare match, the output value of each pin is the initial value set in TIOR. If the set values of the cycle and duty registers are identical, the output value does not change when a compare match occurs. In PWM mode 2, a maximum 15-phase PWM output is possible by combined use with synchronous operation. The correspondence between PWM output pins and registers is shown in table 10.7. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 359 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Table 10.7 PWM Output Registers and Output Pins Output Pins Channel Registers PWM Mode 1 PWM Mode 2 0 TGR0A TIOCA0 TIOCA0 TGR0B TGR0C TIOCB0 TIOCC0 TGR0D 1 TGR1A 2 TGR2A TIOCD0 TIOCA1 TIOCA1 TIOCA2 TIOCA2 TGR1B TIOCB1 TGR2B 3 TGR3A TIOCB2 TIOCA3 TGR3B TGR3C TGR4A TIOCC3 TGR5A TGR5B TIOCC3 TIOCD3 TIOCA4 TGR4B 5 TIOCA3 TIOCB3 TGR3D 4 TIOCC0 TIOCA4 TIOCB4 TIOCA5 TIOCA5 TIOCB5 Note: In PWM mode 2, PWM output is not possible for the TGR register in which the period is set. Page 360 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Example of PWM Mode Setting Procedure: Figure 10.24 shows an example of the PWM mode setting procedure. PWM mode Select counter clock [1] [1] Select the counter clock with bits TPSC2 to TPSC0 in TCR. At the same time, select the input clock edge with bits CKEG1 and CKEG0 in TCR. [2] Use bits CCLR2 to CCLR0 in TCR to select the TGR to be used as the TCNT clearing source. Select counter clearing source Select waveform output level Set TGR [2] [3] [4] [3] Use TIOR to designate the TGR as an output compare register, and select the initial value and output value. [4] Set the cycle in the TGR selected in [2], and set the duty in the other the TGR. [5] Select the PWM mode with bits MD3 to MD0 in TMDR. Set PWM mode [5] Start count [6] [6] Set the CST bit in TSTR to 1 to start the count operation. <PWM mode> Figure 10.24 Example of PWM Mode Setting Procedure Examples of PWM Mode Operation: Figure 10.25 shows an example of PWM mode 1 operation. In this example, TGRA compare match is set as the TCNT clearing source, 0 is set for the TGRA initial output value and output value, and 1 is set as the TGRB output value. In this case, the value set in TGRA is used as the period, and the values set in TGRB registers as the duty. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 361 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) TCNT value TGRA Counter cleared by TGRA compare match TGRB H'0000 Time TIOCA Figure 10.25 Example of PWM Mode Operation (1) Figure 10.26 shows an example of PWM mode 2 operation. In this example, synchronous operation is designated for channels 0 and 1, TGR1B compare match is set as the TCNT clearing source, and 0 is set for the initial output value and 1 for the output value of the other TGR registers (TGR0A to TGR0D, TGR1A), to output a 5-phase PWM waveform. In this case, the value set in TGR1B is used as the cycle, and the values set in the other TGRs as the duty. TCNT value Counter cleared by TGR1B compare match TGR1B TGR1A TGR0D TGR0C TGR0B TGR0A H'0000 Time TIOCA0 TIOCB0 TIOCC0 TIOCD0 TIOCA1 Figure 10.26 Example of PWM Mode Operation (2) Page 362 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Figure 10.27 shows examples of PWM waveform output with 0% duty and 100% duty in PWM mode. TCNT value TGRB rewritten TGRA TGRB TGRB rewritten TGRB rewritten H'0000 Time 0% duty TIOCA Output does not change when cycle register and duty register compare matches occur simultaneously TCNT value TGRB rewritten TGRA TGRB rewritten TGRB rewritten TGRB H'0000 Time 100% duty TIOCA Output does not change when cycle register and duty register compare matches occur simultaneously TCNT value TGRB rewritten TGRA TGRB rewritten TGRB TGRB rewritten Time H'0000 100% duty TIOCA 0% duty Figure 10.27 Example of PWM Mode Operation (3) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 363 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) 10.4.7 Phase Counting Mode In phase counting mode, the phase difference between two external clock inputs is detected and TCNT is incremented/decremented accordingly. This mode can be set for channels 1, 2, 4, and 5. When phase counting mode is set, an external clock is selected as the counter input clock and TCNT operates as an up/down-counter regardless of the setting of bits TPSC2 to TPSC0 and bits CKEG1 and CKEG0 in TCR. However, the functions of bits CCLR1 and CCLR0 in TCR, and of TIOR, TIER, and TGR are valid, and input capture/compare match and interrupt functions can be used. When overflow occurs while TCNT is counting up, the TCFV flag in TSR is set; when underflow occurs while TCNT is counting down, the TCFU flag is set. The TCFD bit in TSR is the count direction flag. Reading the TCFD flag provides an indication of whether TCNT is counting up or down. Table 10.8 shows the correspondence between external clock pins and channels. Table 10.8 Phase Counting Mode Clock Input Pins External Clock Pins Channels A-Phase B-Phase When channel 1 or 5 is set to phase counting mode TCLKA TCLKB When channel 2 or 4 is set to phase counting mode TCLKC TCLKD Example of Phase Counting Mode Setting Procedure: Figure 10.28 shows an example of the phase counting mode setting procedure. [1] Select phase counting mode with bits MD3 to MD0 in TMDR. Phase counting mode Select phase counting mode [1] Start count [2] [2] Set the CST bit in TSTR to 1 to start the count operation. <Phase counting mode> Figure 10.28 Example of Phase Counting Mode Setting Procedure Page 364 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Examples of Phase Counting Mode Operation: In phase counting mode, TCNT counts up or down according to the phase difference between two external clocks. There are four modes, according to the count conditions. * Phase counting mode 1 Figure 10.29 shows an example of phase counting mode 1 operation, and table 10.9 summarizes the TCNT up/down-count conditions. TCLKA (channels 1 and 5) TCLKC (channels 2 and 4) TCLKB (channels 1 and 5) TCLKD (channels 2 and 4) TCNT value Up-count Down-count Time Figure 10.29 Example of Phase Counting Mode 1 Operation Table 10.9 Up/Down-Count Conditions in Phase Counting Mode 1 TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) High level Operation Up-count Low level Low level High level High level Down-count Low level High level Low level Legend: : Rising edge : Falling edge REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 365 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) * Phase counting mode 2 Figure 10.30 shows an example of phase counting mode 2 operation, and table 10.10 summarizes the TCNT up/down-count conditions. TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) TCNT value Up-count Down-count Time Figure 10.30 Example of Phase Counting Mode 2 Operation Table 10.10 Up/Down-Count Conditions in Phase Counting Mode 2 TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) Operation High level Don't care Low level Don't care Low level Don't care High level Up-count High level Don't care Low level Don't care High level Don't care Low level Down-count Legend: : Rising edge : Falling edge Page 366 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) * Phase counting mode 3 Figure 10.31 shows an example of phase counting mode 3 operation, and table 10.11 summarizes the TCNT up/down-count conditions. TCLKA (channels 1 and 5) TCLKC (channels 2 and 4) TCLKB (channels 1 and 5) TCLKD (channels 2 and 4) TCNT value Up-count Down-count Time Figure 10.31 Example of Phase Counting Mode 3 Operation Table 10.11 Up/Down-Count Conditions in Phase Counting Mode 3 TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) High level Operation Don't care Low level Don't care Low level Don't care High level Up-count High level Down-count Low level Don't care High level Don't care Low level Don't care Legend: : Rising edge : Falling edge REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 367 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) * Phase counting mode 4 Figure 10.32 shows an example of phase counting mode 4 operation, and table 10.12 summarizes the TCNT up/down-count conditions. TCLKA (channels 1 and 5) TCLKC (channels 2 and 4) TCLKB (channels 1 and 5) TCLKD (channels 2 and 4) TCNT value Up-count Down-count Time Figure 10.32 Example of Phase Counting Mode 4 Operation Table 10.12 Up/Down-Count Conditions in Phase Counting Mode 4 TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) High level Operation Up-count Low level Low level Don't care High level High level Down-count Low level High level Don't care Low level Legend: : Rising edge : Falling edge Page 368 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Phase Counting Mode Application Example: Figure 10.33 shows an example in which phase counting mode is designated for channel 1, and channel 1 is coupled with channel 0 to input servo motor 2-phase encoder pulses in order to detect the position or speed. Channel 1 is set to phase counting mode 1, and the encoder pulse A-phase and B-phase are input to TCLKA and TCLKB. Channel 0 operates with TCNT counter clearing by TGR0C compare match; TGR0A and TGR0C are used for the compare match function, and are set with the speed control period and position control period. TGR0B is used for input capture, with TGR0B and TGR0D operating in buffer mode. The channel 1 counter input clock is designated as the TGR0B input capture source, and detection of the pulse width of 2-phase encoder 4-multiplication pulses is performed. TGR1A and TGR1B for channel 1 are designated for input capture, channel 0 TGR0A and TGR0C compare matches are selected as the input capture source, and store the up/down-counter values for the control periods. This procedure enables accurate position/speed detection to be achieved. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 369 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Channel 1 TCLKA TCLKB Edge detection circuit TCNT1 TGR1A (speed period capture) TGR1B (position period capture) TCNT0 + TGR0A (speed control period) - + TGR0C (position control period) - TGR0B (pulse width capture) TGR0D (buffer operation) Channel 0 Figure 10.33 Phase Counting Mode Application Example Page 370 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 10.5 Interrupts 10.5.1 Interrupt Sources and Priorities Section 10 16-Bit Timer Pulse Unit (TPU) There are three kinds of TPU interrupt source: TGR input capture/compare match, TCNT overflow, and TCNT underflow. Each interrupt source has its own status flag and enable/disabled bit, allowing generation of interrupt request signals to be enabled or disabled individually. When an interrupt request is generated, the corresponding status flag in TSR is set to 1. If the corresponding enable/disable bit in TIER is set to 1 at this time, an interrupt is requested. The interrupt request is cleared by clearing the status flag to 0. Relative channel priorities can be changed by the interrupt controller, but the priority order within a channel is fixed. For details, see section 5, Interrupt Controller. Table 10.13 lists the TPU interrupt sources. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 371 of 1126 Section 10 16-Bit Timer Pulse Unit (TPU) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Table 10.13 TPU Interrupts Channel Interrupt Source Description 0 TGI0A TGI0B 1 2 3 4 5 DTC Activation Priority TGR0A input capture/compare match Possible High TGR0B input capture/compare match Possible TGI0C TGR0C input capture/compare match Possible TGI0D TGR0D input capture/compare match Possible TCI0V TCNT0 overflow Not possible TGI1A TGR1A input capture/compare match Possible TGI1B TGR1B input capture/compare match Possible TCI1V TCNT1 overflow Not possible TCI1U TCNT1 underflow Not possible TGI2A TGR2A input capture/compare match Possible TGI2B TGR2B input capture/compare match Possible TCI2V TCNT2 overflow Not possible TCI2U TCNT2 underflow Not possible TGI3A TGR3A input capture/compare match Possible TGI3B TGR3B input capture/compare match Possible TGI3C TGR3C input capture/compare match Possible TGI3D TGR3D input capture/compare match Possible TCI3V TCNT3 overflow Not possible TGI4A TGR4A input capture/compare match Possible TGI4B TGR4B input capture/compare match Possible TCI4V TCNT4 overflow Not possible TCI4U TCNT4 underflow Not possible TGI5A TGR5A input capture/compare match Possible TGI5B TGR5B input capture/compare match Possible TCI5V TCNT5 overflow Not possible TCI5U TCNT5 underflow Not possible Low Note: This table shows the initial state immediately after a reset. The relative channel priorities can be changed by the interrupt controller. Page 372 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Input Capture/Compare Match Interrupt: An interrupt is requested if the TGIE bit in TIER is set to 1 when the TGF flag in TSR is set to 1 by the occurrence of a TGR input capture/compare match on a particular channel. The interrupt request is cleared by clearing the TGF flag to 0. The TPU has 16 input capture/compare match interrupts, four each for channels 0 and 3, and two each for channels 1, 2, 4, and 5. Overflow Interrupt: An interrupt is requested if the TCIEV bit in TIER is set to 1 when the TCFV flag in TSR is set to 1 by the occurrence of TCNT overflow on a channel. The interrupt request is cleared by clearing the TCFV flag to 0. The TPU has six overflow interrupts, one for each channel. Underflow Interrupt: An interrupt is requested if the TCIEU bit in TIER is set to 1 when the TCFU flag in TSR is set to 1 by the occurrence of TCNT underflow on a channel. The interrupt request is cleared by clearing the TCFU flag to 0. The TPU has four underflow interrupts, one each for channels 1, 2, 4, and 5. 10.5.2 DTC Activation DTC Activation: The DTC can be activated by the TGR input capture/compare match interrupt for a channel. For details, see section 8, Data Transfer Controller (DTC). A total of 16 TPU input capture/compare match interrupts can be used as DTC activation sources, four each for channels 0 and 3, and two each for channels 1, 2, 4, and 5. 10.5.3 A/D Converter Activation The A/D converter can be activated by the TGRA input capture/compare match for a channel. If the TTGE bit in TIER is set to 1 when the TGFA flag in TSR is set to 1 by the occurrence of a TGRA input capture/compare match on a particular channel, a request to start A/D conversion is sent to the A/D converter. If the TPU conversion start trigger has been selected on the A/D converter side at this time, A/D conversion is started. In the TPU, a total of six TGRA input capture/compare match interrupts can be used as A/D converter conversion start sources, one for each channel. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 373 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) 10.6 Operation Timing 10.6.1 Input/Output Timing TCNT Count Timing: Figure 10.34 shows TCNT count timing in internal clock operation, and figure 10.35 shows TCNT count timing in external clock operation. Internal clock Rising edge Falling edge TCNT input clock TCNT N-1 N N+1 N+2 Figure 10.34 Count Timing in Internal Clock Operation External clock Falling edge Rising edge Falling edge TCNT input clock TCNT N-1 N N+1 N+2 Figure 10.35 Count Timing in External Clock Operation Page 374 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Output Compare Output Timing: A compare match signal is generated in the final state in which TCNT and TGR match (the point at which the count value matched by TCNT is updated). When a compare match signal is generated, the output value set in TIOR is output at the output compare output pin. After a match between TCNT and TGR, the compare match signal is not generated until the TCNT input clock is generated. Figure 10.36 shows output compare output timing. TCNT input clock N TCNT N+1 N TGR Compare match signal TIOC pin Figure 10.36 Output Compare Output Timing Input Capture Signal Timing: Figure 10.37 shows input capture signal timing. Input capture input Input capture signal N TCNT N+1 N+2 N TGR N+2 Figure 10.37 Input Capture Input Signal Timing REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 375 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Timing for Counter Clearing by Compare Match/Input Capture: Figure 10.38 shows the timing when counter clearing by compare match occurrence is specified, and figure 10.39 shows the timing when counter clearing by input capture occurrence is specified. Compare match signal Counter clear signal TCNT N TGR N H'0000 Figure 10.38 Counter Clear Timing (Compare Match) Input capture signal Counter clear signal TCNT TGR N H'0000 N Figure 10.39 Counter Clear Timing (Input Capture) Page 376 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Buffer Operation Timing: Figures 10.40 and 10.41 show the timing in buffer operation. n TCNT n+1 Compare match signal TGRA, TGRB n TGRC, TGRD N N Figure 10.40 Buffer Operation Timing (Compare Match) Input capture signal TCNT N TGRA, TGRB n TGRC, TGRD N+1 N N+1 n N Figure 10.41 Buffer Operation Timing (Input Capture) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 377 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) 10.6.2 Interrupt Signal Timing TGF Flag Setting Timing in Case of Compare Match: Figure 10.42 shows the timing for setting of the TGF flag in TSR by compare match occurrence, and TGI interrupt request signal timing. TCNT input clock TCNT N TGR N N+1 Compare match signal TGF flag TGI interrupt Figure 10.42 TGI Interrupt Timing (Compare Match) Page 378 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) TGF Flag Setting Timing in Case of Input Capture: Figure 10.43 shows the timing for setting of the TGF flag in TSR by input capture occurrence, and TGI interrupt request signal timing. Input capture signal N TCNT TGR N TGF flag TGI interrupt Figure 10.43 TGI Interrupt Timing (Input Capture) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 379 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) TCFV Flag/TCFU Flag Setting Timing: Figure 10.44 shows the timing for setting of the TCFV flag in TSR by overflow occurrence, and TCIV interrupt request signal timing. Figure 10.45 shows the timing for setting of the TCFU flag in TSR by underflow occurrence, and TCIU interrupt request signal timing. TCNT input clock TCNT (overflow) H'FFFF H'0000 Overflow signal TCFV flag TCIV interrupt Figure 10.44 TCIV Interrupt Setting Timing TCNT input clock TCNT (underflow) H'0000 H'FFFF Underflow signal TCFU flag TCIU interrupt Figure 10.45 TCIU Interrupt Setting Timing Page 380 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Status Flag Clearing Timing: After a status flag is read as 1 by the CPU, it is cleared by writing 0 to it. When the DTC is activated, the flag is cleared automatically. Figure 10.46 shows the timing for status flag clearing by the CPU, and figure 10.47 shows the timing for status flag clearing by the DTC. TSR write cycle T1 T2 TSR address Address Write signal Status flag Interrupt request signal Figure 10.46 Timing for Status Flag Clearing by CPU DTC read cycle T1 T2 DTC write cycle T1 T2 Source address Address Destination address Status flag Interrupt request signal Figure 10.47 Timing for Status Flag Clearing by DTC Activation REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 381 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) 10.7 Usage Notes Note that the kinds of operation and contention described below occur during TPU operation. Input Clock Restrictions: The input clock pulse width must be at least 1.5 states in the case of single-edge detection, and at least 2.5 states in the case of both-edge detection. The TPU will not operate properly with a narrower pulse width. In phase counting mode, the phase difference and overlap between the two input clocks must be at least 1.5 states, and the pulse width must be at least 2.5 states. Figure 10.48 shows the input clock conditions in phase counting mode. Overlap Phase Phase differdifference Overlap ence Pulse width Pulse width TCLKA (TCLKC) TCLKB (TCLKD) Pulse width Pulse width Notes: Phase difference and overlap : 1.5 states or more : 2.5 states or more Pulse width Figure 10.48 Phase Difference, Overlap, and Pulse Width in Phase Counting Mode Caution on Period Setting: When counter clearing by compare match is set, TCNT is cleared in the final state in which it matches the TGR value (the point at which the count value matched by TCNT is updated). Consequently, the actual counter frequency is given by the following formula: f= (N + 1) Where f : Counter frequency : Operating frequency N : TGR set value Page 382 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Contention between TCNT Write and Clear Operations: If the counter clear signal is generated in the T2 state of a TCNT write cycle, TCNT clearing takes precedence and the TCNT write is not performed. Figure 10.49 shows the timing in this case. TCNT write cycle T1 T2 TCNT address Address Write signal Counter clear signal N TCNT H'0000 Figure 10.49 Contention between TCNT Write and Clear Operations REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 383 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Contention between TCNT Write and Increment Operations: If incrementing occurs in the T2 state of a TCNT write cycle, the TCNT write takes precedence and TCNT is not incremented. Figure 10.50 shows the timing in this case. TCNT write cycle T1 T2 TCNT address Address Write signal TCNT input clock TCNT N M TCNT write data Figure 10.50 Contention between TCNT Write and Increment Operations Page 384 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Contention between TGR Write and Compare Match: If a compare match occurs in the T2 state of a TGR write cycle, the TGR write takes precedence and the compare match signal is inhibited. A compare match does not occur even if the same value as before is written. Figure 10.51 shows the timing in this case. TGR write cycle T1 T2 TGR address Address Write signal Compare match signal Prohibited TCNT N N+1 TGR N M TGR write data Figure 10.51 Contention between TGR Write and Compare Match REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 385 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Contention between Buffer Register Write and Compare Match: If a compare match occurs in the T2 state of a TGR write cycle, the data transferred to TGR by the buffer operation will be the data prior to the write. Figure 10.52 shows the timing in this case. TGR write cycle T1 T2 Buffer register address Address Write signal Compare match signal Buffer register write data Buffer register TGR N M N Figure 10.52 Contention between Buffer Register Write and Compare Match Page 386 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Contention between TGR Read and Input Capture: If the input capture signal is generated in the T1 state of a TGR read cycle, the data that is read will be the data after input capture transfer. Figure 10.53 shows the timing in this case. TGR read cycle T1 T2 TGR address Address Read signal Input capture signal TGR X M M Internal data bus Figure 10.53 Contention between TGR Read and Input Capture REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 387 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Contention between TGR Write and Input Capture: If the input capture signal is generated in the T2 state of a TGR write cycle, the input capture operation takes precedence and the write to TGR is not performed. Figure 10.54 shows the timing in this case. TGR write cycle T1 T2 TGR address Address Write signal Input capture signal TCNT TGR M M Figure 10.54 Contention between TGR Write and Input Capture Page 388 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Contention between Buffer Register Write and Input Capture: If the input capture signal is generated in the T2 state of a buffer write cycle, the buffer operation takes precedence and the write to the buffer register is not performed. Figure 10.55 shows the timing in this case. Buffer register write cycle T1 T2 Buffer register address Address Write signal Input capture signal TCNT TGR Buffer register N M N M Figure 10.55 Contention between Buffer Register Write and Input Capture REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 389 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Contention between Overflow/Underflow and Counter Clearing: If overflow/underflow and counter clearing occur simultaneously, the TCFV/TCFU flag in TSR is not set and TCNT clearing takes precedence. Figure 10.56 shows the operation timing when a TGR compare match is specified as the clearing source, and H'FFFF is set in TGR. TCNT input clock TCNT H'FFFF H'0000 Counter clear signal TGF Prohibited TCFV Figure 10.56 Contention between Overflow and Counter Clearing Page 390 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 10 16-Bit Timer Pulse Unit (TPU) Contention between TCNT Write and Overflow/Underflow: If there is an up-count or downcount in the T2 state of a TCNT write cycle, and overflow/underflow occurs, the TCNT write takes precedence and the TCFV/TCFU flag in TSR is not set. Figure 10.57 shows the operation timing when there is contention between TCNT write and overflow. TCNT write cycle T1 T2 TCNT address Address Write signal TCNT TCNT write data H'FFFF M Prohibited TCFV flag Figure 10.57 Contention between TCNT Write and Overflow Multiplexing of I/O Pins: In the H8S/2646 Group, the TCLKA input pin is multiplexed with the TIOCC0 I/O pin, the TCLKB input pin with the I/O pin, the TCLKC input pin with the TIOCB1 I/O pin, and the TCLKD input pin with the TIOCB2 I/O pin. When an external clock is input, compare match output should not be performed from a multiplexed pin. Interrupts and Module Stop Mode: If module stop mode is entered when an interrupt has been requested, it will not be possible to clear the CPU interrupt source or the DTC activation source. Interrupts should therefore be disabled before entering module stop mode. Interrupt in Subactive Mode/Watch Mode: If subactive mode/watch mode is entered when an interrupt has been requested, it will not be possible to clear the CPU interrupt source. Interrupts should therefore be disabled before entering subactive mode/watch mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 391 of 1126 Section 10 16-Bit Timer Pulse Unit (TPU) Page 392 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) Section 11 Programmable Pulse Generator (PPG) 11.1 Overview The H8S/2646 Group has a built-in programmable pulse generator (PPG) that provides pulse outputs by using the 16-bit timer-pulse unit (TPU) as a time base. The PPG pulse outputs are divided into 4-bit groups (group 3 and group 2) that can operate both simultaneously and independently. 11.1.1 Features PPG features are listed below. * 8-bit output data Maximum 8-bit data can be output, and output can be enabled on a bit-by-bit basis * Two output groups Output trigger signals can be selected in 4-bit groups to provide up to two different 4-bit outputs * Selectable output trigger signals Output trigger signals can be selected for each group from the compare match signals of four TPU channels * Non-overlap mode A non-overlap margin can be provided between pulse outputs * Can operate together with the data transfer controller (DTC) The compare match signals selected as output trigger signals can activate the DTC for sequential output of data without CPU intervention * Settable inverted output Inverted data can be output for each group * Module stop mode can be set As the initial setting, PPG operation is halted. Register access is enabled by exiting module stop mode REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 393 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) 11.1.2 Block Diagram Figure 11.1 shows a block diagram of the PPG. Compare match signals Control logic PO15 PO14 PO13 PO12 PO11 PO10 PO9 PO8 NDERH NDERL PMR PCR Pulse output pins, group 3 PODRH NDRH PODRL NDRL Pulse output pins, group 2 Internal data bus Pulse output pins, group 1 Pulse output pins, group 0 Legend: PMR PCR NDERH NDERL NDRH NDRL PODRH PODRL : PPG output mode register : PPG output control register : Next data enable register H : Next data enable register L : Next data register H : Next data register L : Output data register H : Output data register L Figure 11.1 Block Diagram of PPG Page 394 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 11.1.3 Section 11 Programmable Pulse Generator (PPG) Pin Configuration Table 11.1 summarizes the PPG pins. Table 11.1 PPG Pins Name Symbol I/O Function Group 2 pulse output Pulse output 8 PO8 Output Pulse output 9 PO9 Output Pulse output 10 PO10 Output Pulse output 11 PO11 Output Pulse output 12 PO12 Output Pulse output 13 PO13 Output Pulse output 14 PO14 Output Pulse output 15 PO15 Output REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Group 3 pulse output Page 395 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) 11.1.4 Registers Table 11.2 summarizes the PPG registers. Table 11.2 PPG Registers Name Abbreviation R/W Initial Value 1 Address* PPG output control register PCR R/W H'FF H'FE26 PPG output mode register PMR R/W H'F0 H'FE27 Next data enable register H 4 Next data enable register L* NDERH R/W H'00 H'FE28 NDERL R/W H'00 H'FE29 Output data register H PODRH H'00 H'FE2A Output data register L PODRL 2 R/(W)* 2 R/(W) * H'00 H'FE2B Next data register H NDRH R/W H'00 NDRL R/W H'00 3 H'FE2C* H'FE2E 3 H'FE2D* H'FE2F Port 1 data direction register P1DDR W H'00 H'FE30 Module stop control register A MSTPCRA R/W H'3F H'FDE8 Next data register L* 4 Notes: 1. Lower 16 bits of the address. 2. Bits used for pulse output cannot be written to. 3. When the same output trigger is selected for pulse output groups 2 and 3 by the PCR setting, the NDRH address is H'FE2C. When the output triggers are different, the NDRH address is H'FE2E for group 2 and H'FE2C for group 3. Similarly, when the same output trigger is selected for pulse output groups 0 and 1 by the PCR setting, the NDRL address is H'FE2D. When the output triggers are different, the NDRL address is H'FE2F for group 0 and H'FE2D for group 1. 4. The H8S/2646 Group has no pins corresponding to pulse output groups 0 and 1. Page 396 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) 11.2 Register Descriptions 11.2.1 Next Data Enable Registers H and L (NDERH, NDERL) NDERH Bit : 7 6 5 4 3 2 1 0 NDER15 NDER14 NDER13 NDER12 NDER11 NDER10 NDER9 Initial value : R/W NDER8 0 0 0 0 0 0 0 0 : R/W R/W R/W R/W R/W R/W R/W R/W : 7 6 5 4 3 2 1 0 NDER7 NDER6 NDER5 NDER4 NDER3 NDER2 NDER1 NDER0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W NDERL Bit Initial value : R/W : NDERH and NDERL are 8-bit readable/writable registers that enable or disable pulse output on a bit-by-bit basis. If a bit is enabled for pulse output by NDERH or NDERL, the NDR value is automatically transferred to the corresponding PODR bit when the TPU compare match event specified by PCR occurs, updating the output value. If pulse output is disabled, the bit value is not transferred from NDR to PODR and the output value does not change. NDERH and NDERL are each initialized to H'00 by a reset and in hardware standby mode. They are not initialized in software standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 397 of 1126 Section 11 Programmable Pulse Generator (PPG) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM NDERH Bits 7 to 0--Next Data Enable 15 to 8 (NDER15 to NDER8): These bits enable or disable pulse output on a bit-by-bit basis. Bits 7 to 0 NDER15 to NDER8 Description 0 Pulse outputs PO15 to PO8 are disabled (NDR15 to NDR8 are not transferred to POD15 to POD8) (Initial value) 1 Pulse outputs PO15 to PO8 are enabled (NDR15 to NDR8 are transferred to POD15 to POD8) NDERL Bits 7 to 0--Next Data Enable 7 to 0 (NDER7 to NDER0): These bits enable or disable pulse output on a bit-by-bit basis. Bits 7 to 0 NDER7 to NDER0 Description 0 Pulse outputs PO7 to PO0 are disabled (NDR7 to NDR0 are not transferred to POD7 to POD0) (Initial value) 1 Pulse outputs PO7 to PO0 are enabled (NDR7 to NDR0 are transferred to POD7 to POD0) Page 398 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 11.2.2 Section 11 Programmable Pulse Generator (PPG) Output Data Registers H and L (PODRH, PODRL) PODRH Bit : 7 6 5 4 3 2 1 0 POD15 POD14 POD13 POD12 POD11 POD10 POD9 POD8 0 0 0 0 0 0 0 0 : R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* : 7 6 5 4 3 2 1 0 POD7 POD6 POD5 POD4 POD3 POD2 POD1 POD0 0 0 0 0 0 0 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Initial value : R/W PODRL Bit Initial value : R/W : Note: * A bit that has been set for pulse output by NDER is read-only. PODRH and PODRL are 8-bit readable/writable registers that store output data for use in pulse output. However, the H8S/2646 Group has no pins corresponding to PODRL. 11.2.3 Next Data Registers H and L (NDRH, NDRL) NDRH and NDRL are 8-bit readable/writable registers that store the next data for pulse output. During pulse output, the contents of NDRH and NDRL are transferred to the corresponding bits in PODRH and PODRL when the TPU compare match event specified by PCR occurs. The NDRH and NDRL addresses differ depending on whether pulse output groups have the same output trigger or different output triggers. For details see section 11.2.4, Notes on NDR Access. NDRH and NDRL are each initialized to H'00 by a reset and in hardware standby mode. They are not initialized in software standby mode. 11.2.4 Notes on NDR Access The NDRH and NDRL addresses differ depending on whether pulse output groups have the same output trigger or different output triggers. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 399 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) Same Trigger for Pulse Output Groups: If pulse output groups 2 and 3 are triggered by the same compare match event, the NDRH address is H'FE2C. The upper 4 bits belong to group 3 and the lower 4 bits to group 2. Address H'FE2E consists entirely of reserved bits that cannot be modified and are always read as 1. Address H'FE2C Bit : Initial value : 7 6 5 4 3 2 1 0 NDR15 NDR14 NDR13 NDR12 NDR11 NDR10 NDR9 NDR8 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Initial value : 1 1 1 1 1 1 1 1 R/W -- -- -- -- -- -- -- -- R/W : Address H'FE2E Bit : : If pulse output groups 0 and 1 are triggered by the same compare match event, the NDRL address is H'FE2D. The upper 4 bits belong to group 1 and the lower 4 bits to group 0. Address H'FE2F consists entirely of reserved bits that cannot be modified and are always read as 1. However, the H8S/2646 Group has no output pins corresponding to pulse output groups 0 and 1. Address H'FE2D Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 NDR7 NDR6 NDR5 NDR4 NDR3 NDR2 NDR1 NDR0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Address H'FE2F Bit : Initial value : 1 1 1 1 1 1 1 1 R/W -- -- -- -- -- -- -- -- Page 400 of 1126 : REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) Different Triggers for Pulse Output Groups: If pulse output groups 2 and 3 are triggered by different compare match events, the address of the upper 4 bits in NDRH (group 3) is H'FE2C and the address of the lower 4 bits (group 2) is H'FE2E. Bits 3 to 0 of address H'FE2C and bits 7 to 4 of address H'FE2E are reserved bits that cannot be modified and are always read as 1. Address H'FE2C Bit : 7 6 5 4 3 2 1 0 NDR15 NDR14 NDR13 NDR12 -- -- -- -- 0 0 0 0 1 1 1 1 R/W R/W R/W R/W -- -- -- -- 7 6 5 4 3 2 1 0 -- -- -- -- NDR11 NDR10 NDR9 NDR8 Initial value : 1 1 1 1 0 0 0 0 R/W -- -- -- -- R/W R/W R/W R/W Initial value : R/W : Address H'FE2E Bit : : If pulse output groups 0 and 1 are triggered by different compare match event, the address of the upper 4 bits in NDRL (group 1) is H'FE2D and the address of the lower 4 bits (group 0) is H'FE2F. Bits 3 to 0 of address H'FE2D and bits 7 to 4 of address H'FE2F are reserved bits that cannot be modified and are always read as 1. However, the H8S/2646 Group has no output pins corresponding to pulse output groups 0 and 1. Address H'FE2D Bit : 7 6 5 4 3 2 1 0 NDR7 NDR6 NDR5 NDR4 -- -- -- -- 0 0 0 0 1 1 1 1 R/W R/W R/W R/W -- -- -- -- 7 6 5 4 3 2 1 0 -- -- -- -- NDR3 NDR2 NDR1 NDR0 Initial value : 1 1 1 1 0 0 0 0 R/W -- -- -- -- R/W R/W R/W R/W Initial value : R/W : Address H'FE2F Bit : : REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 401 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) 11.2.5 PPG Output Control Register (PCR) Bit : 7 6 5 4 3 2 1 0 G3CMS1 G3CMS0 G2CMS1 G2CMS0 G1CMS1 G1CMS0 G0CMS1 G0CMS0 Initial value : R/W : 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W PCR is an 8-bit readable/writable register that selects output trigger signals for PPG outputs on a group-by-group basis. PCR is initialized to H'FF by a reset and in hardware standby mode. It is not initialized in software standby mode. Bits 7 and 6--Group 3 Compare Match Select 1 and 0 (G3CMS1, G3CMS0): These bits select the compare match that triggers pulse output group 3 (pins PO15 to PO12). Description Bit 7 G3CMS1 Bit 6 G3CMS0 0 0 Compare match in TPU channel 0 1 Compare match in TPU channel 1 0 Compare match in TPU channel 2 1 Compare match in TPU channel 3 1 Output Trigger for Pulse Output Group 3 (Initial value) Bits 5 and 4--Group 2 Compare Match Select 1 and 0 (G2CMS1, G2CMS0): These bits select the compare match that triggers pulse output group 2 (pins PO11 to PO8). Description Bit 5 G2CMS1 Bit 4 G2CMS0 0 0 Compare match in TPU channel 0 1 Compare match in TPU channel 1 0 Compare match in TPU channel 2 1 Compare match in TPU channel 3 1 Page 402 of 1126 Output Trigger for Pulse Output Group 2 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) Bits 3 and 2--Group 1 Compare Match Select 1 and 0 (G1CMS1, G1CMS0): These bits select the compare match that triggers pulse output group 1 (pins PO7 to PO4). However, the H8S/2646 Group has no output pins corresponding to pulse output group 1. Description Bit 3 G1CMS1 Bit 2 G1CMS0 0 0 Compare match in TPU channel 0 1 Compare match in TPU channel 1 0 Compare match in TPU channel 2 1 Compare match in TPU channel 3 1 Output Trigger for Pulse Output Group 1 (Initial value) Bits 1 and 0--Group 0 Compare Match Select 1 and 0 (G0CMS1, G0CMS0): These bits select the compare match that triggers pulse output group 0 (pins PO3 to PO0). However, the H8S/2646 Group has no output pins corresponding to pulse output group 0. Description Bit 1 G0CMS1 Bit 0 G0CMS0 0 0 1 Compare match in TPU channel 1 1 0 Compare match in TPU channel 2 1 Compare match in TPU channel 3 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Output Trigger for Pulse Output Group 0 Compare match in TPU channel 0 (Initial value) Page 403 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) 11.2.6 PPG Output Mode Register (PMR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 G3INV G2INV G1INV G0INV G3NOV G2NOV G1NOV G0NOV 1 1 1 1 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W PMR is an 8-bit readable/writable register that selects pulse output inversion and non-overlapping operation for each group. The output trigger period of a non-overlapping operation PPG output waveform is set in TGRB and the non-overlap margin is set in TGRA. The output values change at compare match A and B. For details, see section 11.3.4, Non-Overlapping Pulse Output. PMR is initialized to H'F0 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 7--Group 3 Inversion (G3INV): Selects direct output or inverted output for pulse output group 3 (pins PO15 to PO12). Bit 7 G3INV Description 0 Inverted output for pulse output group 3 (low-level output at pin for a 1 in PODRH) 1 Direct output for pulse output group 3 (high-level output at pin for a 1 in PODRH) (Initial value) Bit 6--Group 2 Inversion (G2INV): Selects direct output or inverted output for pulse output group 2 (pins PO11 to PO8). Bit 6 G2INV Description 0 Inverted output for pulse output group 2 (low-level output at pin for a 1 in PODRH) 1 Direct output for pulse output group 2 (high-level output at pin for a 1 in PODRH) (Initial value) Page 404 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) Bit 5--Group 1 Inversion (G1INV): Selects direct output or inverted output for pulse output group 1 (pins PO7 to PO4). However, the H8S/2646 Group has no pins corresponding to pulse output group 1. Bit 5 G1INV Description 0 Inverted output for pulse output group 1 (low-level output at pin for a 1 in PODRL) 1 Direct output for pulse output group 1 (high-level output at pin for a 1 in PODRL) (Initial value) Bit 4--Group 0 Inversion (G0INV): Selects direct output or inverted output for pulse output group 0 (pins PO3 to PO0). However, the H8S/2646 Group has no pins corresponding to pulse output group 0. Bit 4 G0INV Description 0 Inverted output for pulse output group 0 (low-level output at pin for a 1 in PODRL) 1 Direct output for pulse output group 0 (high-level output at pin for a 1 in PODRL) (Initial value) Bit 3--Group 3 Non-Overlap (G3NOV): Selects normal or non-overlapping operation for pulse output group 3 (pins PO15 to PO12). Bit 3 G3NOV Description 0 Normal operation in pulse output group 3 (output values updated at compare match A in the selected TPU channel) (Initial value) 1 Non-overlapping operation in pulse output group 3 (independent 1 and 0 output at compare match A or B in the selected TPU channel) Bit 2--Group 2 Non-Overlap (G2NOV): Selects normal or non-overlapping operation for pulse output group 2 (pins PO11 to PO8). Bit 2 G2NOV Description 0 Normal operation in pulse output group 2 (output values updated at compare match A in the selected TPU channel) (Initial value) 1 Non-overlapping operation in pulse output group 2 (independent 1 and 0 output at compare match A or B in the selected TPU channel) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 405 of 1126 Section 11 Programmable Pulse Generator (PPG) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 1--Group 1 Non-Overlap (G1NOV): Selects normal or non-overlapping operation for pulse output group 1 (pins PO7 to PO4). However, the H8S/2646 Group has no pins corresponding to pulse output group 1. Bit 1 G1NOV Description 0 Normal operation in pulse output group 1 (output values updated at compare match A in the selected TPU channel) (Initial value) 1 Non-overlapping operation in pulse output group 1 (independent 1 and 0 output at compare match A or B in the selected TPU channel) Bit 0--Group 0 Non-Overlap (G0NOV): Selects normal or non-overlapping operation for pulse output group 0 (pins PO3 to PO0). However, the H8S/2646 Group has no pins corresponding to pulse output group 0. Bit 0 G0NOV Description 0 Normal operation in pulse output group 0 (output values updated at compare match A in the selected TPU channel) (Initial value) 1 Non-overlapping operation in pulse output group 0 (independent 1 and 0 output at compare match A or B in the selected TPU channel) Page 406 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 11.2.7 Section 11 Programmable Pulse Generator (PPG) Port 1 Data Direction Register (P1DDR) Bit : 7 6 5 4 3 2 1 0 P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR Initial value : 0 0 0 0 0 0 0 0 R/W W W W W W W W W : P1DDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port 1. Port 1 is multiplexed with pins PO15 to PO8. Bits corresponding to pins used for PPG output must be set to 1. For further information about P1DDR, see section 9.2, Port 1. 11.2.8 Module Stop Control Register A (MSTPCRA) Bit : 7 6 5 4 3 2 1 0 MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value : R/W : 0 0 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W MSTPCRA is a 16-bit readable/writable register that performs module stop mode control. When the MSTPA3 bit in MSTPCRA is set to 1, PPG operation stops at the end of the bus cycle and a transition is made to module stop mode. Registers cannot be read or written to in module stop mode. For details, see section 22.5, Module Stop Mode. MSTPCRA is initialized to H'3F by a reset and in hardware standby mode. It is not initialized by a manual reset and in software standby mode. Bit 3--Module Stop (MSTPA3): Specifies the PPG module stop mode. Bit 3 MSTPA3 Description 0 PPG module stop mode cleared 1 PPG module stop mode set REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 407 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) 11.3 Operation 11.3.1 Overview PPG pulse output is enabled when the corresponding bits in P1DDR and NDER are set to 1. In this state the corresponding PODR contents are output. When the compare match event specified by PCR occurs, the corresponding NDR bit contents are transferred to PODR to update the output values. Figure 11.2 illustrates the PPG output operation and table 11.3 summarizes the PPG operating conditions. DDR NDER Q Output trigger signal C Q PODR D Q NDR D Internal data bus Pulse output pin Normal output/inverted output Figure 11.2 PPG Output Operation Table 11.3 PPG Operating Conditions NDER DDR Pin Function 0 0 Generic input port 1 Generic output port 1 0 Generic input port (but the PODR bit is a read-only bit, and when compare match occurs, the NDR bit value is transferred to the PODR bit) 1 PPG pulse output Sequential output of data of up to 16 bits is possible by writing new output data to NDR before the next compare match. For details of non-overlapping operation, see section 11.3.4, NonOverlapping Pulse Output. Page 408 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 11.3.2 Section 11 Programmable Pulse Generator (PPG) Output Timing If pulse output is enabled, NDR contents are transferred to PODR and output when the specified compare match event occurs. Figure 11.3 shows the timing of these operations for the case of normal output in groups 2 and 3, triggered by compare match A. N TCNT TGRA N+1 N Compare match A signal n NDRH PODRH PO8 to PO15 m n m n Figure 11.3 Timing of Transfer and Output of NDR Contents (Example) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 409 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) 11.3.3 Normal Pulse Output Sample Setup Procedure for Normal Pulse Output: Figure 11.4 shows a sample procedure for setting up normal pulse output. Normal PPG output Select TGR functions [1] Set TGRA value [2] Set counting operation [3] Select interrupt request [4] Set initial output data [5] Enable pulse output [6] Select output trigger [7] [1] Set TIOR to make TGRA an output compare register (with output disabled) [2] Set the PPG output trigger period TPU setup Port and PPG setup TPU setup Set next pulse output data [8] Start counter [9] Compare match? No [3] Select the counter clock source with bits TPSC2 to TPSC0 in TCR. Select the counter clear source with bits CCLR1 and CCLR0. [4] Enable the TGIA interrupt in TIER. The DTC can also be set up to transfer data to NDR. [5] Set the initial output values in PODR. [6] Set the DDR and NDER bits for the pins to be used for pulse output to 1. [7] Select the TPU compare match event to be used as the output trigger in PCR. [8] Set the next pulse output values in NDR. Yes Set next pulse output data [10] [9] Set the CST bit in TSTR to 1 to start the TCNT counter. [10] At each TGIA interrupt, set the next output values in NDR. Figure 11.4 Setup Procedure for Normal Pulse Output (Example) Page 410 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) Example of Normal Pulse Output (Example of Five-Phase Pulse Output): Figure 11.5 shows an example in which pulse output is used for cyclic five-phase pulse output. TCNT value Compare match TCNT TGRA H'0000 Time 80 NDRH PODRH 00 C0 80 40 C0 60 40 20 60 30 20 10 30 18 10 08 18 88 08 80 88 C0 80 40 C0 PO15 PO14 PO13 PO12 PO11 Figure 11.5 Normal Pulse Output Example (Five-Phase Pulse Output) [1] Set up the TPU channel to be used as the output trigger channel so that TGRA is an output compare register and the counter will be cleared by compare match A. Set the trigger period in TGRA and set the TGIEA bit in TIER to 1 to enable the compare match A (TGIA) interrupt. [2] Write H'F8 in P1DDR and NDERH, and set the G3CMS1, G3CMS0, G2CMS1, and G2CMS0 bits in PCR to select compare match in the TPU channel set up in the previous step to be the output trigger. Write output data H'80 in NDRH. [3] The timer counter in the TPU channel starts. When compare match A occurs, the NDRH contents are transferred to PODRH and output. The TGIA interrupt handling routine writes the next output data (H'C0) in NDRH. [4] Five-phase overlapping pulse output (one or two phases active at a time) can be obtained subsequently by writing H'40, H'60, H'20, H'30. H'10, H'18, H'08, H'88... at successive TGIA interrupts. If the DTC is set for activation by this interrupt, pulse output can be obtained without imposing a load on the CPU. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 411 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) 11.3.4 Non-Overlapping Pulse Output Sample Setup Procedure for Non-Overlapping Pulse Output: Figure 11.6 shows a sample procedure for setting up non-overlapping pulse output. [1] Set TIOR to make TGRA and TGRB an output compare registers (with output disabled) Non-overlapping PPG output Select TGR functions [1] Set TGR values [2] Set counting operation [3] Select interrupt request [4] Set initial output data [5] TPU setup PPG setup TPU setup Enable pulse output [6] Select output trigger [7] Set non-overlapping groups [8] Set next pulse output data [9] Start counter [10] Compare match? No [3] Select the counter clock source with bits TPSC2 to TPSC0 in TCR. Select the counter clear source with bits CCLR1 and CCLR0. [4] Enable the TGIA interrupt in TIER. The DTC can also be set up to transfer data to NDR. [5] Set the initial output values in PODR. [6] Set the DDR and NDER bits for the pins to be used for pulse output to 1. [7] Select the TPU compare match event to be used as the pulse output trigger in PCR. [8] In PMR, select the groups that will operate in non-overlap mode. Yes Set next pulse output data [2] Set the pulse output trigger period in TGRB and the non-overlap margin in TGRA. [11] [9] Set the next pulse output values in NDR. [10] Set the CST bit in TSTR to 1 to start the TCNT counter. [11] At each TGIA interrupt, set the next output values in NDR. Figure 11.6 Setup Procedure for Non-Overlapping Pulse Output (Example) Page 412 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) Example of Non-Overlapping Pulse Output (Example of Four-Phase Complementary NonOverlapping Output): Figure 11.7 shows an example in which pulse output is used for fourphase complementary non-overlapping pulse output. TCNT value TGRB TCNT TGRA H'0000 NDRH PODRH Time 95 00 65 95 59 05 65 56 41 59 95 50 56 65 14 95 05 65 Non-overlap margin PO15 PO14 PO13 PO12 PO11 PO10 PO9 PO8 Figure 11.7 Non-Overlapping Pulse Output Example (Four-Phase Complementary) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 413 of 1126 Section 11 Programmable Pulse Generator (PPG) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM [1] Set up the TPU channel to be used as the output trigger channel so that TGRA and TGRB are output compare registers. Set the trigger period in TGRB and the non-overlap margin in TGRA, and set the counter to be cleared by compare match B. Set the TGIEA bit in TIER to 1 to enable the TGIA interrupt. [2] Write H'FF in P1DDR and NDERH, and set the G3CMS1, G3CMS0, G2CMS1, and G2CMS0 bits in PCR to select compare match in the TPU channel set up in the previous step to be the output trigger. Set the G3NOV and G2NOV bits in PMR to 1 to select non-overlapping output. Write output data H'95 in NDRH. [3] The timer counter in the TPU channel starts. When a compare match with TGRB occurs, outputs change from 1 to 0. When a compare match with TGRA occurs, outputs change from 0 to 1 (the change from 0 to 1 is delayed by the value set in TGRA). The TGIA interrupt handling routine writes the next output data (H'65) in NDRH. [4] Four-phase complementary non-overlapping pulse output can be obtained subsequently by writing H'59, H'56, H'95... at successive TGIA interrupts. If the DTC is set for activation by this interrupt, pulse output can be obtained without imposing a load on the CPU. Page 414 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 11.3.5 Section 11 Programmable Pulse Generator (PPG) Inverted Pulse Output If the G3INV, G2INV, G1INV, and G0INV bits in PMR are cleared to 0, values that are the inverse of the PODR contents can be output. Figure 11.8 shows the outputs when G3INV and G2INV are cleared to 0, in addition to the settings of figure 11.7. TCNT value TGRB TCNT TGRA H'0000 NDRH PODRL Time 95 00 65 95 59 05 65 56 41 59 95 50 56 65 14 95 05 65 PO15 PO14 PO13 PO12 PO11 PO10 PO9 PO8 Figure 11.8 Inverted Pulse Output (Example) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 415 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) 11.3.6 Pulse Output Triggered by Input Capture Pulse output can be triggered by TPU input capture as well as by compare match. If TGRA functions as an input capture register in the TPU channel selected by PCR, pulse output will be triggered by the input capture signal. Figure 11.9 shows the timing of this output. TIOC pin Input capture signal NDR N PODR M PO M N N Figure 11.9 Pulse Output Triggered by Input Capture (Example) Page 416 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 11.4 Section 11 Programmable Pulse Generator (PPG) Usage Notes Operation of Pulse Output Pins: Pins PO8 to PO15 are also used for other peripheral functions such as the TPU. When output by another peripheral function is enabled, the corresponding pins cannot be used for pulse output. Note, however, that data transfer from NDR bits to PODR bits takes place, regardless of the usage of the pins. Pin functions should be changed only under conditions in which the output trigger event will not occur. Note on Non-Overlapping Output: During non-overlapping operation, the transfer of NDR bit values to PODR bits takes place as follows. * NDR bits are always transferred to PODR bits at compare match A. * At compare match B, NDR bits are transferred only if their value is 0. Bits are not transferred if their value is 1. Figure 11.10 illustrates the non-overlapping pulse output operation. DDR NDER Q Compare match A Compare match B Pulse output pin C Q PODR D Q NDR D Internal data bus Normal output/inverted output Figure 11.10 Non-Overlapping Pulse Output REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 417 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 11 Programmable Pulse Generator (PPG) Therefore, 0 data can be transferred ahead of 1 data by making compare match B occur before compare match A. The NDR contents should not be altered during the interval from compare match B to compare match A (the non-overlap margin). This can be accomplished by having the TGIA interrupt handling routine write the next data in NDR, or by having the TGIA interrupt activate the DTC. Note, however, that the next data must be written before the next compare match B occurs. Figure 11.11 shows the timing of this operation. Compare match A Compare match B Write to NDR Write to NDR NDR PODR 0 output 0/1 output Write to NDR Do not write here to NDR here 0 output 0/1 output Write to NDR Do not write here to NDR here Figure 11.11 Non-Overlapping Operation and NDR Write Timing Page 418 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 12 Watchdog Timer Section 12 Watchdog Timer 12.1 Overview The H8S/2646 Group has an on-chip watchdog timer with two channels (WDT0, WDT1). The WDT can also generate an internal reset signal for the H8S/2646 Group if a system crash prevents the CPU from writing to the timer counter, allowing it to overflow. When this watchdog function is not needed, the WDT can be used as an interval timer. In interval timer operation, an interval timer interrupt is generated each time the counter overflows. 12.1.1 Features WDT features are listed below. * Switchable between watchdog timer mode and interval timer mode * An internal reset can be issued if the timer counter overflows. In the watchdog timer mode, the WDT can generate an internal reset. * Interrupt generation when in interval timer mode If the counter overflows, the WDT generates an interval timer interrupt. * WDT0 and WDT1 respectively allow eight and sixteen types of counter input clock to be selected The maximum interval of the WDT is given as a system clock cycle x 131072 x 256. A subclock may be selected for the input counter of WDT1. Where a subclock is selected, the maximum interval is given as a subclock cycle x 256 x 256. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 419 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 12 Watchdog Timer 12.1.2 Block Diagram Figures 12.1 (a) and 12.1 (b) show a block diagram of the WDT. Overflow Internal reset signal*1 Clock Clock select Reset control RSTCSR /2*2 /64*2 /128*2 /512*2 /2048*2 /8192*2 /32768*2 /131072*2 Internal clock sources TCNT TSCR Module bus Bus interface Internal bus WOVI0 (interrupt request signal) Interrupt control WDT Legend: : Timer control/status register TCSR : Timer counter TCNT RSTCSR : Reset control/status register Notes: 1. The type of internal reset signal depends on a register setting. 2. In subactive mode and subsleep mode, operates as SUB. Figure 12.1 (a) Block Diagram of WDT0 Page 420 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Internal NMI Interrupt request signal Interrupt control Overflow Clock Clock select Reset control Internal reset signal* TCNT /2 /64 /128 /512 /2048 /8192 /32768 /131072 Internal clock TCSR Module bus Bus interface SUB/2 SUB/4 SUB/8 SUB/16 SUB/32 SUB/64 SUB/128 SUB/256 Internal bus WOVI1 (Interrupt request signal) Section 12 Watchdog Timer WDT Legend: TCSR : Timer control/status register TCNT : Timer counter Note: * An internal reset signal can be generated by setting the register. Figure 12.1 (b) Block Diagram of WDT1 12.1.3 Pin Configuration There are no pins related to the WDT. 12.1.4 Register Configuration The WDT has five registers, as summarized in table 12.1. These registers control clock selection, WDT mode switching, and the reset signal. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 421 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 12 Watchdog Timer Table 12.1 WDT Registers Address* 1 Channel Name 0 2 Read Timer control/status register 0 TCSR0 3 R/(W)* H'18 H'FF74 H'FF74 Timer counter 0 TCNT0 R/W H'00 H'FF74 H'FF75 RSTCSR0 H'FF76 H'FF77 Timer control/status register 1 TCSR1 R/(W) * H'1F 3 R/(W) * H'00 H'FFA2 H'FFA2 Timer counter 1 R/W H'FFA2 H'FFA3 Reset control/status register 1 Initial Value Write* Abbreviation R/W 3 TCNT1 H'00 Notes: 1. Lower 16 bits of the address. 2. For details of write operations, see section 12.2.4, Notes on Register Access. 3. Only a write of 0 is permitted to bit 7, to clear the flag. 12.2 Register Descriptions 12.2.1 Timer Counter (TCNT) Bit : 7 6 5 4 3 2 1 0 Initial value : 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W R/W : TCNT is an 8-bit readable/writable* up-counter. When the TME bit is set to 1 in TCSR, TCNT starts counting pulses generated from the internal clock source selected by bits CKS2 to CKS0 in TCSR. When the count overflows (changes from H'FF to H'00), an internal reset, a NMI interrupt (only WDT1), or an interval timer interrupt (WOVI) is generated, depending on the mode selected by the WT/IT bit in TCSR. TCNT is initialized to H'00 by a reset, in hardware standby mode, or when the TME bit is cleared to 0. It is not initialized in software standby mode. Note: * TCNT is write-protected by a password to prevent accidental overwriting. For details see section 12.2.4, Notes on Register Access. Page 422 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 12.2.2 Section 12 Watchdog Timer Timer Control/Status Register (TCSR) TCSR0 Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 OVF WT/IT TME -- -- CKS2 CKS1 CKS0 0 0 0 1 1 0 0 0 R/(W)* R/W R/W -- -- R/W R/W R/W Note: * Only a 0 may be written to this bit to clear the flag. TCSR1 Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 OVF WT/IT TME PSS RST/NMI CKS2 CKS1 CKS0 0 0 0 0 0 0 0 0 R/(W)* R/W R/W R/W R/W R/W R/W R/W Note: * Only a 0 may be written to this bit to clear the flag. TCSR is an 8-bit readable/writable* register. Its functions include selecting the clock source to be input to TCNT, and the timer mode. TCSR0 (TCSR1) is initialized to H'18 (H'00) by a reset and in hardware standby mode. It is not initialized in software standby mode. Note: * TCSR is write-protected by a password to prevent accidental overwriting. For details see section 12.2.4, Notes on Register Access. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 423 of 1126 Section 12 Watchdog Timer H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 7--Overflow Flag (OVF): Indicates that TCNT has overflowed from H'FF to H'00. Bit 7 OVF Description 0 [Clearing conditions] 1 (Initial value) * Cleared when 0 is written to the TME bit (Only applies to WDT1) * Cleared by reading TCSR when OVF = 1, then writing 0 to OVF [Setting condition] When TCNT overflows (changes from H'FF to H'00) When internal reset request generation is selected in watchdog timer mode, OVF is cleared automatically by the internal reset. In interval timer mode, the OVF flag can be cleared in the interval timer interrupt service routine by reading TCSR while OVF = 1, then writing 0 to OVF, in accordance with the OVF flag clearing conditions. However, if conflict occurs between the OVF flag setting timing and OVF flag read timing when interval timer interrupts are disabled and the OVF flag is polled, it has been found that in some cases the read of OVF = 1 is not recognized. In this case, the OVF flag clearing conditions can be reliably met by reading the OVF = 1 state two or more times. In the above example, therefore, the OVF = 1 state should be read at least twice before clearing the OVF flag. Bit 6--Timer Mode Select (WT/IT): Selects whether the WDT is used as a watchdog timer or interval timer. When TCNT overflows, WDT0 issues an internal reset if bit RSTE of the reset control/status register (RSTCSR) is set to 1. In the interval timer mode, WDT0 sends a WOVI interrupt request to the CPU. WDT1, on the other hand, requests a reset or an NMI interrupt from the CPU if the watchdog timer mode is chosen, whereas it requests a WOVI interrupt from the CPU if the interval timer mode is chosen. * WDT0 Mode Select TCSR0 WT/IT 0 1 Description Interval timer mode: WDT0 requests an interval timer interrupt (WOVI) from the CPU when the TCNT overflows. (Initial value) Watchdog timer mode: A reset is issued when the TCNT overflows if the RSTE bit of RSTCSR is set to 1.* Note: * For details see section 12.2.3, Reset Control/Status Register (RSTCSR). Page 424 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 12 Watchdog Timer * WDT1 Mode Select TCSR1 WT/IT 0 1 Description Interval timer mode: WDT1 requests an interval timer interrupt (WOVI) from the CPU when the TCNT overflows. (Initial value) Watchdog timer mode: WDT1 requests a reset or an NMI interrupt from the CPU when the TCNT overflows. Bit 5--Timer Enable (TME): Selects whether TCNT runs or is halted. Bit 5 TME Description 0 TCNT is initialized to H'00 and halted 1 TCNT counts (Initial value) WDT0 TCSR Bit 4--Reserved Bit: It is always read as 1 and cannot be modified. WDT1 TCSR Bit 4--Prescaler Select (PSS): This bit is used to select an input clock source for the TCNT of WDT1. See the descriptions of Clock Select 2 to 0 for details. Bit 4 PSS Description 0 The TCNT counts frequency-division clock pulses of the based prescaler (PSM). 1 The TCNT counts frequency-division clock pulses of the SUB-based prescaler (PSS). REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 425 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 12 Watchdog Timer WDT0 TCSR Bit 3--Reserved Bit: It is always read as 1 and cannot be modified. WDT1 TCSR Bit 3--Reset or NMI (RST/NMI): This bit is used to choose between an internal reset request and an NMI request when the TCNT overflows during the watchdog timer mode. Bit 3 RTS/NMI Description 0 NMI request. 1 Internal reset request. (Initial value) Bits 2 to 0--Clock Select 2 to 0 (CKS2 to CKS0): These bits select one of eight internal clock sources, obtained by dividing the system clock () or subclock ( SUB), for input to TCNT. * WDT0 Input Clock Select Description Bit 2 CKS2 Bit 1 CKS1 Bit 0 CKS0 Clock Overflow Period* (where = 20 MHz) 0 0 0 /2 (initial value) 25.6 s 1 /64 819.2 s 0 /128 1.6 ms 1 /512 6.6 ms 0 /2048 26.2 ms 1 /8192 104.9 ms 0 /32768 419.4 ms 1 /131072 1.68 s 1 1 0 1 Note: * An overflow period is the time interval between the start of counting up from H'00 on the TCNT and the occurrence of a TCNT overflow. Page 426 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 12 Watchdog Timer * WDT1 Input Clock Select Description Bit 4 PSS Bit 2 CKS2 Bit 1 CKS1 Bit 0 CKS0 Clock Overflow Period* (where = 20 MHz) (where SUB = 32.768 kHz) 0 0 0 0 /2 (initial value) 25.6 s 1 /64 819.2 s 1 0 /128 1.6 ms 1 /512 6.6 ms 0 /2048 26.2 ms 1 /8192 104.9 ms 0 /32768 419.4 ms 1 /131072 1.68 s 0 SUB/2 15.6 ms 1 SUB/4 31.3 ms 0 SUB/8 62.5 ms 1 SUB/16 125 ms 0 SUB/32 250 ms 1 SUB/64 500 ms 0 SUB/128 1s 1 SUB/256 2s 1 0 1 1 0 0 1 1 0 1 Note: * An overflow period is the time interval between the start of counting up from H'00 on the TCNT and the occurrence of a TCNT overflow. 12.2.3 Reset Control/Status Register (RSTCSR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 WOVF RSTE -- -- -- -- -- -- 0 0 0 1 1 1 1 1 R/(W)* R/W R/W -- -- -- -- -- Note: * Can only be written with 0 for flag clearing. RSTCSR is an 8-bit readable/writable* register that controls the generation of the internal reset signal when TCNT overflows, and selects the type of internal reset signal. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 427 of 1126 Section 12 Watchdog Timer H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM RSTCSR is initialized to H'1F by a reset signal from the RES pin, but not by the WDT internal reset signal caused by overflows. Note: * RSTCSR is write-protected by a password to prevent accidental overwriting. For details see section 12.2.4, Notes on Register Access. Bit 7--Watchdog Overflow Flag (WOVF): Indicates that TCNT has overflowed (changed from H'FF to H'00) during watchdog timer operation. This bit is not set in interval timer mode. Bit 7 WOVF Description 0 [Clearing condition] 1 [Setting condition] (Initial value) Cleared by reading TCSR when WOVF = 1, then writing 0 to WOVF Set when TCNT overflows (changed from H'FF to H'00) during watchdog timer operation Bit 6--Reset Enable (RSTE): Specifies whether or not a reset signal is generated in the H8S/2646 Group if TCNT overflows during watchdog timer operation. Bit 6 RSTE Description 0 Reset signal is not generated if TCNT overflows* 1 Reset signal is generated if TCNT overflows (Initial value) Note: * The modules within the H8S/2646 Group are not reset, but TCNT and TCSR within the WDT are reset. Bit 5--Reserved: Always read as 0. Can only be written with 0. Bits 4 to 0--Reserved: Always read as 1. Not writable. Page 428 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 12.2.4 Section 12 Watchdog Timer Notes on Register Access The watchdog timer's TCNT, TCSR, and RSTCSR registers differ from other registers in being more difficult to write to. The procedures for writing to and reading these registers are given below. Writing to TCNT and TCSR: These registers must be written to by a word transfer instruction. They cannot be written to with byte instructions. Figure 12.2 shows the format of data written to TCNT and TCSR. TCNT and TCSR both have the same write address. For a write to TCNT, the upper byte of the written word must contain H'5A and the lower byte must contain the write data. For a write to TCSR, the upper byte of the written word must contain H'A5 and the lower byte must contain the write data. This transfers the write data from the lower byte to TCNT or TCSR. TCNT write 15 8 7 H'5A Address: H'FF74 0 Write data TCSR write 15 Address: H'FF74 8 7 H'A5 0 Write data Figure 12.2 Format of Data Written to TCNT and TCSR (WDT0) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 429 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 12 Watchdog Timer Writing to RSTCSR: RSTCSR must be written to by word transfer instruction to address H'FF76. It cannot be written to with byte instructions. Figure 12.3 shows the format of data written to RSTCSR. The method of writing 0 to the WOVF bit differs from that for writing to the RSTE bits. To write 0 to the WOVF bit, the write data must have H'A5 in the upper byte and H'00 in the lower byte. This clears the WOVF bit to 0, but has no effect on the RSTE bits. To write to the RSTE bit, the upper byte must contain H'5A and the lower byte must contain the write data. This writes the values in bit 6 of the lower byte into the RSTE bit, but has no effect on the WOVF bit. Writing 0 to WOVF bit 15 8 7 H'A5 Address: H'FF76 0 H'00 Writing to RSTE bit 15 Address: H'FF76 8 7 H'5A 0 Write data Figure 12.3 Format of Data Written to RSTCSR (WDT0) Reading TCNT, TCSR, and RSTCSR: These registers are read in the same way as other registers. The read addresses are H'FF74 for TCSR, H'FF75 for TCNT, and H'FF77 for RSTCSR. Page 430 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 12 Watchdog Timer 12.3 Operation 12.3.1 Watchdog Timer Operation To use the WDT as a watchdog timer, set the WT/IT bit in TCSR and the TME bit to 1. Software must prevent TCNT overflows by rewriting the TCNT value (normally by writing H'00) before overflow occurs. This ensures that TCNT does not overflow while the system is operating normally. If TCNT overflows without being rewritten because of a system malfunction or other error, an internal reset is issued, in the case of WDT0, if the RSTE bit in RSTCSR is set to 1. This is illustrated in figure 12.4 (a). The internal reset signal is output for 518 states. If a reset caused by a signal input to the RES pin occurs at the same time as a reset caused by a WDT overflow, the RES pin reset has priority and the WOVF bit in RSTCSR is cleared to 0. In the case of WDT1, the chip is reset, or an NMI interrupt request is generated, for 516 system clock periods (516) (515 or 516 clock periods when the clock source is SUB (PSS = 1)). This is illustrated in figure 12.4 (b). An NMI request from the watchdog timer and an interrupt request from the NMI pin are both treated as having the same vector. So, avoid handling an NMI request from the watchdog timer and an interrupt request from the NMI pin at the same time. TCNT value Overflow H'FF Time H'00 WT/IT=1 TME=1 Write H'00' to TCNT WOVF=1 WT/IT=1 TME=1 Write H'00' to TCNT internal reset is generated Internal reset signal* 518 states Legend: WT/IT : Timer mode select bit TME : Timer enable bit Note: * The internal reset signal is generated only if the RSTE bit is set to 1. Figure 12.4 (a) WDT0 Watchdog Timer Operation REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 431 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 12 Watchdog Timer TCNT value Overflow H'FF Time H'00 WT/IT= 1 TME= 1 Write H'00' to TCNT WOVF= 1* WT/IT= 1 Write H'00' TME= 1 to TCNT internal reset is generated Internal reset signal 515/516 states Legend: WT/IT : Timer mode select bit TME : Timer enable bit Note: * The WOVF bit is set to 1 and then cleared to 0 by an internal reset. Figure 12.4 (b) WDT1 Watchdog Timer Operation 12.3.2 Interval Timer Operation To use the WDT as an interval timer, clear the WT/IT bit in TCSR to 0 and set the TME bit to 1. An interval timer interrupt (WOVI) is generated each time TCNT overflows, provided that the WDT is operating as an interval timer, as shown in figure 12.5. This function can be used to generate interrupt requests at regular intervals. Page 432 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 12 Watchdog Timer TCNT value Overflow H'FF Overflow Overflow Overflow Time H'00 WT/IT=0 TME=1 WOVI WOVI WOVI WOVI Legend: WOVI: Interval timer interrupt request generation Figure 12.5 Interval Timer Operation 12.3.3 Timing of Setting Overflow Flag (OVF) The OVF flag is set to 1 if TCNT overflows during interval timer operation. At the same time, an interval timer interrupt (WOVI) is requested. This timing is shown in figure 12.6. With WDT1, the OVF bit of the TCSR is set to 1 and a simultaneous NMI interrupt is requested when the TCNT overflows if the NMI request has been chosen in the watchdog timer mode. TCNT H'FF H'00 Overflow signal (internal signal) OVF Figure 12.6 Timing of Setting of OVF REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 433 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 12 Watchdog Timer 12.3.4 Timing of Setting of Watchdog Timer Overflow Flag (WOVF) In the WDT0, the WOVF flag is set to 1 if TCNT overflows during watchdog timer operation. If TCNT overflows while the RSTE bit in RSTCSR is set to 1, an internal reset signal is generated for the entire H8S/2646 Group chip. Figure 12.7 shows the timing in this case. TCNT H'FF H'00 Overflow signal (internal signal) WOVF Internal reset signal 518 states (WDT0) 515/516 states (WDT1) Figure 12.7 Timing of Setting of WOVF Page 434 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 12.4 Section 12 Watchdog Timer Interrupts During interval timer mode operation, an overflow generates an interval timer interrupt (WOVI). The interval timer interrupt is requested whenever the OVF flag is set to 1 in TCSR. OVF must be cleared to 0 in the interrupt handling routine. If an NMI request has been chosen in the watchdog timer mode, an NMI request is generated when a TCNT overflow occurs. 12.5 Usage Notes 12.5.1 Contention between Timer Counter (TCNT) Write and Increment If a timer counter clock pulse is generated during the T2 state of a TCNT write cycle, the write takes priority and the timer counter is not incremented. Figure 12.8 shows this operation. TCNT write cycle T1 T2 Address Internal write signal TCNT input clock TCNT N M Counter write data Figure 12.8 Contention between TCNT Write and Increment REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 435 of 1126 Section 12 Watchdog Timer 12.5.2 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Changing Value of PSS and CKS2 to CKS0 If bits PSS and CKS2 to CKS0 in TCSR are written to while the WDT is operating, errors could occur in the incrementation. Software must stop the watchdog timer (by clearing the TME bit to 0) before changing the value of bits PSS and CKS2 to CKS0. 12.5.3 Switching between Watchdog Timer Mode and Interval Timer Mode If the mode is switched from watchdog timer to interval timer, or vice versa, while the WDT is operating, errors could occur in the incrementation. Software must stop the watchdog timer (by clearing the TME bit to 0) before switching the mode. 12.5.4 Internal Reset in Watchdog Timer Mode In watchdog timer mode, the H8S/2646 Group will not be reset internally if TCNT overflows while the RSTE bit is cleared to 0. When this module is used as a watchdog timer, the RSTE bit must be set to 1 beforehand. 12.5.5 OVF Flag Clearing in Interval Timer Mode When the OVF flag setting conflicts with the OVF flag reading in interval timer mode, writing 0 to the OVF bit may not clear the flag even though the OVF bit has been read while it is 1. If there is a possibility that the OVF flag setting and reading will conflict, such as when the OVF flag is polled with the interval timer interrupt disabled, read the OVF bit while it is 1 at least twice before writing 0 to the OVF bit to clear the flag. Page 436 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Section 13 Serial Communication Interface (SCI) 13.1 Overview The H8S/2646 Group is equipped with 2 or 3 independent serial communication interface (SCI) channels*. The SCI can handle both asynchronous and clocked synchronous serial communication. A function is also provided for serial communication between processors (multiprocessor communication function). Note: * Two channels in the H8S/2646, H8S/2646R, and H8S/2645; three channels in the H8S/2648, H8S/2648R, and H8S/2647. 13.1.1 Features SCI features are listed below. * Choice of asynchronous or clocked synchronous serial communication mode Asynchronous mode Serial data communication executed using asynchronous system in which synchronization is achieved character by character Serial data communication can be carried out with standard asynchronous communication chips such as a Universal Asynchronous Receiver/Transmitter (UART) or Asynchronous Communication Interface Adapter (ACIA) A multiprocessor communication function is provided that enables serial data communication with a number of processors Choice of 12 serial data transfer formats Data length : 7 or 8 bits Stop bit length : 1 or 2 bits Parity : Even, odd, or none Multiprocessor bit : 1 or 0 Receive error detection : Parity, overrun, and framing errors Break detection : Break can be detected by reading the RxD pin level directly in case of a framing error Clocked Synchronous mode Serial data communication synchronized with a clock Serial data communication can be carried out with other chips that have a synchronous communication function REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 437 of 1126 Section 13 Serial Communication Interface (SCI) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM One serial data transfer format Data length : 8 bits Receive error detection : Overrun errors detected * Full-duplex communication capability The transmitter and receiver are mutually independent, enabling transmission and reception to be executed simultaneously Double-buffering is used in both the transmitter and the receiver, enabling continuous transmission and continuous reception of serial data * Choice of LSB-first or MSB-first transfer Can be selected regardless of the communication mode* (except in the case of asynchronous mode 7-bit data) Note: * Descriptions in this section refer to LSB-first transfer. * On-chip baud rate generator allows any bit rate to be selected * Choice of serial clock source: internal clock from baud rate generator or external clock from SCK pin * Four interrupt sources Four interrupt sources -- transmit-data-empty, transmit-end, receive-data-full, and receive error -- that can issue requests independently The transmit-data-empty interrupt and receive data full interrupts can activate the data transfer controller (DTC) to execute data transfer * Module stop mode can be set As the initial setting, SCI operation is halted. Register access is enabled by exiting module stop mode. Page 438 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 13.1.2 Section 13 Serial Communication Interface (SCI) Block Diagram Bus interface Figure 13.1 shows a block diagram of the SCI. Module data bus RDR RxD RSR TxD TDR SCMR SSR SCR SMR TSR BRR Baud rate generator Transmission/ reception control Parity generation Parity check SCK Internal data bus /4 /16 /64 Clock External clock Legend: RSR : Receive shift register RDR : Receive data register TSR : Transmit shift register TDR : Transmit data register SMR : Serial mode register SCR : Serial control register SSR : Serial status register SCMR : Smart card mode register BRR : Bit rate register TEI TXI RXI ERI Figure 13.1 Block Diagram of SCI REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 439 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) 13.1.3 Pin Configuration Table 13.1 shows the serial pins for each SCI channel. Table 13.1 SCI Pins Channel Pin Name 0 Serial clock pin 0 SCK0 I/O SCI0 clock input/output Receive data pin 0 RxD0 Input SCI0 receive data input Transmit data pin 0 TxD0 Output SCI0 transmit data output Serial clock pin 1 SCK1 I/O SCI1 clock input/output Receive data pin 1 RxD1 Input SCI1 receive data input Transmit data pin 1 TxD1 Output SCI1 transmit data output Serial clock pin 2 SCK2 I/O SCI2 clock input/output Receive data pin 2 RxD2 Input SCI2 receive data input Transmit data pin 2 TxD2 Output SCI2 transmit data output 1 2* Symbol I/O Function Notes: Pin names SCK, RxD, and TxD are used in the text for all channels, omitting the channel designation. * H8S/2648, H8S/2648R, and H8S/2647 only. Page 440 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 13.1.4 Section 13 Serial Communication Interface (SCI) Register Configuration The SCI has the internal registers shown in table 13.2. These registers are used to specify asynchronous mode or clocked synchronous mode, the data format , and the bit rate, and to control transmitter/receiver. Table 13.2 SCI Registers Channel Name Abbreviation R/W Initial Value Address* 0 Serial mode register 0 SMR0 R/W H'00 H'FF78 Bit rate register 0 BRR0 R/W H'FF H'FF79 1 Serial control register 0 SCR0 R/W H'00 H'FF7A Transmit data register 0 TDR0 R/W H'FF H'FF7B Serial status register 0 SSR0 R/(W)* H'84 H'FF7C Receive data register 0 RDR0 R H'00 H'FF7D Smart card mode register 0 SCMR0 R/W H'F2 H'FF7E Serial mode register 1 SMR1 R/W H'00 H'FF80 Bit rate register 1 BRR1 R/W H'FF H'FF81 Serial control register 1 SCR1 R/W H'00 H'FF82 Transmit data register 1 TDR1 R/W H'FF83 Serial status register 1 SSR1 H'FF 2 * R/(W) H'84 H'FF84 Receive data register 1 RDR1 R H'00 H'FF85 Smart card mode register 1 SCMR1 R/W H'F2 H'FF86 SMR2 R/W H'00 H'FF88 BRR2 R/W H'FF H'FF89 SCR2 R/W H'00 H'FF8A TDR2 R/W H'FF8B H'FF8C 2 Serial mode register 2 (H8S/2648, Bit rate register 2 H8S/2648R, H8S/2647) Serial control register 2 Transmit data register 2 All 1 2 Serial status register 2 SSR2 H'FF 2 * R/(W) H'84 Receive data register 2 RDR2 R H'00 H'FF8D Smart card mode register 2 SCMR2 R/W H'F2 H'FF8E Module stop control register B MSTPCRB R/W H'FF H'FDE9 Notes: 1. Lower 16 bits of the address. 2. Can only be written with 0 for flag clearing. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 441 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) 13.2 Register Descriptions 13.2.1 Receive Shift Register (RSR) Bit : 7 6 5 4 3 2 1 0 R/W : -- -- -- -- -- -- -- -- RSR is a register used to receive serial data. The SCI sets serial data input from the RxD pin in RSR in the order received, starting with the LSB (bit 0), and converts it to parallel data. When one byte of data has been received, it is transferred to RDR automatically. RSR cannot be directly read or written to by the CPU. 13.2.2 Bit Receive Data Register (RDR) : 7 6 5 4 3 2 1 0 Initial value : 0 0 0 0 0 0 0 0 R/W R R R R R R R R : RDR is a register that stores received serial data. When the SCI has received one byte of serial data, it transfers the received serial data from RSR to RDR where it is stored, and completes the receive operation. After this, RSR is receive-enabled. Since RSR and RDR function as a double buffer in this way, enables continuous receive operations to be performed. RDR is a read-only register, and cannot be written to by the CPU. RDR is initialized to H'00 by a reset, in standby mode, watch mode, subactive mode, and subsleep mode, or module stop mode. Page 442 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 13.2.3 Section 13 Serial Communication Interface (SCI) Transmit Shift Register (TSR) Bit : 7 6 5 4 3 2 1 0 R/W : -- -- -- -- -- -- -- -- TSR is a register used to transmit serial data. To perform serial data transmission, the SCI first transfers transmit data from TDR to TSR, then sends the data to the TxD pin starting with the LSB (bit 0). When transmission of one byte is completed, the next transmit data is transferred from TDR to TSR, and transmission started, automatically. However, data transfer from TDR to TSR is not performed if the TDRE bit in SSR is set to 1. TSR cannot be directly read or written to by the CPU. 13.2.4 Transmit Data Register (TDR) Bit : 7 6 5 4 3 2 1 0 Initial value : 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W R/W : TDR is an 8-bit register that stores data for serial transmission. When the SCI detects that TSR is empty, it transfers the transmit data written in TDR to TSR and starts serial transmission. Continuous serial transmission can be carried out by writing the next transmit data to TDR during serial transmission of the data in TSR. TDR can be read or written to by the CPU at all times. TDR is initialized to H'FF by a reset, in standby mode, watch mode, subactive mode, and subsleep mode, or module stop mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 443 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) 13.2.5 Serial Mode Register (SMR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 C/A CHR PE O/E STOP MP CKS1 CKS0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W SMR is an 8-bit register used to set the SCI's serial transfer format and select the baud rate generator clock source. SMR can be read or written to by the CPU at all times. SMR is initialized to H'00 by a reset and in hardware standby mode. Bit 7--Communication Mode (C/A): Selects asynchronous mode or clocked synchronous mode as the SCI operating mode. Bit 7 C/A Description 0 Asynchronous mode 1 Clocked synchronous mode (Initial value) Bit 6--Character Length (CHR): Selects 7 or 8 bits as the data length in asynchronous mode. In clocked synchronous mode, a fixed data length of 8 bits is used regardless of the CHR setting. Bit 6 CHR 0 1 Description 8-bit data 7-bit data* (Initial value) Note: * When 7-bit data is selected, the MSB (bit 7) of TDR is not transmitted, and it is not possible to choose between LSB-first or MSB-first transfer. Page 444 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Bit 5--Parity Enable (PE): In asynchronous mode, selects whether or not parity bit addition is performed in transmission, and parity bit checking in reception. In clocked synchronous mode with a multiprocessor format, parity bit addition and checking is not performed, regardless of the PE bit setting. Bit 5 PE Description 0 Parity bit addition and checking disabled 1 Parity bit addition and checking enabled* (Initial value) Note: * When the PE bit is set to 1, the parity (even or odd) specified by the O/E bit is added to transmit data before transmission. In reception, the parity bit is checked for the parity (even or odd) specified by the O/E bit. Bit 4--Parity Mode (O/E): Selects either even or odd parity for use in parity addition and checking. The O/E bit setting is only valid when the PE bit is set to 1, enabling parity bit addition and checking, in asynchronous mode. The O/E bit setting is invalid in clocked synchronous mode, when parity addition and checking is disabled in asynchronous mode, and when a multiprocessor format is used. Bit 4 O/E 0 1 Description Even parity* 2 Odd parity* 1 (Initial value) Notes: 1. When even parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is even. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is even. 2. When odd parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is odd. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is odd. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 445 of 1126 Section 13 Serial Communication Interface (SCI) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 3--Stop Bit Length (STOP): Selects 1 or 2 bits as the stop bit length in asynchronous mode. The STOP bits setting is only valid in asynchronous mode. If clocked synchronous mode is set the STOP bit setting is invalid since stop bits are not added. Bit 3 STOP 0 1 Description 1 stop bit: In transmission, a single 1 bit (stop bit) is added to the end of a transmit character before it is sent. (Initial value) 2 stop bits: In transmission, two 1 bits (stop bits) are added to the end of a transmit character before it is sent. In reception, only the first stop bit is checked, regardless of the STOP bit setting. If the second stop bit is 1, it is treated as a stop bit; if it is 0, it is treated as the start bit of the next transmit character. Bit 2--Multiprocessor Mode (MP): Selects multiprocessor format. When multiprocessor format is selected, the PE bit and O/E bit parity settings are invalid. The MP bit setting is only valid in asynchronous mode; it is invalid in clocked synchronous mode. For details of the multiprocessor communication function, see section 13.3.3, Multiprocessor Communication Function. Bit 2 MP Description 0 Multiprocessor function disabled 1 Multiprocessor format selected Page 446 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Bits 1 and 0--Clock Select 1 and 0 (CKS1, CKS0): These bits select the clock source for the baud rate generator. The clock source can be selected from , /4, /16, and /64, according to the setting of bits CKS1 and CKS0. For the relation between the clock source, the bit rate register setting, and the baud rate, see section 13.2.8, Bit Rate Register (BRR). Bit 1 CKS1 Bit 0 CKS0 Description 0 0 clock 1 /4 clock 0 /16 clock 1 /64 clock 1 13.2.6 (Initial value) Serial Control Register (SCR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 TIE RIE TE RE MPIE TEIE CKE1 CKE0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W SCR is a register that performs enabling or disabling of SCI transfer operations, serial clock output in asynchronous mode, and interrupt requests, and selection of the serial clock source. SCR can be read or written to by the CPU at all times. SCR is initialized to H'00 by a reset and in standby mode. Bit 7--Transmit Interrupt Enable (TIE): Enables or disables transmit data empty interrupt (TXI) request generation when serial transmit data is transferred from TDR to TSR and the TDRE flag in SSR is set to 1. Bit 7 TIE Description 0 Transmit data empty interrupt (TXI) requests disabled* 1 Transmit data empty interrupt (TXI) requests enabled (Initial value) Note: * TXI interrupt request cancellation can be performed by reading 1 from the TDRE flag, then clearing it to 0, or clearing the TIE bit to 0. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 447 of 1126 Section 13 Serial Communication Interface (SCI) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 6--Receive Interrupt Enable (RIE): Enables or disables receive data full interrupt (RXI) request and receive error interrupt (ERI) request generation when serial receive data is transferred from RSR to RDR and the RDRF flag in SSR is set to 1. Bit 6 RIE Description 0 Receive data full interrupt (RXI) request and receive error interrupt (ERI) request disabled* (Initial value) 1 Receive data full interrupt (RXI) request and receive error interrupt (ERI) request enabled Note: * RXI and ERI interrupt request cancellation can be performed by reading 1 from the RDRF flag, or the FER, PER, or ORER flag, then clearing the flag to 0, or clearing the RIE bit to 0. Bit 5--Transmit Enable (TE): Enables or disables the start of serial transmission by the SCI. Bit 5 TE 0 1 Description Transmission disabled* 2 Transmission enabled* 1 (Initial value) Notes: 1. The TDRE flag in SSR is fixed at 1. 2. In this state, serial transmission is started when transmit data is written to TDR and the TDRE flag in SSR is cleared to 0. SMR setting must be performed to decide the transfer format before setting the TE bit to 1. Bit 4--Receive Enable (RE): Enables or disables the start of serial reception by the SCI. Bit 4 RE 0 1 Description Reception disabled* 2 Reception enabled* 1 (Initial value) Notes: 1. Clearing the RE bit to 0 does not affect the RDRF, FER, PER, and ORER flags, which retain their states. 2. Serial reception is started in this state when a start bit is detected in asynchronous mode or serial clock input is detected in clocked synchronous mode. SMR setting must be performed to decide the transfer format before setting the RE bit to 1. Page 448 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Bit 3--Multiprocessor Interrupt Enable (MPIE): Enables or disables multiprocessor interrupts. The MPIE bit setting is only valid in asynchronous mode when the MP bit in SMR is set to 1. The MPIE bit setting is invalid in clocked synchronous mode or when the MP bit is cleared to 0. Bit 3 MPIE Description 0 Multiprocessor interrupts disabled (normal reception performed) (Initial value) [Clearing conditions] * When the MPIE bit is cleared to 0 * 1 When MPB= 1 data is received Multiprocessor interrupts enabled* Receive interrupt (RXI) requests, receive error interrupt (ERI) requests, and setting of the RDRF, FER, and ORER flags in SSR are disabled until data with the multiprocessor bit set to 1 is received. Note: * When receive data including MPB = 0 is received, receive data transfer from RSR to RDR, receive error detection, and setting of the RDRF, FER, and ORER flags in SSR , is not performed. When receive data including MPB = 1 is received, the MPB bit in SSR is set to 1, the MPIE bit is cleared to 0 automatically, and generation of RXI and ERI interrupts (when the TIE and RIE bits in SCR are set to 1) and FER and ORER flag setting is enabled. Bit 2--Transmit End Interrupt Enable (TEIE): Enables or disables transmit end interrupt (TEI) request generation when there is no valid transmit data in TDR in MSB data transmission. Bit 2 TEIE 0 1 Description Transmit end interrupt (TEI) request disabled* Transmit end interrupt (TEI) request enabled* (Initial value) Note: * TEI cancellation can be performed by reading 1 from the TDRE flag in SSR, then clearing it to 0 and clearing the TEND flag to 0, or clearing the TEIE bit to 0. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 449 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Bits 1 and 0--Clock Enable 1 and 0 (CKE1, CKE0): These bits are used to select the SCI clock source and enable or disable clock output from the SCK pin. The combination of the CKE1 and CKE0 bits determines whether the SCK pin functions as an I/O port, the serial clock output pin, or the serial clock input pin. The setting of the CKE0 bit, however, is only valid for internal clock operation (CKE1 = 0) in asynchronous mode. The CKE0 bit setting is invalid in clocked synchronous mode, and in the case of external clock operation (CKE1 = 1). Note that the SCI's operating mode must be decided using SMR before setting the CKE1 and CKE0 bits. For details of clock source selection, see table 13.9. Bit 1 CKE1 Bit 0 CKE0 Description 0 0 Asynchronous mode 1 Internal clock/SCK pin functions as I/O port* Clocked synchronous mode Internal clock/SCK pin functions as serial clock 1 output* Asynchronous mode Internal clock/SCK pin functions as clock output* Clocked synchronous mode Internal clock/SCK pin functions as serial clock output Asynchronous mode External clock/SCK pin functions as clock input* Clocked synchronous mode Asynchronous mode External clock/SCK pin functions as serial clock input 3 External clock/SCK pin functions as clock input* Clocked synchronous mode External clock/SCK pin functions as serial clock input 1 1 0 1 2 3 Notes: 1. Initial value 2. Outputs a clock of the same frequency as the bit rate. 3. Inputs a clock with a frequency 16 times the bit rate. Page 450 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 13.2.7 Section 13 Serial Communication Interface (SCI) Serial Status Register (SSR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 TDRE RDRF ORER FER PER TEND MPB MPBT 1 0 0 0 0 1 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R R R/W Note: * Only 0 can be written, to clear the flag. SSR is an 8-bit register containing status flags that indicate the operating status of the SCI, and multiprocessor bits. SSR can be read or written to by the CPU at all times. However, 1 cannot be written to flags TDRE, RDRF, ORER, PER, and FER. Also note that in order to clear these flags they must be read as 1 beforehand. The TEND flag and MPB flag are read-only flags and cannot be modified. SSR is initialized to H'84 by a reset, in standby mode, watch mode, subactive mode, subsleep mode, or module stop mode. Bit 7--Transmit Data Register Empty (TDRE): Indicates that data has been transferred from TDR to TSR and the next serial data can be written to TDR. Bit 7 TDRE Description 0 [Clearing conditions] 1 * When 0 is written to TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR [Setting conditions] * When the TE bit in SCR is 0 * When data is transferred from TDR to TSR and data can be written to TDR REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 451 of 1126 Section 13 Serial Communication Interface (SCI) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 6--Receive Data Register Full (RDRF): Indicates that the received data is stored in RDR. Bit 6 RDRF Description 0 [Clearing conditions] 1 (Initial value) * When 0 is written to RDRF after reading RDRF = 1 * When the DTC is activated by an RXI interrupt and reads data from RDR [Setting condition] When serial reception ends normally and receive data is transferred from RSR to RDR Note: RDR and the RDRF flag are not affected and retain their previous values when an error is detected during reception or when the RE bit in SCR is cleared to 0. If reception of the next data is completed while the RDRF flag is still set to 1, an overrun error will occur and the receive data will be lost. Bit 5--Overrun Error (ORER): Indicates that an overrun error occurred during reception, causing abnormal termination. Bit 5 ORER Description 0 [Clearing condition] (Initial value)* 1 When 0 is written to ORER after reading ORER = 1 1 [Setting condition] 2 When the next serial reception is completed while RDRF = 1* Notes: 1. The ORER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 2. The receive data prior to the overrun error is retained in RDR, and the data received subsequently is lost. Also, subsequent serial reception cannot be continued while the ORER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. Page 452 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Bit 4--Framing Error (FER): Indicates that a framing error occurred during reception in asynchronous mode, causing abnormal termination. Bit 4 FER Description 0 [Clearing condition] 1 [Setting condition] (Initial value)* 1 When 0 is written to FER after reading FER = 1 When the SCI checks whether the stop bit at the end of the receive data when 2 reception ends, and the stop bit is 0 * Notes: 1. The FER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 2. In 2-stop-bit mode, only the first stop bit is checked for a value of 0; the second stop bit is not checked. If a framing error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the FER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. Bit 3--Parity Error (PER): Indicates that a parity error occurred during reception using parity addition in asynchronous mode, causing abnormal termination. Bit 3 PER Description 0 [Clearing condition] When 0 is written to PER after reading PER = 1 1 [Setting condition] 1 (Initial value)* When, in reception, the number of 1 bits in the receive data plus the parity bit does not 2 match the parity setting (even or odd) specified by the O/E bit in SMR* Notes: 1. The PER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 2. If a parity error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the PER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. Bit 2--Transmit End (TEND): Indicates that there is no valid data in TDR when the last bit of the transmit character is sent, and transmission has been ended. The TEND flag is read-only and cannot be modified. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 453 of 1126 Section 13 Serial Communication Interface (SCI) Bit 2 TEND Description 0 [Clearing conditions] 1 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM * When 0 is written to TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR [Setting conditions] (Initial value) * When the TE bit in SCR is 0 * When TDRE = 1 at transmission of the last bit of a 1-byte serial transmit character Bit 1--Multiprocessor Bit (MPB): When reception is performed using multiprocessor format in asynchronous mode, MPB stores the multiprocessor bit in the receive data. MPB is a read-only bit, and cannot be modified. Bit 1 MPB Description 0 [Clearing condition] (Initial value)* When data with a 0 multiprocessor bit is received 1 [Setting condition] When data with a 1 multiprocessor bit is received Note: * Retains its previous state when the RE bit in SCR is cleared to 0 with multiprocessor format. Bit 0--Multiprocessor Bit Transfer (MPBT): When transmission is performed using multiprocessor format in asynchronous mode, MPBT stores the multiprocessor bit to be added to the transmit data. The MPBT bit setting is invalid when multiprocessor format is not used, when not transmitting, and in clocked synchronous mode. Bit 0 MPBT Description 0 Data with a 0 multiprocessor bit is transmitted 1 Data with a 1 multiprocessor bit is transmitted Page 454 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 13.2.8 Section 13 Serial Communication Interface (SCI) Bit Rate Register (BRR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W BRR is an 8-bit register that sets the serial transmit/receive bit rate in accordance with the baud rate generator operating clock selected by bits CKS1 and CKS0 in SMR. BRR can be read or written to by the CPU at all times. BRR is initialized to H'FF by a reset and in standby mode. As baud rate generator control is performed independently for each channel, different values can be set for each channel. Table 13.3 shows sample BRR settings in asynchronous mode, and table 13.4 shows sample BRR settings in clocked synchronous mode. Table 13.3 BRR Settings for Various Bit Rates (Asynchronous Mode) = 4 MHz = 4.9152 MHz = 5 MHz Bit Rate (bit/s) n N Error (%) n N Error (%) n N Error (%) 110 2 70 0.03 2 86 0.31 2 88 150 1 207 0.16 1 255 0.00 2 300 1 103 0.16 1 127 0.00 1 = 6 MHz N Error (%) -0.25 2 106 -0.44 64 0.16 2 77 0.16 129 0.16 1 155 0.16 n 600 0 207 0.16 0 255 0.00 1 64 0.16 1 77 0.16 1200 0 103 0.16 0 127 0.00 0 129 0.16 0 155 0.16 2400 0 51 0.16 0 63 0.00 0 64 0.16 0 77 0.16 4800 0 25 0.16 0 31 0.00 0 32 -1.36 0 38 0.16 9600 0 12 0.16 0 15 0.00 0 15 1.73 0 19 -2.34 19200 -- -- -- 0 7 0.00 0 7 1.73 0 9 -2.34 31250 0 3 0.00 0 4 -1.70 0 4 0.00 0 5 0.00 38400 -- -- -- 0 3 0.00 3 1.73 0 4 -2.34 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 0 Page 455 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) = 6.144 MHz = 7.3728 MHz Bit Rate (bit/s) n N Error (%) n N Error (%) 110 2 108 0.08 2 130 150 2 79 0.00 2 95 300 1 159 0.00 1 600 1 79 0.00 1200 0 159 2400 0 4800 0 9600 = 8 MHz = 9.8304 MHz N Error (%) n N Error (%) -0.07 2 141 0.03 2 174 -0.26 0.00 2 103 0.16 2 127 0.00 191 0.00 1 207 0.16 1 255 0.00 1 95 0.00 1 103 0.16 1 127 0.00 0.00 0 191 0.00 0 207 0.16 0 255 0.00 79 0.00 0 95 0.00 0 103 0.16 0 127 0.00 39 0.00 0 47 0.00 0 51 0.16 0 63 0.00 0 19 0.00 0 23 0.00 0 25 0.16 0 31 0.00 19200 0 9 0.00 0 11 0.00 0 12 0.16 0 15 0.00 31250 0 5 2.40 -- -- -- 0 7 0.00 0 9 -1.70 38400 0 4 0.00 0 5 0.00 -- -- -- 0 7 0.00 = 12 MHz = 10 MHz Bit Rate (bit/s) n N Error (%) 110 2 177 150 2 129 300 2 600 n = 12.288 MHz = 14 MHz N Error (%) n N Error (%) n N Error (%) -0.25 2 212 0.03 2 217 0.08 2 248 -0.17 0.16 2 155 0.16 2 159 0.00 2 181 0.16 64 0.16 2 77 0.16 2 79 0.00 2 90 0.16 1 129 0.16 1 155 0.16 1 159 0.00 1 181 0.16 1200 1 64 0.16 1 77 0.16 1 79 0.00 1 90 0.16 2400 0 129 0.16 0 155 0.16 0 159 0.00 0 181 0.16 4800 0 64 0.16 0 77 0.16 0 79 0.00 0 90 0.16 9600 0 32 -1.36 0 38 0.16 0 39 0.00 0 45 -0.93 19200 0 15 1.73 0 19 -2.34 0 19 0.00 0 22 -0.93 31250 0 9 0.00 0 11 0.00 11 2.40 0 13 0.00 38400 0 7 1.73 0 9 -2.34 0 9 0.00 -- -- -- Page 456 of 1126 n 0 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) = 14.7456 MHz = 16 MHz = 17.2032 MHz = 18 MHz Bit Rate (bit/s) n N Error (%) n N Error (%) n N Error (%) n N Error (%) 110 3 64 0.70 3 70 0.03 3 75 0.48 3 79 -0.12 150 2 191 0.00 2 207 0.16 2 223 0.00 2 233 0.16 300 2 95 0.00 2 103 0.16 2 111 0.00 2 116 0.16 600 1 191 0.00 1 207 0.16 1 223 0.00 1 233 0.16 1200 1 95 0.00 1 103 0.16 1 111 0.00 1 116 0.16 2400 0 191 0.00 0 207 0.16 0 223 0.00 0 233 0.16 4800 0 95 0.00 0 103 0.16 0 111 0.00 0 116 0.16 9600 0 47 0.00 0 51 0.16 0 55 0.00 0 58 -0.69 19200 0 23 0.00 0 25 0.16 0 27 0.00 0 28 1.02 31250 0 14 -1.70 0 15 0.00 0 16 1.20 0 17 0.00 38400 0 11 0.00 12 0.16 0 13 0.00 0 14 -2.34 0 = 20 MHz = 19.6608 MHz Bit Rate (bit/s) n N Error (%) n N Error (%) 110 3 86 0.31 3 88 -0.25 150 2 255 0.00 3 64 0.16 300 2 127 0.00 2 129 0.16 600 1 255 0.00 2 64 0.16 1200 1 127 0.00 1 129 0.16 2400 0 255 0.00 1 64 0.16 4800 0 127 0.00 0 129 0.16 9600 0 63 0.00 0 64 0.16 19200 0 31 0.00 0 32 -1.36 31250 0 19 -1.70 0 19 0.00 38400 0 15 0.00 15 1.73 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 0 Page 457 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Table 13.4 BRR Settings for Various Bit Rates (Clocked Synchronous Mode) = 4 MHz Bit Rate (bit/s) n N 110 -- -- 250 2 500 2 1k = 8 MHz = 10 MHz = 16 MHz n N n N n N 249 3 124 -- -- 3 249 124 2 249 -- -- 3 1 249 2 124 -- -- 2.5 k 1 99 1 199 1 5k 0 199 1 99 10 k 0 99 0 25 k 0 39 0 50 k 0 19 100 k 0 250 k = 20 MHz n N 124 -- -- 2 249 -- -- 249 2 99 2 124 1 124 1 199 1 249 199 0 249 1 99 1 124 79 0 99 0 159 0 199 0 39 0 49 0 79 0 99 9 0 19 0 24 0 39 0 49 0 3 0 7 0 9 0 15 0 19 500 k 0 1 0 3 0 4 0 7 0 9 1M 0 0* 0 1 0 3 0 4 0 1 0 0* 2.5 M 5M 0 0* Note: As far as possible, the setting should be made so that the error is no more than 1%. Legend: Blank : Cannot be set. -- : Can be set, but there will be a degree of error. * : Continuous transfer is not possible. Page 458 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) The BRR setting is found from the following formulas. Asynchronous mode: N= 64 x 2 x 10 - 1 6 2n-1 xB Clocked synchronous mode: N= Where B: N: : n: 8x2 2n-1 x 10 - 1 6 xB Bit rate (bit/s) BRR setting for baud rate generator (0 N 255) Operating frequency (MHz) Baud rate generator input clock (n = 0 to 3) (See the table below for the relation between n and the clock.) SMR Setting n Clock CKS1 CKS0 0 0 0 1 /4 0 1 2 /16 1 0 3 /64 1 1 The bit rate error in asynchronous mode is found from the following formula: Error (%) = { REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 x 10 6 (N + 1) x B x 64 x 2 2n-1 - 1} x 100 Page 459 of 1126 Section 13 Serial Communication Interface (SCI) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Table 13.5 shows the maximum bit rate for each frequency in asynchronous mode. Tables 13.6 and 13.7 show the maximum bit rates with external clock input. Table 13.5 Maximum Bit Rate for Each Frequency (Asynchronous Mode) (MHz) Maximum Bit Rate (bit/s) n N 4 125000 0 0 4.9152 153600 0 0 5 156250 0 0 6 187500 0 0 6.144 192000 0 0 7.3728 230400 0 0 8 250000 0 0 9.8304 307200 0 0 10 312500 0 0 12 375000 0 0 12.288 384000 0 0 14 437500 0 0 14.7456 460800 0 0 16 500000 0 0 17.2032 537600 0 0 18 562500 0 0 19.6608 614400 0 0 20 625000 0 0 Page 460 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Table 13.6 Maximum Bit Rate with External Clock Input (Asynchronous Mode) (MHz) External Input Clock (MHz) Maximum Bit Rate (bit/s) 4 1.0000 62500 4.9152 1.2288 76800 5 1.2500 78125 6 1.5000 93750 6.144 1.5360 96000 7.3728 1.8432 115200 8 2.0000 125000 9.8304 2.4576 153600 10 2.5000 156250 12 3.0000 187500 12.288 3.0720 192000 14 3.5000 218750 14.7456 3.6864 230400 16 4.0000 250000 17.2032 4.3008 268800 18 4.5000 281250 19.6608 4.9152 307200 20 5.0000 312500 Table 13.7 Maximum Bit Rate with External Clock Input (Clocked Synchronous Mode) (MHz) External Input Clock (MHz) Maximum Bit Rate (bit/s) 4 0.6667 666666.7 6 1.0000 1000000.0 8 1.3333 1333333.3 10 1.6667 1666666.7 12 2.0000 2000000.0 14 2.3333 2333333.3 16 2.6667 2666666.7 18 3.0000 3000000.0 20 3.3333 3333333.3 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 461 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) 13.2.9 Smart Card Mode Register (SCMR) Bit : 7 6 5 4 3 2 1 0 -- -- -- -- SDIR SINV -- SMIF Initial value : 1 1 1 1 0 0 1 0 R/W -- -- -- -- R/W R/W -- R/W : SCMR selects LSB-first or MSB-first by means of bit SDIR. Except in the case of asynchronous mode 7-bit data, LSB-first or MSB-first can be selected regardless of the serial communication mode. The descriptions in this chapter refer to LSB-first transfer. For details of the other bits in SCMR, see section 14.2.1, Smart Card Mode Register (SCMR). SCMR is initialized to H'F2 by a reset and in standby mode. Bits 7 to 4--Reserved: It is always read as 1 and cannot be modified. Bit 3--Smart Card Data Transfer Direction (SDIR): Selects the serial/parallel conversion format. This bit is valid when 8-bit data is used as the transmit/receive format. Bit 3 SDIR Description 0 TDR contents are transmitted LSB-first 1 TDR contents are transmitted MSB-first (Initial value) Receive data is stored in RDR LSB-first Receive data is stored in RDR MSB-first Page 462 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Bit 2--Smart Card Data Invert (SINV): Specifies inversion of the data logic level. The SINV bit does not affect the logic level of the parity bit(s): parity bit inversion requires inversion of the O/E bit in SMR. Bit 2 SINV Description 0 TDR contents are transmitted without modification (Initial value) Receive data is stored in RDR without modification 1 TDR contents are inverted before being transmitted Receive data is stored in RDR in inverted form Bit 1--Reserved: It is always read as 1 and cannot be modified. Bit 0--Smart Card Interface Mode Select (SMIF): When the smart card interface operates as a normal SCI, 0 should be written in this bit. Bit 0 SMIF Description 0 Operates as normal SCI (smart card interface function disabled) 1 Smart card interface function enabled (Initial value) 13.2.10 Module Stop Control Register B (MSTPCRB) Bit : 7 6 5 4 3 2 0 1 MSTPB7 MSTPB6 MSTPB5 MSTPB4 MSTPB3 MSTPB2 MSTPB1 MSTPB0 Initial value : R/W : 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W MSTPCRB is an 8-bit readable/writable register that perform module stop mode control. Setting any of bits MSTPB7 and MSTPB6 to 1 stops SCI0 and SCI1 operating and enter module stop mode on completion of the bus cycle. For details, see section 22.5, Module Stop Mode. MSTPCRB is initialized to H'FF by a reset and in hardware standby mode. They are not initialized in software standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 463 of 1126 Section 13 Serial Communication Interface (SCI) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 7--Module Stop (MSTPB7): Specifies the SCI0 module stop mode. Bit 7 MSTPB7 Description 0 SCI0 module stop mode is cleared 1 SCI0 module stop mode is set (Initial value) Bit 6--Module Stop (MSTPB6): Specifies the SCI1 module stop mode. Bit 6 MSTPB6 Description 0 SCI1 module stop mode is cleared 1 SCI1 module stop mode is set (Initial value) Bit 5--Module Stop (MSTPB5): Specifies the SCI2 module stop mode. Bit 5 MSTPB5 Description 0 SCI2 module stop mode is cleared 1 SCI2 module stop mode is set (Initial value) Note: H8S/2648, H8S/2648R, and H8S/2647 only. Page 464 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 13.3 Operation 13.3.1 Overview Section 13 Serial Communication Interface (SCI) The SCI can carry out serial communication in two modes: asynchronous mode in which synchronization is achieved character by character, and clocked synchronous mode in which synchronization is achieved with clock pulses. Selection of asynchronous or clocked synchronous mode and the transmission format is made using SMR as shown in table 13.8. The SCI clock is determined by a combination of the C/A bit in SMR and the CKE1 and CKE0 bits in SCR, as shown in table 13.9. Asynchronous Mode * Data length: Choice of 7 or 8 bits * Choice of parity addition, multiprocessor bit addition, and addition of 1 or 2 stop bits (the combination of these parameters determines the transfer format and character length) * Detection of framing, parity, and overrun errors, and breaks, during reception * Choice of internal or external clock as SCI clock source When internal clock is selected: The SCI operates on the baud rate generator clock and a clock with the same frequency as the bit rate can be output When external clock is selected: A clock with a frequency of 16 times the bit rate must be input (the on-chip baud rate generator is not used) Clocked Synchronous Mode * Transfer format: Fixed 8-bit data * Detection of overrun errors during reception * Choice of internal or external clock as SCI clock source When internal clock is selected: The SCI operates on the baud rate generator clock and a serial clock is output off-chip When external clock is selected: The on-chip baud rate generator is not used, and the SCI operates on the input serial clock REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 465 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Table 13.8 SMR Settings and Serial Transfer Format Selection SMR Settings SCI Transfer Format Bit 7 Bit 6 Bit 2 Bit 5 Bit 3 C/A CHR MP PE STOP Mode 0 0 0 0 0 Asynchronous mode 1 1 Data Length MultiProcessor Bit Parity Bit Stop Bit Length 8-bit data No No 1 bit 2 bits 0 Yes 1 1 0 2 bits 0 7-bit data No 1 1 0 1 -- 0 -- 1 1 -- 0 -- 1 1 -- -- -- -- 1 bit 2 bits Yes 1 0 1 bit 1 bit 2 bits Asynchronous mode (multiprocessor format) 8-bit data Yes No 1 bit 2 bits 7-bit data 1 bit 2 bits Clocked 8-bit data synchronous mode No None Table 13.9 SMR and SCR Settings and SCI Clock Source Selection SMR SCR Setting SCI Transmit/Receive Clock Bit 7 Bit 1 Bit 0 C/A CKE1 CKE0 Mode 0 0 0 Asynchronous mode 1 1 0 Clock Source SCK Pin Function Internal SCI does not use SCK pin Outputs clock with same frequency as bit rate External Inputs clock with frequency of 16 times the bit rate Internal Outputs serial clock External Inputs serial clock 1 1 0 0 1 1 0 Clocked synchronous mode 1 Page 466 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 13.3.2 Section 13 Serial Communication Interface (SCI) Operation in Asynchronous Mode In asynchronous mode, characters are sent or received, each preceded by a start bit indicating the start of communication and stop bits indicating the end of communication. Serial communication is thus carried out with synchronization established on a character-by-character basis. Inside the SCI, the transmitter and receiver are independent units, enabling full-duplex communication. Both the transmitter and the receiver also have a double-buffered structure, so that data can be read or written during transmission or reception, enabling continuous data transfer. Figure 13.2 shows the general format for asynchronous serial communication. In asynchronous serial communication, the transmission line is usually held in the mark state (high level). The SCI monitors the transmission line, and when it goes to the space state (low level), recognizes a start bit and starts serial communication. One serial communication character consists of a start bit (low level), followed by data (in LSBfirst order), a parity bit (high or low level), and finally stop bits (high level). In asynchronous mode, the SCI performs synchronization at the falling edge of the start bit in reception. The SCI samples the data on the 8th pulse of a clock with a frequency of 16 times the length of one bit, so that the transfer data is latched at the center of each bit. Idle state (mark state) 1 Serial data LSB 0 1 MSB D0 D1 D2 D3 D4 D5 Start bit Transmit/receive data 1 bit 7 or 8 bits D6 D7 0/1 Parity bit 1 bit, or none 1 1 Stop bit 1 or 2 bits One unit of transfer data (character or frame) Figure 13.2 Data Format in Asynchronous Communication (Example with 8-Bit Data, Parity, Two Stop Bits) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 467 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Data Transfer Format Table 13.10 shows the data transfer formats that can be used in asynchronous mode. Any of 12 transfer formats can be selected according to the SMR setting. Table 13.10 Serial Transfer Formats (Asynchronous Mode) SMR Settings Serial Transfer Format and Frame Length CHR PE MP STOP 1 2 3 4 5 6 7 8 9 10 11 12 0 0 0 0 S 8-bit data STOP 0 0 0 1 S 8-bit data STOP STOP 0 1 0 0 S 8-bit data P STOP 0 1 0 1 S 8-bit data P STOP STOP 1 0 0 0 S 7-bit data STOP 1 0 0 1 S 7-bit data STOP STOP 1 1 0 0 S 7-bit data P STOP 1 1 0 1 S 7-bit data P STOP STOP 0 -- 1 0 S 8-bit data MPB STOP 0 -- 1 1 S 8-bit data MPB STOP STOP 1 -- 1 0 S 7-bit data MPB STOP 1 -- 1 1 S 7-bit data MPB STOP STOP Legend: S : Start bit STOP : Stop bit P : Parity bit MPB : Multiprocessor bit Page 468 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Clock Either an internal clock generated by the on-chip baud rate generator or an external clock input at the SCK pin can be selected as the SCI's serial clock, according to the setting of the C/A bit in SMR and the CKE1 and CKE0 bits in SCR. For details of SCI clock source selection, see table 13.9. When an external clock is input at the SCK pin, the clock frequency should be 16 times the bit rate used. When the SCI is operated on an internal clock, the clock can be output from the SCK pin. The frequency of the clock output in this case is equal to the bit rate, and the phase is such that the rising edge of the clock is in the middle of the transmit data, as shown in figure 13.3. 0 D0 D1 D2 D3 D4 D5 D6 D7 0/1 1 1 1 frame Figure 13.3 Relation between Output Clock and Transfer Data Phase (Asynchronous Mode) Data Transfer Operations SCI initialization (asynchronous mode): Before transmitting and receiving data, you should first clear the TE and RE bits in SCR to 0, then initialize the SCI as described below. When the operating mode, transfer format, etc., is changed, the TE and RE bits must be cleared to 0 before making the change using the following procedure. When the TE bit is cleared to 0, the TDRE flag is set to 1 and TSR is initialized. Note that clearing the RE bit to 0 does not change the contents of the RDRF, PER, FER, and ORER flags, or the contents of RDR. When an external clock is used the clock should not be stopped during operation, including initialization, since operation is uncertain. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 469 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Figure 13.4 shows a sample SCI initialization flowchart. [1] Set the clock selection in SCR. Be sure to clear bits RIE, TIE, TEIE, and MPIE, and bits TE and RE, to 0. Start initialization Clear TE and RE bits in SCR to 0 Set CKE1 and CKE0 bits in SCR (TE, RE bits 0) [1] Set data transfer format in SMR and SCMR [2] Set value in BRR [3] When the clock is selected in asynchronous mode, it is output immediately after SCR settings are made. [2] Set the data transfer format in SMR and SCMR. [3] Write a value corresponding to the bit rate to BRR. Not necessary if an external clock is used. Wait No 1-bit interval elapsed? Yes Set TE and RE bits in SCR to 1, and set RIE, TIE, TEIE, and MPIE bits [4] Wait at least one bit interval, then set the TE bit or RE bit in SCR to 1. Also set the RIE, TIE, TEIE, and MPIE bits. Setting the TE and RE bits enables the TxD and RxD pins to be used. [4] <Transfer completion> Figure 13.4 Sample SCI Initialization Flowchart Serial data transmission (asynchronous mode): Figure 13.5 shows a sample flowchart for serial transmission. The following procedure should be used for serial data transmission. Page 470 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) [1] Initialization Start transmission Read TDRE flag in SSR [2] [2] SCI status check and transmit data write: Read SSR and check that the TDRE flag is set to 1, then write transmit data to TDR and clear the TDRE flag to 0. No TDRE = 1 Yes Write transmit data to TDR and clear TDRE flag in SSR to 0 No All data transmitted? Yes [3] Read TEND flag in SSR No TEND = 1 Yes No Break output? Yes [1] SCI initialization: The TxD pin is automatically designated as the transmit data output pin. After the TE bit is set to 1, a frame of 1s is output, and transmission is enabled. [4] [3] Serial transmission continuation procedure: To continue serial transmission, read 1 from the TDRE flag to confirm that writing is possible, then write data to TDR, and then clear the TDRE flag to 0. Checking and clearing of the TDRE flag is automatic when the DTC is activated by a transmit data empty interrupt (TXI) request, and date is written to TDR. [4] Break output at the end of serial transmission: To output a break in serial transmission, set DDR for the port corresponding to the TxD pin to 1, clear DR to 0, then clear the TE bit in SCR to 0. Clear DR to 0 and set DDR to 1 Clear TE bit in SCR to 0 <End> Figure 13.5 Sample Serial Transmission Flowchart REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 471 of 1126 Section 13 Serial Communication Interface (SCI) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM In serial transmission, the SCI operates as described below. [1] The SCI monitors the TDRE flag in SSR, and if is 0, recognizes that data has been written to TDR, and transfers the data from TDR to TSR. [2] After transferring data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts transmission. If the TIE bit is set to 1 at this time, a transmit data empty interrupt (TXI) is generated. The serial transmit data is sent from the TxD pin in the following order. [a] Start bit: One 0-bit is output. [b] Transmit data: 8-bit or 7-bit data is output in LSB-first order. [c] Parity bit or multiprocessor bit: One parity bit (even or odd parity), or one multiprocessor bit is output. A format in which neither a parity bit nor a multiprocessor bit is output can also be selected. [d] Stop bit(s): One or two 1-bits (stop bits) are output. [e] Mark state: 1 is output continuously until the start bit that starts the next transmission is sent. [3] The SCI checks the TDRE flag at the timing for sending the stop bit. If the TDRE flag is cleared to 0, the data is transferred from TDR to TSR, the stop bit is sent, and then serial transmission of the next frame is started. If the TDRE flag is set to 1, the TEND flag in SSR is set to 1, the stop bit is sent, and then the "mark state" is entered in which 1 is output continuously. If the TEIE bit in SCR is set to 1 at this time, a TEI interrupt request is generated. Page 472 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Figure 13.6 shows an example of the operation for transmission in asynchronous mode. 1 Start bit 0 Data D0 D1 Parity Stop Start bit bit bit D7 0/1 1 0 Data D0 D1 Parity Stop bit bit D7 0/1 1 1 Idle state (mark state) TDRE TEND TXI interrupt Data written to TDR and request generated TDRE flag cleared to 0 in TXI interrupt service routine TXI interrupt request generated TEI interrupt request generated 1 frame Figure 13.6 Example of Operation in Transmission in Asynchronous Mode (Example with 8-Bit Data, Parity, One Stop Bit) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 473 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Serial data reception (asynchronous mode): Figure 13.7 shows a sample flowchart for serial reception. The following procedure should be used for serial data reception. Initialization [1] Start reception [1] SCI initialization: The RxD pin is automatically designated as the receive data input pin. [2] [3] Receive error processing and break detection: Read ORER, PER, and If a receive error occurs, read the [2] FER flags in SSR ORER, PER, and FER flags in SSR to identify the error. After performing the appropriate error Yes processing, ensure that the PER FER ORER = 1 ORER, PER, and FER flags are [3] all cleared to 0. Reception cannot No Error processing be resumed if any of these flags (Continued on next page) are set to 1. In the case of a framing error, a break can be detected by reading the value of [4] Read RDRF flag in SSR the input port corresponding to the RxD pin. No RDRF = 1 [4] SCI status check and receive data read : Read SSR and check that RDRF = 1, then read the receive data in RDR and clear the RDRF flag to 0. Transition of the RDRF flag from 0 to 1 can also be identified by an RXI interrupt. Yes Read receive data in RDR, and clear RDRF flag in SSR to 0 No All data received? Yes Clear RE bit in SCR to 0 <End> [5] [5] Serial reception continuation procedure: To continue serial reception, before the stop bit for the current frame is received, read the RDRF flag, read RDR, and clear the RDRF flag to 0. The RDRF flag is cleared automatically when DTC is activated by an RXI interrupt and the RDR value is read. Figure 13.7 Sample Serial Reception Data Flowchart Page 474 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) [3] Error processing No ORER = 1 Yes Overrun error processing No FER = 1 Yes Yes Break? No Framing error processing Clear RE bit in SCR to 0 No PER = 1 Yes Parity error processing Clear ORER, PER, and FER flags in SSR to 0 <End> Figure 13.7 Sample Serial Reception Data Flowchart (cont) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 475 of 1126 Section 13 Serial Communication Interface (SCI) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM In serial reception, the SCI operates as described below. [1] The SCI monitors the transmission line, and if a 0 start bit is detected, performs internal synchronization and starts reception. [2] The received data is stored in RSR in LSB-to-MSB order. [3] The parity bit and stop bit are received. After receiving these bits, the SCI carries out the following checks. [a] Parity check: The SCI checks whether the number of 1 bits in the receive data agrees with the parity (even or odd) set in the O/E bit in SMR. [b] Stop bit check: The SCI checks whether the stop bit is 1. If there are two stop bits, only the first is checked. [c] Status check: The SCI checks whether the RDRF flag is 0, indicating that the receive data can be transferred from RSR to RDR. If all the above checks are passed, the RDRF flag is set to 1, and the receive data is stored in RDR. If a receive error* is detected in the error check, the operation is as shown in table 13.11. Note: * Subsequent receive operations cannot be performed when a receive error has occurred. Also note that the RDRF flag is not set to 1 in reception, and so the error flags must be cleared to 0. [4] If the RIE bit in SCR is set to 1 when the RDRF flag changes to 1, a receive data full interrupt (RXI) request is generated. Also, if the RIE bit in SCR is set to 1 when the ORER, PER, or FER flag changes to 1, a receive error interrupt (ERI) request is generated. Page 476 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Table 13.11 Receive Errors and Conditions for Occurrence Receive Error Abbreviation Occurrence Condition Data Transfer Overrun error ORER When the next data reception is Receive data is not completed while the RDRF flag in transferred from RSR to SSR is set to 1 RDR. Framing error FER When the stop bit is 0 Receive data is transferred from RSR to RDR. Parity error PER When the received data differs from the parity (even or odd) set in SMR Receive data is transferred from RSR to RDR. Figure 13.8 shows an example of the operation for reception in asynchronous mode. 1 Start bit 0 Data D0 D1 Parity Stop Start bit bit bit D7 0/1 1 0 Data D0 D1 Parity Stop bit bit D7 0/1 0 1 Idle state (mark state) RDRF FER RXI interrupt request generated RDR data read and RDRF flag cleared to 0 in RXI interrupt service routine ERI interrupt request generated by framing error 1 frame Figure 13.8 Example of SCI Operation in Reception (Example with 8-Bit Data, Parity, One Stop Bit) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 477 of 1126 Section 13 Serial Communication Interface (SCI) 13.3.3 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Multiprocessor Communication Function The multiprocessor communication function performs serial communication using the multiprocessor format, in which a multiprocessor bit is added to the transfer data, in asynchronous mode. Use of this function enables data transfer to be performed among a number of processors sharing transmission lines. When multiprocessor communication is carried out, each receiving station is addressed by a unique ID code. The serial communication cycle consists of two component cycles: an ID transmission cycle which specifies the receiving station , and a data transmission cycle. The multiprocessor bit is used to differentiate between the ID transmission cycle and the data transmission cycle. The transmitting station first sends the ID of the receiving station with which it wants to perform serial communication as data with a 1 multiprocessor bit added. It then sends transmit data as data with a 0 multiprocessor bit added. The receiving station skips the data until data with a 1 multiprocessor bit is sent. When data with a 1 multiprocessor bit is received, the receiving station compares that data with its own ID. The station whose ID matches then receives the data sent next. Stations whose ID does not match continue to skip the data until data with a 1 multiprocessor bit is again received. In this way, data communication is carried out among a number of processors. Figure 13.9 shows an example of inter-processor communication using the multiprocessor format. Data Transfer Format There are four data transfer formats. When the multiprocessor format is specified, the parity bit specification is invalid. For details, see table 13.10. Page 478 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Clock See the section on asynchronous mode. Transmitting station Serial transmission line Receiving station A Receiving station B Receiving station C Receiving station D (ID = 01) (ID = 02) (ID = 03) (ID = 04) Serial data H'AA H'01 (MPB = 1) ID transmission cycle = receiving station specification (MPB = 0) Data transmission cycle = Data transmission to receiving station specified by ID Legend: MPB: Multiprocessor bit Figure 13.9 Example of Inter-Processor Communication Using Multiprocessor Format (Transmission of Data H'AA to Receiving Station A) Data Transfer Operations Multiprocessor serial data transmission: Figure 13.10 shows a sample flowchart for multiprocessor serial data transmission. The following procedure should be used for multiprocessor serial data transmission. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 479 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) [1] [1] SCI initialization: Initialization Start transmission Read TDRE flag in SSR [2] No TDRE = 1 Yes Write transmit data to TDR and set MPBT bit in SSR Clear TDRE flag to 0 No All data transmitted? Yes Read TEND flag in SSR No TEND = 1 Yes No Break output? The TxD pin is automatically designated as the transmit data output pin. After the TE bit is set to 1, a frame of 1s is output, and transmission is enabled. [2] SCI status check and transmit data write: Read SSR and check that the TDRE flag is set to 1, then write transmit data to TDR. Set the MPBT bit in SSR to 0 or 1. Finally, clear the TDRE flag to 0. [3] Serial transmission continuation procedure: To continue serial transmission, be sure to read 1 from the TDRE flag to confirm that writing is [3] possible, then write data to TDR, and then clear the TDRE flag to 0. Checking and clearing of the TDRE flag is automatic when the DTC is activated by a transmit data empty interrupt (TXI) request, and data is written to TDR. [4] Break output at the end of serial transmission: To output a break in serial transmission, set the port DDR to [4] 1, clear DR to 0, then clear the TE bit in SCR to 0. Yes Clear DR to 0 and set DDR to 1 Clear TE bit in SCR to 0 <End> Figure 13.10 Sample Multiprocessor Serial Transmission Flowchart Page 480 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) In serial transmission, the SCI operates as described below. [1] The SCI monitors the TDRE flag in SSR, and if is 0, recognizes that data has been written to TDR, and transfers the data from TDR to TSR. [2] After transferring data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts transmission. If the TIE bit in SCR is set to 1 at this time, a transmit data empty interrupt (TXI) is generated. The serial transmit data is sent from the TxD pin in the following order. [a] Start bit: One 0-bit is output. [b] Transmit data: 8-bit or 7-bit data is output in LSB-first order. [c] Multiprocessor bit One multiprocessor bit (MPBT value) is output. [d] Stop bit(s): One or two 1-bits (stop bits) are output. [e] Mark state: 1 is output continuously until the start bit that starts the next transmission is sent. [3] The SCI checks the TDRE flag at the timing for sending the stop bit. If the TDRE flag is cleared to 0, data is transferred from TDR to TSR, the stop bit is sent, and then serial transmission of the next frame is started. If the TDRE flag is set to 1, the TEND flag in SSR is set to 1, the stop bit is sent, and then the mark state is entered in which 1 is output continuously. If the TEIE bit in SCR is set to 1 at this time, a transmission end interrupt (TEI) request is generated. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 481 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Figure 13.11 shows an example of SCI operation for transmission using the multiprocessor format. 1 Start bit 0 Multiprocessor Stop bit bit Data D0 D1 D7 0/1 1 Start bit 0 Multiproces- Stop 1 sor bit bit Data D0 D1 D7 0/1 1 Idle state (mark state) TDRE TEND TXI interrupt request generated Data written to TDR and TDRE flag cleared to 0 in TXI interrupt service routine TXI interrupt request generated TEI interrupt request generated 1 frame Figure 13.11 Example of SCI Operation in Transmission (Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit) Multiprocessor serial data reception: Figure 13.12 shows a sample flowchart for multiprocessor serial reception. The following procedure should be used for multiprocessor serial data reception. Page 482 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Initialization Section 13 Serial Communication Interface (SCI) [1] [1] SCI initialization: The RxD pin is automatically designated as the receive data input pin. [2] [2] ID reception cycle: Set the MPIE bit in SCR to 1. Start reception Set MPIE bit in SCR to 1 Read ORER and FER flags in SSR FER ORER = 1 [3] SCI status check, ID reception and comparison: Read SSR and check that the RDRF flag is set to 1, then read the receive data in RDR and compare it with this station's ID. If the data is not this station's ID, set the MPIE bit to 1 again, and clear the RDRF flag to 0. If the data is this station's ID, clear the RDRF flag to 0. Yes No Read RDRF flag in SSR [3] No RDRF = 1 Yes [4] SCI status check and data reception: Read SSR and check that the RDRF flag is set to 1, then read the data in RDR. Read receive data in RDR No This station's ID? Yes [5] Receive error processing and break detection: If a receive error occurs, read the ORER and FER flags in SSR to identify the error. After performing the appropriate error processing, ensure that the ORER and FER flags are all cleared to 0. Reception cannot be resumed if either of these flags is set to 1. In the case of a framing error, a break can be detected by reading the RxD pin value. Read ORER and FER flags in SSR FER ORER = 1 Yes No Read RDRF flag in SSR [4] No RDRF = 1 Yes Read receive data in RDR No All data received? [5] Error processing Yes Clear RE bit in SCR to 0 (Continued on next page) <End> Figure 13.12 Sample Multiprocessor Serial Reception Flowchart REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 483 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) [5] Error processing No ORER = 1 Yes Overrun error processing No FER = 1 Yes Yes Break? No Framing error processing Clear RE bit in SCR to 0 Clear ORER, PER, and FER flags in SSR to 0 <End> Figure 13.12 Sample Multiprocessor Serial Reception Flowchart (cont) Page 484 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Figure 13.13 shows an example of SCI operation for multiprocessor format reception. 1 Start bit 0 Data (ID1) MPB D0 D1 D7 1 Stop bit Start bit 1 0 Data (Data1) MPB D0 D1 D7 0 Stop bit 1 1 Idle state (mark state) MPIE RDRF RDR value ID1 RXI interrupt request (multiprocessor interrupt) generated MPIE = 0 RDR data read and RDRF flag cleared to 0 in RXI interrupt service routine If not this station's ID, RXI interrupt request is MPIE bit is set to 1 not generated, and RDR again retains its state (a) Data does not match station's ID 1 Start bit 0 Data (ID2) MPB D0 D1 D7 1 Stop bit Start bit 1 0 Data (Data2) MPB D0 D1 D7 0 Stop bit 1 1 Idle state (mark state) MPIE RDRF RDR value ID2 ID1 MPIE = 0 RXI interrupt request (multiprocessor interrupt) generated RDR data read and RDRF flag cleared to 0 in RXI interrupt service routine Matches this station's ID, so reception continues, and data is received in RXI interrupt service routine Data2 MPIE bit set to 1 again (b) Data matches station's ID Figure 13.13 Example of SCI Operation in Reception (Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 485 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) 13.3.4 Operation in Clocked Synchronous Mode In clocked synchronous mode, data is transmitted or received in synchronization with clock pulses, making it suitable for high-speed serial communication. Inside the SCI, the transmitter and receiver are independent units, enabling full-duplex communication by use of a common clock. Both the transmitter and the receiver also have a double-buffered structure, so that data can be read or written during transmission or reception, enabling continuous data transfer. Figure 13.14 shows the general format for clocked synchronous serial communication. One unit of transfer data (character or frame) * * Serial clock LSB Serial data Bit 0 MSB Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Don't care Don't care Note: * High except in continuous transfer Figure 13.14 Data Format in Synchronous Communication In clocked synchronous serial communication, data on the transmission line is output from one falling edge of the serial clock to the next. Data confirmation is guaranteed at the rising edge of the serial clock. In clocked serial communication, one character consists of data output starting with the LSB and ending with the MSB. After the MSB is output, the transmission line holds the MSB state. In clocked synchronous mode, the SCI receives data in synchronization with the rising edge of the serial clock. Data Transfer Format A fixed 8-bit data format is used. No parity or multiprocessor bits are added. Page 486 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Clock Either an internal clock generated by the on-chip baud rate generator or an external serial clock input at the SCK pin can be selected, according to the setting of the C/A bit in SMR and the CKE1 and CKE0 bits in SCR. For details of SCI clock source selection, see table 13.9. When the SCI is operated on an internal clock, the serial clock is output from the SCK pin. Eight serial clock pulses are output in the transfer of one character, and when no transfer is performed the clock is fixed high. When only receive operations are performed, however, the serial clock is output until an overrun error occurs or the RE bit is cleared to 0. If you want to perform receive operations in units of one character, you should select an external clock as the clock source. Data Transfer Operations SCI initialization (clocked synchronous mode): Before transmitting and receiving data, you should first clear the TE and RE bits in SCR to 0, then initialize the SCI as described below. When the operating mode, transfer format, etc., is changed, the TE and RE bits must be cleared to 0 before making the change using the following procedure. When the TE bit is cleared to 0, the TDRE flag is set to 1 and TSR is initialized. Note that clearing the RE bit to 0 does not change the contents of the RDRF, PER, FER, and ORER flags, or the contents of RDR. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 487 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Figure 13.15 shows a sample SCI initialization flowchart. [1] Set the clock selection in SCR. Be sure to clear bits RIE, TIE, TEIE, and MPIE, TE and RE, to 0. Start initialization Clear TE and RE bits in SCR to 0 [2] Set the data transfer format in SMR and SCMR. Set CKE1 and CKE0 bits in SCR (TE, RE bits 0) [1] Set data transfer format in SMR and SCMR [2] Set value in BRR [3] Wait No [3] Write a value corresponding to the bit rate to BRR. Not necessary if an external clock is used. [4] Wait at least one bit interval, then set the TE bit or RE bit in SCR to 1. Also set the RIE, TIE, TEIE, and MPIE bits. Setting the TE and RE bits enables the TxD and RxD pins to be used. 1-bit interval elapsed? Yes Set TE and RE bits in SCR to 1, and set RIE, TIE, TEIE, and MPIE bits [4] <Transfer start> Note: In simultaneous transmit and receive operations, the TE and RE bits should both be cleared to 0 or set to 1 simultaneously. Figure 13.15 Sample SCI Initialization Flowchart Page 488 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Serial data transmission (clocked synchronous mode): Figure 13.16 shows a sample flowchart for serial transmission. The following procedure should be used for serial data transmission. [1] Initialization Start transmission Read TDRE flag in SSR [2] No TDRE = 1 Yes Write transmit data to TDR and clear TDRE flag in SSR to 0 No All data transmitted? [3] Yes Read TEND flag in SSR [1] SCI initialization: The TxD pin is automatically designated as the transmit data output pin. [2] SCI status check and transmit data write: Read SSR and check that the TDRE flag is set to 1, then write transmit data to TDR and clear the TDRE flag to 0. [3] Serial transmission continuation procedure: To continue serial transmission, be sure to read 1 from the TDRE flag to confirm that writing is possible, then write data to TDR, and then clear the TDRE flag to 0. Checking and clearing of the TDRE flag is automatic when the DTC is activated by a transmit data empty interrupt (TXI) request and data is written to TDR. No TEND = 1 Yes Clear TE bit in SCR to 0 <End> Figure 13.16 Sample Serial Transmission Flowchart REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 489 of 1126 Section 13 Serial Communication Interface (SCI) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM In serial transmission, the SCI operates as described below. [1] The SCI monitors the TDRE flag in SSR, and if is 0, recognizes that data has been written to TDR, and transfers the data from TDR to TSR. [2] After transferring data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts transmission. If the TIE bit in SCR is set to 1 at this time, a transmit data empty interrupt (TXI) is generated. When clock output mode has been set, the SCI outputs 8 serial clock pulses. When use of an external clock has been specified, data is output synchronized with the input clock. The serial transmit data is sent from the TxD pin starting with the LSB (bit 0) and ending with the MSB (bit 7). [3] The SCI checks the TDRE flag at the timing for sending the MSB (bit 7). If the TDRE flag is cleared to 0, data is transferred from TDR to TSR, and serial transmission of the next frame is started. If the TDRE flag is set to 1, the TEND flag in SSR is set to 1, the MSB (bit 7) is sent, and the TxD pin maintains its state. If the TEIE bit in SCR is set to 1 at this time, a TEI interrupt request is generated. [4] After completion of serial transmission, the SCK pin is fixed high. Figure 13.17 shows an example of SCI operation in transmission. Page 490 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Transfer direction Serial clock Serial data Bit 0 Bit 1 Bit 7 Bit 0 Bit 1 Bit 6 Bit 7 TDRE TEND TXI interrupt request generated Data written to TDR TXI interrupt and TDRE flag request generated cleared to 0 in TXI interrupt service routine TEI interrupt request generated 1 frame Figure 13.17 Example of SCI Operation in Transmission Serial data reception (clocked synchronous mode): Figure 13.18 shows a sample flowchart for serial reception. The following procedure should be used for serial data reception. When changing the operating mode from asynchronous to clocked synchronous, be sure to check that the ORER, PER, and FER flags are all cleared to 0. The RDRF flag will not be set if the FER or PER flag is set to 1, and neither transmit nor receive operations will be possible. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 491 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) [1] Initialization Start reception [2] Read ORER flag in SSR Yes [3] ORER = 1 No Error processing (Continued below) Read RDRF flag in SSR [4] No RDRF = 1 Yes Read receive data in RDR, and clear RDRF flag in SSR to 0 No All data received? Yes Clear RE bit in SCR to 0 [5] [1] SCI initialization: The RxD pin is automatically designated as the receive data input pin. [2] [3] Receive error processing: If a receive error occurs, read the ORER flag in SSR , and after performing the appropriate error processing, clear the ORER flag to 0. Transfer cannot be resumed if the ORER flag is set to 1. [4] SCI status check and receive data read: Read SSR and check that the RDRF flag is set to 1, then read the receive data in RDR and clear the RDRF flag to 0. Transition of the RDRF flag from 0 to 1 can also be identified by an RXI interrupt. [5] Serial reception continuation procedure: To continue serial reception, before the MSB (bit 7) of the current frame is received, finish reading the RDRF flag, reading RDR, and clearing the RDRF flag to 0. The RDRF flag is cleared automatically when the DTC is activated by a receive data full interrupt (RXI) request and the RDR value is read. <End> [3] Error processing Overrun error processing Clear ORER flag in SSR to 0 <End> Figure 13.18 Sample Serial Reception Flowchart Page 492 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) In serial reception, the SCI operates as described below. [1] The SCI performs internal initialization in synchronization with serial clock input or output. [2] The received data is stored in RSR in LSB-to-MSB order. After reception, the SCI checks whether the RDRF flag is 0 and the receive data can be transferred from RSR to RDR. If this check is passed, the RDRF flag is set to 1, and the receive data is stored in RDR. If a receive error is detected in the error check, the operation is as shown in table 13.11. Neither transmit nor receive operations can be performed subsequently when a receive error has been found in the error check. [3] If the RIE bit in SCR is set to 1 when the RDRF flag changes to 1, a receive data full interrupt (RXI) request is generated. Also, if the RIE bit in SCR is set to 1 when the ORER flag changes to 1, a receive error interrupt (ERI) request is generated. Figure 13.19 shows an example of SCI operation in reception. Serial clock Serial data Bit 7 Bit 0 Bit 7 Bit 0 Bit 1 Bit 6 Bit 7 RDRF ORER RXI interrupt request generated RDR data read and RDRF flag cleared to 0 in RXI interrupt service routine RXI interrupt request generated ERI interrupt request generated by overrun error 1 frame Figure 13.19 Example of SCI Operation in Reception Simultaneous serial data transmission and reception (clocked synchronous mode): Figure 13.20 shows a sample flowchart for simultaneous serial transmit and receive operations. The following procedure should be used for simultaneous serial data transmit and receive operations. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 493 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Initialization [1] SCI initialization: [1] The TxD pin is designated as the transmit data output pin, and the RxD pin is designated as the receive data input pin, enabling simultaneous transmit and receive operations. Start transmission/reception Read TDRE flag in SSR [2] [2] SCI status check and transmit data write: Read SSR and check that the TDRE flag is set to 1, then write transmit data to TDR and clear the TDRE flag to 0. Transition of the TDRE flag from 0 to 1 can also be identified by a TXI interrupt. No TDRE = 1 Yes Write transmit data to TDR and clear TDRE flag in SSR to 0 [3] Receive error processing: If a receive error occurs, read the ORER flag in SSR , and after performing the appropriate error processing, clear the ORER flag to 0. Transmission/reception cannot be resumed if the ORER flag is set to 1. Read ORER flag in SSR ORER = 1 No Read RDRF flag in SSR Yes [3] Error processing [4] SCI status check and receive data read: Read SSR and check that the RDRF flag is set to 1, then read the receive data in RDR and clear the RDRF flag to 0. Transition of the RDRF flag from 0 to 1 can also be identified by an RXI interrupt. [4] No RDRF = 1 Yes [5] Serial transmission/reception Read receive data in RDR, and clear RDRF flag in SSR to 0 No All data received? [5] Yes Clear TE and RE bits in SCR to 0 <End> Note: When switching from transmit or receive operation to simultaneous transmit and receive operations, first clear the TE bit and RE bit to 0, then set both these bits to 1 simultaneously. continuation procedure: To continue serial transmission/ reception, before the MSB (bit 7) of the current frame is received, finish reading the RDRF flag, reading RDR, and clearing the RDRF flag to 0. Also, before the MSB (bit 7) of the current frame is transmitted, read 1 from the TDRE flag to confirm that writing is possible. Then write data to TDR and clear the TDRE flag to 0. Checking and clearing of the TDRE flag is automatic when the DTC is activated by a transmit data empty interrupt (TXI) request and data is written to TDR. Also, the RDRF flag is cleared automatically when the DTC is activated by a receive data full interrupt (RXI) request and the RDR value is read. Figure 13.20 Sample Flowchart of Simultaneous Serial Transmit and Receive Operations Page 494 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 13.4 Section 13 Serial Communication Interface (SCI) SCI Interrupts The SCI has four interrupt sources: the transmit-end interrupt (TEI) request, receive-error interrupt (ERI) request, receive-data-full interrupt (RXI) request, and transmit-data-empty interrupt (TXI) request. Table 13.12 shows the interrupt sources and their relative priorities. Individual interrupt sources can be enabled or disabled with the TIE, RIE, and TEIE bits in the SCR. Each kind of interrupt request is sent to the interrupt controller independently. When the TDRE flag in SSR is set to 1, a TXI interrupt request is generated. When the TEND flag in SSR is set to 1, a TEI interrupt request is generated. A TXI interrupt can activate the DTC to perform data transfer. The TDRE flag is cleared to 0 automatically when data transfer is performed by the DTC. The DTC cannot be activated by a TEI interrupt request. When the RDRF flag in SSR is set to 1, an RXI interrupt request is generated. When the ORER, PER, or FER flag in SSR is set to 1, an ERI interrupt request is generated. An RXI interrupt can activate the DTC to perform data transfer. The RDRF flag is cleared to 0 automatically when data transfer is performed by the DTC. The DTC cannot be activated by an ERI interrupt request. Table 13.12 SCI Interrupt Sources DTC Activation Channel Interrupt Source Description 0 ERI Interrupt due to receive error (ORER, FER, or PER) Not possible High RXI Interrupt due to receive data full state (RDRF) Possible TXI Interrupt due to transmit data empty state (TDRE) Possible TEI Interrupt due to transmission end (TEND) Not possible 1 ERI Interrupt due to receive error (ORER, FER, or PER) Not possible RXI Interrupt due to receive data full state (RDRF) Possible TXI Interrupt due to transmit data empty state (TDRE) Possible TEI Interrupt due to transmission end (TEND) Not possible 2 ERI (H8S/2648, RXI H8S/2648R, H8S/2647) TXI TEI Priority* Interrupt due to receive error (ORER, FER, or PER) Not possible Interrupt due to receive data full state (RDRF) Possible Interrupt due to transmit data empty state (TDRE) Possible Interrupt due to transmission end (TEND) Not possible Low Note: * This table shows the initial state immediately after a reset. Relative priorities among channels can be changed by means of the interrupt controller. A TEI interrupt is requested when the TEND flag is set to 1 while the TEIE bit is set to 1. The TEND flag is cleared at the same time as the TDRE flag. Consequently, if a TEI interrupt and a REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 495 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) TXI interrupt are requested simultaneously, the TXI interrupt may have priority for acceptance, with the result that the TDRE and TEND flags are cleared. Note that the TEI interrupt will not be accepted in this case. 13.5 Usage Notes The following points should be noted when using the SCI. Relation between Writes to TDR and the TDRE Flag The TDRE flag in SSR is a status flag that indicates that transmit data has been transferred from TDR to TSR. When the SCI transfers data from TDR to TSR, the TDRE flag is set to 1. Data can be written to TDR regardless of the state of the TDRE flag. However, if new data is written to TDR when the TDRE flag is cleared to 0, the data stored in TDR will be lost since it has not yet been transferred to TSR. It is therefore essential to check that the TDRE flag is set to 1 before writing transmit data to TDR. Operation when Multiple Receive Errors Occur Simultaneously If a number of receive errors occur at the same time, the state of the status flags in SSR is as shown in table 13.13. If there is an overrun error, data is not transferred from RSR to RDR, and the receive data is lost. Table 13.13 State of SSR Status Flags and Transfer of Receive Data SSR Status Flags RDRF ORER FER PER Receive Data Transfer RSR to RDR Receive Error Status 1 1 0 0 X Overrun error 0 0 1 0 Framing error 0 0 0 1 1 1 1 0 X Overrun error + framing error Parity error 1 1 0 1 X Overrun error + parity error 0 0 1 1 1 1 1 1 Framing error + parity error X Overrun error + framing error + parity error Legend: : Receive data is transferred from RSR to RDR. X : Receive data is not transferred from RSR to RDR. Page 496 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Break Detection and Processing (Asynchronous Mode Only): When framing error (FER) detection is performed, a break can be detected by reading the RxD pin value directly. In a break, the input from the RxD pin becomes all 0s, and so the FER flag is set, and the parity error flag (PER) may also be set. Note that, since the SCI continues the receive operation after receiving a break, even if the FER flag is cleared to 0, it will be set to 1 again. Sending a Break (Asynchronous Mode Only): The TxD pin has a dual function as an I/O port whose direction (input or output) is determined by DR and DDR. This can be used to send a break. Between serial transmission initialization and setting of the TE bit to 1, the mark state is replaced by the value of DR (the pin does not function as the TxD pin until the TE bit is set to 1). Consequently, DDR and DR for the port corresponding to the TxD pin are first set to 1. To send a break during serial transmission, first clear DR to 0, then clear the TE bit to 0. When the TE bit is cleared to 0, the transmitter is initialized regardless of the current transmission state, the TxD pin becomes an I/O port, and 0 is output from the TxD pin. Receive Error Flags and Transmit Operations (Clocked Synchronous Mode Only): Transmission cannot be started when a receive error flag (ORER, PER, or FER) is set to 1, even if the TDRE flag is cleared to 0. Be sure to clear the receive error flags to 0 before starting transmission. Note also that receive error flags cannot be cleared to 0 even if the RE bit is cleared to 0. Receive Data Sampling Timing and Reception Margin in Asynchronous Mode: In asynchronous mode, the SCI operates on a basic clock with a frequency of 16 times the transfer rate. In reception, the SCI samples the falling edge of the start bit using the basic clock, and performs internal synchronization. Receive data is latched internally at the rising edge of the 8th pulse of the basic clock. This is illustrated in figure 13.21. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 497 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) 16 clocks 8 clocks 0 7 15 0 7 15 0 Internal basic clock Receive data (RxD) Start bit D0 D1 Synchronization sampling timing Data sampling timing Figure 13.21 Receive Data Sampling Timing in Asynchronous Mode Thus the reception margin in asynchronous mode is given by formula (1) below. 1 M = | (0.5 - 2N ) - (L - 0.5) F - | D - 0.5 | N (1 + F) | x 100% ... Formula (1) Where M N D L F : Reception margin (%) : Ratio of bit rate to clock (N = 16) : Clock duty (D = 0 to 1.0) : Frame length (L = 9 to 12) : Absolute value of clock rate deviation Assuming values of F = 0 and D = 0.5 in formula (1), a reception margin of 46.875% is given by formula (2) below. When D = 0.5 and F = 0, M = (0.5 - 1 2 x 16 = 46.875% ) x 100% ... Formula (2) However, this is only the computed value, and a margin of 20% to 30% should be allowed in system design. Page 498 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Restrictions on Use of DTC * When an external clock source is used as the serial clock, the transmit clock should not be input until at least 5 clock cycles after TDR is updated by the DTC. Misoperation may occur if the transmit clock is input within 4 clocks after TDR is updated. (Figure 13.22) * When RDR is read by the DTC, be sure to set the activation source to the relevant SCI reception end interrupt (RXI). SCK t TDRE LSB Serial data D0 D1 D2 D3 D4 D5 D6 D7 Note: When operating on an external clock, set t >4 clocks. Figure 13.22 Example of Clocked Synchronous Transmission by DTC Operation in Case of Mode Transition * Transmission Operation should be stopped (by clearing TE, TIE, and TEIE to 0) before making a module stop mode, software standby mode, watch mode, subactive mode, or subsleep mode transition. TSR, TDR, and SSR are reset. The output pin states in module stop mode, software standby mode, watch mode, subactive mode, or subsleep mode depend on the port settings, and becomes high-level output after the relevant mode is cleared. If a transition is made during transmission, the data being transmitted will be undefined. When transmitting without changing the transmit mode after the relevant mode is cleared, transmission can be started by setting TE to 1 again, and performing the following sequence: SSR read TDR write TDRE clearance. To transmit with a different transmit mode after clearing the relevant mode, the procedure must be started again from initialization. Figure 13.23 shows a sample flowchart for mode transition during transmission. Port pin states are shown in figures 13.24 and 13.25. Operation should also be stopped (by clearing TE, TIE, and TEIE to 0) before making a transition from transmission by DTC transfer to module stop mode, software standby mode, watch mode, subacti\ve mode, or subsleep mode transition. To perform transmission with the DTC after the relevant mode is cleared, setting TE and TIE to 1 will set the TXI flag and start DTC transmission. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 499 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) * Reception Receive operation should be stopped (by clearing RE to 0) before making a module stop mode, software standby mode, watch mode, subactive mode, or subsleep mode transition. RSR, RDR, and SSR are reset. If a transition is made without stopping operation, the data being received will be invalid. To continue receiving without changing the reception mode after the relevant mode is cleared, set RE to 1 before starting reception. To receive with a different receive mode, the procedure must be started again from initialization. Figure 13.26 shows a sample flowchart for mode transition during reception. <Transmission> No All data transmitted? [1] Yes Read TEND flag in SSR No TEND = 1 Yes TE = 0 [1] Data being transmitted is interrupted. After exiting software standby mode, etc., normal CPU transmission is possible by setting TE to 1, reading SSR, writing TDR, and clearing TDRE to 0, but note that if the DTC has been activated, the remaining data in DTCRAM will be transmitted when TE and TIE are set to 1. [2] If TIE and TEIE are set to 1, clear them to 0 in the same way. [2] [3] Includes module stop mode. Transition to software standby mode, etc. [3] Exit from software standby mode, etc. Change operating mode? No Yes Initialization TE = 1 <Start of transmission> Figure 13.23 Sample Flowchart for Mode Transition during Transmission Page 500 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) End of transmission Start of transmission Transition to software standby Exit from software standby TE bit Port input/output SCK output pin TxD output pin Port input/output High output Port Start Stop Port input/output SCI TxD output Port SCI TxD output High output Figure 13.24 Asynchronous Transmission Using Internal Clock Start of transmission End of transmission Transition to software standby Exit from software standby TE bit Port input/output SCK output pin TxD output pin Port input/output Last TxD bit held Marking output Port SCI TxD output Port input/output Port High output* SCI TxD output Note: * Initialized by software standby. Figure 13.25 Synchronous Transmission Using Internal Clock REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 501 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) <Reception> Read RDRF flag in SSR RDRF = 1 No [1] [1] Receive data being received becomes invalid. [2] [2] Includes module stop mode. Yes Read receive data in RDR RE = 0 Transition to software standby mode, etc. Exit from software standby mode, etc. Change operating mode? No Yes Initialization RE = 1 <Start of reception> Figure 13.26 Sample Flowchart for Mode Transition during Reception Page 502 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) Switching from SCK Pin Function to Port Pin Function * Problem in Operation When switching the SCK pin function to the output port function (high-level output) by making the following settings while DDR = 1, DR = 1, C/A = 1, CKE1 = 0, CKE0 = 0, and TE = 1 (synchronous mode), low-level output occurs for one half-cycle. 1. End of serial data transmission 2. TE bit = 0 3. C/A bit = 0 ... switchover to port output 4. Occurrence of low-level output (see figure 13.27) Half-cycle low-level output SCK/port 1. End of transmission Data Bit 6 TE C/A 4. Low-level output Bit 7 2. TE = 0 3. C/A = 0 CKE1 CKE0 Figure 13.27 Operation when Switching from SCK Pin Function to Port Pin Function REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 503 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 13 Serial Communication Interface (SCI) * Sample Procedure for Avoiding Low-Level Output As this sample procedure temporarily places the SCK pin in the input state, the SCK/port pin should be pulled up beforehand with an external circuit. With DDR = 1, DR = 1, C/A = 1, CKE1 = 0, CKE0 = 0, and TE = 1, make the following settings in the order shown. 1. End of serial data transmission 2. TE bit = 0 3. CKE1 bit = 1 4. C/A bit = 0 ... switchover to port output 5. CKE1 bit = 0 High-level output SCK/port 1. End of transmission Data Bit 6 TE Bit 7 2. TE = 0 4. C/A = 0 C/A 3. CKE1 = 1 CKE1 5. CKE1 = 0 CKE0 Figure 13.28 Operation when Switching from SCK Pin Function to Port Pin Function (Example of Preventing Low-Level Output) Page 504 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface Section 14 Smart Card Interface 14.1 Overview SCI supports an IC card (Smart Card) interface conforming to ISO/IEC 7816-3 (Identification Card) as a serial communication interface extension function. Switching between the normal serial communication interface and the Smart Card interface is carried out by means of a register setting. 14.1.1 Features Features of the Smart Card interface supported by the H8S/2646 Group are as follows. * Asynchronous mode Data length: 8 bits Parity bit generation and checking Transmission of error signal (parity error) in receive mode Error signal detection and automatic data retransmission in transmit mode Direct convention and inverse convention both supported * On-chip baud rate generator allows any bit rate to be selected * Three interrupt sources Three interrupt sources (transmit data empty, receive data full, and transmit/receive error) that can issue requests independently The transmit data empty interrupt and receive data full interrupt can activate the data transfer controller (DTC) to execute data transfer REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 505 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface 14.1.2 Block Diagram Bus interface Figure 14.1 shows a block diagram of the Smart Card interface. Module data bus RDR RxD TxD RSR TDR SCMR SSR SCR SMR TSR BRR Baud rate generator Transmission/ reception control Parity generation Internal data bus /4 /16 /64 Clock Parity check SCK Legend: SCMR : Smart Card mode register RSR : Receive shift register RDR : Receive data register TSR : Transmit shift register TDR : Transmit data register SMR : Serial mode register SCR : Serial control register SSR : Serial status register BRR : Bit rate register TXI RXI ERI Figure 14.1 Block Diagram of Smart Card Interface Page 506 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 14.1.3 Section 14 Smart Card Interface Pin Configuration Table 14.1 shows the Smart Card interface pin configuration. Table 14.1 Smart Card Interface Pins Channel Pin Name 0 Serial clock pin 0 SCK0 I/O SCI0 clock input/output Receive data pin 0 RxD0 Input SCI0 receive data input Transmit data pin 0 TxD0 Output SCI0 transmit data output Serial clock pin 1 SCK1 I/O SCI1 clock input/output Receive data pin 1 RxD1 Input SCI1 receive data input Transmit data pin 1 TxD1 Output SCI1 transmit data output Serial clock pin 2 SCK2 I/O SCI2 clock input/output Receive data pin 2 RxD2 Input SCI2 receive data input Transmit data pin 2 TxD2 Output SCI2 transmit data output 1 2 (H8S/2648, H8S/2648R, H8S/2647) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Symbol I/O Function Page 507 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface 14.1.4 Register Configuration Table 14.2 shows the registers used by the Smart Card interface. Details of SMR, BRR, SCR, TDR, RDR, and MSTPCR are the same as for the normal SCI function: see the register descriptions in section 13, Serial Communication Interface (SCI). Table 14.2 Smart Card Interface Registers Channel Name Abbreviation R/W Initial Value Address* 0 Serial mode register 0 SMR0 R/W H'00 H'FF78 1 2 (H8S/2648, H8S/2648R, H8S/2647) All 1 Bit rate register 0 BRR0 R/W H'FF H'FF79 Serial control register 0 SCR0 R/W H'00 H'FF7A Transmit data register 0 TDR0 R/W H'FF H'FF7B Serial status register 0 SSR0 R/(W)* H'84 H'FF7C Receive data register 0 RDR0 R H'00 H'FF7D Smart card mode register 0 SCMR0 R/W H'F2 H'FF7E Serial mode register 1 SMR1 R/W H'00 H'FF80 Bit rate register 1 BRR1 R/W H'FF H'FF81 Serial control register 1 SCR1 R/W H'00 H'FF82 Transmit data register 1 TDR1 R/W Serial status register 1 SSR1 R/(W)* Receive data register 1 RDR1 Smart card mode register 1 2 H'FF H'FF83 H'84 H'FF84 R H'00 H'FF85 SCMR1 R/W H'F2 H'FF86 Serial mode register 2 SMR2 R/W H'00 H'FF88 Bit rate register 2 BRR2 R/W H'FF H'FF89 2 Serial control register 2 SCR2 R/W H'00 H'FF8A Transmit data register 2 TDR2 R/W H'FF H'FF8B Serial status register 2 SSR2 R/(W)* H'84 H'FF8C Receive data register 2 RDR2 R H'00 H'FF8D Smart card mode register 2 SCMR2 R/W H'F2 H'FF8E R/W H'FF H'FDE9 Module stop control register B MSTPCRB 2 Notes: 1. Lower 16 bits of the address. 2. Can only be written with 0 for flag clearing. Page 508 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 14.2 Section 14 Smart Card Interface Register Descriptions Registers added with the Smart Card interface and bits for which the function changes are described here. 14.2.1 Smart Card Mode Register (SCMR) Bit : 7 6 5 4 3 2 1 0 -- -- -- -- SDIR SINV -- SMIF Initial value : 1 1 1 1 0 0 1 0 R/W -- -- -- -- R/W R/W -- R/W : SCMR is an 8-bit readable/writable register that selects the Smart Card interface function. SCMR is initialized to H'F2 by a reset and in standby mode. Bits 7 to 4--Reserved: It is always read as 1 and cannot be modified. Bit 3--Smart Card Data Transfer Direction (SDIR): Selects the serial/parallel conversion format. Bit 3 SDIR Description 0 TDR contents are transmitted LSB-first (Initial value) Receive data is stored in RDR LSB-first 1 TDR contents are transmitted MSB-first Receive data is stored in RDR MSB-first REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 509 of 1126 Section 14 Smart Card Interface H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 2--Smart Card Data Invert (SINV): Specifies inversion of the data logic level. This function is used together with the SDIR bit for communication with an inverse convention card. The SINV bit does not affect the logic level of the parity bit. For parity-related setting procedures, see section 14.3.4, Register Settings. Bit 2 SINV Description 0 TDR contents are transmitted as they are (Initial value) Receive data is stored as it is in RDR 1 TDR contents are inverted before being transmitted Receive data is stored in inverted form in RDR Bit 1--Reserved: It is always read as 1 and cannot be modified. Bit 0--Smart Card Interface Mode Select (SMIF): Enables or disables the Smart Card interface function. Bit 0 SMIF Description 0 Smart Card interface function is disabled 1 Smart Card interface function is enabled Page 510 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 14.2.2 Section 14 Smart Card Interface Serial Status Register (SSR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 TDRE RDRF ORER ERS PER TEND MPB MPBT 1 0 0 0 0 1 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R R R/W Note: * Only 0 can be written, to clear these flags. Bit 4 of SSR has a different function in Smart Card interface mode. Coupled with this, the setting conditions for bit 2, TEND, are also different. Bits 7 to 5--Operate in the same way as for the normal SCI. For details, see section 13.2.7, Serial Status Register (SSR). Bit 4--Error Signal Status (ERS): In Smart Card interface mode, bit 4 indicates the status of the error signal sent back from the receiving end in transmission. Framing errors are not detected in Smart Card interface mode. Bit 4 ERS Description 0 Normal reception, with no error signal (Initial value) [Clearing conditions] 1 * Upon reset, and in standby mode or module stop mode * When 0 is written to ERS after reading ERS = 1 Error signal sent from receiver indicating detection of parity error [Setting condition] When the low level of the error signal is sampled Note: Clearing the TE bit in SCR to 0 does not affect the ERS flag, which retains its previous state. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 511 of 1126 Section 14 Smart Card Interface H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bits 3 to 0--Operate in the same way as for the normal SCI. For details, see section 13.2.7, Serial Status Register (SSR). However, the setting conditions for the TEND bit, are as shown below. Bit 2 TEND 0 1 Description Transmission is in progress [Clearing conditions] (Initial value) * When 0 is written to TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and write data to TDR Transmission has ended [Setting conditions] * Upon reset, and in standby mode or module stop mode * When the TE bit in SCR is 0 and the ERS bit is also 0 * When TDRE = 1 and ERS = 0 (normal transmission) 2.5 etu after transmission of a 1-byte serial character when GM = 0 and BLK = 0 * When TDRE = 1 and ERS = 0 (normal transmission) 1.5 etu after transmission of a 1-byte serial character when GM = 0 and BLK = 1 * When TDRE = 1 and ERS = 0 (normal transmission) 1.0 etu after transmission of a 1-byte serial character when GM = 1 and BLK = 0 * When TDRE = 1 and ERS = 0 (normal transmission) 1.0 etu after transmission of a 1-byte serial character when GM = 1 and BLK = 1 Note: etu: Elementary time unit (time for transfer of 1 bit) Page 512 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 14.2.3 Section 14 Smart Card Interface Serial Mode Register (SMR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 GM BLK PE O/E BCP1 BCP0 CKS1 CKS0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W Note: When the smart card interface is used, be sure to make the 1 setting shown for bit 5. The function of bits 7, 6, 3, and 2 of SMR changes in Smart Card interface mode. Bit 7--GSM Mode (GM): Sets the smart card interface function to GSM mode. This bit is cleared to 0 when the normal smart card interface is used. In GSM mode, this bit is set to 1, the timing of setting of the TEND flag that indicates transmission completion is advanced and clock output control mode addition is performed. The contents of the clock output control mode addition are specified by bits 1 and 0 of the serial control register (SCR). Bit 7 GM Description 0 Normal smart card interface mode operation 1 (Initial value) * TEND flag generation 12.5 etu (11.5 etu in block transfer mode) after beginning of start bit * Clock output ON/OFF control only GSM mode smart card interface mode operation * TEND flag generation 11.0 etu after beginning of start bit * High/low fixing control possible in addition to clock output ON/OFF control (set by SCR) Note: etu: Elementary time unit (time for transfer of 1 bit) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 513 of 1126 Section 14 Smart Card Interface H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 6--Block Transfer Mode (BLK): Selects block transfer mode. Bit 6 BLK Description 0 Normal Smart Card interface mode operation 1 * Error signal transmission/detection and automatic data retransmission performed * TXI interrupt generated by TEND flag * TEND flag set 12.5 etu after start of transmission (11.0 etu in GSM mode) Block transfer mode operation * Error signal transmission/detection and automatic data retransmission not performed * TXI interrupt generated by TDRE flag * TEND flag set 11.5 etu after start of transmission (11.0 etu in GSM mode) Note: etu : Elementury time unit (time for transfer of 1 bit) Bits 3 and 2--Basic Clock Pulse 1 and 0 (BCP1, BCP0): These bits specify the number of basic clock periods in a 1-bit transfer interval on the Smart Card interface. Bit 3 BCP1 Bit 2 BCP0 Description 0 1 32 clock periods 0 64 clock periods 1 372 clock periods 0 256 clock periods 1 (Initial value) Bits 5, 4, 1, and 0: Operate in the same way as for the normal SCI. For details, see section 13.2.5, Serial Mode Register (SMR). Page 514 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 14.2.4 Section 14 Smart Card Interface Serial Control Register (SCR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 TIE RIE TE RE MPIE TEIE CKE1 CKE0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W In smart card interface mode, the function of bits 1 and 0 of SCR changes when bit 7 of the serial mode register (SMR) is set to 1. Bits 7 to 2--Operate in the same way as for the normal SCI. For details, see section 13.2.6, Serial Control Register (SCR). Bits 1 and 0--Clock Enable 1 and 0 (CKE1, CKE0): These bits are used to select the SCI clock source and enable or disable clock output from the SCK pin. In smart card interface mode, in addition to the normal switching between clock output enabling and disabling, the clock output can be specified as to be fixed high or low. SCMR SMR SMIF C/A, GM 0 See the SCI 1 SCR Setting CKE1 CKE0 SCK Pin Function 0 0 0 Operates as port I/O pin 1 0 0 1 Outputs clock as SCK output pin 1 1 0 0 Operates as SCK output pin, with output fixed low 1 1 0 1 Outputs clock as SCK output pin 1 1 1 0 Operates as SCK output pin, with output fixed high 1 1 1 1 Outputs clock as SCK output pin REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 515 of 1126 Section 14 Smart Card Interface 14.3 Operation 14.3.1 Overview H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM The main functions of the Smart Card interface are as follows. * One frame consists of 8-bit data plus a parity bit. * In transmission, a guard time of at least 2 etu (Elementary time unit: the time for transfer of 1 bit) is left between the end of the parity bit and the start of the next frame. * If a parity error is detected during reception, a low error signal level is output for one etu period, 10.5 etu after the start bit. * If the error signal is sampled during transmission, the same data is transmitted automatically after the elapse of 2 etu or longer. (except in block transfer mode) * Only asynchronous communication is supported; there is no clocked synchronous communication function. 14.3.2 Pin Connections Figure 14.2 shows a schematic diagram of Smart Card interface related pin connections. In communication with an IC card, since both transmission and reception are carried out on a single data transmission line, the TxD pin and RxD pin should be connected with the LSI pin. The data transmission line should be pulled up to the VCC power supply with a resistor. When the clock generated on the Smart Card interface is used by an IC card, the SCK pin output is input to the CLK pin of the IC card. No connection is needed if the IC card uses an internal clock. LSI port output is used as the reset signal. Other pins must normally be connected to the power supply or ground. Page 516 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface VCC TxD I/O RxD SCK Rx (port) H8S/2646 Group Data line Clock line Reset line CLK RST IC card Connected equipment Figure 14.2 Schematic Diagram of Smart Card Interface Pin Connections Note: If an IC card is not connected, and the TE and RE bits are both set to 1, closed transmission/reception is possible, enabling self-diagnosis to be carried out. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 517 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface 14.3.3 Data Format Normal Transfer Mode: Figure 14.3 shows the normal Smart Card interface data format. In reception in this mode, a parity check is carried out on each frame, and if an error is detected an error signal is sent back to the transmitting end, and retransmission of the data is requested. If an error signal is sampled during transmission, the same data is retransmitted. When there is no parity error Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp D7 Dp Transmitting station output When a parity error occurs Ds D0 D1 D2 D3 D4 D5 D6 DE Transmitting station output Legend: Ds D0 to D7 Dp DE Receiving station output : Start bit : Data bits : Parity bit : Error signal Figure 14.3 Normal Smart Card Interface Data Format The operation sequence is as follows. [1] When the data line is not in use it is in the high-impedance state, and is fixed high with a pullup resistor. [2] The transmitting station starts transfer of one frame of data. The data frame starts with a start bit (Ds, low-level), followed by 8 data bits (D0 to D7) and a parity bit (Dp). [3] With the Smart Card interface, the data line then returns to the high-impedance state. The data line is pulled high with a pull-up resistor. Page 518 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface [4] The receiving station carries out a parity check. If there is no parity error and the data is received normally, the receiving station waits for reception of the next data. If a parity error occurs, however, the receiving station outputs an error signal (DE, low-level) to request retransmission of the data. After outputting the error signal for the prescribed length of time, the receiving station places the signal line in the high-impedance state again. The signal line is pulled high again by a pull-up resistor. [5] If the transmitting station does not receive an error signal, it proceeds to transmit the next data frame. If it does receive an error signal, however, it returns to step [2] and retransmits the erroneous data. Block Transfer Mode: The operation sequence in block transfer mode is as follows. [1] When the data line in not in use it is in the high-impedance state, and is fixed high with a pullup resistor. [2] The transmitting station starts transfer of one frame of data. The data frame starts with a start bit (Ds, low-level), followed by 8 data bits (D0 to D7) and a parity bit (Dp). [3] With the Smart Card interface, the data line then returns to the high-impedance state. The data line is pulled high with a pull-up resistor. [4] After reception, a parity error check is carried out, but an error signal is not output even if an error has occurred. When an error occurs reception cannot be continued, so the error flag should be cleared to 0 before the parity bit of the next frame is received. [5] The transmitting station proceeds to transmit the next data frame. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 519 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface 14.3.4 Register Settings Table 14.3 shows a bit map of the registers used by the smart card interface. Bits indicated as 0 or 1 must be set to the value shown. The setting of other bits is described below. Table 14.3 Smart Card Interface Register Settings Bit Register Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 SMR GM BLK 1 O/E BCP1 BCP0 CKS1 CKS0 BRR BRR7 BRR6 BRR5 BRR4 BRR3 BRR2 BRR0 SCR TIE RIE TE RE 0 0 BRR1 CKE1* TDR TDR7 TDR6 TDR5 TDR4 TDR3 TDR2 TDR1 TDR0 SSR TDRE RDRF ORER ERS PER TEND 0 0 RDR RDR7 RDR6 RDR5 RDR4 RDR3 RDR2 RDR1 RDR0 SCMR -- -- -- -- SDIR SINV -- SMIF CKE0 Legend: --: Unused bit. Note: * The CKE1 bit must be cleared to 0 when the GM bit in SMR is cleared to 0. SMR Setting: The GM bit is cleared to 0 in normal smart card interface mode, and set to 1 in GSM mode. The O/E bit is cleared to 0 if the IC card is of the direct convention type, and set to 1 if of the inverse convention type. Bits CKS1 and CKS0 select the clock source of the on-chip baud rate generator. Bits BCP1 and BCP0 select the number of basic clock periods in a 1-bit transfer interval. For details, see section 14.3.5, Clock. The BLK bit is cleared to 0 in normal smart card interface mode, and set to 1 in block transfer mode. BRR Setting: BRR is used to set the bit rate. See section 14.3.5, Clock, for the method of calculating the value to be set. SCR Setting: The function of the TIE, RIE, TE, and RE bits is the same as for the normal SCI. For details, see section 13, Serial Communication Interface (SCI). Page 520 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface Bits CKE1 and CKE0 specify the clock output. When the GM bit in SMR is cleared to 0, set these bits to B'00 if a clock is not to be output, or to B'01 if a clock is to be output. When the GM bit in SMR is set to 1, clock output is performed. The clock output can also be fixed high or low. Smart Card Mode Register (SCMR) Setting: The SDIR bit is cleared to 0 if the IC card is of the direct convention type, and set to 1 if of the inverse convention type. The SINV bit is cleared to 0 if the IC card is of the direct convention type, and set to 1 if of the inverse convention type. The SMIF bit is set to 1 in the case of the Smart Card interface. Examples of register settings and the waveform of the start character are shown below for the two types of IC card (direct convention and inverse convention). * Direct convention (SDIR = SINV = O/E = 0) (Z) A Z Z A Z Z Z A A Z Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp (Z) State With the direct convention type, the logic 1 level corresponds to state Z and the logic 0 level to state A, and transfer is performed in LSB-first order. The start character data above is H'3B. The parity bit is 1 since even parity is stipulated for the Smart Card. * Inverse convention (SDIR = SINV = O/E = 1) (Z) A Z Z A A A A A A Z Ds D7 D6 D5 D4 D3 D2 D1 D0 Dp (Z) State With the inverse convention type, the logic 1 level corresponds to state A and the logic 0 level to state Z, and transfer is performed in MSB-first order. The start character data above is H'3F. The parity bit is 0, corresponding to state Z, since even parity is stipulated for the Smart Card. With the H8S/2646 Group, inversion specified by the SINV bit applies only to the data bits, D7 to D0. For parity bit inversion, the O/E bit in SMR is set to odd parity mode (the same applies to both transmission and reception). REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 521 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface 14.3.5 Clock Only an internal clock generated by the on-chip baud rate generator can be used as the transmit/receive clock for the smart card interface. The bit rate is set with BRR and the CKS1, CKS0, BCP1 and BCP0 bits in SMR. The formula for calculating the bit rate is as shown below. Table 14.5 shows some sample bit rates. If clock output is selected by setting CKE0 to 1, a clock is output from the SCK pin. The clock frequency is determined by the bit rate and the setting of bits BCP1 and BCP0. B= Sx2 2n+1 x 10 6 x (N + 1) Where: N = Value set in BRR (0 N 255) B = Bit rate (bit/s) = Operating frequency (MHz) n = See table 14.4 S = Number of internal clocks in 1-bit period, set by BCP1 and BCP0 Table 14.4 Correspondence between n and CKS1, CKS0 n CKS1 CKS0 0 0 0 1 1 2 1 3 0 1 Table 14.5 Examples of Bit Rate B (bit/s) for Various BRR Settings (When n = 0 and S = 372) (MHz) N 10.00 10.714 13.00 14.285 16.00 18.00 20.00 0 13441 14400 17473 19200 21505 24194 26882 1 6720 7200 8737 9600 10753 12097 13441 2 4480 4800 5824 6400 7168 8065 8961 Note: Bit rates are rounded to the nearest whole number. Page 522 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface The method of calculating the value to be set in the bit rate register (BRR) from the operating frequency and bit rate, on the other hand, is shown below. N is an integer, 0 N 255, and the smaller error is specified. N= Sx2 x 10 - 1 6 2n+1 xB Table 14.6 Examples of BRR Settings for Bit Rate B (bit/s) (When n = 0 and S = 372) (MHz) 7.1424 10.00 10.7136 13.00 14.2848 16.00 18.00 20.00 bit/s N Error N Error N Error N Error N Error N Error N Error N Error 9600 0 0.00 1 30 1 25 1 8.99 1 0.00 1 12.01 2 15.99 2 6.60 Table 14.7 Maximum Bit Rate at Various Frequencies (Smart Card Interface Mode) (When S = 372) (MHz) Maximum Bit Rate (bit/s) N n 7.1424 9600 0 0 10.00 13441 0 0 10.7136 14400 0 0 13.00 17473 0 0 14.2848 19200 0 0 16.00 21505 0 0 18.00 24194 0 0 20.00 26882 0 0 The bit rate error is given by the following formula: Error (%) = ( REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Sx2 2n+1 x B x (N + 1) x 10 - 1) x 100 6 Page 523 of 1126 Section 14 Smart Card Interface 14.3.6 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Data Transfer Operations Initialization: Before transmitting and receiving data, initialize the SCI as described below. Initialization is also necessary when switching from transmit mode to receive mode, or vice versa. [1] Clear the TE and RE bits in SCR to 0. [2] Clear the error flags ERS, PER, and ORER in SSR to 0. [3] Set the GM, BLK, O/E, BCP1, BCP0, CKS1, CKS0 bits in SMR. Set the PE bit to 1. [4] Set the SMIF, SDIR, and SINV bits in SCMR. When the SMIF bit is set to 1, the TxD and RxD pins are both switched from ports to SCI pins, and are placed in the high-impedance state. [5] Set the value corresponding to the bit rate in BRR. [6] Set the CKE0 and CKE1 bits in SCR. Clear the TIE, RIE, TE, RE, MPIE, and TEIE bits to 0. If the CKE0 bit is set to 1, the clock is output from the SCK pin. [7] Wait at least one bit interval, then set the TIE, RIE, TE, and RE bits in SCR. Do not set the TE bit and RE bit at the same time, except for self-diagnosis. Page 524 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface Serial Data Transmission: As data transmission in smart card mode involves error signal sampling and retransmission processing, the processing procedure is different from that for the normal SCI. Figure 14.4 shows a flowchart for transmitting, and figure 14.5 shows the relation between a transmit operation and the internal registers. [1] Perform Smart Card interface mode initialization as described above in Initialization. [2] Check that the ERS error flag in SSR is cleared to 0. [3] Repeat steps [2] and [3] until it can be confirmed that the TEND flag in SSR is set to 1. [4] Write the transmit data to TDR, clear the TDRE flag to 0, and perform the transmit operation. The TEND flag is cleared to 0. [5] When transmitting data continuously, go back to step [2]. [6] To end transmission, clear the TE bit to 0. With the above processing, interrupt servicing or data transfer by the DTC is possible. If transmission ends and the TEND flag is set to 1 while the TIE bit is set to 1 and interrupt requests are enabled, a transmit data empty interrupt (TXI) request will be generated. If an error occurs in transmission and the ERS flag is set to 1 while the RIE bit is set to 1 and interrupt requests are enabled, a transfer error interrupt (ERI) request will be generated. The timing for setting the TEND flag depends on the value of the GM bit in SMR. The TEND flag set timing is shown in figure 14.6. If the DTC is activated by a TXI request, the number of bytes set in the DTC can be transmitted automatically, including automatic retransmission. For details, see Interrupt Operation and Data Transfer Operation by DTC below. Note: For block transfer mode, see section 13.3.2, Operation in Asynchronous Mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 525 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface Start Initialization Start transmission ERS = 0? No Yes Error processing No TEND = 1? Yes Write data to TDR, and clear TDRE flag in SSR to 0 No All data transmitted? Yes No ERS = 0? Yes Error processing No TEND = 1? Yes Clear TE bit to 0 End Figure 14.4 Example of Transmission Processing Flow Page 526 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface TSR (shift register) TDR (1) Data write Data 1 (2) Transfer from TDR to TSR Data 1 (3) Serial data output Data 1 Data 1 ; Data remains in TDR Data 1 I/O signal line output In case of normal transmission: TEND flag is set In case of transmit error: ERS flag is set Steps (2) and (3) above are repeated until the TEND flag is set Note: When the ERS flag is set, it should be cleared until transfer of the last bit (D7 in LSB-first transmission, D0 in MSB-first transmission) of the next transfer data to be transmitted has been completed. Figure 14.5 Relation Between Transmit Operation and Internal Registers I/O data Ds TXI (TEND interrupt) When GM = 0 When GM = 1 Legend: Ds D0 to D7 Dp DE Note : etu D0 D1 D2 D3 D4 D5 D6 D7 Dp DE Guard time 12.5 etu 11.0 etu : Start bit : Data bits : Parity bit : Error signal : Elementary time unit (time for fransfer of 1 bit) Figure 14.6 TEND Flag Generation Timing in Transmission Operation REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 527 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface Serial Data Reception (Except Block Transfer Mode): Data reception in Smart Card mode uses the same processing procedure as for the normal SCI. Figure 14.7 shows an example of the transmission processing flow. [1] Perform Smart Card interface mode initialization as described above in Initialization. [2] Check that the ORER flag and PER flag in SSR are cleared to 0. If either is set, perform the appropriate receive error processing, then clear both the ORER and the PER flag to 0. [3] Repeat steps [2] and [3] until it can be confirmed that the RDRF flag is set to 1. [4] Read the receive data from RDR. [5] When receiving data continuously, clear the RDRF flag to 0 and go back to step [2]. [6] To end reception, clear the RE bit to 0. Start Initialization Start reception ORER = 0 and PER = 0 No Yes Error processing No RDRF=1? Yes Read RDR and clear RDRF flag in SSR to 0 No All data received? Yes Clear RE bit to 0 Figure 14.7 Example of Reception Processing Flow Page 528 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface With the above processing, interrupt servicing or data transfer by the DTC is possible. If reception ends and the RDRF flag is set to 1 while the RIE bit is set to 1 and interrupt requests are enabled, a receive data full interrupt (RXI) request will be generated. If an error occurs in reception and either the ORER flag or the PER flag is set to 1, a transfer error interrupt (ERI) request will be generated. If the DTC is activated by an RXI request, the receive data in which the error occurred is skipped, and only the number of bytes of receive data set in the DTC are transferred. For details, see Interrupt Operation and Data Transfer Operation by DTC followings. If a parity error occurs during reception and the PER is set to 1, the received data is still transferred to RDR, and therefore this data can be read. Note: For block transfer mode, see section 13.3.2, Operation in Asynchronous Mode. Mode Switching Operation: When switching from receive mode to transmit mode, first confirm that the receive operation has been completed, then start from initialization, clearing RE bit to 0 and setting TE bit to 1. The RDRF flag or the PER and ORER flags can be used to check that the receive operation has been completed. When switching from transmit mode to receive mode, first confirm that the transmit operation has been completed, then start from initialization, clearing TE bit to 0 and setting RE bit to 1. The TEND flag can be used to check that the transmit operation has been completed. Fixing Clock Output Level: When the GM bit in SMR is set to 1, the clock output level can be fixed with bits CKE1 and CKE0 in SCR. At this time, the minimum clock pulse width can be made the specified width. Figure 14.8 shows the timing for fixing the clock output level. In this example, GM is set to 1, CKE1 is cleared to 0, and the CKE0 bit is controlled. Specified pulse width Specified pulse width SCK SCR write (CKE0 = 0) SCR write (CKE0 = 1) Figure 14.8 Timing for Fixing Clock Output Level REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 529 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface Interrupt Operation (Except Block Transfer Mode): There are three interrupt sources in smart card interface mode: transmit data empty interrupt (TXI) requests, transfer error interrupt (ERI) requests, and receive data full interrupt (RXI) requests. The transmit end interrupt (TEI) request is not used in this mode. When the TEND flag in SSR is set to 1, a TXI interrupt request is generated. When the RDRF flag in SSR is set to 1, an RXI interrupt request is generated. When any of flags ORER, PER, and ERS in SSR is set to 1, an ERI interrupt request is generated. The relationship between the operating states and interrupt sources is shown in table 14.8. Note: For block transfer mode, see section 13.4, SCI Interrupts. Table 14.8 Smart Card Mode Operating States and Interrupt Sources Operating State Transmit Mode Receive Mode Normal operation Flag Enable Bit Interrupt Source DTC Activation TEND TIE TXI Possible Error ERS RIE ERI Not possible Normal operation RDRF RIE RXI Possible Error PER, ORER RIE ERI Not possible Data Transfer Operation by DTC: In smart card mode, as with the normal SCI, transfer can be carried out using the DTC. In a transmit operation, the TDRE flag is also set to 1 at the same time as the TEND flag in SSR, and a TXI interrupt is generated. If the TXI request is designated beforehand as a DTC activation source, the DTC will be activated by the TXI request, and transfer of the transmit data will be carried out. The TDRE and TEND flags are automatically cleared to 0 when data transfer is performed by the DTC. In the event of an error, the SCI retransmits the same data automatically. During this period, TEND remains cleared to 0 and the DTC is not activated. Therefore, the SCI and DTC will automatically transmit the specified number of bytes, including retransmission in the event of an error. However, the ERS flag is not cleared automatically when an error occurs, and so the RIE bit should be set to 1 beforehand so that an ERI request will be generated in the event of an error, and the ERS flag will be cleared. When performing transfer using the DTC, it is essential to set and enable the DTC before carrying out SCI setting. For details of the DTC setting procedures, see section 8, Data Transfer Controller (DTC). Page 530 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface In a receive operation, an RXI interrupt request is generated when the RDRF flag in SSR is set to 1. If the RXI request is designated beforehand as a DTC activation source, the DTC will be activated by the RXI request, and transfer of the receive data will be carried out. The RDRF flag is cleared to 0 automatically when data transfer is performed by the DTC. If an error occurs, an error flag is set but the RDRF flag is not. Consequently, the DTC is not activated, but instead, an ERI interrupt request is sent to the CPU. Therefore, the error flag should be cleared. Note: For block transfer mode, see section 13.4, SCI Interrupts. 14.3.7 Operation in GSM Mode Switching the Mode: When switching between smart card interface mode and software standby mode, the following switching procedure should be followed in order to maintain the clock duty. * When changing from smart card interface mode to software standby mode [1] Set the data register (DR) and data direction register (DDR) corresponding to the SCK pin to the value for the fixed output state in software standby mode. [2] Write 0 to the TE bit and RE bit in the serial control register (SCR) to halt transmit/receive operation. At the same time, set the CKE1 bit to the value for the fixed output state in software standby mode. [3] Write 0 to the CKE0 bit in SCR to halt the clock. [4] Wait for one serial clock period. During this interval, clock output is fixed at the specified level, with the duty preserved. [5] Make the transition to the software standby state. * When returning to smart card interface mode from software standby mode [6] Exit the software standby state. [7] Write 1 to the CKE0 bit in SCR and output the clock. Signal generation is started with the normal duty. Software standby Normal operation [1] [2] [3] [4] [5] Normal operation [6] [7] Figure 14.9 Clock Halt and Restart Procedure REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 531 of 1126 Section 14 Smart Card Interface H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Powering On: To secure the clock duty from power-on, the following switching procedure should be followed. [1] The initial state is port input and high impedance. Use a pull-up resistor or pull-down resistor to fix the potential. [2] Fix the SCK pin to the specified output level with the CKE1 bit in SCR. [3] Set SMR and SCMR, and switch to smart card mode operation. [4] Set the CKE0 bit in SCR to 1 to start clock output. 14.3.8 Operation in Block Transfer Mode Operation in block transfer mode is the same as in SCI asynchronous mode, except for the following points. For details, see section 13.3.2, Operation in Asynchronous Mode. Data Format: The data format is 8 bits with parity. There is no stop bit, but there is a 2-bit (1-bit or more in reception) error guard time. Also, except during transmission (with start bit, data bits, and parity bit), the transmission pins go to the high-impedance state, so the signal lines must be fixed high with a pull-up resistor. Transmit/Receive Clock: Only an internal clock generated by the on-chip baud rate generator can be used as the transmit/receive clock. The number of basic clock periods in a 1-bit transfer interval can be set to 32, 64, 372, or 256 with bits BCP1 and BCP0. For details, see section 14.3.5, Clock. ERS (FER) Flag: As with the normal Smart Card interface, the ERS flag indicates the error signal status, but since error signal transmission and reception is not performed, this flag is always cleared to 0. Page 532 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 14.4 Section 14 Smart Card Interface Usage Notes The following points should be noted when using the SCI as a Smart Card interface. Receive Data Sampling Timing and Reception Margin in Smart Card Interface Mode: In Smart Card interface mode, the SCI operates on a basic clock with a frequency of 32, 64, 372, or 256 times the transfer rate (as determined by bits BCP1 and BCP0). In reception, the SCI samples the falling edge of the start bit using the basic clock, and performs internal synchronization. Receive data is latched internally at the rising edge of the 16th, 32nd, 186th, or 128th pulse of the basic clock. Figure 14.10 shows the receive data sampling timing when using a clock of 372 times the transfer rate. 372 clocks 186 clocks 0 185 185 371 0 371 0 Internal basic clock Receive data (RxD) Start bit D0 D1 Synchronization sampling timing Data sampling timing Figure 14.10 Receive Data Sampling Timing in Smart Card Mode (Using Clock of 372 Times the Transfer Rate) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 533 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface Thus the reception margin in asynchronous mode is given by the following formula. Formula for reception margin in smart card interface mode 1 M = (0.5 - ) - (L - 0.5) F - 2N D - 0.5 (1 + F) x 100% N Where M: Reception margin (%) N: Ratio of bit rate to clock (N = 32, 64, 372, and 256) D: Clock duty (D = 0 to 1.0) L: Frame length (L = 10) F: Absolute value of clock frequency deviation Assuming values of F = 0, D = 0.5 and N = 372 in the above formula, the reception margin formula is as follows. When D = 0.5 and F = 0, M = (0.5 - 1/2 x 372) x 100% = 49.866% Page 534 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface Retransfer Operations (Except Block Transfer Mode): Retransfer operations are performed by the SCI in receive mode and transmit mode as described below. * Retransfer operation when SCI is in receive mode Figure 14.11 illustrates the retransfer operation when the SCI is in receive mode. [1] If an error is found when the received parity bit is checked, the PER bit in SSR is automatically set to 1. If the RIE bit in SCR is enabled at this time, an ERI interrupt request is generated. The PER bit in SSR should be kept cleared to 0 until the next parity bit is sampled. [2] The RDRF bit in SSR is not set for a frame in which an error has occurred. [3] If no error is found when the received parity bit is checked, the PER bit in SSR is not set to 1. [4] If no error is found when the received parity bit is checked, the receive operation is judged to have been completed normally, and the RDRF flag in SSR is automatically set to 1. If the RIE bit in SCR is enabled at this time, an RXI interrupt request is generated. If DTC data transfer by an RXI source is enabled, the contents of RDR can be read automatically. When the RDR data is read by the DTC, the RDRF flag is automatically cleared to 0. [5] When a normal frame is received, the pin retains the high-impedance state at the timing for error signal transmission. nth transfer frame Transfer frame n+1 Retransferred frame Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp DE (DE) Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp Ds D0 D1 D2 D3 D4 RDRF [2] [4] [1] [3] PER Figure 14.11 Retransfer Operation in SCI Receive Mode REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 535 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 14 Smart Card Interface * Retransfer operation when SCI is in transmit mode Figure 14.12 illustrates the retransfer operation when the SCI is in transmit mode. [6] If an error signal is sent back from the receiving end after transmission of one frame is completed, the ERS bit in SSR is set to 1. If the RIE bit in SCR is enabled at this time, an ERI interrupt request is generated. The ERS bit in SSR should be kept cleared to 0 until the next parity bit is sampled. [7] The TEND bit in SSR is not set for a frame for which an error signal indicating an abnormality is received. [8] If an error signal is not sent back from the receiving end, the ERS bit in SSR is not set. [9] If an error signal is not sent back from the receiving end, transmission of one frame, including a retransfer, is judged to have been completed, and the TEND bit in SSR is set to 1. If the TIE bit in SCR is enabled at this time, a TXI interrupt request is generated. If data transfer by the DTC by means of the TXI source is enabled, the next data can be written to TDR automatically. When data is written to TDR by the DTC, the TDRE bit is automatically cleared to 0. nth transfer frame Transfer frame n+1 Retransferred frame Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp DE Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp (DE) Ds D0 D1 D2 D3 D4 TDRE Transfer to TSR from TDR Transfer to TSR from TDR Transfer to TSR from TDR TEND [7] [9] FER/ERS [6] [8] Figure 14.12 Retransfer Operation in SCI Transmit Mode Page 536 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Section 15 Controller Area Network (HCAN) 15.1 Overview The HCAN is a module for controlling a controller area network (CAN) for realtime communication in vehicular and industrial equipment systems, etc. The H8S/2646 Group has a single-channel on-chip HCAN module. Reference: BOSCH CAN Specification Version 2.0 1991, Robert Bosch GmbH 15.1.1 Features * CAN version: Bosch 2.0B active compatible Communication systems: NRZ (Non-Return to Zero) system (with bit-stuffing function) Broadcast communication system Transmission path: Bidirectional 2-wire serial communication Communication speed: Max. 1 Mbps Data length: 0 to 8 bytes * Number of channels: 1 * Data buffers: 16 (one receive-only buffer and 15 buffers settable for transmission/reception) * Data transmission: Choice of two methods: Mailbox (buffer) number order (low-to-high) Message priority (identifier) high-to-low order * Data reception: Two methods: Message identifier match (transmit/receive-setting buffers) Reception with message identifier masked (receive-only) * CPU interrupts: Two interrupt vectors: Error interrupt Reset processing interrupt Message reception interrupt (mailbox 1 to 15) Message reception interrupt (mailbox 0) Message transmission interrupt * HCAN operating modes: Support for various modes: Hardware reset Software reset REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 537 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Normal status (error-active, error-passive) Bus off status HCAN configuration mode HCAN sleep mode HCAN halt mode * Other features: DTC can be activated by message reception mailbox (HCAN mailbox 0 only) 15.1.2 Block Diagram Figure 15.1 shows a block diagram of the HCAN. MBI Message buffer Peripheral data bus Peripheral address bus HCAN Mailboxes Message control Message data MC0-MC15, MD0-MD15 LAFM (CDLC) CAN Data Link Controller Bosch CAN 2.0B active Tx buffer MPI Microprocessor interface Rx buffer HTxD HRxD CPU interface Control register Status register Figure 15.1 HCAN Block Diagram Message Buffer Interface (MBI): The MBI, consisting of mailboxes and a local acceptance filter mask (LAFM), stores CAN transmit/receive messages (identifiers, data, etc.) Transmit messages are written by the CPU. For receive messages, the data received by the CDLC is stored automatically. Microprocessor Interface (MPI): The MPI, consisting of a bus interface, control register, status register, etc., controls HCAN internal data, statuses, and so forth. CAN Data Link Controller (CDLC): The CDLC performs transmission and reception of messages conforming to the Bosch CAN Ver. 2.0B active standard (data frames, remote frames, error frames, overload frames, inter-frame spacing), as well as CRC checking, bus arbitration, and other functions. Page 538 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 15.1.3 Section 15 Controller Area Network (HCAN) Pin Configuration Table 15.1 shows the HCAN's pins. When using HCAN pins, settings must be made in the HCAN configuration mode (during initialization: MCR0 = 1 and GSR3 = 1). Table 15.1 HCAN Pins Name Abbreviation Input/Output Function HCAN transmit data pin HTxD Output CAN bus transmission pin HCAN receive data pin HRxD Input CAN bus reception pin A bus driver is necessary between the pins and the CAN bus. A HA13721 compatible model is recommended. 15.1.4 Register Configuration Table 15.2 lists the HCAN's registers. Table 15.2 HCAN Registers Name Abbreviation R/W Initial Value Address* Access Size Master control register MCR R/W H'01 H'F800 8 bits General status register GSR R/W H'0C H'F801 8 bits 16 bits Bit configuration register BCR R/W H'0000 H'F802 8/16 bits Mailbox configuration register MBCR R/W H'0100 H'F804 8/16 bits Transmit wait register TXPR R/W H'0000 H'F806 8/16 bits Transmit wait cancel register TXCR R/W H'0000 H'F808 8/16 bits Transmit acknowledge register TXACK R/W H'0000 H'F80A 8/16 bits Abort acknowledge register ABACK R/W H'0000 H'F80C 8/16 bits Receive complete register RXPR R/W H'0000 H'F80E 8/16 bits Remote request register RFPR R/W H'0000 H'F810 8/16 bits Interrupt register IRR R/W H'0100 H'F812 8/16 bits Mailbox interrupt mask register MBIMR R/W H'FFFF H'F814 8/16 bits Interrupt mask register IMR R/W H'FEFF H'F816 8/16 bits Receive error counter REC R H'00 H'F818 8 bits Transmit error counter TEC R H'00 H'F819 8 bits Unread message status register UMSR R/W H'0000 H'F81A 8/16 bits REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 16 bits Page 539 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Name Abbreviation R/W Initial Value Address* Access Size Local acceptance filter mask L LAFML R/W H'0000 H'F81C 8/16 bits Local acceptance filter mask H LAFMH R/W H'0000 H'F81E 8/16 bits Message control 0 [1:8] MC0 [1:8] R/W Undefined H'F820 8/16 bits Message control 1 [1:8] MC1 [1:8] R/W Undefined H'F828 8/16 bits Message control 2 [1:8] MC2 [1:8] R/W Undefined H'F830 8/16 bits Message control 3 [1:8] MC3 [1:8] R/W Undefined H'F838 8/16 bits Message control 4 [1:8] MC4 [1:8] R/W Undefined H'F840 8/16 bits Message control 5 [1:8] MC5 [1:8] R/W Undefined H'F848 8/16 bits Message control 6 [1:8] MC6 [1:8] R/W Undefined H'F850 8/16 bits Message control 7 [1:8] MC7 [1:8] R/W Undefined H'F858 8/16 bits Message control 8 [1:8] MC8 [1:8] R/W Undefined H'F860 8/16 bits Message control 9 [1:8] MC9 [1:8] R/W Undefined H'F868 8/16 bits Message control 10 [1:8] MC10 [1:8] R/W Undefined H'F870 8/16 bits Message control 11 [1:8] MC11 [1:8] R/W Undefined H'F878 8/16 bits Message control 12 [1:8] MC12 [1:8] R/W Undefined H'F880 8/16 bits Message control 13 [1:8] MC13 [1:8] R/W Undefined H'F888 8/16 bits Message control 14 [1:8] MC14 [1:8] R/W Undefined H'F890 8/16 bits Message control 15 [1:8] MC15 [1:8] R/W Undefined H'F898 8/16 bits Message data 0 [1:8] MD0 [1:8] R/W Undefined H'F8B0 8/16 bits Message data 1 [1:8] MD1 [1:8] R/W Undefined H'F8B8 8/16 bits Message data 2 [1:8] MD2 [1:8] R/W Undefined H'F8C0 8/16 bits Message data 3 [1:8] MD3 [1:8] R/W Undefined H'F8C8 8/16 bits Message data 4 [1:8] MD4 [1:8] R/W Undefined H'F8D0 8/16 bits Message data 5 [1:8] MD5 [1:8] R/W Undefined H'F8D8 8/16 bits Message data 6 [1:8] MD6 [1:8] R/W Undefined H'F8E0 8/16 bits Message data 7 [1:8] MD7 [1:8] R/W Undefined H'F8E8 8/16 bits Message data 8 [1:8] MD8 [1:8] R/W Undefined H'F8F0 8/16 bits Message data 9 [1:8] MD9 [1:8] R/W Undefined H'F8F8 8/16 bits Message data 10 [1:8] MD10 [1:8] R/W Undefined H'F900 8/16 bits Message data 11 [1:8] MD11 [1:8] R/W Undefined H'F908 8/16 bits Message data 12 [1:8] MD12 [1:8] R/W Undefined H'F910 8/16 bits Message data 13 [1:8] MD13 [1:8] R/W Undefined H'F918 8/16 bits Message data 14 [1:8] MD14 [1:8] R/W Undefined H'F920 8/16 bits Message data 15 [1:8] MD15 [1:8] R/W Undefined H'F928 8/16 bits Module stop control register C MSTPCRC R/W H'FF H'FDEA 8/16 bits Note: * Lower 16 bits of the address. Page 540 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2 Register Descriptions 15.2.1 Master Control Register (MCR) The master control register (MCR) is an 8-bit readable/writable register that controls the CAN interface. MCR Bit: 7 6 5 4 3 2 1 0 MCR7 -- MCR5 -- -- MCR2 MCR1 MCR0 0 0 0 0 0 0 0 1 R/W R R/W R R R/W R/W R/W Initial value: R/W: Bit 7--HCAN Sleep Mode Release (MCR7): Enables or disables HCAN sleep mode release by bus operation. Bit 7 MCR7 Description 0 HCAN sleep mode release by CAN bus operation disabled 1 HCAN sleep mode release by CAN bus operation enabled (Initial value) Bit 6--Reserved: This bit always reads 0. The write value should always be 0. Bit 5--HCAN Sleep Mode (MCR5): Enables or disables HCAN sleep mode transition. Bit 5 MCR5 Description 0 HCAN sleep mode released 1 Transition to HCAN sleep mode enabled (Initial value) Bits 4 and 3--Reserved: These bits always read 0. The write value should always be 0. Bit 2--Message Transmission Method (MCR2): Selects the transmission method for transmit messages. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 541 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Bit 2 MCR2 Description 0 Transmission order determined by message identifier priority 1 Transmission order determined by mailbox (buffer) number priority (TXPR1 > TXPR15) (Initial value) Bit 1--Halt Request (MCR1): Controls halting of the HCAN module. Bit 1 MCR1 Description 0 HCAN normal operating mode 1 HCAN halt mode transition request (Initial value) Bit 0--Reset Request (MCR0): Controls resetting of the HCAN module. Bit 0 MCR0 Description 0 Normal operating mode (MCR0 = 0 and GSR3 = 0) [Setting condition] When 0 is written after an HCAN reset 1 HCAN reset mode transition request (Initial value) In order for GSR3 to change from 1 to 0 after 0 is written to MCR0, time is required before the HCAN is internally reset. There is consequently a delay before GSR3 is cleared to 0 after MCR0 is cleared to 0. 15.2.2 General Status Register (GSR) The general status register (GSR) is an 8-bit readable register that indicates the status of the CAN bus. GSR Bit: 7 6 5 4 3 2 1 0 -- -- -- -- GSR3 GSR2 GSR1 GSR0 Initial value: 0 0 0 0 1 1 0 0 R/W: R R R R R R R R Bits 7 to 4--Reserved: These bits always read 0. Page 542 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Bit 3--Reset Status Bit (GSR3): Indicates whether the HCAN module is in the normal operating state or the reset state. This bit cannot be written to. Bit 3 GSR3 Description 0 Normal operating state [Setting condition] After an HCAN internal reset 1 Configuration mode [Reset condition] MCR0 reset mode and sleep mode (Initial value) Bit 2--Message Transmission Status Flag (GSR2): Flag that indicates whether the module is currently in the message transmission period. The "message transmission period" is the period from the start of message transmission (SOF) until the end of a 3-bit intermission interval after EOF (End of Frame). This bit cannot be written to. Bit 2 GSR2 Description 0 Message transmission period 1 [Reset Condition] Idle period (Initial value) Bit 1--Transmit/Receive Warning Flag (GSR1): Flag that indicates an error warning. This bit cannot be written to. Bit 1 GSR1 0 1 Description [Reset condition] When TEC < 96 and REC < 96 or TEC 256 (Initial value) When TEC 96 or REC 96 Bit 0--Bus Off Flag (GSR0): Flag that indicates the bus off state. This bit cannot be written to. Bit 0 GSR0 Description 0 [Reset condition] Recovery from bus off state 1 When TEC 256 (bus off state) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 543 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2.3 Bit Configuration Register (BCR) The bit configuration register (BCR) is a 16-bit readable/writable register that is used to set CAN bit timing parameters and the baud rate prescaler. BCR Bit: Initial value: R/W: Bit: Initial value: R/W: 15 14 13 12 11 10 9 8 BCR7 BCR6 BCR5 BCR4 BCR3 BCR2 BCR1 BCR0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 BCR15 BCR14 BCR13 BCR12 BCR11 BCR10 BCR9 BCR8 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W Bits 15 and 14--Resynchronization Jump Width (SJW): These bits set the bit synchronization range. Bit 15 BCR7 Bit 14 BCR6 Description 0 0 Bit synchronization width = 1 time quantum 1 Bit synchronization width = 2 time quanta 1 0 Bit synchronization width = 3 time quanta 1 Bit synchronization width = 4 time quanta (Initial value) Bits 13 to 8--Baud Rate Prescaler (BRP): These bits are used to set the CAN bus baud rate. Bit 13 BCR5 Bit 12 BCR4 Bit 11 BCR3 Bit 10 BCR2 Bit 9 BCR1 Bit 8 BCR0 Description 0 0 0 0 0 0 2 x system clock 0 0 0 0 0 1 4 x system clock 0 0 0 0 1 0 6 x system clock 1 1 1 1 1 1 Page 544 of 1126 (Initial value) 128 x system clock REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Bit 7--Bit Sample Point (BSP): Sets the point at which data is sampled. Bit 7 BCR15 Description 0 Bit sampling at one point (end of time segment 1 (TSEG1)) 1 Bit sampling at three points (end of TSEG1 and preceding and following time quantum) (Initial value) Bits 6 to 4--Time Segment 2 (TSEG2): These bits are used to set the segment for correcting 1bit time error. A value from 2 to 8 can be set. Bit 6 BCR14 Bit 5 BCR13 Bit 4 BCR12 Description 0 0 0 Setting prohibited 1 TSEG2 = 2 time quanta 0 TSEG2 = 3 time quanta 1 TSEG2 = 4 time quanta 0 TSEG2 = 5 time quanta 1 TSEG2 = 6 time quanta 0 TSEG2 = 7 time quanta 1 TSEG2 = 8 time quanta 1 1 0 1 (Initial value) Bits 3 to 0--Time Segment 1 (TSEG1): These bits are used to set the segment for absorbing output buffer, CAN bus, and input buffer delay. A value of 1 or 4 to 16 can be set. Bit 3 BCR11 Bit 2 BCR10 Bit 1 BCR9 Bit 0 BCR8 Description 0 0 0 0 Setting prohibited 0 0 0 1 Setting prohibited 0 0 1 0 Setting prohibited 0 0 1 1 TSEG1 = 4 time quanta 0 1 0 0 TSEG1 = 5 time quanta 1 1 1 1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) TSEG1 = 16 time quanta Page 545 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2.4 Mailbox Configuration Register (MBCR) The mailbox configuration register (MBCR) is a 16-bit readable/writable register that is used to set mailbox (buffer) transmission/reception. MBCR Bit: Initial value: R/W: Bit: 15 14 13 12 11 10 9 8 MBCR7 MBCR6 MBCR5 MBCR4 MBCR3 MBCR2 MBCR1 -- 0 0 0 0 0 0 0 1 R/W R/W R/W R/W R/W R/W R/W -- 7 6 5 4 3 2 1 0 MBCR9 MBCR8 MBCR15 MBCR14 MBCR13 MBCR12 MBCR11 MBCR10 Initial value: R/W: 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W Bits 15 to 9 and 7 to 0--Mailbox Setting Register: These bits set the polarity of the corresponding mailboxes. Bit y MBCRx Description 0 Corresponding mailbox is set for transmission 1 Corresponding mailbox is set for reception (Initial value) (x = 15 to 1, y = 15 to 9 and 7 to 0) Bit 8--Reserved: This bit always reads 1. The write value should always be 1. Page 546 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 15.2.5 Section 15 Controller Area Network (HCAN) Transmit Wait Register (TXPR) The transmit wait register (TXPR) is a 16-bit readable/writable register that is used to set a transmit wait after a transmit message is stored in a mailbox (buffer) (CAN bus arbitration wait). TXPR Bit: 15 14 13 12 11 10 9 8 TXPR7 TXPR6 TXPR5 TXPR4 TXPR3 TXPR2 TXPR1 -- 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W -- 7 6 5 4 3 2 1 0 Initial value: R/W: Bit: TXPR15 TXPR14 TXPR13 TXPR12 TXPR11 TXPR10 TXPR9 Initial value: R/W: TXPR8 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W Bits 15 to 9 and 7 to 0--Transmit Wait Register: These bits set a transmit wait for the corresponding mailboxes. Bit y TXPRx Description 0 Transmit message idle state in corresponding mailbox (Initial value) [Clearing condition] Message transmission completion and cancellation completion 1 Transmit message transmit wait in corresponding mailbox (CAN bus arbitration) (x = 15 to 1, y = 15 to 9 and 7 to 0) Bit 8--Reserved: This bit always reads 0. The write value should always be 0. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 547 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2.6 Transmit Wait Cancel Register (TXCR) The transmit wait cancel register (TXCR) is a 16-bit readable/writable register that controls cancellation of transmit wait messages in mailboxes (buffers). TXCR Bit: Initial value: R/W: Bit: 15 14 13 12 11 10 9 8 TXCR7 TXCR6 TXCR5 TXCR4 TXCR3 TXCR2 TXCR1 -- 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W -- 7 6 5 4 3 2 1 0 TXCR15 TXCR14 TXCR13 TXCR12 TXCR11 TXCR10 TXCR9 Initial value: R/W: TXCR8 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W Bits 15 to 9 and 7 to 0--Transmit Wait Cancel Register: These bits control cancellation of transmit wait messages in the corresponding HCAN mailboxes. Bit y TXCRx Description 0 Transmit message cancellation idle state in corresponding mailbox (Initial value) [Clearing condition] Completion of TXPR clearing (when transmit message is canceled normally) 1 TXPR cleared for corresponding mailbox (transmit message cancellation) (x = 15 to 1, y = 15 to 9 and 7 to 0) Bit 8--Reserved: This bit always reads 0. The write value should always be 0. Page 548 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 15.2.7 Section 15 Controller Area Network (HCAN) Transmit Acknowledge Register (TXACK) The transmit acknowledge register (TXACK) is a 16-bit readable/writable register containing status flags that indicate normal transmission of mailbox (buffer) transmit messages. TXACK Bit: 15 14 13 12 11 10 9 8 TXACK7 TXACK6 TXACK5 TXACK4 TXACK3 TXACK2 TXACK1 -- 0 0 0 0 0 0 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* -- 7 6 5 4 3 2 1 0 Initial value: R/W: Bit: TXACK15 TXACK14 TXACK13 TXACK12 TXACK11 TXACK10 TXACK9 Initial value: R/W: TXACK8 0 0 0 0 0 0 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Note: * Only a write of 1 is permitted, to clear the flag. Bits 15 to 9 and 7 to 0--Transmit Acknowledge Register: These bits indicate that a transmit message in the corresponding HCAN mailbox has been transmitted normally. Bit y TXACKx Description 0 [Clearing condition] Writing 1 (Initial value) 1 Completion of message transmission for corresponding mailbox (x = 15 to 1, y = 15 to 9 and 7 to 0) Bit 8--Reserved: This bit always reads 0. The write value should always be 0. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 549 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2.8 Abort Acknowledge Register (ABACK) The abort acknowledge register (ABACK) is a 16-bit readable/writable register containing status flags that indicate normal cancellation (aborting) of a mailbox (buffer) transmit messages. ABACK Bit: 15 14 13 12 11 10 9 8 -- ABACK7 ABACK6 ABACK5 ABACK4 ABACK3 ABACK2 ABACK1 Initial value: R/W: Bit: 0 0 0 0 0 0 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* -- 7 6 5 4 3 2 1 0 ABACK15 ABACK14 ABACK13 ABACK12 ABACK11 ABACK10 ABACK9 ABACK8 Initial value: R/W: 0 0 0 0 0 0 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Note: * Only a write of 1 is permitted, to clear the flag. Bits 15 to 9 and 7 to 0--Abort Acknowledge Register: These bits indicate that a transmit message in the corresponding mailbox has been canceled (aborted) normally. Bit y ABACKx Description 0 [Clearing condition] Writing 1 (Initial value) 1 Completion of transmit message cancellation for corresponding mailbox (x = 15 to 1, y = 15 to 9 and 7 to 0) Bit 8--Reserved: This bit always reads 0. The write value should always be 0. Page 550 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 15.2.9 Section 15 Controller Area Network (HCAN) Receive Complete Register (RXPR) The receive complete register (RXPR) is a 16-bit readable/writable register containing status flags that indicate normal reception of messages (data frame or remote frame) in mailboxes (buffers). When receiving a remote frame, the corresponding remote-request register (REPR) is also set at the same time. RXPR Bit: 15 14 13 12 11 10 9 8 RXPR7 RXPR6 RXPR5 RXPR4 RXPR3 RXPR2 RXPR1 RXPR0 0 0 0 0 0 0 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* 7 6 5 4 3 2 1 0 Initial value: R/W: Bit: RXPR15 RXPR14 RXPR13 RXPR12 RXPR11 RXPR10 RXPR9 Initial value: R/W: RXPR8 0 0 0 0 0 0 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Note: * Only a write of 1 is permitted, to clear the flag. Bits 15 to 0--Receive Complete Register: These bits indicate that a receive message has been received normally in the corresponding mailbox. Bit x RXPRx Description 0 [Clearing condition] Writing 1 (Initial value) 1 Completion of message (data frame or remote frame) reception in corresponding mailbox (x = 15 to 0) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 551 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2.10 Remote Request Register (RFPR) The remote request register (RFPR) is a 16-bit readable/writable register containing status flags that indicate normal reception of remote frames in mailboxes (buffers). When this bit is set, the corresponding receive-completed bit is set the same time. RFPR Bit: Initial value: R/W: Bit: 15 14 13 12 11 10 9 8 RFPR7 RFPR6 RFPR5 RFPR4 RFPR3 RFPR2 RFPR1 RFPR0 0 0 0 0 0 0 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* 7 6 5 4 3 2 1 0 RFPR15 RFPR14 RFPR13 RFPR12 RFPR11 RFPR10 RFPR9 Initial value: R/W: RFPR8 0 0 0 0 0 0 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Note: * Only a write of 1 is permitted, to clear the flag. Bits 15 to 0--Remote Request Register: These bits indicate that a remote frame has been received normally in the corresponding mailbox. Bit x RFPRx Description 0 [Clearing condition] Writing 1 1 Completion of remote frame reception in corresponding mailbox (Initial value) (x = 15 to 0) Page 552 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2.11 Interrupt Register (IRR) The interrupt register (IRR) is a 16-bit readable/writable register containing status flags for the various interrupt sources. IRR Bit: 15 14 13 12 11 10 9 8 IRR7 IRR6 IRR5 IRR4 IRR3 IRR2 IRR1 IRR0 0 0 0 0 0 0 0 1 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R R R/(W)* 7 6 5 4 3 2 1 0 -- -- -- IRR12 -- -- IRR9 IRR8 0 0 0 0 0 0 0 0 -- R/(W)* -- -- R R/(W)* Initial value: R/W: Bit: Initial value: R/W: -- -- Note: * Only a write of 1 is permitted, to clear the flag. Bit 15--Overload Frame Interrupt Flag: Status flag indicating that the HCAN has transmitted an overload frame. Bit 15 IRR7 Description 0 [Clearing condition] Writing 1 1 Overload frame transmission (Initial value) [Setting conditions] When overload frame is transmitted Bit 14--Bus Off Interrupt Flag: Status flag indicating the bus off state caused by the transmit error counter. Bit 14 IRR6 Description 0 [Clearing condition] Writing 1 1 Bus off state caused by transmit error (Initial value) [Setting condition] When TEC 256 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 553 of 1126 Section 15 Controller Area Network (HCAN) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 13--Error Passive Interrupt Flag: Status flag indicating the error passive state caused by the transmit/receive error counter. Bit 13 IRR5 Description 0 [Clearing condition] Writing 1 1 Error passive state caused by transmit/receive error (Initial value) [Setting condition] When TEC 128 or REC 128 Bit 12--Receive Overload Warning Interrupt Flag: Status flag indicating the error warning state caused by the receive error counter. Bit 12 IRR4 Description 0 [Clearing condition] Writing 1 1 Error warning state caused by receive error (Initial value) [Setting condition] When REC 96 Bit 11--Transmit Overload Warning Interrupt Flag: Status flag indicating the error warning state caused by the transmit error counter. Bit 11 IRR3 Description 0 [Clearing condition] Writing 1 1 Error warning state caused by transmit error (Initial value) [Setting condition] When TEC 96 Page 554 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Bit 10--Remote Frame Request Interrupt Flag: Status flag indicating that a remote frame has been received in a mailbox (buffer). Bit 10 IRR2 Description 0 [Clearing condition] (Initial value) Clearing of all bits in RFPR (remote request register) of the mailbox, which enables the receive interrupt requests in the MBIMR 1 Remote frame received and stored in mailbox [Setting conditions] When remote frame reception is completed, when corresponding MBIMR = 0 Bit 9--Receive Message Interrupt Flag: Status flag indicating that a mailbox (buffer) receive message has been received normally. Bit 9 IRR1 Description 0 [Clearing condition] (Initial value) Clearing of all bits in RXPR (receive complete register) of the mailbox, which enables the receive interrupt requests in the MBIMR 1 Data frame or remote frame received and stored in mailbox [Setting conditions] When data frame or remote frame reception is completed, when corresponding MBIMR = 0 Bit 8--Reset Interrupt Flag: Status flag indicating that the HCAN module has been reset. This bit cannot be masked by the interrupt mask register (IMR). When this bit is not cleared after a reset input or recovery from software standby mode, this bit executes the interrupt processing immediately by enabling an interrupt by the interrupt controller. Bit 8 IRR0 Description 0 [Clearing condition] Writing 1 1 Hardware reset (HCAN module stop*, software standby) (Initial value) [Setting condition] When reset processing is completed after a hardware reset (HCAN module stop*, software standby) Note: * After reset or hardware standby release, the module stop bit is initialized to 1, and so the HCAN enters the module stop state. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 555 of 1126 Section 15 Controller Area Network (HCAN) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bits 7 to 5, 3, and 2--Reserved: These bits always read 0. The write value should always be 0. Bit 4--Bus Operation Interrupt Flag: Status flag indicating detection of a dominant bit due to bus operation when the HCAN module is in HCAN sleep mode. Bit 4 IRR12 Description 0 CAN bus idle state (Initial value) [Clearing condition] Writing 1 1 CAN bus operation in HCAN sleep mode [Setting condition] Bus operation (dominant bit detection) in HCAN sleep mode Bit 1--Unread Interrupt Flag: Status flag indicating that a receive message has been overwritten while still unread. Bit 1 IRR9 Description 0 [Clearing condition] Clearing of all bits in UMSR (unread message status register) 1 Unread message overwrite (Initial value) [Setting condition] When UMSR (unread message status register) is set Bit 0--Mailbox Empty Interrupt Flag: Status flag indicating that the next transmit message can be stored in the mailbox. Bit 0 IRR8 Description 0 [Clearing condition] Writing 1 (Initial value) 1 Transmit message has been transmitted or aborted, and new message can be stored [Setting condition] When TXPR (transmit wait register) is cleared by completion of transmission or completion of transmission abort Page 556 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2.12 Mailbox Interrupt Mask Register (MBIMR) The mailbox interrupt mask register (MBIMR) is a 16-bit readable/writable register containing flags that enable or disable individual mailbox (buffer) interrupt requests. MBIMR Bit: 15 14 13 12 11 10 9 8 MBIMR7 MBIMR6 MBIMR5 MBIMR4 MBIMR3 MBIMR2 MBIMR1 MBIMR0 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 Initial value: R/W: Bit: MBIMR15 MBIMR14 MBIMR13 MBIMR12 MBIMR11 MBIMR10 MBIMR9 Initial value: R/W: MBIMR8 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W Bits 15 to 0--Mailbox Interrupt Mask (MBIMRx): Flags that enable or disable individual mailbox interrupt requests. Bit x MBIMRx 0 Description [Transmitting] Interrupt request to CPU due to TXPR clearing [Receiving] Interrupt request to CPU due to RXPR setting 1 Interrupt requests to CPU disabled (Initial value) (x = 15 to 0) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 557 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2.13 Interrupt Mask Register (IMR) The interrupt mask register (IMR) is a 16-bit readable/writable register containing flags that enable or disable requests by individual interrupt sources. IMR Bit: 15 14 13 12 11 10 9 8 IMR7 IMR6 IMR5 IMR4 IMR3 IMR2 IMR1 -- 1 1 1 1 1 1 1 0 R/W R/W R/W R/W R/W R/W R/W -- 7 6 5 4 3 2 1 0 -- -- -- IMR12 -- -- IMR9 IMR8 Initial value: 1 1 1 1 1 1 1 1 R/W: -- -- -- R/W -- -- R/W R/W Initial value: R/W: Bit: Bit 15--Overload Frame/Bus Off Recovery Interrupt Mask: Enables or disables overload frame/bus off recovery interrupt requests. Bit 15 IMR7 Description 0 Overload frame/bus off recovery interrupt request to CPU by IRR7 enabled 1 Overload frame/bus off recovery interrupt request to CPU by IRR7 disabled (Initial value) Bit 14--Bus Off Interrupt Mask: Enables or disables bus off interrupt requests caused by the transmit error counter. Bit 14 IMR6 Description 0 Bus off interrupt request to CPU by IRR6 enabled 1 Bus off interrupt request to CPU by IRR6 disabled Page 558 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Bit 13--Error Passive Interrupt Mask: Enables or disables error passive interrupt requests caused by the transmit/receive error counter. Bit 13 IMR5 Description 0 Error passive interrupt request to CPU by IRR5 enabled 1 Error passive interrupt request to CPU by IRR5 disabled (Initial value) Bit 12--Receive Overload Warning Interrupt Mask: Enables or disables error warning interrupt requests caused by the receive error counter. Bit 12 IMR4 Description 0 REC error warning interrupt request to CPU by IRR4 enabled 1 REC error warning interrupt request to CPU by IRR4 disabled (Initial value) Bit 11--Transmit Overload Warning Interrupt Mask: Enables or disables error warning interrupt requests caused by the transmit error counter. Bit 11 IMR3 Description 0 TEC error warning interrupt request to CPU by IRR3 enabled 1 TEC error warning interrupt request to CPU by IRR3 disabled (Initial value) Bit 10--Remote Frame Request Interrupt Mask: Enables or disables remote frame reception interrupt requests. Bit 10 IMR2 Description 0 Remote frame reception interrupt request to CPU by IRR2 enabled 1 Remote frame reception interrupt request to CPU by IRR2 disabled REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 559 of 1126 Section 15 Controller Area Network (HCAN) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 9--Receive Message Interrupt Mask: Enables or disables message reception interrupt requests. Bit 9 IMR1 Description 0 Message reception interrupt request to CPU by IRR1 enabled 1 Message reception interrupt request to CPU by IRR1 disabled (Initial value) Bit 8--Reserved: This bit always reads 0. The write value should always be 0. Bits 7 to 5, 3, and 2--Reserved: These bits always read 1. The write value should always be 1. Bit 4--Bus Operation Interrupt Mask: Enables or disables interrupt requests due to bus operation in sleep mode. Bit 4 IMR12 Description 0 Bus operation interrupt request to CPU by IRR12 enabled 1 Bus operation interrupt request to CPU by IRR12 disabled (Initial value) Bit 1--Unread Interrupt Mask: Enables or disables unread receive message overwrite interrupt requests. Bit 1 IMR9 Description 0 Unread message overwrite interrupt request to CPU by IRR9 enabled 1 Unread message overwrite interrupt request to CPU by IRR9 disabled (Initial value) Bit 0--Mailbox Empty Interrupt Mask: Enables or disables mailbox empty interrupt requests. Bit 0 IMR8 Description 0 Mailbox empty interrupt request to CPU by IRR8 enabled 1 Mailbox empty interrupt request to CPU by IRR8 disabled Page 560 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2.14 Receive Error Counter (REC) The receive error counter (REC) is an 8-bit read-only register that functions as a counter indicating the number of receive message errors on the CAN bus. The count value is stipulated in the CAN protocol. REC Bit: 7 6 5 4 3 2 1 0 Initial value: 0 0 0 0 0 0 0 0 R/W: R R R R R R R R 15.2.15 Transmit Error Counter (TEC) The transmit error counter (TEC) is an 8-bit read-only register that functions as a counter indicating the number of transmit message errors on the CAN bus. The count value is stipulated in the CAN protocol. TEC Bit: 7 6 5 4 3 2 1 0 Initial value: 0 0 0 0 0 0 0 0 R/W: R R R R R R R R REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 561 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2.16 Unread Message Status Register (UMSR) The unread message status register (UMSR) is a 16-bit readable/writable register containing status flags that indicate, for individual mailboxes (buffers), that a received message has been overwritten by a new receive message before being read. If a previously received message is overwritten by a newly received message, the old data will be lost. UMSR Bit: Initial value: R/W: Bit: 15 14 13 12 11 10 9 8 UMSR7 UMSR6 UMSR5 UMSR4 UMSR3 UMSR2 UMSR1 UMSR0 0 0 0 0 0 0 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* 7 6 5 4 3 2 1 0 UMSR9 UMSR8 UMSR15 UMSR14 UMSR13 UMSR12 UMSR11 UMSR10 Initial value: R/W: 0 0 0 0 0 0 0 0 R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Note: * Only 1 can be written, to clear the flag. Bits 15 to 0--Unread Message Status Flags (UMSRx): Status flags indicating that an unread receive message has been overwritten. Bit x UMSRx 0 1 Description [Clearing condition] Writing 1 (Initial value) Unread receive message is overwritten by a new message [Setting condition] When a new message is received before RXPR is cleared (x = 15 to 0) Page 562 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2.17 Local Acceptance Filter Masks (LAFML, LAFMH) The local acceptance filter masks (LAFML, LAFMH) are 16-bit readable/writable registers that filter receive messages to be stored in the receive-only mailbox (RX0) according to the identifier. In these registers, consist of LAFMH15 (MSB) to LAFMH5 (LSB) are 11 standard/extended identifier bits, and LAFMH1 (MSB) to LAFML0 (LSB) are 18 extended identifier bits. LAFML Bit: 15 14 13 12 11 10 9 8 LAFML7 LAFML6 LAFML5 LAFML4 LAFML3 LAFML2 LAFML1 LAFML0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 Initial value: R/W: Bit: LAFML15 LAFML14 LAFML13 LAFML12 LAFML11 LAFML10 LAFML9 Initial value: R/W: LAFML8 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W 15 14 13 12 11 10 9 8 -- -- -- LAFMH Bit: LAFMH7 LAFMH6 LAFMH5 Initial value: R/W: LAFMH1 LAFMH0 0 0 0 0 0 0 0 0 R/W R/W R/W -- -- -- R/W R/W 7 6 5 4 3 2 1 0 Bit: LAFMH15 LAFMH14 LAFMH13 LAFMH12 LAFMH11 LAFMH10 LAFMH9 LAFMH8 Initial value: R/W: 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 563 of 1126 Section 15 Controller Area Network (HCAN) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM LAFMH Bits 7 to 0 and 15 to 13--11-Bit Identifier Filter (LAFMHx): Filter mask bits for the first 11 bits of the receive message identifier (for both standard and extended identifiers). Bit y LAFMHx Description 0 Stored in RX0 (receive-only mailbox) depending on bit match between RX0 message identifier and receive message identifier (Initial value) 1 Stored in RX0 (receive-only mailbox) regardless of bit match between RX0 message identifier and receive message identifier (x = 15 to 5, y = 15 to 13 and 7 to 0) LAFMH Bits 12 to 10--Reserved: These bits always read 0. The write value should always be 0. LAFMH Bits 9 and 8, LAFML bits 15 to 0--18-Bit Identifier Filter (LAFMHx, LAFMLy): Filter mask bits for the 18 bits of the receive message identifier (extended). Bit y LAFMHx LAFMLy Description 0 Stored in RX0 (receive-only mailbox) depending on bit match between RX0 message identifier and receive message identifier (Initial value) 1 Stored in RX0 (receive-only mailbox) regardless of bit match between RX0 message identifier and receive message identifier (x = 1 and 0, y = 15 to 0) Page 564 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2.18 Message Control (MC0 to MC15) The message control register sets (MC0 to MC15) consist of eight 8-bit readable/writable registers (MCx[1] to MCx[8]). The HCAN has 16 sets of these registers (MC0 to MC15). The initial value of these registers is undefined, so they must be initialized (by writing 0 or 1). MCx [1] Bit: 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Initial value: * * * * * * * * R/W: -- -- -- -- -- -- -- -- 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- * * * * * * * * R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- * * * * * * * * R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MCx [2] Bit: Initial value: R/W: MCx [3] Bit: Initial value: R/W: MCx [4] Bit: Initial value: R/W: * * * * * * * * R/W R/W R/W R/W R/W R/W R/W R/W *:Undefined REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 565 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) MCx [5] Bit: 7 6 5 STD_ID2 STD_ID1 STD_ID0 Initial value: R/W: 4 3 2 RTR IDE -- 1 0 EXD_ID17 EXD_ID16 * * * * * * * * R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 MCx [6] Bit: STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value: R/W: * * * * * * * * R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 MCx [7] Bit: EXD_ID7 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Initial value: R/W: * * * * * * * * R/W R/W R/W R/W R/W R/W R/W R/W 7 6 4 3 MCx [8] Bit: 5 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value: R/W: * * * * * * * * R/W R/W R/W R/W R/W R/W R/W R/W *:Undefined (x = 15 to 0) MCx[1] Bits 7 to 4--Reserved: The initial value of these bits is undefined; they must be initialized (by writing 0 or 1). Page 566 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) MCx[1] Bits 3 to 0--Data Length Code (DLC): These bits indicate the required length of data frames and remote frames. Bit 3 DLC3 Bit 2 DLC2 Bit 1 DLC1 Bit 0 DLC0 Description 0 0 0 0 Data length = 0 bytes 1 Data length = 1 byte 1 1 0 1 1 0/1 0/1 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0/1 Data length = 8 bytes MCx[2] Bits 7 to 0--Reserved: The initial value of these bits is undefined; they must be initialized (by writing 0 or 1). MCx[3] Bits 7 to 0--Reserved: The initial value of these bits is undefined; they must be initialized (by writing 0 or 1). MCx[4] Bits 7 to 0--Reserved: The initial value of these bits is undefined; they must be initialized (by writing 0 or 1). MCx[6] Bits 7 to 0--Standard Identifier (STD_ID10 to STD_ID3): MCx[5] Bits 7 to 5--Standard Identifier (STD_ID2 to STD_ID0): These bits set the identifier (standard identifier) of data frames and remote frames. Standard identifier SOF ID10 ID9 ID8 ID7 ID6 ID5 ID4 ID3 ID2 ID1 ID0 RTR SRR IDE STD_IDxx Figure 15.2 Standard Identifier REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 567 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) MCx[5] Bit 4--Remote Transmission Request (RTR): Used to distinguish between data frames and remote frames. Bit 4 RTR Description 0 Data frame 1 Remote frame MCx[5] Bit 3--Identifier Extension (IDE): Used to distinguish between the standard format and extended format of data frames and remote frames. Bit 3 IDE Description 0 Standard format 1 Extended format MCx[5] Bit 2--Reserved: The initial value of this bit is undefined; it must be initialized (by writing 0 or 1). MCx[5] Bits 1 and 0--Extended Identifier (EXD_ID17, EXD_ID16): MCx[8] Bits 7 to 0--Extended Identifier (EXD_ID15 to EXD_ID8): MCx[7] Bits 7 to 0--Extended Identifier (EXD_ID7 to EXD_ID0): These bits set the identifier (extended identifier) of data frames and remote frames. Extended Identifier IDE ID17 ID16 ID15 ID14 ID13 ID12 ID11 ID10 ID9 ID8 ID7 ID6 ID5 EXD_IDxx ID4 ID3 ID2 ID1 ID0 RTR R1 EXD_IDxx Figure 15.3 Extended Identifier Page 568 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.2.19 Message Data (MD0 to MD15) The message data register sets (MD0 to MD15) consist of eight 8-bit readable/writable registers (MDx[1] to MDx[8]). The HCAN has 16 sets of these registers (MD0 to MD15). The initial value of these registers is undefined, so they must be initialized (by writing 0 or 1). MDx [1] MSG_DATA_1 (8 bits) MDx [2] MSG_DATA_2 (8 bits) MDx [3] MSG_DATA_3 (8 bits) MDx [4] MSG_DATA_4 (8 bits) MDx [5] MSG_DATA_5 (8 bits) MDx [6] MSG_DATA_6 (8 bits) MDx [7] MSG_DATA_7 (8 bits) MDx [8] MSG_DATA_8 (8 bits) (x = 15 to 0) 15.2.20 Module Stop Control Register C (MSTPCRC) Bit: 7 6 5 4 3 2 1 0 MSTPC7 MSTPC6 MSTPC5 MSTPC4 MSTPC3 MSTPC2 MSTPC1 MSTPC0 Initial value: R/W: 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W MSTPCRC is an 8-bit readable/writable register that performs module stop mode control. When the MSTPC3 bit is set to 1, HCAN operation is stopped at the end of the bus cycle, and module stop mode is entered. Register read/write accesses are not possible in module stop mode. For details, see section 22.5, Module Stop Mode. MSTPCRC is initialized to H'FF by a reset, and in hardware standby mode. It is not initialized in software standby mode. Bit 3--Module Stop (MSTPC3): Specifies the HCAN module stop mode. Bit 3 MSTPC3 Description 0 HCAN module stop mode is cleared 1 HCAN module stop mode is set REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 569 of 1126 Section 15 Controller Area Network (HCAN) 15.3 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Operation This LSI device is equipped with 2-channel HCAN modules, which are controlled independently. Both modules have identical specifications, and they are controlled in the same manner. 15.3.1 Hardware and Software Resets The HCAN can be reset by a hardware reset or software reset. Hardware Reset (HCAN Module Stop, Reset*, Hardware*/Software Standby): Initialization is performed by automatic setting of the MCR reset request bit (MCR0) in MCR and the reset state bit (GSR3) in GSR within the HCAN (hardware reset). At the same time, all internal registers are initialized. However mailbox contents are retained. A flowchart of this reset is shown in figure 15.4. Note: * In a reset and in hardware standby mode, the module stop bit is initialized to 1 and the HCAN enters the module stop state. Software Reset (Write to MCR0): In normal operation initialization is performed by setting the MCR reset request bit (MCR0) in MCR (Software reset). With this kind of reset, if the CAN controller is performing a communication operation (transmission or reception), the initialization state is not entered until the message has been completed. During initialization, the reset state bit (GSR3) in GSR is set. In this kind of initialization, the error counters (TEC and REC) are initialized but other registers and RAM (mailboxes) are not. A flowchart of this reset is shown in figure 15.5. Page 570 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 15.3.2 Section 15 Controller Area Network (HCAN) Initialization after Hardware Reset After a hardware reset, the following initialization processing should be carried out: * IRR0 bit in the interrupt register (IRR) clearing * Bit rate setting * Mailbox transmit/receive settings * Mailbox (RAM) initialization * Message transmission method setting These initial settings must be made while the HCAN is in bit configuration mode. Configuration mode is a state in which the reset request bit (MCR0) in the master control register (MCR) is 1 and the reset status bit in the general status register (GSR) is also 1 (GSR3 = 1). Configuration mode is exited by clearing the reset request bit in MCR to 0; when MCR0 is cleared to 0, the HCAN automatically clears the reset state bit (GSR3) in the general status register (GSR). The power-up sequence then begins, and communication with the CAN bus is possible as soon as the sequence ends. The power-up sequence consists of the detection of 11 consecutive recessive bits. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 571 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Hardware reset MCR0 = 1 (automatic) IRR0 = 1 (automatic)*1 GSR3 = 1 (automatic) Initialization of HCAN module Bit configuration mode Period in which BCR, MBCR, etc., are initialized Clear IRR0 BCR setting MBCR setting Mailbox (RAM) initialization Message transmission method initialization MCR0 = 0 GSR3 = 0? No Yes IMR setting (interrupt mask setting) MBIMR setting (interrupt mask setting) MC[x] setting (receive identifier setting) LAFM setting (receive identifier mask setting) GSR3 = 0 & 11 recessive bits received? Yes CAN bus communication enabled No : Settings by user : Processing by hardware Notes: 1. When IRR0 is set to 1 (automatically) due to a hardware reset*2, a "hardware reset initiated reset processing" interrupt is generated. 2. In a reset and in hardware standby mode, the module stop bit is initialized to 1 and the HCAN enters the module stop state. Figure 15.4 Hardware Reset Flowchart Page 572 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) MCR0 = 1 Bus idle? No Yes GSR3 = 1 (automatic) Initialization of REC and TEC only BCR setting MBCR setting Mailbox (RAM) initialization Message transmission method initialization OK? Correction No Yes MCR0 = 0 GSR3 = 0? No Yes IMR setting MBIMR setting MC[x] setting LAFM setting OK? Correction No Yes GSR3 = 0 & 11 recessive bits received? Yes CAN bus communication enabled No : Settings by user : Processing by hardware Figure 15.5 Software Reset Flowchart REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 573 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Clearing the IRR0 bit of the Interrupt Register (IRR): The reset interrupt flag (IRR0) is always set after a reset or recovery from software standby mode. A HCAN interrupt is immediately entered if interrupts are enabled, so the IRR0 must be cleared. Bit Rate and Bit Timing Settings: As bit rate settings, a baud rate setting and bit timing setting must be made each time a CAN node begins communication. The baud rate and bit timing settings are made in the bit configuration register (BCR). Note: BCR can be written to at all times, but should only be modified in configuration mode. Settings should be made so that all CAN controllers connected to the CAN bus have the same baud rate and bit width. Refer to table 15.3 for the range of values that can be used as settings (TSEG1, TSEG2, BRP, sample point, and SJW) for BCR. Table 15.3 BCR Register Value Setting Ranges Name Abbreviation Min. Value Max. Value Time segment 1 TSEG1 B'0011 B'1111 Time segment 2 TSEG2 B'001 B'111 Baud rate prescaler BRP B'000000 B'111111 Sample point SAM B'0 B'1 Re-synchronization jump width SJW B'00 B'11 Value Setting Ranges * The value of SJW is stipulated in the CAN specifications. 3 SJW 0 * The minimum value of TSEG1 is stipulated in the CAN specifications. TSEG1 > TSEG2 * The minimum value of TSEG2 is stipulated in the CAN specifications. TSEG2 SJW Page 574 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) The following formula is used to calculate the baud rate. Bit rate = fCLK 2 x (BRP + 1) x (3 + TSEG1 + TSEG2) Note: fCLK = (system clock) The BCR value is used in the BRP, TSEG1, and TSEG2. Example: With a 1 Mb/s baud rate and a 20 MHz input clock: 1 Mb/s = 20 MHz 2 x (0 + 1) x (3 + 4 + 3) Set Values Actual Values fCLK = 20 MHz -- BRP = 0 (B'000000) System clock x 2 TSEG1 = 4 (B'0100) 5TQ TSEG2 = 3 (B'011) 4TQ 1-bit time 1-bit time (8 to 25 time quanta) SYNC_SEG PRSEG PHSEG1 TSEG1 (time segment 1)* 4 to 16 1 PHSEG2 TSEG2 (time segment 2)* 2 to 8 Quantum Legend: SYNC_SEG: Segment for establishing synchronization of nodes on the CAN bus. (Normal bit edge transitions occur in this segment.) PRSEG: Segment for compensating for physical delay between networks. PHSEG1: Buffer segment for correcting phase drift (positive). (This segment is extended when synchronization (resynchronization) is established.) PHSEG2: Buffer segment for correcting phase drift (negative). (This segment is shortened when synchronization (resynchronization) is established.) Note: * The time quanta values of TSEG1 and TSEG2 become the value of TSEG + 1. Figure 15.6 Detailed Description of Timing within 1 Bit REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 575 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) HCAN bit rate calculation: Bit rate = fCLK 2 x (BRP + 1) x (3 + TSEG1 + TSEG2) Note: fCLK = (system clock) The BCR values are used for BRP, TSEG1, and TSEG2. BCR Setting Constraints TSEG1 > TSEG2 SJW (SJW = 0 to 3) These constraints allow the setting range shown in table 15.4 for TSEG1 and TSEG2 in BCR. Table 15.4 Setting Range for TSEG1 and TSEG2 in BCR TSEG2 (BCR [14:12]) TSEG1 (BCR [11:8]) 0011 0100 001 010 011 100 101 110 111 No Yes* Yes No No No No No Yes Yes No No No No Yes Yes Yes No No No 0110 Yes* Yes* Yes Yes Yes Yes No No 0111 Yes* Yes Yes Yes Yes Yes No 1000 Yes* Yes Yes Yes Yes Yes Yes 1001 Yes* Yes Yes Yes Yes Yes Yes 1010 Yes* Yes* Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes 1101 Yes* Yes* Yes Yes Yes Yes Yes Yes 1110 Yes* Yes Yes Yes Yes Yes Yes 1111 Yes* Yes Yes Yes Yes Yes Yes 0101 1011 1100 Notes: The time quanta value for TSEG1 and TSEG2 is the TSEG value + 1. * Only a value other than BRP[13:8] = B'000000 can be set. Page 576 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Mailbox Transmit/Receive Settings: HCAN0, 1 each have 16 mailboxes. Mailbox 0 is receiveonly, while mailboxes 1 to 15 can be set for transmission or reception. Mailboxes that can be set for transmission or reception must be designated either for transmission use or for reception use before communication begins. The Initial status of mailboxes 1 to 15 is for transmission (while mailbox 0 is for reception only). Mailbox transmit/receive settings are not initialized by a software reset. * Setting for transmission Transmit mailbox setting (mailboxes 1 to 15) Clearing a bit to 0 in the mailbox configuration register (MBCR) designates the corresponding mailbox for transmission use. After a reset, mailboxes are initialized for transmission use, so this setting is not necessary. * Setting for reception Transmit/receive mailbox setting (mailboxes 1 to 15) Setting a bit to 1 in the mailbox configuration register (MBCR) designates the corresponding mailbox for reception use. When setting mailboxes for reception, to improve message transmission efficiency, high-priority messages should be set in low-to-high mailbox order (priority order: mailbox 1 > mailbox 15). * Receive-only mailbox (mailbox 0) No setting is necessary, as this mailbox is always used for reception. Mailbox (Message Control/Data (MCx[x], MDx[x])) Initial Settings: After power is supplied, all registers and RAM (message control/data, control registers, status registers, etc.) are initialized. Message control/data (MCx[x], MDx[x]) only are in RAM, and so their values are undefined. Initial values must therefore be set in all the mailboxes (by writing 0s or 1s). Setting the Message Transmission Method: Either of the following message transmission methods can be selected with the message transmission method bit (MCR2) in the master control register (MCR): a. Transmission order determined by message identifier priority b. Transmission order determined by mailbox number priority When a is selected, if a number of messages are designated as waiting for transmission (TXPR = 1), the message with the highest priority set in the message identifier (MCx[5] to MCx[8]) is stored in the transmit buffer. CAN bus arbitration is then carried out for the message in the transmit buffer, and message transmission is performed when the transmission right is acquired. When the TXPR bit is set, internal arbitration is performed again, and the highest-priority message is found and stored in the transmit buffer. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 577 of 1126 Section 15 Controller Area Network (HCAN) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM When b is selected, if a number of messages are designated as waiting for transmission (TXPR = 1), messages are stored in the transmit buffer in low-to-high mailbox order (priority order: mailbox 1 > mailbox 15). CAN bus arbitration is then carried out for the messages in the transmit buffer, and message transmission is performed when the bus is acquired. 15.3.3 Transmit Mode Message transmission is performed using mailboxes 1 to 15. The transmission procedure is described below, and a transmission flowchart is shown in figure 15.7. Initialization (after hardware reset only) a. IRR0 bit in the intereupt register (IRR0) clearing b. Bit rate settings c. Mailbox transmit/receive settings d. Mailbox initialization e. Message transmission method setting Interrupt and transmit data settings a. CPU interrupt source setting b. Arbitration field setting c. Control field setting d. Data field setting Message transmission and interrupts a. Message transmission wait b. Message transmission completion and interrupt c. Message transmission abort d. Message retransmission Page 578 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Initialization (After Hardware Reset Only): These settings should be made while the HCAN is in bit configuration mode. * IRR0 clearing The reset interrupt flag (IRR0) is always set after a reset or recovery from software standby mode. A HCAN interrupt is immediately entered if interrupts are enabled, so that IRR0 must be cleared. * Bit rate settings Set values relating to the CAN bus communication speed and resynchronization. Refer to Bit Rate and Bit Timing Settings in section 15.3.2, Initialization after Hardware Reset, for details. * Mailbox transmit/receive settings Mailbox transmit/receive settings should be made in advance. A total of 15 mailbox can be set for transmission or reception (mailboxes 1 to 15). To set a mailbox for transmission, clear the corresponding bit to 0 in the mailbox configuration register (MBCR). Refer to Mailbox transmit/receive settings in section 15.3.2, Initialization after Hardware Reset, for details. * Mailbox initialization As message control/data registers (MCx[x], MDx[x]) are configured in RAM, their initial values after powering on are undefined, and so bit initialization is necessary. Write 0s or 1s to the mailboxes. Refer to Mailbox (message control/data (Mcx[x], Mdx[x])) initial settings in section 15.3.2, Initialization after Hardware Reset, for details. * Message transmission method setting Set the transmission method for mailboxes designated for transmission. The following two transmission methods can be used. Refer to Message transmission method settings in section 15.3.2, Initialization after Hardware Reset, for details. a. Transmission order determined by message identifier priority b. Transmission order determined by mailbox number priority REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 579 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Initialization (after hardware reset only) IRR0 clearing BCR setting MBCR setting Mailbox initialization Message transmission method setting Interrupt settings Transmit data setting Arbitration field setting Control field setting Data field setting Message transmission wait TXPR setting Bus idle? No Yes Message transmission GSR2 = 0 (during transmission only) Transmission completed? No Yes TXACK = 1 IRR8 = 1 IMR8 = 1? Yes No Interrupt to CPU Clear TXACK Clear IRR8 : Settings by user End of transmission : Processing by hardware Figure 15.7 Transmission Flowchart Page 580 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Interrupt and Transmit Data Settings: When mailbox initialization is finished, CPU interrupt source settings and data settings must be made. Interrupt source settings are made in the mailbox interrupt register (MBIMR) and interrupt mask register (IMR), while transmit data settings are made by writing the necessary data from the arbitration field, control field, and data field, described below, in the corresponding message control (MCx[1] to MCx[8]) and message data (MDx[1] to MDx[8]). * CPU interrupt source settings Transmission acknowledge and transmission abort acknowledge interrupts can be masked for individual mailboxes in the mailbox interrupt mask register (MBIMR). Interrupt register (IRR) interrupts can be masked in the interrupt mask register (IMR). * Arbitration field setting In the arbitration field, the 11-bit identifier (STD_ID0 to STD_ID10) and RTR bit (standard format) or 29-bit identifier (STD_ID0 to STD_ID10, EXT_ID0 to EXT_ID17) and IDE.RTR bit (extended format) are set. The registers to be set are MCx[5] to MCx[8]. * Control field setting In the control field, the byte length of the data to be transmitted is set in DLC0 to DLC3. The register to be set is MCx[1]. * Data field setting In the data field, the data to be transmitted is set in byte units in the range of 0 to 8 bytes. The registers to be set are MDx[1] to MDx[8]. The number of bytes in the data actually transmitted depends on the data length code (DLC) in the control field. If a value exceeding the value set in DLC is set in the data field, only the number of bytes set in DLC will actually be transmitted. Message Transmission and Interrupts: * Message transmission wait If message transmission is to be performed after completion of the message control (MCx[1] to MCx[8]) and message data (MDx[1] to MDx[8]).settings, transmission is started by setting the corresponding mailbox transmit wait bit (TXPR1 to TXPR15) to 1 in the transmit wait register (TXPR). The following two transmission methods can be used: a. Transmission order determined by message identifier priority b. Transmission order determined by mailbox number priority When a is selected, if a number of messages are designated as waiting for transmission (TXPR = 1), messages are stored in the transmit buffer in low-to-high mailbox order (priority order: REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 581 of 1126 Section 15 Controller Area Network (HCAN) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM mailbox 1 > mailbox 15). CAN bus arbitration is then carried out for the messages in the transmit buffer, and message transmission is performed when the bus is acquired. When b is selected, if a number of messages are designated as waiting for transmission (TXPR = 1), the message with the highest priority set in the message identifier (MCx[5] to MCx[8]) is stored in the transmit buffer. CAN bus arbitration is then carried out for the message in the transmit buffer, and message transmission is performed when the transmission right is acquired. When the TXPR bit is set, internal arbitration is performed again, the highest-priority message is found and stored in the transmit buffer, CAN bus arbitration is carried out in the same way, and message transmission is performed when the transmission right is acquired. * Message transmission completion and interrupt When a message is transmitted error-free using the above procedure, The corresponding acknowledge bit (TXACK1 to TXACK15) in the transmit acknowledge register (TXACK) and transmit wait bit (TXPR1 to TXPR15) in the transmit wait register (TXPR) are automatically initialized. When the corresponding bits (MBIMR1 to MBIMR15) of the mailbox interrupt mask register (MBIMR) and the mailbox empty interrupt (IRR8) of the interrupt mask register (IMR) are set to enable interrupts, they can issue an interrupt to the CPU. * Message transmission cancellation Transmission cancellation can be specified for a message stored in a mailbox as a transmit wait message. A transmit wait message is canceled by setting the bit for the corresponding mailbox (TXCR1 to TXCR15) to 1 in the transmit cancel register (TXCR). When cancellation is executed, the transmit wait register (TXPR) is automatically reset, and the corresponding bit is set to 1 in the abort acknowledge register (ABACK). An interrupt to the CPU can be requested. Also, if the mailbox empty interrupt (IRR8) is enabled for the bits (MBIMR1 to MBIMR15) corresponding to the mailbox interrupt mask register (MBIMR) and interrupt mask register (IMR), interrupts may be sent to the CPU. However, a transmit wait message cannot be canceled at the following times: a. During internal arbitration or CAN bus arbitration b. During data frame or remote frame transmission Also, transmission cannot be canceled by clearing the transmit wait register (TXPR). Figure 15.8 shows a flowchart of transmit message cancellation. * Message retransmission If transmission of a transmit message is aborted in the following cases, the message is retransmitted automatically: a. CAN bus arbitration failure (failure to acquire the bus) b. Error during transmission (bit error, stuff error, CRC error, frame error, ACK error) Page 582 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Message transmit wait TXPR setting Set TXCR bit corresponding to message to be canceled Cancellation possible? No Yes Message not sent Clear TXCR, TXPR ABACK = 1 IRR8 = 1 IMR8 = 1? Completion of message transmission TXACK = 1 Clear TXCR, TXPR IRR8 = 1 Yes No Interrupt to CPU Clear TXACK Clear ABACK Clear IRR8 : Settings by user End of transmission/transmission cancellation : Processing by hardware Figure 15.8 Transmit Message Cancellation Flowchart REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 583 of 1126 Section 15 Controller Area Network (HCAN) 15.3.4 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Receive Mode Message reception is performed using mailboxes 0 and 1 to 15. The reception procedure is described below, and a reception flowchart is shown in figure 15.9. Initialization (after hardware reset only) a. IRR0 bit in the interrupt register (IRR0) clearing b. Bit rate settings c. Mailbox transmit/receive settings d. Mailbox (RAM) initialization Interrupt and receive message settings a. CPU interrupt source setting b. Arbitration field setting c. Local acceptance filter mask (LAFM) settings Message reception and interrupts a. Message reception CRC check b. Data frame reception c. Remote frame reception d. Unread message reception Page 584 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Initialization (After Hardware Reset Only): These settings should be made while the HCAN is in bit configuration mode. * IRR0 clearing The reset interrupt flag (IRR0) is always set after a reset or recovery from software standby mode. A HCAN interrupt is immediately entered if interrupts are enabled, so the IRR0 must be cleared. * Bit rate settings Set values relating to the CAN bus communication speed and resynchronization. Refer to Bit Rate and Bit Timing Settings in section 15.3.2, Initialization after Hardware Reset, for details. * Mailbox transmit/receive settings Each channel has one receive-only mailbox (mailbox 0) plus 15 mailboxes that can be set for reception. Thus a total of 16 mailboxes can be used for reception. To set a mailbox for reception, set the corresponding bit to 1 in the mailbox configuration register (MBCR). The initial setting for mailboxes is 0, designating transmission use. Refer to Mailbox transmit/receive settings in section 15.3.2, Initialization after Hardware Reset, for details. * Mailbox (RAM) initialization As message control/data registers (MCx[x], MDx[x]) are configured in RAM, their initial values after powering on are undefined, and so bit initialization is necessary. Write 0s or 1s to the mailboxes. Refer to Mailbox (message control/data (MCx[x], MDx[x])) initial settings in section 15.3.2, Initialization after Hardware Reset, for details. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 585 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) : Settings by user Initialization BCR setting MBCR setting Mailbox (RAM) initialization : Processing by hardware Interrupt settings Receive data setting Arbitration field setting Local acceptance filter settings Message reception (Match of identifier in mailbox?) No Yes Same RXPR = 1? Yes No Unread message No Data frame? Yes RXPR IRR1 = 1 RXPR, RFPR = 1 IRR2 = 1, IRR1 = 1 Yes IMR1 = 1? Yes IMR2 = 1? No No Interrupt to CPU Interrupt to CPU Message control read Message data read Message control read Message data read Clear all RXPR bit in the mailbox, which enables the receive interupts requests in the MBIMR Clear all RXPRn and RFPRn bits in the mailbox, which enables the receive interupt requests in the MBIMR Clear IRR1 Clear IRR2, IRR1 Transmission of data frame corresponding to remote frame End of reception Figure 15.9 Reception Flowchart Page 586 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Interrupt and Receive Message Settings: When mailbox initialization is finished, CPU interrupt source settings and receive message specifications must be made. Interrupt source settings are made in the mailbox interrupt register (MBIMR) and interrupt mask register (IMR). To receive a message, the identifier must be set in advance in the message control (MCx[1] to MCx[8]) for the receiving mailbox. When a message is received, all the bits in the receive message identifier are compared, and if a 100% match is found, the message is stored in the matching mailbox. Mailbox 0 (MB0) has a local acceptance filter mask (LAFM) that allows Don't Care settings to be made. * CPU interrupt source settings When transmitting, transmission acknowledge and transmission abort acknowledge interrupts can be masked for individual mailboxes in the mailbox interrupt mask register (MBIMR). When receiving, data frame and remote frame receive wait interrupts can be masked. Interrupt register (IRR) interrupts can be masked in the interrupt mask register (IMR). * Arbitration field setting In the arbitration field, the identifier (STD_ID0 to STD_ID10, EXT_ID0 to EXT_ID17) of the message to be received is set. If all the bits in the set identifier do not match, the message is not stored in a mailbox. Example: Mailbox 1 010_1010_1010 (standard identifier) Only one kind of message identifier can be received by MB1 Identifier 1: 010_1010_1010 * Local acceptance filter mask (LAFM) setting The local acceptance filter mask is provided for mailbox 0 (MB0) only, enabling a Don't Care specification to be made for all bits in the received identifier. This allows various kinds of messages to be received. Example: Mailbox 0 LAFM 010_1010_1010 (standard identifier) 000_0000_0011 (0: Care, 1: Don't Care) A total of four kinds of message identifiers can be received by MB0 Identifier 1: 010_1010_1000 Identifier 2: 010_1010_1001 Identifier 3: 010_1010_1010 Identifier 4: 010_1010_1011 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 587 of 1126 Section 15 Controller Area Network (HCAN) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Message Reception and Interrupts: * Message reception CRC check When a message is received, a CRC check is performed automatically (by hardware). If the result of the CRC check is normal, ACK is transmitted in the ACK field irrespective of whether or not the message can be received. * Data frame reception If the received message is confirmed to be error-free by the CRC check, etc., the identifier in the mailbox (and also LAFM in the case of mailbox 0 only) and the identifier of the receive message are compared, and if a complete match is found, the message is stored in the mailbox. The message identifier comparison is carried out on each mailbox in turn, starting with mailbox 0 and ending with mailbox 15. If a complete match is found, the comparison ends at that point, the message is stored in the matching mailbox, and the corresponding receive complete bit (RXPR0 to RXPR15) is set in the receive complete register (RXPR). However, when a mailbox 0 LAFM comparison is carried out, even if the identifier matches, the mailbox comparison sequence does not end at that point, but continues with mailbox 1 and then the remaining mailboxes. It is therefore possible for a message matching mailbox 0 to be received by another mailbox (however, the same message cannot be stored in more than one of mailboxes 1 to 15). If the corresponding bit (MBIMR0 to MBIMR15) in the mailbox interrupt mask register (MBIMR) and the receive message interrupt mask (IMR1) in the interrupt mask register (IMR) are set to the interrupt enable value at this time, an interrupt can be sent to the CPU. * Remote frame reception Two kinds of messages--data frames and remote frames--can be stored in mailboxes. A remote frame differs from a data frame in that the remote reception request bit (RTR) in the message control register (MC[x]5) and the data field are 0 bytes. The data length to be returned in a data frame must be stored in the data length code (DLC) in the control field. When a remote frame (RTR = recessive) is received, the corresponding bit is set in the remote request wait register (RFPR). If the corresponding bit (MBIMR0 to MBIMR15) in the mailbox interrupt mask register (MBIMR) and the remote frame request interrupt mask (IRR2) in the interrupt mask register (IMR) are set to the interrupt enable value at this time, an interrupt can be sent to the CPU. * Unread message reception When the identifier in a mailbox matches a receive message, the message is stored in the mailbox. If a message overwrite occurs before the CPU reads the message, the corresponding bit (UMSR0 to UMSR15) is set in the unread message register (UMSR). In overwriting of an unread message, when a new message is received before the corresponding bit in the receive Page 588 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) complete register (RXPR) has been cleared, the unread message register (UMSR) is set. If the unread interrupt flag (IRR9) in the interrupt mask register (IMR) is set to the interrupt enable value at this time, an interrupt can be sent to the CPU. Figure 15.10 shows a flowchart of unread message overwriting. Unread message overwrite UMSR = 1 IRR9 = 1 IMR9 = 1? Yes No Interrupt to CPU Clear IRR9 Message control/message data read : Settings by user End : Processing by hardware Figure 15.10 Unread Message Overwrite Flowchart 15.3.5 HCAN Sleep Mode The HCAN is provided with an HCAN sleep mode that places the HCAN module in the sleep state to reduce current dissipation. Figure 15.11 shows a flowchart of the HCAN sleep mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 589 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) MCR5 = 1 : Settings by user : Processing by hardware No Bus idle? Initialize TEC and REC No Bus operation? Yes IRR12 = 1 Do not access MB during these steps No IMR12 = 1? CPU interrupt Yes Sleep mode clearing method MCR7 = 0? No (automatic) Yes (manual) Clear sleep mode? No GSR3 = 1? No Yes MCR5 = 0 GSR3 = 1? No Yes Yes MCR5 = 0 11 recessive bits received? No Yes CAN bus communication possible Figure 15.11 HCAN Sleep Mode Flowchart Page 590 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) HCAN sleep mode is entered by setting the HCAN sleep mode bit (MCR5) to 1 in the master control register (MCR). If the CAN bus is operating, the transition to HCAN sleep mode is delayed until the bus becomes idle. Either of the following methods of clearing HCAN sleep mode can be selected by making a setting in the MCR7 bit. 1. Clearing by software 2. Clearing by CAN bus operation Eleven recessive bits must be received after HCAN sleep mode is cleared before CAN bus communication is enabled again. Clearing by software: HCAN sleep mode is cleared by writing a 0 to MCR5 from the CPU. Clearing by CAN bus operation: Clearing by CAN bus operation occurs automatically when the CAN bus performs an operation and this change is detected. The first message is not received in the mailbox and normal receiving starts from the next message. When a change is detected on the CAN bus in HCAN sleep mode, the bus operation interrupt flag (IRR12) is set in the interrupt register (IRR). If the bus interrupt mask (IMR12) in the interrupt mask register (IMR) is set to the interrupt enable value at this time, an interrupt can be sent to the CPU. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 591 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.3.6 HCAN Halt Mode The HCAN halt mode is provided to enable mailbox settings to be changed without performing an HCAN hardware or software reset. Figure 15.12 shows a flowchart of the HCAN halt mode. MCR1 = 1 Bus idle? No Yes MBCR setting MCR1 = 0 : Settings by user CAN bus communication possible : Processing by hardware Figure 15.12 HCAN Halt Mode Flowchart HCAN halt mode is entered by setting the halt request bit (MCR1) to 1 in the master control register (MCR). If the CAN bus is operating, the transition to HCAN halt mode is delayed until the bus becomes idle. HCAN halt mode is cleared by clearing MCR1 to 0. Page 592 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 15.3.7 Section 15 Controller Area Network (HCAN) Interrupt Interface There are 12 HCAN interrupt sources, to which five independent interrupt vectors are assigned. Table 15.5 lists the HCAN interrupt sources. With the exception of the reset processing vector (IRR0), these sources can be masked. Masking is implemented using the mailbox interrupt mask register (MBIMR) and interrupt mask register (IMR). Table 15.5 HCAN Interrupt Sources IPR Bits Vector Vector Number IRR Bit Description IPRM (2 to 0) ERS0 108 IRR5 Error passive interrupt (TEC 128 or REC 128) IRR6 Bus off interrupt (TEC 256) OVR0 108 IRR0 Reset processing interrupt IRR2 Remote frame reception interrupt IRR3 Error warning interrupt (TEC 96) IRR4 Error warning interrupt (REC 96) IRR7 Overload frame transmission interrupt IRR9 Unread message overwrite interrupt IRR12 HCAN sleep mode CAN bus operation interrupt RM0 109 IRR1 Mailbox 0 message reception interrupt RM1 108 IRR1 Mailbox 1 to 15 message reception interrupt SLE0 108 IRR8 Message transmission/cancellation interrupt REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 593 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 15.3.8 DTC Interface The DTC can be activated by reception of a message in the HCAN's mailbox 0. When DTC transfer ends after DTC activation has been set, the RXPR0 and RFPR0 flags are acknowledge signal automatically. An interrupt request due to a receive interrupt from the HCAN cannot be sent to the CPU in this case. Figure 15.13 shows a DTC transfer flowchart. DTC initialization DTC enable register setting DTC register information setting Message reception in HCAN's mailbox 0 DTC activation End of DTC transfer? No Yes RXPR and RFPR clearing Transfer counter = 0 or DISEL = 1? No Yes Interrupt to CPU : Settings by user End : Processing by hardware Figure 15.13 DTC Transfer Flowchart Page 594 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 15.4 Section 15 Controller Area Network (HCAN) CAN Bus Interface A bus transceiver IC is necessary to connect the H8S/2646 Group chip to a CAN bus. A HA13721 transceiver IC, or compatible device, is recommended. Figure 15.14 shows a sample connection diagram. 120 Chip Vcc HA13721 Port MODE Vcc HRxD RxD CANH HTxD TxD CANL NC Vref CAN bus GND 120 Note: NC: No connection Figure 15.14 High-Speed Interface Using HA13721 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 595 of 1126 Section 15 Controller Area Network (HCAN) 15.5 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Usage Notes 1. Reset The HCAN is reset by a reset, and in hardware standby mode and software standby mode. All the registers are initialized in a reset, but mailboxes (message control (MCx[x])/message data (MDx[x]) are not. However, after powering on, mailboxes (message control (MCx[x])/message data (MDx[x]) are initialized, and their values are undefined. Therefore, mailbox initialization must always be carried out after a reset or a transition to hardware standby mode or software standby mode. The reset interrupt flag (IRR0) is always set after a reset or recovery from software standby mode. This bit cannot be masked by the interrupt mask register (IMR). When a flag is not cleared and the interrupt controller enables HCAN interrupts, the HCAN interrupts the CPU. Clear IRR0 during initialization. 2. HCAN sleep mode The bus operation interrupt flag (IRR12) in the interrupt register (IRR) is set by bus operation in HCAN sleep mode. Therefore, this flag is not used by the HCAN to indicate sleep mode release. Also note that the reset status bit (GSR3) in the general status register (GSR) is set in sleep mode. 3. Interrupts When the mailbox interrupt mask register (MBIMR) is set, the interrupt register (IRR8,2,1) is not set by reception completion, transmission completion, or transmission cancellation for the set mailboxes. 4. Error counters In the case of error active and error passive, REC and TEC normally count up and down. In the bus off state, 11-bit recessive sequences are counted (REC + 1) using REC. If REC reaches 96 during the count, IRR4 and GSR1 are set. 5. Register access Byte or word access can be used on all HCAN registers. Longword access cannot be used. 6. HCAN medium-speed mode In medium-speed mode, the HCAN register cannot be read from or written to. 7. Register hold during standby All registers in the HCAN are initialized on entering hardware standby or software modes. Page 596 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) 8. Usage of bit manipulation instructions The HCAN status flags are cleared by writing 1, so do not use a bit manipulation instruction to clear a flag. When clearing a flag, use the MOV instruction to write 1 to only the bit that is to be cleared. 9. HTxD pin output in error passive state If the HRxD pin becomes fixed at 1 during message transmission or reception when the HCAN is in the error active state, the HTxD pin will output 0 continuously while in the error passive state. To stop continuous 0 output to the CAN bus, disable the HCAN by means of an error warning interrupt or by setting the HCAN module stop mode through detection of a fixed 1 state by the HxRD pin monitor. 10. Transition to HCAN sleep mode The HCAN stops (transmission/reception stops) when MCR0 is cleared to 0 immediately after an HCAN sleep mode transition effected by setting TXPR of the HCAN to 1 and setting MCR5 to 1. When a transition is made to the HCAN sleep mode by means of the above steps, a 10-cycle wait should be inserted after the TxPR setting. After an HCAN sleep mode transition, release the HCAN sleep mode by clearing MCR5 to 0. 11. Message transmission cancellation (TxCR) If all the following conditions are met when cancellation of a transmission message is performed by means of TxCR of the HCAN, the TxCR or TxPR bit indicating cancellation is not cleared even though internal transmission is canceled. When canceling a message using TxCR, 1 should be written continuously until TxCR or TxPR becomes 0. 12. TxCR in the bus off state If TxPR is set before the HCAN goes to the bus off state, and a transition is made to the bus off state with transmission incomplete, cancellation will be performed even if TxCR is set during the bus off period, and the message will be transmitted after a transition to the error active state. 13. HCAN TXCR Operation A. When the transmit wait cancel register (TXCR) is used to cancel transmission of the message in a mailbox waiting for transmission, the corresponding bit in TXCR and the transmit wait register (TXPR) may not be cleared even after the transmission is canceled. This occurs when the following conditions are all satisfied. [Conditions] * The HRxD pin is tied to "1" because of a CAN bus error, etc. * There is one or more mailboxes waiting for transmission or transmitting. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 597 of 1126 Section 15 Controller Area Network (HCAN) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM * Ongoing message transmission from a mailbox is canceled by TXCR. If this occurs, the transmission is canceled but TXPR and TXCR continue to indicate a wrong status telling that a message is being cancelled. As a result, transmission cannot be restarted even after the HRxD pin is released from the tied state and the CAN bus has recovered. If there are two or more messages for transmission, a message which is not being transmitted is canceled and a message being transmitted retains its state. To avoid this, take either of the following countermeasures. [Countermeasures] * Do not cancel transmission by TXCR. Transmission will be completed after the CAN bus has recovered, then TXPR is cleared and the HCAN operates normally. * To cancel transmission, write 1 to the corresponding bit in TXCR repeatedly until the bit becomes 0. TXPR and TXCR are cleared, and the HCAN operates normally. B. When the bus-off state is entered while any mailbox is waiting for transmission with TXPR set, transmission cannot be canceled even if TXCR is set because the internal state machine does not operate during the bus-off state. Because of this, on recovery from the bus-off state, one message will be transmitted or the message will be canceled with a transmission error. For message clearing on recovery from the bus-off state, take the following countermeasure. [Countermeasure] * Reset the HCAN during the bus-off period to clear the messages in the mailboxes waiting for transmission. To reset the HCAN, set the module stop bit (MSTPC3 in MSTPCRC) to 1 and then clear it. In this case, the HCAN is entirely reset. Therefore the initial settings must be made again. 14. HCAN Transmit Procedure When transmission is set while the bus is in the idle state, if the next transmission is set or the set transmission is canceled under the following conditions within 50 s, the transmit message ID of being set may be damaged. When the second transmission has the message whose priority is higher than the first one When the massage of the highest priority is canceled in the first transmission Make whichever setting shown below to avoid the message IDs from being damaged. Set transmission in one TXPR. After transmission of all transmit messages is completed, set transmission again (mass transmission setting). The interval between transmission settings should be 50 s or longer. Make the transmission setting according to the priority of transmit messages. Set the interval to be 50 s or longer between TXPR and another TXPR or between TXPR and TXCR. Page 598 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 15 Controller Area Network (HCAN) Table 15.6 Interval Limitation between TXPR and TXPR or between TXPR and TXCR Baud Rate (bps) Set Interval (s) 1M 50 500 k 50 250 k 50 15. Note on Releasing the HCAN Reset or HCAN Sleep Before releasing the HCAN reset or HCAN sleep (MCR0 = 0 or MCR5 = 0), confirm that the GSR3 bit (the reset status bit) is set to 1. 16. Note on Accessing Mailbox during the HCAN Sleep Do not access the mailbox during the HCAN sleep. If accessed, the CPU might halt. Accessing registers during the HCAN sleep does not cause the CPU halt, nor does accessing the mailbox in other than the HCAN sleep mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 599 of 1126 Section 15 Controller Area Network (HCAN) Page 600 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter Section 16 A/D Converter 16.1 Overview The H8S/2646 Group incorporates a successive approximation type 10-bit A/D converter that allows up to twelve analog input channels to be selected. 16.1.1 Features A/D converter features are listed below. * 10-bit resolution * Twelve input channels * Settable analog conversion voltage range Conversion of analog voltages with the reference voltage pin (Vref) as the analog reference voltage * High-speed conversion Minimum conversion time: 13.3 s per channel (at 20-MHz operation) * Choice of single mode or scan mode Single mode: Single-channel A/D conversion Scan mode: Continuous A/D conversion on 1 to 4 channels * Four data registers Conversion results are held in a 16-bit data register for each channel * Sample and hold function * Three kinds of conversion start Choice of software or timer conversion start trigger (TPU), or ADTRG pin * A/D conversion end interrupt generation A/D conversion end interrupt (ADI) request can be generated at the end of A/D conversion * Module stop mode can be set As the initial setting, A/D converter operation is halted. Register access is enabled by exiting module stop mode REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 601 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter 16.1.2 Block Diagram Figure 16.1 shows a block diagram of the A/D converter. Module data bus Vref 10-bit D/A AVSS A D D R A A D D R B A D D R C A D D R D A D C S R A D C R /2 + - Multiplexer AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7 AN8 AN9 AN10 AN11 Bus interface Successive approximations register AVCC Internal data bus Comparator /4 Control circuit /8 Sample-andhold circuit /16 ADI interrupt ADTRG Legend: ADCR : A/D control register ADCSR : A/D control/status register ADDRA : A/D data register A ADDRB : A/D data register B ADDRC : A/D data register C ADDRD : A/D data register D Conversion start trigger from TPU Figure 16.1 Block Diagram of A/D Converter Page 602 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 16.1.3 Section 16 A/D Converter Pin Configuration Table 16.1 summarizes the input pins used by the A/D converter. The AVCC and AVSS pins are the power supply pins for the analog block in the A/D converter. The Vref pin is the A/D conversion reference voltage pin. The 12 analog input pins are divided into two channel sets and two groups, with analog input pins 0 to 7 (AN0 to AN7) comprising channel set 0, analog input pins 8 to 11 (AN8 to AN11) comprising channel set 1, analog input pins 0 to 3 and 8 to 11 (AN0 to AN3, AN8 to AN11) comprising group 0, and analog input pins 4 to 7 (AN4 to AN7) comprising group 1. Table 16.1 A/D Converter Pins Pin Name Symbol I/O Function Analog power supply pin AVCC Input Analog block power supply Analog ground pin AVSS Input Analog block ground and reference voltage Reference voltage pin Vref Input A/D conversion reference voltage Analog input pin 0 AN0 Input Channel set 0 (CH3 = 0) group 0 analog inputs Analog input pin 1 AN1 Input Analog input pin 2 AN2 Input Analog input pin 3 AN3 Input Analog input pin 4 AN4 Input Analog input pin 5 AN5 Input Analog input pin 6 AN6 Input Analog input pin 7 AN7 Input Analog input pin 8 AN8 Input Analog input pin 9 AN9 Input Analog input pin 10 AN10 Input Analog input pin 11 AN11 Input A/D external trigger input pin ADTRG Input REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Channel set 0 (CH3 = 0) group 1 analog inputs Channel set 1 (CH3 = 1) group 0 analog inputs External trigger input for starting A/D conversion Page 603 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter 16.1.4 Register Configuration Table 16.2 summarizes the registers of the A/D converter. Table 16.2 A/D Converter Registers Name Abbreviation R/W Initial Value 1 Address* A/D data register AH ADDRAH R H'00 H'FF90 A/D data register AL ADDRAL R H'00 H'FF91 A/D data register BH ADDRBH R H'00 H'FF92 A/D data register BL ADDRBL R H'00 H'FF93 A/D data register CH ADDRCH R H'00 H'FF94 A/D data register CL ADDRCL R H'00 H'FF95 A/D data register DH ADDRDH R H'00 H'FF96 A/D data register DL ADDRDL R H'00 H'FF97 A/D control/status register ADCSR R/(W)* H'00 H'FF98 A/D control register ADCR R/W H'33 H'FF99 Module stop control register A MSTPCRA R/W H'3F H'FDE8 2 Notes: 1. Lower 16 bits of the address. 2. Bit 7 can only be written with 0 for flag clearing. Page 604 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter 16.2 Register Descriptions 16.2.1 A/D Data Registers A to D (ADDRA to ADDRD) Bit : 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 -- -- -- -- -- -- Initial value : 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R/W R R R R R R R R R R R R R R R R : There are four 16-bit read-only ADDR registers, ADDRA to ADDRD, used to store the results of A/D conversion. The 10-bit data resulting from A/D conversion is transferred to the ADDR register for the selected channel and stored there. The upper 8 bits of the converted data are transferred to the upper byte (bits 15 to 8) of ADDR, and the lower 2 bits are transferred to the lower byte (bits 7 and 6) and stored. Bits 5 to 0 are always read as 0. The correspondence between the analog input channels and ADDR registers is shown in table 16.3. ADDR can always be read by the CPU. The upper byte can be read directly, but for the lower byte, data transfer is performed via a temporary register (TEMP). For details, see section 16.3, Interface to Bus Master. The ADDR registers are initialized to H'0000 by a reset, and in standby mode or module stop mode. Table 16.3 Analog Input Channels and Corresponding ADDR Registers Analog Input Channel Channel Set 0 (CH3 = 0) Channel Set 1 (CH3 = 1) Group 0 Group 1 Group 0 A/D Data Register AN0 AN4 AN8 ADDRA AN1 AN5 AN9 ADDRB AN2 AN6 AN10 ADDRC AN3 AN7 AN11 ADDRD REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 605 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter 16.2.2 A/D Control/Status Register (ADCSR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 ADF ADIE ADST SCAN CH3 CH2 CH1 CH0 0 0 0 0 0 0 0 0 R/(W)* R/W R/W R/W R/W R/W R/W R/W Note: * Only 0 can be written to bit 7, to clear this flag. ADCSR is an 8-bit readable/writable register that controls A/D conversion operations. ADCSR is initialized to H'00 by a reset, and in hardware standby mode or module stop mode. Bit 7--A/D End Flag (ADF): Status flag that indicates the end of A/D conversion. Bit 7 ADF Description 0 [Clearing conditions] 1 (Initial value) * When 0 is written to the ADF flag after reading ADF = 1 * When the DTC is activated by an ADI interrupt and ADDR is read [Setting conditions] * Single mode: When A/D conversion ends * Scan mode: When A/D conversion ends on all specified channels Bit 6--A/D Interrupt Enable (ADIE): Selects enabling or disabling of interrupt (ADI) requests at the end of A/D conversion. Bit 6 ADIE Description 0 A/D conversion end interrupt (ADI) request disabled 1 A/D conversion end interrupt (ADI) request enabled Page 606 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter Bit 5--A/D Start (ADST): Selects starting or stopping on A/D conversion. Holds a value of 1 during A/D conversion. The ADST bit can be set to 1 by software, a timer conversion start trigger, or the A/D external trigger input pin (ADTRG). Bit 5 ADST Description 0 A/D conversion stopped 1 * Single mode: A/D conversion is started. Cleared to 0 automatically when conversion on the specified channel ends * Scan mode: (Initial value) A/D conversion is started. Conversion continues sequentially on the selected channels until ADST is cleared to 0 by software, a reset, or a transition to standby mode or module stop mode. Bit 4--Scan Mode (SCAN): Selects single mode or scan mode as the A/D conversion operating mode. See section 16.4, Operation, for single mode and scan mode operation. Only set the SCAN bit while conversion is stopped (ADST = 0). Bit 4 SCAN Description 0 Single mode 1 Scan mode (Initial value) Bit 3--Channel Select 3 (CH3): Switches the analog input pins assigned to group 0 or group 1. Setting CH3 to 1 enables AN8 to AN11 to be used instead of AN0 to AN7. Bit 3 CH3 Description 0 AN8 to AN11 are group 0 analog input pins 1 AN0 to AN3 are group 0 analog input pins, AN4 to AN7 are group 1 analog input pins (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 607 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter Bits 2 to 0--Channel Select 2 to 0 (CH2 to CH0): Together with the SCAN bit, these bits select the analog input channels. Only set the input channel while conversion is stopped (ADST = 0). Channel Selection Description CH3 CH2 CH1 CH0 Single Mode (SCAN = 0) Scan Mode (SCAN = 1) 0 0 0 0 AN0 AN0 1 AN1 AN0, AN1 1 0 AN2 AN0 to AN2 1 AN3 AN0 to AN3 0 AN4 AN4 1 AN5 AN4, AN5 0 AN6 AN4 to AN6 1 AN7 AN4 to AN7 0 AN8 AN8 1 AN9 AN8, AN9 0 AN10 AN8 to AN10 1 AN11 AN8 to AN11 1 0 1 1 0 0 1 Page 608 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 16.2.3 Section 16 A/D Converter A/D Control Register (ADCR) Bit 7 6 5 4 3 2 1 0 TRGS1 TRGS0 -- -- CKS1 CKS0 -- -- : 0 0 1 1 0 0 1 1 R/W R/W -- -- R/W R/W -- -- Initial value : R/W : ADCR is an 8-bit readable/writable register that enables or disables external triggering of A/D conversion operations and sets the A/D conversion time. ADCR is initialized to H'33 by a reset, and in standby mode or module stop mode. Bits 7 and 6--Timer Trigger Select 1 and 0 (TRGS1, TRGS0): Select enabling or disabling of the start of A/D conversion by a trigger signal. Only set bits TRGS1 and TRGS0 while conversion is stopped (ADST = 0). Bit 7 TRGS1 Bit 6 TRGS0 Description 0 0 A/D conversion start by software is enabled 1 A/D conversion start by TPU conversion start trigger is enabled 1 0 Setting prohibited 1 A/D conversion start by external trigger pin (ADTRG) is enabled (Initial value) Bits 5, 4, 1, and 0--Reserved: These bits are reserved; they are always read as 1 and cannot be modified. Bits 3 and 2--Clock Select 1 and 0 (CKS1, CKS0): These bits select the A/D conversion time. The conversion time should be changed only when ADST = 0. Set bits CKS1 and CKS0 to give a conversion time of at least 10 s. Bit 3 CKS1 Bit 2 CKS0 Description 0 0 Conversion time = 530 states (max.) 1 Conversion time = 266 states (max.) 0 Conversion time = 134 states (max.) 1 Conversion time = 68 states (max.) 1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 609 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter 16.2.4 Module Stop Control Register A (MSTPCRA) Bit : 7 6 5 4 3 2 0 1 MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value : R/W : 0 0 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W MSTPCR is a 8-bit readable/writable register that performs module stop mode control. When the MSTPA1 bit in MSTPCR is set to 1, A/D converter operation stops at the end of the bus cycle and a transition is made to module stop mode. Registers cannot be read or written to in module stop mode. For details, see section 22.5, Module Stop Mode. MSTPCRA is initialized to H'3F by a reset and in hardware standby mode. It is not initialized by a reset and in software standby mode. Bit 1--Module Stop (MSTPA1): Specifies the A/D converter module stop mode. Bit 1 MSTPA1 Description 0 A/D converter module stop mode cleared 1 A/D converter module stop mode set Page 610 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 16.3 Section 16 A/D Converter Interface to Bus Master ADDRA to ADDRD are 16-bit registers, and the data bus to the bus master is 8 bits wide. Therefore, in accesses by the bus master, the upper byte is accessed directly, but the lower byte is accessed via a temporary register (TEMP). A data read from ADDR is performed as follows. When the upper byte is read, the upper byte value is transferred to the CPU and the lower byte value is transferred to TEMP. Next, when the lower byte is read, the TEMP contents are transferred to the CPU. When reading ADDR. always read the upper byte before the lower byte. It is possible to read only the upper byte, but if only the lower byte is read, incorrect data may be obtained. Figure 16.2 shows the data flow for ADDR access. Upper byte read Bus master (H'AA) Module data bus Bus interface TEMP (H'40) ADDRnH (H'AA) ADDRnL (H'40) (n = A to D) Lower byte read Bus master (H'40) Module data bus Bus interface TEMP (H'40) ADDRnH (H'AA) ADDRnL (H'40) (n = A to D) Figure 16.2 ADDR Access Operation (Reading H'AA40) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 611 of 1126 Section 16 A/D Converter 16.4 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Operation The A/D converter operates by successive approximation with 10-bit resolution. It has two operating modes: single mode and scan mode. 16.4.1 Single Mode (SCAN = 0) Single mode is selected when A/D conversion is to be performed on a single channel only. A/D conversion is started when the ADST bit is set to 1, according to the software or external trigger input. The ADST bit remains set to 1 during A/D conversion, and is automatically cleared to 0 when conversion ends. On completion of conversion, the ADF flag is set to 1. If the ADIE bit is set to 1 at this time, an ADI interrupt request is generated. The ADF flag is cleared by writing 0 after reading ADCSR. When the operating mode or analog input channel must be changed during analog conversion, to prevent incorrect operation, first clear the ADST bit to 0 in ADCSR to halt A/D conversion. After making the necessary changes, set the ADST bit to 1 to start A/D conversion again. The ADST bit can be set at the same time as the operating mode or input channel is changed. Typical operations when channel 1 (AN1) is selected in single mode are described next. Figure 16.3 shows a timing diagram for this example. [1] Single mode is selected (SCAN = 0), input channel AN1 is selected (CH3 = 0, CH2 = 0, CH1 = 0, CH0 = 1), the A/D interrupt is enabled (ADIE = 1), and A/D conversion is started (ADST = 1). [2] When A/D conversion is completed, the result is transferred to ADDRB. At the same time the ADF flag is set to 1, the ADST bit is cleared to 0, and the A/D converter becomes idle. [3] Since ADF = 1 and ADIE = 1, an ADI interrupt is requested. [4] The A/D interrupt handling routine starts. [5] The routine reads ADCSR, then writes 0 to the ADF flag. [6] The routine reads and processes the connection result (ADDRB). [7] Execution of the A/D interrupt handling routine ends. After that, if the ADST bit is set to 1, A/D conversion starts again and steps [2] to [7] are repeated. Page 612 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter Set* ADIE ADST A/D conversion starts Set* Set* Clear* Clear* ADF State of channel 0 (AN0) Idle State of channel 1 (AN1) Idle State of channel 2 (AN2) Idle State of channel 3 (AN3) Idle A/D conversion 1 Idle A/D conversion 2 Idle ADDRA ADDRB Read conversion result A/D conversion result 1 Read conversion result A/D conversion result 2 ADDRC ADDRD Note: * Vertical arrows ( ) indicate instructions executed by software. Figure 16.3 Example of A/D Converter Operation (Single Mode, Channel 1 Selected) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 613 of 1126 Section 16 A/D Converter 16.4.2 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Scan Mode (SCAN = 1) Scan mode is useful for monitoring analog inputs in a group of one or more channels. When the ADST bit is set to 1 by a software, timer or external trigger input, A/D conversion starts on the first channel in the group (AN0). When two or more channels are selected, after conversion of the first channel ends, conversion of the second channel (AN1) starts immediately. A/D conversion continues cyclically on the selected channels until the ADST bit is cleared to 0. The conversion results are transferred for storage into the ADDR registers corresponding to the channels. When the operating mode or analog input channel must be changed during analog conversion, to prevent incorrect operation, first clear the ADST bit to 0 in ADCSR to halt A/D conversion. After making the necessary changes, set the ADST bit to 1 to start A/D conversion again from the first channel (AN0). The ADST bit can be set at the same time as the operating mode or input channel is changed. Typical operations when three channels (AN0 to AN2) are selected in scan mode are described next. Figure 16.4 shows a timing diagram for this example. [1] Scan mode is selected (SCAN = 1), channel set 0 is selected (CH3 = 0), scan group 0 is selected (CH2 = 0), analog input channels AN0 to AN2 are selected (CH1 = 1, CH0 = 0), and A/D conversion is started (ADST = 1). [2] When A/D conversion of the first channel (AN0) is completed, the result is transferred to ADDRA. Next, conversion of the second channel (AN1) starts automatically. [3] Conversion proceeds in the same way through the third channel (AN2). [4] When conversion of all the selected channels (AN0 to AN2) is completed, the ADF flag is set to 1 and conversion of the first channel (AN0) starts again. If the ADIE bit is set to 1 at this time, an ADI interrupt is requested after A/D conversion ends. [5] Steps [2] to [4] are repeated as long as the ADST bit remains set to 1. When the ADST bit is cleared to 0, A/D conversion stops. After that, if the ADST bit is set to 1, A/D conversion starts again from the first channel (AN0). Page 614 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter Continuous A/D conversion execution Clear*1 Set*1 ADST Clear*1 ADF A/D conversion time State of channel 0 (AN0) Idle State of channel 1 (AN1) Idle State of channel 2 (AN2) Idle A/D conversion 1 Idle A/D conversion 2 Idle Idle A/D conversion 4 A/D conversion 5 *2 Idle A/D conversion 3 State of channel 3 (AN3) Idle Idle Transfer ADDRA A/D conversion result 1 ADDRB A/D conversion result 4 A/D conversion result 2 ADDRC A/D conversion result 3 ADDRD Notes: 1. Vertical arrows ( ) indicate instructions executed by software. 2. Data currently being converted is ignored. Figure 16.4 Example of A/D Converter Operation (Scan Mode, 3 Channels AN0 to AN2 Selected) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 615 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter 16.4.3 Input Sampling and A/D Conversion Time The A/D converter has a built-in sample-and-hold circuit. The A/D converter samples the analog input at a time tD after the ADST bit is set to 1, then starts conversion. Figure 16.5 shows the A/D conversion timing. Table 16.4 indicates the A/D conversion time. As indicated in figure 16.5, the A/D conversion time includes tD and the input sampling time. The length of tD varies depending on the timing of the write access to ADCSR. The total conversion time therefore varies within the ranges indicated in table 16.4. In scan mode, the values given in table 16.4 apply to the first conversion time. The values given in table 16.5 apply to the second and subsequent conversions. In both cases, set bits CKS1 and CKS0 in ADCR to give a conversion time of at least 10 s. (1) (2) Address Write signal Input sampling timing ADF tD t SPL t CONV Legend: (1) : (2) : tD : tSPL : tCONV : ADCSR write cycle ADCSR address A/D conversion start delay Input sampling time A/D conversion time Figure 16.5 A/D Conversion Timing Page 616 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter Table 16.4 A/D Conversion Time (Single Mode) CKS1 = 0 CKS0 = 0 Item CKS1 = 0 CKS0 = 1 CKS0 = 0 CKS0 = 1 Symbol Min Typ Max Min Typ Max Min Typ Max Min Typ Max A/D conversion start delay tD 18 -- 33 10 -- 17 6 -- 9 4 -- 5 Input sampling time tSPL -- 127 -- -- 63 -- -- 31 -- -- 15 -- A/D conversion time tCONV 515 -- 134 67 -- 68 530 259 -- 266 131 -- Note: Values in the table are the number of states. Table 16.5 A/D Conversion Time (Scan Mode) CKS1 CKS0 Conversion Time (State) 0 0 512 (Fixed) 1 256 (Fixed) 0 128 (Fixed) 1 64 (Fixed) 1 16.4.4 External Trigger Input Timing A/D conversion can be externally triggered. When the TRGS1 and TRGS0 bits are set to 11 in ADCR, external trigger input is enabled at the ADTRG pin. A falling edge at the ADTRG pin sets the ADST bit to 1 in ADCSR, starting A/D conversion. Other operations, in both single and scan modes, are the same as if the ADST bit has been set to 1 by software. Figure 16.6 shows the timing. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 617 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter ADTRG Internal trigger signal ADST A/D conversion Figure 16.6 External Trigger Input Timing 16.5 Interrupts The A/D converter generates an A/D conversion end interrupt (ADI) at the end of A/D conversion. ADI interrupt requests can be enabled or disabled by means of the ADIE bit in ADCSR. The DTC can be activated by an ADI interrupt. Having the converted data read by the DTC in response to an ADI interrupt enables continuous conversion to be achieved without imposing a load on software. The A/D converter interrupt source is shown in table 16.6. Table 16.6 A/D Converter Interrupt Source Interrupt Source Description DTC Activation ADI Interrupt due to end of conversion Possible Page 618 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 16.6 Section 16 A/D Converter Usage Notes The following points should be noted when using the A/D converter. Setting Range of Analog Power Supply and Other Pins: (1) Analog input voltage range The voltage applied to analog input pin ANn during A/D conversion should be in the range AVSS ANn Vref. (2) Relation between AVCC, AVSS and VCC, VSS As the relationship between AVSS and VSS, set AVSS = VSS. If the A/D converter is not used, set AVCC = VCC, and do not leave the AVCC and AVSS pins open or no account. (3) Vref input range The analog reference voltage input at the Vref pin set in the range Vref AVCC. If conditions (1), (2), and (3) above are not met, the reliability of the device may be adversely affected. Notes on Board Design: In board design, digital circuitry and analog circuitry should be as mutually isolated as possible, and layout in which digital circuit signal lines and analog circuit signal lines cross or are in close proximity should be avoided as far as possible. Failure to do so may result in incorrect operation of the analog circuitry due to inductance, adversely affecting A/D conversion values. Also, digital circuitry must be isolated from the analog input signals (AN0 to AN11), analog reference power supply (Vref), and analog power supply (AVCC) by the analog ground (AVSS). Also, the analog ground (AVSS) should be connected at one point to a stable digital ground (VSS) on the board. Notes on Noise Countermeasures: A protection circuit connected to prevent damage due to an abnormal voltage such as an excessive surge at the analog input pins (AN0 to AN11) and analog reference power supply (Vref) should be connected between AVCC and AVSS as shown in figure 16.7. Also, the bypass capacitors connected to AVCC and Vref and the filter capacitor connected to AN0 to AN11 must be connected to AVSS. If a filter capacitor is connected as shown in figure 16.7, the input currents at the analog input pins (AN0 to AN11) are averaged, and so an error may arise. Also, when A/D conversion is performed frequently, as in scan mode, if the current charged and discharged by the capacitance of the REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 619 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter sample-and-hold circuit in the A/D converter exceeds the current input via the input impedance (Rin), an error will arise in the analog input pin voltage. Careful consideration is therefore required when deciding the circuit constants. AVCC Vref 100 Rin*2 *1 AN0 to AN11 *1 0.1 F AVSS Notes: Values are reference values. 1. 10 F 0.01 F 2. Rin: Input impedance Figure 16.7 Example of Analog Input Protection Circuit Table 16.7 Analog Pin Specifications Item Min Max Unit Analog input capacitance -- 20 pF Permissible signal source impedance -- 5 k 10 k AN0 to AN11 To A/D converter 20 pF Note: Values are reference values. Figure 16.8 Analog Input Pin Equivalent Circuit Page 620 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter A/D Conversion Precision Definitions: H8S/2646 Group A/D conversion precision definitions are given below. * Resolution The number of A/D converter digital output codes * Offset error The deviation of the analog input voltage value from the ideal A/D conversion characteristic when the digital output changes from the minimum voltage value B'0000000000 (H'00) to B'0000000001 (H'01) (see figure 16.10). * Full-scale error The deviation of the analog input voltage value from the ideal A/D conversion characteristic when the digital output changes from B'1111111110 (H'3E) to B'1111111111 (H'3F) (see figure 16.10). * Quantization error The deviation inherent in the A/D converter, given by 1/2 LSB (see figure 16.9). * Nonlinearity error The error with respect to the ideal A/D conversion characteristic between the zero voltage and the full-scale voltage. Does not include the offset error, full-scale error, or quantization error. * Absolute precision The deviation between the digital value and the analog input value. Includes the offset error, full-scale error, quantization error, and nonlinearity error. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 621 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter Digital output Ideal A/D conversion characteristic 111 110 101 100 011 Quantization error 010 001 000 1 2 1024 1024 1022 1023 1024 1024 FS Analog input voltage Figure 16.9 A/D Conversion Precision Definitions (1) Full-scale error Digital output Ideal A/D conversion characteristic Nonlinearity error Actual A/D conversion characteristic FS Offset error Analog input voltage Figure 16.10 A/D Conversion Precision Definitions (2) Page 622 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 16 A/D Converter Permissible Signal Source Impedance: H8S/2646 Group analog input is designed so that conversion precision is guaranteed for an input signal for which the signal source impedance is 10 k or less. This specification is provided to enable the A/D converter's sample-and-hold circuit input capacitance to be charged within the sampling time; if the sensor output impedance exceeds 10 k, charging may be insufficient and it may not be possible to guarantee the A/D conversion precision. However, if a large capacitance is provided externally, the input load will essentially comprise only the internal input resistance of 10 k, and the signal source impedance is ignored. However, since a low-pass filter effect is obtained in this case, it may not be possible to follow an analog signal with a large differential coefficient (e.g., 5 mV/s or greater). When converting a high-speed analog signal, a low-impedance buffer should be inserted. Influences on Absolute Precision: Adding capacitance results in coupling with GND, and therefore noise in GND may adversely affect absolute precision. Be sure to make the connection to an electrically stable GND such as AVSS. Care is also required to insure that filter circuits do not communicate with digital signals on the mounting board, so acting as antennas. H8S/2646 Group Sensor output impedance to 5 k A/D converter equivalent circuit 10 k Sensor input Low-pass filter C to 0.1 F Cin = 15 pF 20 pF Figure 16.11 Example of Analog Input Circuit REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 623 of 1126 Section 16 A/D Converter Page 624 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer Section 17 Motor Control PWM Timer 17.1 Overview The H8S/2646 Group has an on-chip motor control PWM (pulse width modulator) with a maximum capability of 16 pulse outputs. 17.1.1 Features Features of the motor control PWM are given below. * Maximum of 16 pulse outputs Two 10-bit PWM channels, each with eight outputs. Each channel is provided with a 10-bit counter (PWCNT) and cycle register (PWCYR). Duty and output polarity can be set for each output. * Buffered duty registers Duty registers (PWDTR) are provided with buffer registers (PWBFR), with data transferred automatically every cycle. Channel 1 has four duty registers and four buffer registers. Channel 2 has eight duty registers and four buffer registers. * 0% to 100% duty A duty cycle of 0% to 100% can be set by means of a duty register setting. * Five operating clocks There is a choice of five operating clocks (, /2, /4, /8, /16). * On-chip output driver * High-speed access via internal 16-bit bus High-speed access is possible via a 16-bit bus interface. * Two interrupt sources An interrupt can be requested independently for each channel by a cycle register compare match. * Automatic transfer of register data Block transfer and one-word data transfer are possible by activating the data transfer controller (DTC). * Module stop mode As the initial setting, PWM operation is halted. Register access is enabled by clearing module stop mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 625 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer 17.1.2 Block Diagram Figure 17.1 shows a block diagram of PWM channel 1. , /2, /4, /8, /16 Interrupt request PWCR1 Internal data bus Bus interface Compare match 12 9 Legend: PWCR1: PWOCR1: PWPR1: PWCNT1: PWCYR1: PWDTR1A, 1C, 1E, 1G: PWBFR1A, 1C, 1E, 1G: 0 PWCNT1 PWOCR1 PWCYR1 PWPR1 12 9 0 Port control PWBFR1A PWDTR1A P/N P/N PWM1A PWM1B PWBFR1C PWDTR1C P/N P/N PWM1C PWM1D PWBFR1E PWDTR1E P/N P/N PWM1E PWM1F PWBFR1G PWDTR1G P/N P/N PWM1G PWM1H PWM control register 1 PWM output control register 1 PWM polarity register 1 PWM counter 1 PWM cycle register 1 PWM duty registers 1A, 1C, 1E, 1G PWM buffer registers 1A, 1C, 1E, 1G Figure 17.1 Block Diagram of PWM Channel 1 Page 626 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer Figure 17.2 shows a block diagram of PWM channel 2. , /2, /4, /8, /16 Interrupt request PWCR2 Compare match 12 9 0 Internal data bus Bus interface PWBFR2A PWBFR2B PWBFR2C PWBFR2D Legend: PWCR2: PWOCR2: PWPR2: PWCNT2: PWCYR2: PWDTR2A to PWDTR2H: PWBFR2A to PWBFR2D: PWCNT2 PWOCR2 PWCYR2 PWPR2 9 Port control 0 PWDTR2A P/N PWM2A PWDTR2B P/N PWM2B PWDTR2C P/N PWM2C PWDTR2D P/N PWM2D PWDTR2E P/N PWM2E PWDTR2F P/N PWM2F PWDTR2G P/N PWM2G PWDTR2H P/N PWM2H PWM control register 2 PWM output control register 2 PWM polarity register 2 PWM counter 2 PWM cycle register 2 PWM duty registers 2A to 2H PWM buffer registers 2A to 2D Figure 17.2 Block Diagram of PWM Channel 2 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 627 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer 17.1.3 Pin Configuration Table 17.1 shows the PWM pin configuration. Table 17.1 PWM Pin Configuration Name Abbreviation I/O Function PWM output pin 1A PWM1A Output Channel 1A PWM output PWM output pin 1B PWM1B Output Channel 1B PWM output PWM output pin 1C PWM1C Output Channel 1C PWM output PWM output pin 1D PWM1D Output Channel 1D PWM output PWM output pin 1E PWM1E Output Channel 1E PWM output PWM output pin 1F PWM1F Output Channel 1F PWM output PWM output pin 1G PWM1G Output Channel 1G PWM output PWM output pin 1H PWM1H Output Channel 1H PWM output PWM output pin 2A PWM2A Output Channel 2A PWM output PWM output pin 2B PWM2B Output Channel 2B PWM output PWM output pin 2C PWM2C Output Channel 2C PWM output PWM output pin 2D PWM2D Output Channel 2D PWM output PWM output pin 2E PWM2E Output Channel 2E PWM output PWM output pin 2F PWM2F Output Channel 2F PWM output PWM output pin 2G PWM2G Output Channel 2G PWM output PWM output pin 2H PWM2H Output Channel 2H PWM output Page 628 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 17.1.4 Section 17 Motor Control PWM Timer Register Configuration Table 17.2 shows the register configuration of the PWM. Table 17.2 PWM Registers Channel Name Abbreviation R/W Initial Value Address* 1 PWM control register 1 PWCR1 R/W H'C0 H'FC00 PWM output control register 1 PWOCR1 R/W H'00 H'FC02 PWM polarity register 1 PWPR1 R/W H'00 H'FC04 PWM cycle register 1 PWCYR1 R/W H'FFFF H'FC06 PWM buffer register 1A PWBFR1A R/W H'EC00 H'FC08 PWM buffer register 1C PWBFR1C R/W H'EC00 H'FC0A PWM buffer register 1E PWBFR1E R/W H'EC00 H'FC0C PWM buffer register 1G PWBFR1G R/W H'EC00 H'FC0E PWM control register 2 PWCR2 R/W H'C0 H'FC10 PWM output control register 2 PWOCR2 R/W H'00 H'FC12 2 All Note: 1 PWM polarity register 2 PWPR2 R/W H'00 H'FC14 PWM cycle register 2 PWCYR2 R/W H'FFFF H'FC16 PWM buffer register 2A PWBFR2A R/W H'EC00 H'FC18 PWM buffer register 2B PWBFR2B R/W H'EC00 H'FC1A PWM buffer register 2C PWBFR2C R/W H'EC00 H'FC1C PWM buffer register 2D PWBFR2D R/W H'EC00 H'FC1E Module stop control register D MSTPCRD R/W B'11****** H'FC60 1. Lower 16 bits of the address. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 629 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer 17.2 Register Descriptions 17.2.1 PWM Control Registers 1 and 2 (PWCR1, PWCR2) Bit 7 6 5 4 3 2 1 0 -- -- IE CMF CST CKS2 CKS1 CKS0 Initial value 1 1 0 0 0 0 0 0 Read/Write -- -- R/W R/(W)* R/W R/W R/W R/W Note: * Only 0 can be written, to clear the flag. PWCR is an 8-bit read/write register that performs interrupt enabling, starting/stopping, and counter (PWCNT) clock selection. It also contains a flag that indicates a compare match with the cycle register (PWCYR). PWCR1 is the channel 1 register, and PWCR2 is the channel 2 register. PWCR is initialized to H'C0 upon reset, and in standby mode, watch mode, subactive mode, subsleep mode, and module stop mode. Bits 7 and 6--Reserved: Bits 7 and 6 are reserved; they are always read as 1 and cannot be modified. Bit 5--Interrupt Enable (IE): Bit 5 selects enabling or disabling of an interrupt in the event of a compare match with the PWCYR register for the corresponding channel. Bit 5 IE Description 0 Interrupt disabled 1 Interrupt enabled Page 630 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer Bit 4--Compare Match Flag (CMF): Bit 4 indicates the occurrence of a compare match with the PWCYR register for the corresponding channel. Bit 4 CMF Description 0 [Clearing conditions] 1 (Initial value) * When 0 is written to CMF after reading CMF = 1 * When the DTC is activated by a compare match interrupt, and the DISEL bit in the DTC's MRB register is 0 [Setting condition] When PWCNT = PWCYR Bit 3--Counter Start (CST): Bit 3 selects starting or stopping of the PWCNT counter for the corresponding channel. Bit 3 CST Description 0 PWCNT is stopped 1 PWCNT is started (Initial value) Bits 2 to 0--Clock Select (CKS): Bits 2 to 0 select the clock for the PWCNT counter in the corresponding channel. Bit 2 CKS2 Bit 1 CKS1 Bit 0 CKS0 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /2 0 Internal clock: counts on /4 1 Internal clock: counts on /8 * Internal clock: counts on /16 1 1 * Description (Initial value) *: Don't care REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 631 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer 17.2.2 PWM Output Control Registers 1 and 2 (PWOCR1, PWOCR2) PWOCR1 Bit 7 6 5 4 3 2 1 0 OE1H OE1G OE1F OE1E OE1D OE1C OE1B OE1A Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 PWOCR2 Bit OE2H OE2G OE2F OE2E OE2D OE2C OE2B OE2A Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W PWOCR is an 8-bit read/write register that enables or disables PWM output. PWOCR1 controls outputs PWM1H to PWM1A, and PWOCR2 controls outputs PWM2H to PWM2A. PWOCR is initialized to H'00 upon reset, and in standby mode, watch mode, subactive mode, subsleep mode, and module stop mode. Bits 7 to 0--Output Enable (OE): Each of these bits enables or disables the corresponding PWM output. Bits 7 to 0 OE Description 0 PWM output is disabled 1 PWM output is enabled Page 632 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 17.2.3 Section 17 Motor Control PWM Timer PWM Polarity Registers 1 and 2 (PWPR1, PWPR2) PWPR1 Bit 7 6 5 4 3 2 1 0 OPS1H OPS1G OPS1F OPS1E OPS1D OPS1C OPS1B OPS1A Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 PWPR2 Bit OPS2H OPS2G OPS2F OPS2E OPS2D OPS2C OPS2B OPS2A Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W PWPR is an 8-bit read/write register that selects the PWM output polarity. PWPR1 controls outputs PWM1H to PWM1A, and PWPR2 controls outputs PWM2H to PWM2A. PWPR is initialized to H'00 upon reset, and in standby mode, watch mode, subactive mode, subsleep mode, and module stop mode. Bits 7 to 0--Output Polarity Select (OPS): Each of these bits selects the polarity of the corresponding PWM output. Bits 7 to 0 OPS Description 0 PWM direct output 1 PWM inverse output REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 633 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer 17.2.4 PWM Counters 1 and 2 (PWCNT1, PWCNT2) Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 -- -- -- -- -- -- Initial value 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 Read/Write -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- PWCNT is a 10-bit up-counter incremented by the input clock. The input clock is selected by clock select bits 2 to 0 (CKS2 to CKS0) in PWCR. PWCNT1 is used as the channel 1 time base, and PWCNT2 as the channel 2 time base. PWCNT is initialized to H'FC00 when the counter start bit (CST) in PWCR is cleared to 0, and also upon reset and in standby mode, watch mode, subactive mode, subsleep mode, and module stop mode. Page 634 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 17.2.5 Section 17 Motor Control PWM Timer PWM Cycle Registers 1 and 2 (PWCYR1, PWCYR2) Bit 15 14 13 12 11 10 -- -- -- -- -- -- 9 8 7 6 5 4 3 2 1 0 Initial value 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Read/Write -- -- -- -- -- -- R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W PWCYR is a 16-bit read/write register that sets the PWM conversion cycle. When a PWCYR compare match occurs, PWCNT is cleared and data is transferred from the buffer register (PWBFR) to the duty register (PWDTR). PWCYR1 is used for the channel 1 conversion cycle setting, and PWCYR2 for the channel 2 conversion cycle setting. PWCYR should be written to only while PWCNT is stopped. A value of H'FC00 must not be set. PWCYR is initialized to H'FFFF upon reset, and in standby mode, watch mode, subactive mode, subsleep mode, and module stop mode. Compare match PWCNT (lower 10 bits) Compare match 0 PWCYR (lower 10 bits) N-2 1 N-1 0 1 N Figure 17.3 Cycle Register Compare Match REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 635 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer 17.2.6 PWM Duty Registers 1A, 1C, 1E, 1G (PWDTR1A, 1C, 1E, 1G) Bit 15 14 13 -- -- -- OTS -- 12 11 10 -- DT9 DT8 DT7 DT6 DT5 DT4 DT3 DT2 DT1 DT0 9 8 7 6 5 4 3 2 1 0 Initial value 1 1 1 0 1 1 0 0 0 0 0 0 0 0 0 0 Read/Write -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- There are four PWDTR1x registers (PWDTR1A, 1C, 1E, 1G). PWDTR1A is used for outputs PWM1A and PWM1B, PWDTR1C for outputs PWM1C and PWM1D, PWDTR1E for outputs PWM1E and PWM1F, and PWDTR1G for outputs PWM1G and PWM1H. PWDTR1 cannot be read or written to directly. When a PWCYR1 compare match occurs, data is transferred from buffer register 1 (PWBFR1) to PWDTR1. PWDTR1x is initialized to H'EC00 when the counter start bit (CST) in PWCR1 is cleared to 0, and also upon reset and in standby mode, watch mode, subactive mode, subsleep mode, and module stop mode. Bits 15 to 13--Reserved: These bits cannot be read from or written to. Bit 12--Output Terminal Select (OTS): Bit 12 selects the pin used for PWM output according to the value in bit 12 in the buffer register that is transferred by a PWCYR1 compare match. Unselected pins output a low level (or a high level when the corresponding bit in PWPR1 is set to 1). Register Bit 12 OTS Description PWDTR1A 0 PWM1A output selected 1 PWM1B output selected PWDTR1C PWDTR1E PWDTR1G 0 PWM1C output selected 1 PWM1D output selected 0 PWM1E output selected 1 PWM1F output selected 0 PWM1G output selected 1 PWM1H output selected (Initial value) (Initial value) (Initial value) (Initial value) Bits 11 and 10--Reserved: These bits cannot be read from or written to. Page 636 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer Bits 9 to 0--Duty (DT): Bits 9 to 0 set the PWM output duty according to the values in bits 9 to 0 in the buffer register that is transferred by a PWCYR1 compare match. A high level (or a low level when the corresponding bit in PWPR1 is set to 1) is output from the time PWCNT1 is cleared by a PWCYR1 compare match until a PWDTR1 compare match occurs. When all the bits are 0, there is no high-level output period (no low-level output period when the corresponding bit in PWPR1 is set to 1). Compare match PWCNT1 (lower 10 bits) 0 1 M-2 PWCYR1 (lower 10 bits) N PWDTR1 (lower 10 bits) M M-1 M N-1 0 PWM output on selected pin PWM output on unselected pin Figure 17.4 Duty Register Compare Match (OPS = 0 in PWPR1) PWCNT1 (lower 10 bits) 0 N-2 1 PWCYR1 (lower 10 bits) N PWDTR1 (lower 10 bits) M N-1 0 PWM output (M = 0) PWM output (0 < M < N) PWM output (N M) Figure 17.5 Differences in PWM Output According to Duty Register Set Value (OPS = 0 in PWPR1) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 637 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer 17.2.7 PWM Buffer Registers 1A, 1C, 1E, 1G (PWBFR1A, 1C, 1E, 1G) Bit 15 14 13 -- -- -- OTS -- 12 -- DT9 DT8 DT7 DT6 DT5 DT4 DT3 DT2 DT1 DT0 Initial value 1 1 1 1 Read/Write -- -- -- R/W -- 0 11 1 10 9 0 8 0 7 0 6 0 5 0 4 3 0 0 2 0 1 0 0 0 -- R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W There are four 16-bit read/write PWBFR1 registers (PWBFR1A, 1C, 1E, 1G). When a PWCYR1 compare match occurs, data is transferred from PWBFR1A to PWDTR1A, from PWBFR1C to PWDTR1C, from PWBFR1E to PWDTR1E, and from PWBFR1G to PWDTR1G. PWBFR1 is initialized to H'EC00 upon reset, and in standby mode, watch mode, subactive mode, subsleep mode, and module stop mode. Bits 15 to 13--Reserved: These bits are always read as 1 and cannot be modified. Bit 12--Output Terminal Select (OTS): Bit 12 is the data transferred to bit 12 of PWDTR1. Bits 11 and 10--Reserved: These bits are always read as 1 and cannot be modified. Bits 9 to 0--Duty (DT): Bits 9 to 0 comprise the data transferred to bits 9 to 0 in PWDTR1. 17.2.8 PWM Duty Registers 2A to 2H (PWDTR2A to PWDTR2H) Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 -- -- -- -- -- -- DT9 DT8 DT7 DT6 DT5 DT4 DT3 DT2 DT1 DT0 Initial value 1 1 1 0 1 1 0 0 0 0 0 0 0 0 0 0 Read/Write -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- There are eight PWDTR2 registers (PWDTR2A to PWDTR2H). PWDTR2A is used for output PWM2A, PWDTR2B for output PWM2B, PWDTR2C for output PWM2C, PWDTR2D for output PWM2D, PWDTR2E for output PWM2E, PWDTR2F for output PWM2F, PWDTR2G for output PWM2G, and PWDTR2H for output PWM2H. PWDTR2 cannot be read or written to directly. When a PWCYR2 compare match occurs, data is transferred from buffer register 2 (PWBFR2) to PWDTR2. PWDTR2 is initialized to H'EC00 when the counter start bit (CST) in PWCR2 is cleared to 0, and also upon reset and in standby mode, watch mode, subactive mode, subsleep mode, and module stop mode. Page 638 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer Bits 15 to 10--Reserved: These bits cannot be read from or written to. Bits 9 to 0--Duty (DT): Bits 9 to 0 set the PWM output duty according to the values in bits 9 to 0 in the buffer register that is transferred by a PWCYR2 compare match. A high level (or a low level when the corresponding bit in PWPR2 is set to 1) is output from the time PWCNT2 is cleared by a PWCYR2 compare match until a PWDTR2 compare match occurs. When all the bits are 0, there is no high-level output period (no low-level output period when the corresponding bit in PWPR2 is set to 1). Compare match PWCNT2 (lower 10 bits) 0 1 M-2 PWCYR2 (lower 10 bits) N PWDTR2 (lower 10 bits) M M-1 M N-1 0 PWM output Figure 17.6 Duty Register Compare Match (OPS = 0 in PWPR2) PWCNT2 (lower 10 bits) 0 N-2 1 PWCYR2 (lower 10 bits) N PWDTR2 (lower 10 bits) M N-1 0 PWM output (M = 0) PWM output (0 < M < N) PWM output (N M) Figure 17.7 Differences in PWM Output According to Duty Register Set Value (OPS = 0 in PWPR2) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 639 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer 17.2.9 PWM Buffer Registers 2A to 2D (PWBFR2A to PWBFR2D) Bit 15 14 13 -- -- -- TDS -- 12 -- DT9 DT8 DT7 DT6 DT5 DT4 DT3 DT2 DT1 DT0 Initial value 1 1 1 1 Read/Write -- -- -- R/W -- 0 11 1 10 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 0 -- R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W There are four 16-bit read/write PWBFR2 registers (PWBFR2A to PWBFR2D). When a PWCYR2 compare match occurs, data is transferred from PWBFR2A to PWDTR2A or PWDTR2E, from PWBFR2B to PWDTR2B or PWDTR2F, from PWBFR2C to PWDTR2C or PWDTR2G, and from PWBFR2D to PWDTR2D or PWDTR2H. The transfer destination is determined by the value of the TDS bit. PWBFR2 is initialized to H'EC00 upon reset, and in standby mode, watch mode, subactive mode, subsleep mode, and module stop mode. Bits 15 to 13--Reserved: These bits are always read as 1 and cannot be modified. Bit 12--Transfer Destination Select (TDS): Bit 12 selects the PWDTR2 register to which data is to be transferred. Register PWBFR2A PWBFR2B PWBFR2C PWBFR2D Bit 12 TDS Description 0 PWDTR2A selected 1 PWDTR2E selected 0 PWDTR2B selected 1 PWDTR2F selected 0 PWDTR2C selected 1 PWDTR2G selected 0 PWDTR2D selected 1 PWDTR2H selected (Initial value) (Initial value) (Initial value) (Initial value) Bits 11 and 10--Reserved: These bits are always read as 1 and cannot be modified. Bits 9 to 0--Duty (DT): Bits 9 to 0 comprise the data transferred to bits 9 to 0 in PWDTR2. Page 640 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer 17.2.10 Module Stop Control Register D (MSTPCRD) Bit 7 6 MSTPD7 MSTPD6 Initial value 1 1 Read/Write R/W R/W 5 4 3 2 1 0 -- -- -- -- -- -- undefined undefined undefined undefined undefined undefined -- -- -- -- -- -- MSTPCRD is an 8-bit read/write register that performs module stop mode control. When the MSTPD7 bit is set to 1, PWM timer operation is stopped at the end of the bus cycle, and module stop mode is entered. For details, see section 22.5, Module Stop Mode. MSTPCRD is initialized by a reset and in hardware standby mode. It is not initialized by a manual reset or in software standby mode. Bit 7--Module Stop (MSTPD7): Bit 7 specifies the PWM module stop mode. Bit 7 MSTPD7 Description 0 PWM module stop mode is cleared 1 PWM module stop mode is set REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 641 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer 17.3 Bus Master Interface 17.3.1 16-Bit Data Registers PWCYR1 and 2, PWBFR1A, C, E, and G, and PWBFR2A to D are 16-bit registers. These registers are linked to the bus master by a 16-bit data bus, and can be read or written in 16-bit units. They cannot be read by 8-bit access; 16-bit access must always be used. Internal data bus H Bus master L Bus interface Module data bus PWCYR1 Figure 17.8 16-Bit Register Access Operation (Bus Master PWCYR1 (16 Bits)) 17.3.2 8-Bit Data Registers PWCR1/2, PWOCR1/2, and PWPR1/2 are 8-bit registers that can be read and written to in 8-bit units. These registers are linked to the bus master by a 16-bit data bus, and can be read or written by 16-bit access; in this case, the lower 8 bits will always be read as H'FF. Internal data bus H Bus master L Bus interface Module data bus PWCR1 Figure 17.9 8-Bit Register Access Operation (Bus Master PWCR1 (Upper 8 Bits)) Page 642 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer 17.4 Operation 17.4.1 PWM Channel 1 Operation PWM waveforms are output from pins PWM1A to PWM1H as shown in figure 17.10. Initial Settings: Set the PWM output polarity in PWPR1; enable the pins for PWM output with PWOCR1; select the clock to be input to PWCNT1 with bits CKS2 to CKS0 in PWCR1; set the PWM conversion cycle in PWCYR1; and set the first frame of data in PWBFR1A, PWBFR1C, PWBFR1E, and PWBFR1G. Activation: When the CST bit in PWCR1 is set to 1, a compare match between PWCNT1 and PWCYR1 is generated. Data is transferred from PWBFR1A to PWDTR1A, from PWBFR1C to PWDTR1C, from PWBFR1E to PWDTR1E, and from PWBFR1G to PWDTR1G. PWCNT1 starts counting up. At the same time the CMF bit in PWCR1 is set, so that, if the IE bit in PWCR1 has been set, an interrupt can be requested or the DTC can be activated. Waveform Output: The PWM outputs selected by the OTS bits in PWDTR1A, C, E, and G go high when a compare match occurs between PWCNT1 and PWCYR1. The PWM outputs not selected by the OTS bits are low. When a compare match occurs between PWCNT1 and PWDTR1A, C, E, and G, the corresponding PWM output goes low. If the corresponding bit in PWPR1 is set to 1, the output is inverted. PWCYR1 PWBFR1A PWDTR1A OTS (PWDTR1A) = 0 OTS (PWDTR1A) = 1 OTS (PWDTR1A) = 0 OTS (PWDTR1A) = 1 PWM1A PWM1B Figure 17.10 PWM Channel 1 Operation REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 643 of 1126 Section 17 Motor Control PWM Timer H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Next Frame: When a compare match occurs between PWCNT1 and PWCYR1, data is transferred from PWBFR1A to PWDTR1A, from PWBFR1C to PWDTR1C, from PWBFR1E to PWDTR1E, and from PWBFR1G to PWDTR1G. PWCNT1 is reset and starts counting up from H'000. The CMF bit in PWCR1 is set, and if the IE bit in PWCR1 has been set, an interrupt can be requested or the DTC can be activated. Stopping: When the CST bit in PWCR1 is cleared to 0, PWCNT1 is reset and stops. All PWM outputs go low (or high if the corresponding bit in PWPR1 is set to 1). 17.4.2 PWM Channel 2 Operation PWM waveforms are output from pins PWM2A to PWM2H as shown in figure 17.11. Initial Settings: Set the PWM output polarity in PWPR2; enable the pins for PWM output with PWOCR2; select the clock to be input to PWCNT2 with bits CKS2 to CKS0 in PWCR2; set the PWM conversion cycle in PWCYR2; and set the first frame of data in PWBFR2A, PWBFR2B, PWBFR2C, and PWBFR2D. Activation: When the CST bit in PWCR2 is set to 1, a compare match between PWCNT2 and PWCYR2 is generated. Data is transferred from PWBFR2A to PWDTR2A or PWDTR2E, from PWBFR2B to PWDTR2B or PWDTR2F, from PWBFR2C to PWDTR2C or PWDTR2G, and from PWBFR2D to PWDTR2D or PWDTR2H, according to the value of the TDS bit. PWCNT2 starts counting up. At the same time the CMF bit in PWCR2 is set, so that, if the IE bit in PWCR2 has been set, an interrupt can be requested or the DTC can be activated. Page 644 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer Waveform Output: The PWM outputs go high when a compare match occurs between PWCNT2 and PWCYR2. When a compare match occurs between PWCNT2 and PWDTR2A-H, the corresponding PWM output goes low. If the corresponding bit in PWPR2 is set to 1, the output is inverted. PWCYR2 PWBFR2A PWDTR2A PWDTR2E TDS (PWBFR2A) = 0 TDS (PWBFR2A) = 1 TDS (PWBFR2A) = 0 PWM2A PWM2E Figure 17.11 PWM Channel 2 Operation Next Frame: When a compare match occurs between PWCNT2 and PWCYR2, data is transferred from PWBFR2A to PWDTR2A or PWDTR2E, from PWBFR2B to PWDTR2B or PWDTR2F, from PWBFR2C to PWDTR2C or PWDTR2G, and from PWBFR2D to PWDTR2D or PWDTR2H, according to the value of the TDS bit. PWCNT2 is reset and starts counting up from H'000. The CMF bit in PWCR2 is set, and if the IE bit in PWCR2 has been set, an interrupt can be requested or the DTC can be activated. Stopping: When the CST bit in PWCR2 is cleared to 0, PWCNT2 is reset and stops. PWDTR2A to PWDTR2H are reset. All PWM outputs go low (or high if the corresponding bit in PWPR2 is set to 1). REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 645 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 17 Motor Control PWM Timer 17.5 Usage Note Contention between Buffer Register Write and Compare Match If a PWBFR write is performed in the state immediately after a cycle register compare match, the buffer register and duty register are overwritten. PWM output changed by the cycle register compare match is not changed in the overwrite of the duty register due to contention. This may result in unanticipated duty output. In the case of channel 2, the duty register used as the transfer destination is selected by the TDS bit of the buffer register when an overwrite of the duty register occurs due to contention. This can also result in an unintended overwrite of the duty register. Buffer register rewriting must be completed before automatic transfer by the DTC (data transfer controller), exception handling due to a compare match interrupt, or the occurrence of a cycle register compare match on detection of the rise of CMF (compare match flag) in PWCR. T1 Tw Tw T2 Address Write signal Buffer register address Compare match PWCNT (lower 10 bits) PWBFR PWDTR 0 N M N M PWM output CMF Figure 17.12 PWM Channel 1 Operation Page 646 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver Section 18 LCD Controller/Driver 18.1 Overview The H8S/2646 Group has an on-chip segment type LCD control circuit, LCD driver, and power supply circuit, enabling it to directly drive an LCD panel. 18.1.1 Features Features of the LCD controller/driver are given below. * Display capacity Internal Driver Duty Cycle H8S/2646, H8S/2646R, H8S/2645 H8S/2648, H8S/2648R, H8S/2647 Static 24 SEG 40 SEG 1/2 24 SEG 40 SEG 1/3 24 SEG 40 SEG 1/4 24 SEG 40 SEG * LCD RAM capacity 8 bits x 20 bytes (160 bits) Byte or word access to LCD RAM * The segment output pins can be used as ports in groups of four. * Common output pins not used because of the duty cycle can be used for common doublebuffering (parallel connection). With 1/2 duty, parallel connection of COM1 to COM2, and of COM3 to COM4, can be used In static mode, parallel connection of COM1 to COM2, COM3, and COM4 can be used * Choice of 11 frame frequencies * A or B waveform selectable by software * Built-in power supply split-resistance * Display possible in operating modes other than standby mode and module stop mode * Module stop mode As the initial setting, LCD operation is halted. Access to registers and LCD RAM is enabled by clearing module stop mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 647 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver 18.1.2 Block Diagram Figure 18.1 shows a block diagram of the LCD controller/driver. LPVCC V1 LCD drive power supply V2 V3 M /8 to /1024 VSS CL2 Common data latch SUB Common driver COM1 COM4 Internal data bus H8S/2646R*1 H8S/2648R*2 LPCR LCR LCR2 Display timing generator 24-bit shift register*1 CL1 SEG24 SEG23 SEG22 SEG21 SEG20 SEG40 SEG39 SEG38 SEG37 SEG36 SEG1 SEG1 Segment driver 40-bit shift register*2 LCD RAM 20 bytes SEGn, DO Legend: LPCR: LCD port control register LCR: LCD control register LCR2: LCD control register 2 Notes: 1. In the H8S/2646, H8S/2646R, and H8S/2645. 2. In the H8S/2648, H8S/2648R, and H8S/2647. Figure 18.1 Block Diagram of LCD Controller/Driver Page 648 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 18.1.3 Section 18 LCD Controller/Driver Pin Configuration Table 18.1 shows the LCD controller/driver pin configuration. Table 18.1 Pin Configuration Name Abbreviation I/O Function Segment output pins SEG24 to SEG1 (H8S/2646, H8S/2646R, H8S/2645) Output LCD segment drive pins All pins are multiplexed as port pins (setting programmable) SEG40 to SEG1 (H8S/2648, H8S/2648R, H8S/2647) Common output pins COM4 to COM1 LCD power supply pins V1, V2, V3 18.1.4 Output LCD common drive pins Pins can be used in parallel with static or 1/2 duty -- Used when a bypass capacitor is connected externally, and when an external power supply circuit is used Register Configuration Table 18.2 shows the register configuration of the LCD controller/driver. Table 18.2 LCD Controller/Driver Registers Name Abbreviation R/W Initial Value 1 Address* LCD port control register LPCR R/W H'00 H'FC30 LCD control register LCR R/W H'80 H'FC31 LCD control register 2 LCR2 R/W H'60 H'FC32 LCD RAM -- R/W Undefined H'FC40 to H'FC53 Module stop control register D MSTPCRD R/W B'11****** H'FC60 Note: 1. Lower 16 bits of the address. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 649 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver 18.2 Register Descriptions 18.2.1 LCD Port Control Register (LPCR) Bit 7 6 5 4 3 2 1 0 DTS1 DTS0 CMX -- SGS3 SGS2 SGS1 SGS0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W -- R/W R/W R/W R/W LPCR is an 8-bit read/write register which selects the duty cycle, LCD driver, and pin functions. LPCR is initialized to H'00 upon reset and in standby mode. Bits 7 to 5--Duty Cycle Select 1 and 0 (DTS1, DTS0), Common Function Select (CMX): The combination of DTS1 and DTS0 selects static, 1/2, 1/3, or 1/4 duty. CMX specifies whether or not the same waveform is to be output from multiple pins to increase the common drive power when not all common pins are used because of the duty setting. Bit 7 DTS1 Bit 6 DTS0 Bit 5 CMX Duty Cycle Common Drivers Notes 0 0 0 Static COM1 COM4, COM3, and COM2 can be used as ports (Initial value) COM4 to COM1 COM4, COM3, and COM2 output the same waveform as COM1 COM2 to COM1 COM4 and COM3 can be used as ports COM4 to COM1 COM4 outputs the same waveform as COM3, and COM2 outputs the same waveform as COM1 COM3 to COM1 COM4 can be used as a port COM4 to COM1 Do not use COM4 COM4 to COM1 -- 1 1 0 1/2 duty 1 1 0 0 1/3 duty 1 1 * 1/4 duty *: Don't care Note: COM4 to COM1 function as ports when the setting of SGS3 to SGS0 is 0000 (initial value). Bit 4--Reserved: This bit is always read as 0 and should only be written with 0. Page 650 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver Bits 3 to 0--Segment Driver Select 3 to 0 (SGS3 to SGS0): Bits 3 to 0 select the segment drivers to be used. * H8S/2646, H8S/2646R, H8S/2645 Function of Pins SEG24 to SEG1 Bit 3 Bit 2 Bit 1 Bit 0 SEG24 to SGS3 SGS2 SGS1 SGS0 SEG17 SEG16 to SEG13 SEG12 to SEG9 SEG8 to SEG5 SEG4 to SEG1 0 0 0 1 1 1 * 0 Notes 0 Port Port Port Port Port Initial value (external expansion enabled) 1 SEG Port Port Port Port 0 SEG SEG Port Port Port External expansion not possible 1 SEG SEG SEG Port Port 0 SEG SEG SEG SEG Port SEG SEG SEG SEG 1 SEG 1 * Setting Setting Setting Setting Setting prohibited prohibited prohibited prohibited prohibited * * Setting Setting Setting Setting Setting prohibited prohibited prohibited prohibited prohibited *: Don't care Note: When using external expansion, set a value of 0000 for SGS3 to SGS0. When the setting of SGS3 to SGS0 is 0000, COM4 to COM1 also function as ports. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 651 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver * H8S/2648, H8S/2648R, H8S/2647 Function of Pins SEG40 to SEG1 Bit 3 Bit 2 Bit 1 Bit 0 SEG40 SEG32 SEG28 SEG24 SEG20 SEG16 SEG12 SEG8 SEG4 to to to to to to to to SGS3 SGS2 SGS1 SGS0 SEG33 SEG29 SEG25 SEG21 SEG17 SEG13 SEG9 0 0 0 1 1 0 1 1 * * to SEG5 SEG1 Notes 0 Port Port Port Port Port Port Port Port Port Initial value (external expansion enabled) 1 SEG Port Port Port Port Port Port Port Port 0 SEG SEG Port Port Port Port Port Port Port External expansion not possible 1 SEG SEG SEG Port Port Port Port Port Port 0 SEG SEG SEG SEG Port Port Port Port Port 1 SEG SEG SEG SEG SEG Port Port Port Port 0 SEG SEG SEG SEG SEG SEG Port Port Port 1 SEG SEG SEG SEG SEG SEG SEG Port Port 0 SEG SEG SEG SEG SEG SEG SEG SEG Port 1 SEG SEG SEG SEG SEG SEG SEG SEG SEG *: Don't care Note: When using external expansion, set a value of 0000 for SGS3 to SGS0. When the setting of SGS3 to SGS0 is 0000, COM4 to COM1 also function as ports. Page 652 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 18.2.2 Section 18 LCD Controller/Driver LCD Control Register (LCR) Bit 7 6 5 4 3 2 1 0 -- PSW ACT DISP CKS3 CKS2 CKS1 CKS0 Initial value 1 0 0 0 0 0 0 0 Read/Write -- R/W R/W R/W R/W R/W R/W R/W LCR is an 8-bit read/write register which performs LCD power supply split-resistance connection control and display data control, and selects the frame frequency. LCR is initialized to H'80 upon reset and in standby mode. Bit 7--Reserved: This bit is always read as 1 and cannot be modified. Bit 6--LCD Power Supply Split-Resistance Connection Control (PSW): Bit 6 can be used to disconnect the LCD power supply split-resistance from VCC when LCD display is not required in a power-down mode, or when an external power supply is used. When the ACT bit is cleared to 0, and also in standby mode, the LCD power supply split-resistance is disconnected from VCC regardless of the setting of this bit. Bit 6 PSW Description 0 LCD power supply split-resistance is disconnected from VCC 1 LCD power supply split-resistance is connected to VCC (Initial value) Bit 5--Display Function Activate (ACT): Bit 5 specifies whether or not the LCD controller/driver is used. Clearing this bit to 0 halts operation of the LCD controller/driver. The LCD drive power supply ladder resistance is also turned off, regardless of the setting of the PSW bit. However, register contents are retained. Bit 5 ACT Description 0 LCD controller/driver operation halted 1 LCD controller/driver operates REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 (Initial value) Page 653 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver Bit 4--Display Data Control (DISP): Bit 4 specifies whether the LCD RAM contents are displayed or blank data is displayed regardless of the LCD RAM contents. Bit 4 DISP Description 0 Blank data is displayed 1 LCD RAM data is display (Initial value) Bits 3 to 0--Frame Frequency Select 3 to 0 (CKS3 to CKS0): Bits 3 to 0 select the operating clock and the frame frequency. In subactive mode, watch mode, and subsleep mode, the system clock () is halted, and therefore display operations are not performed if one of the clocks from /8 to /1024 is selected. If LCD display is required in these modes, SUB, SUB/2, or SUB/4 must be selected as the operating clock. Frame Frequency* Bit 3 CKS3 Bit 2 CKS2 Bit 1 CKS1 Bit 0 CKS0 Operating Clock = 20 MHz 0 * 0 0 SUB 1 SUB/2 128 Hz* 2 64 Hz* 1 * SUB/4 2 32 Hz* 0 0 /8 4880 Hz 1 /16 2440 Hz 0 /32 1220 Hz 1 /64 610 Hz 0 0 /128 305 Hz 1 /256 152.6 Hz 1 0 /512 76.3 Hz 1 /1024 38.1 Hz 1 0 1 1 2 1 (Initial value) *: Don't care Notes: 1. When 1/3 duty is selected, the frame frequency is 4/3 times the value shown. 2. This is the frame frequency when SUB = 32.768 kHz. Page 654 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 18.2.3 Section 18 LCD Controller/Driver LCD Control Register 2 (LCR2) Bit 7 6 5 4 3 2 1 0 LCDAB -- -- -- -- -- -- -- Initial value 0 1 1 0 0 0 0 0 Read/Write R/W -- -- -- -- -- -- -- LCR2 is an 8-bit read/write register which controls switching between the A waveform and B waveform. LCR2 is initialized to H'60 upon reset and in standby mode. Bit 7--A Waveform/B Waveform Switching Control (LCDAB): Bit 7 specifies whether the A waveform or B waveform is used as the LCD drive waveform. Bit 7 LCDAB Description 0 Drive using A waveform 1 Drive using B waveform (Initial value) Bits 6 and 5--Reserved: These bits are always read as 1 and cannot be modified. Bits 4 to 0--Reserved: These bits are always read as 0 and should only be written with 0. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 655 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver 18.2.4 Module Stop Control Register D (MSTPCRD) Bit 7 6 MSTPD7 MSTPD6 Initial value 1 1 Read/Write R/W R/W 5 4 3 2 1 0 -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- MSTPCRD is an 8-bit read/write register that performs module stop mode control. When the MSTPD6 bit is set to 1, LCD controller/driver operation is stopped at the end of the bus cycle, and module stop mode is entered. For details, see section 22.5, Module Stop Mode. MSTPCRD is initialized to H'FF by a reset and in hardware standby mode. It is not initialized software standby mode. Bit 6--Module Stop (MSTPD6): Bit 6 specifies the LCD controller/driver module stop mode. Bit 6 MSTPD6 Description 0 LCD controller/driver module stop mode is cleared 1 LCD controller/driver module stop mode is set Page 656 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 18.3 Operation 18.3.1 Settings up to LCD Display Section 18 LCD Controller/Driver To perform LCD display, the hardware and software related items described below must first be determined. Hardware Settings * Using 1/2 duty When 1/2 duty is used, interconnect pins V2 and V3 as shown in figure 18.2. LPVCC V1 V2 V3 VSS Figure 18.2 Handling of LCD Drive Power Supply when Using 1/2 Duty * Panel display As the impedance of the built-in power supply split-resistance is large, the display may lack sharpness when driving a panel. In this case, refer to section 18.3.4, Boosting the LCD Drive Power Supply. When static or 1/2 duty is selected, the common output drive capability can be increased. Set CMX to 1 when selecting the duty cycle. In this mode, with a static duty cycle pins COM4 to COM1 output the same waveform, and with 1/2 duty the COM1 waveform is output from pins COM2 and COM1, and the COM2 waveform is output from pins COM4 and COM3. * LCD drive power supply setting With the H8S/2646 Group, there are two ways of providing LCD power: by using the on-chip power supply circuit, or by using an external power supply circuit. When an external power supply circuit is used for the LCD drive power supply, connect the external power supply to the V1 pin. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 657 of 1126 Section 18 LCD Controller/Driver H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Software Settings * Duty selection Any of four duty cycles--static, 1/2 duty, 1/3 duty, or 1/4 duty--can be selected with bits DTS1 and DTS0. * Segment selection The segment drivers to be used can be selected with bits SGS3 to SGS0. * Frame frequency selection The frame frequency can be selected by setting bits CKS3 to CKS0. The frame frequency should be selected in accordance with the LCD panel specification. For the clock selection method in watch mode, subactive mode, and subsleep mode, see section 18.3.3, Operation in Power-Down Modes. * A or B waveform selection Either the A or B waveform can be selected as the LCD waveform to be used by means of LCDAB. * LCD drive power supply selection When an external power supply circuit is used, turn the LCD drive power supply off with the PSW bit. Page 658 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 18.3.2 Section 18 LCD Controller/Driver Relationship between LCD RAM and Display H8S/2646, H8S/2646R, H8S/2645 The relationship between the LCD RAM and the display segments differs according to the duty cycle. LCD RAM maps for the different duty cycles are shown in figures 18.3 to 18.6. After setting the registers required for display, data is written to the part corresponding to the duty using the same kind of instruction as for ordinary RAM, and display is started automatically when turned on. Word- or byte-access instructions can be used for RAM setting. Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 H'FC40 Space not used for display H'FC47 H'FC48 SEG2 SEG2 SEG2 SEG2 SEG1 SEG1 SEG1 SEG1 Display space H'FC53 SEG24 SEG24 SEG24 SEG24 SEG23 SEG23 SEG23 SEG23 COM4 COM3 COM2 COM1 COM4 COM3 COM2 COM1 Figure 18.3 LCD RAM Map (1/4 Duty) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 659 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 H'FC40 Space not used for display H'FC47 SEG2 H'FC48 SEG2 SEG2 SEG1 SEG1 SEG1 Display space H'FC53 SEG24 SEG24 SEG24 SEG23 SEG23 SEG23 COM3 COM2 COM1 COM3 COM2 COM1 Figure 18.4 LCD RAM Map (1/3 Duty) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 H'FC40 Space not used for display H'FC43 H'FC44 SEG4 SEG4 SEG3 SEG3 SEG2 SEG2 SEG1 SEG1 Display space H'FC49 SEG24 SEG24 SEG23 SEG23 SEG22 SEG22 SEG21 SEG21 Space not used for display H'FC53 COM2 COM1 COM2 COM1 COM2 COM1 COM2 COM1 Figure 18.5 LCD RAM Map (1/2 Duty) Page 660 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 H'FC40 H'FC41 H'FC42 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 H'FC44 SEG24 SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 Space not used for display Display space Space not used for display H'FC53 COM1 COM1 COM1 COM1 COM1 COM1 COM1 COM1 Figure 18.6 LCD RAM Map (Static Mode) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 661 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver H8S/2648, H8S/2648R, H8S/2647 The relationship between the LCD RAM and the display segments differs according to the duty cycle. LCD RAM maps for the different duty cycles are shown in figures 18.7 to 18.10. After setting the registers required for display, data is written to the part corresponding to the duty using the same kind of instruction as for ordinary RAM, and display is started automatically when turned on. Word- or byte-access instructions can be used for RAM setting. Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 SEG2 SEG2 SEG2 SEG2 SEG1 SEG1 SEG1 SEG1 H'FC53 SEG40 SEG40 SEG40 SEG40 SEG39 SEG39 SEG39 SEG39 COM4 COM2 COM1 COM4 COM2 COM1 H'FC40 COM3 COM3 Figure 18.7 LCD RAM Map (1/4 Duty) Page 662 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 7 Section 18 LCD Controller/Driver Bit 6 Bit 5 Bit 4 H'FC40 SEG2 SEG2 H'FC53 SEG40 COM3 Bit 3 Bit 2 Bit 1 Bit 0 SEG2 SEG1 SEG1 SEG1 SEG40 SEG40 SEG39 SEG39 SEG39 COM2 COM1 COM3 COM2 COM1 Space not used for display Figure 18.8 LCD RAM Map (1/3 Duty) H'FC40 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 SEG4 SEG4 SEG3 SEG3 SEG2 SEG2 SEG1 SEG1 Display space SEG40 SEG40 SEG39 SEG39 SEG38 SEG38 SEG37 SEG37 H'FC49 Space not used for display H'FC53 COM2 COM1 COM2 COM1 COM2 COM1 COM2 COM1 Figure 18.9 LCD RAM Map (1/2 Duty) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 663 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver H'FC40 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 Display space SEG40 SEG39 SEG38 SEG37 SEG36 SEG35 SEG34 SEG33 H'FC44 Space not used for display H'FC53 COM1 COM1 COM1 COM1 COM1 COM1 COM1 COM1 Figure 18.10 LCD RAM Map (Static Mode) Page 664 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver 1 frame 1 frame M M Data Data V1 V2 V3 VSS COM1 V1 V2 V3 VSS COM2 V1 V2 V3 VSS COM3 V1 V2 V3 VSS COM1 COM2 V1 V2 V3 VSS V1 V2 V3 VSS COM3 V1 V2 V3 VSS COM4 V1 V2 V3 VSS SEGn V1 V2 V3 VSS SEGn (a) Waveform with 1/4 duty (b) Waveform with 1/3 duty 1 frame 1 frame M M Data Data V1 V2, V3 VSS COM1 COM2 V1 V2, V3 VSS SEGn V1 V2, V3 VSS (c) Waveform with 1/2 duty V1 COM1 VSS V1 SEGn VSS (d) Waveform with static output Figure 18.11 Output Waveforms for Each Duty Cycle (A Waveform) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 665 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver 1 frame 1 frame 1 frame 1 frame 1 frame M M Data Data V1 V2 V3 VSS COM1 V1 V2 V3 VSS COM2 V1 V2 V3 VSS COM3 1 frame 1 frame 1 frame V1 V2 V3 VSS COM1 V1 V2 V3 VSS COM2 V1 V2 V3 VSS COM3 V1 V2 V3 VSS COM4 V1 V2 V3 VSS SEGn (a) Waveform with 1/4 duty 1 frame 1 frame 1 frame V1 V2 V3 VSS SEGn (b) Waveform with 1/3 duty 1 frame 1 frame 1 frame 1 frame 1 frame M M Data Data V1 V2, V3 VSS COM1 COM2 V1 V2, V3 VSS SEGn V1 V2, V3 VSS (c) Waveform with 1/2 duty V1 COM1 VSS V1 SEGn VSS (d) Waveform with static output Figure 18.12 Output Waveforms for Each Duty Cycle (B Waveform) Page 666 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver Table 18.3 Output Levels Data M Static 1/2 duty 1/3 duty 1/4 duty 18.3.3 0 0 1 1 0 1 0 1 Common output V1 VSS V1 VSS Segment output V1 VSS VSS V1 Common output V2, V3 V2, V3 V1 VSS Segment output V1 VSS VSS V1 Common output V3 V2 V1 VSS Segment output V2 V3 VSS V1 Common output V3 V2 V1 VSS Segment output V2 V3 VSS V1 Operation in Power-Down Modes In the H8S/2646 Group, the LCD controller/driver can be operated even in the power-down modes. The operating state of the LCD controller/driver in the power-down modes is summarized in table 18.4. In subactive mode, watch mode, and subsleep mode, the system clock oscillator stops, and therefore, unless SUB, SUB/2, or SUB/4 has been selected by bits CKS3 to CKS0, the clock will not be supplied and display will halt. Since there is a possibility that a direct current will be applied to the LCD panel in this case, it is essential to ensure that SUB, SUB/2, or SUB/4 is selected. In active (medium-speed) mode, the system clock is switched, and therefore CKS3 to CKS0 must be modified to ensure that the frame frequency does not change. In the software standby mode the segment output and common output pins switch to highimpedance status. In this case if a port's DDR or PCR bit is set to 1, a DC voltage could be applied to the LCD panel. Therefore, DDR and PCR must never be set to 1 for ports being used for segment output or common output. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 667 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 18 LCD Controller/Driver Table 18.4 Power-Down Modes and Display Operation Reset Active Sleep Watch Subactive Subsleep Module Standby Standby Runs Runs Runs Stops Stops Stops Stops Stops*4 SUB Runs Runs Runs Runs Runs Runs Stops*1 Stops*4 Stops Stops Stops Stops Stops Stops Stops*2 Stops Stops Functions Functions Functions*3 Functions*3 Functions*3 Stops*2 Stops Mode Clock Display ACT = 0 operation ACT = 1 Notes: 1. The subclock oscillator does not stop, but clock supply is halted. 2. The LCD drive power supply is turned off regardless of the setting of the PSW bit. 3. Display operation is performed only if SUB, SUB/2, or SUB/4 is selected as the operating clock. 4. The clock supplied to the LCD stops. 18.3.4 Boosting the LCD Drive Power Supply When a panel is driven, the on-chip power supply capacity may be insufficient. The recommended solution in this case is to connect bypass capacitors of around 0.1 to 0.3 F to pins V1 to V3, or to connect a new split-resistance externally, as shown in figure 18.13. LPVCC VR V1 R H8S/2646 Group R = several k to several M V2 R C = 0.1 to 0.3 F V3 R VSS Figure 18.13 Connection of External Split-Resistance Page 668 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 18.4 Usage Notes 18.4.1 Disabling LCD Indications Section 18 LCD Controller/Driver To disable LCD output, use the SGS bits to switch the pins from SEG to port operation, then clear the ACT bit the LCR register to 0. If the ACT bit is cleared while the pins are still set to SEG output, DC voltage may be applied directly to the LCD panel. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 669 of 1126 Section 18 LCD Controller/Driver Page 670 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 19 RAM Section 19 RAM 19.1 Overview The H8S/2646, H8S/2646R, H8S/2648, and H8S/2648R have 4 kbytes, and H8S/2645 and H8S/2647 have 2 kbytes of on-chip high-speed static RAM. The RAM is connected to the CPU by a 16-bit data bus, enabling one-state access by the CPU to both byte data and word data. This makes it possible to perform fast word data transfer. The on-chip RAM can be enabled or disabled by means of the RAM enable bit (RAME) in the system control register (SYSCR). 19.1.1 Block Diagram Figure 19.1 shows a block diagram of the on-chip RAM. Internal data bus (upper 8 bits) Internal data bus (lower 8 bits) H'FFE000* H'FFE001 H'FFE002 H'FFE003 H'FFE004 H'FFE005 H'FFEFBE H'FFEFBF H'FFFFC0 H'FFFFC1 H'FFFFFE H'FFFFFF Note: * Addresses starting from H'FFE800 in the H8S/2645 and H8S/2647. Figure 19.1 Block Diagram of RAM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 671 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 19 RAM 19.1.2 Register Configuration The on-chip RAM is controlled by SYSCR. Table 19.1 shows the address and initial value of SYSCR. Table 19.1 RAM Register Name Abbreviation R/W Initial Value Address* System control register SYSCR R/W H'01 H'FDE5 Note: * Lower 16 bits of the address. 19.2 Register Descriptions 19.2.1 System Control Register (SYSCR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 MACS -- INTM1 INTM0 NMIEG -- -- RAME 0 0 0 0 0 0 0 1 R/W -- R/W R/W R/W R/W -- R/W The on-chip RAM is enabled or disabled by the RAME bit in SYSCR. For details of other bits in SYSCR, see section 3.2.2, System Control Register (SYSCR). Bit 0--RAM Enable (RAME): Enables or disables the on-chip RAM. The RAME bit is initialized when the reset state is released. It is not initialized in software standby mode. Bit 0 RAME Description 0 On-chip RAM is disabled 1 On-chip RAM is enabled Page 672 of 1126 (Initial value) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 19.3 Section 19 RAM Operation When the RAME bit is set to 1, accesses to addresses H'FFE000 to H'FFEFBF and H'FFFFC0 to H'FFFFFF in the H8S/2646, H8S/2646R, H8S/2648, and H8S/2648R, to addresses H'FFE7C0 to H'FFEFBF and H'FFFFC0 to H'FFFFFF in the H8S/2645 and H8S/2647, are directed to the onchip RAM. When the RAME bit is cleared to 0, the off-chip address space is accessed. Since the on-chip RAM is connected to the CPU by an internal 16-bit data bus, it can be written to and read in byte or word units. Each type of access can be performed in one state. Even addresses use the upper 8 bits, and odd addresses use the lower 8 bits. Word data must start at an even address. 19.4 Usage Notes When Using the DTC: DTC register information can be located in addresses H'FFEBC0 to H'FFEFBF. When the DTC is used, the RAME bit must not be cleared to 0. Reserved Areas: Addresses H'FFB000 to H'FFDFFF in the H8S/2646, H8S/2646R, H8S/2648, and H8S/2648R and addresses H'FFB000 to H'FFE7BF in the H8S/2645 and H8S/2647 are reserved areas that cannot be read or written to. When the RAME bit is cleared to 0, the off-chip address space is accessed. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 673 of 1126 Section 19 RAM H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Page 674 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM Section 20 ROM 20.1 Features The LSI (H8S/2646R, H8S/2648R) has 128 kbytes of on-chip flash memory. The features of the flash memory are summarized below. * Four flash memory operating modes Program mode Erase mode Program-verify mode Erase-verify mode * Programming/erase methods The flash memory is programmed 128 bytes at a time. Block erase (in single-block units) can be performed. To erase the entire flash memory, each block must be erased in turn. Block erasing can be performed as required on 1 kbyte, 8 kbytes, 16 kbytes, 28 kbytes, and 32 kbytes blocks. * Programming/erase times The flash memory programming time is 10 ms (typ.) for simultaneous 128-byte programming, equivalent to 78 s (typ.) per byte, and the erase time is 100 ms (typ.). * Reprogramming capability The flash memory can be reprogrammed up to 100 times. * On-board programming modes There are two modes in which flash memory can be programmed/erased/verified on-board: Boot mode User program mode * Automatic bit rate adjustment With data transfer in boot mode, the LSI's bit rate can be automatically adjusted to match the transfer bit rate of the host. * Flash memory emulation in RAM Flash memory programming can be emulated in real time by overlapping a part of RAM onto flash memory. * Protect modes There are two protect modes, hardware and software, which allow protected status to be designated for flash memory program/erase/verify operations. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 675 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM * Programmer mode Flash memory can be programmed/erased in programmer mode, using a PROM programmer, as well as in on-board programming mode. 20.2 Overview 20.2.1 Block Diagram Internal address bus Module bus Internal data bus (16 bits) FLMCR1 FLMCR2 EBR1 Bus interface/controller Operating mode FWE pin Mode pin EBR2 RAMER FLPWCR Flash memory (128 kbytes) Legend: FLMCR1: FLMCR2: EBR1: EBR2: RAMER: FLPWCR: Flash memory control register 1 Flash memory control register 2 Erase block register 1 Erase block register 2 RAM emulation register Flash memory power control register Figure 20.1 Block Diagram of Flash Memory Page 676 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 20.2.2 Section 20 ROM Mode Transitions When the mode pins and the FWE pin are set in the reset state and a reset-start is executed, the microcomputer enters an operating mode as shown in figure 20.2. In user mode, flash memory can be read but not programmed or erased. The boot, user program and programmer modes are provided as modes to write and erase the flash memory. MD1 = 1, MD2 = 1, FWE = 0 *1 RES = 0 User mode (on-chip ROM enabled) FWE = 1 Reset state RES = 0 MD1 = 1, MD2 = 1, FWE = 1 RES = 0 FWE = 0 User program mode *2 MD1 = 1 MD2 = 0, FWE = 1 RES = 0 Programmer mode *1 Boot mode On-board programming mode Notes: Only make a transition between user mode and user program mode when the CPU is not accessing the flash memory. 1. RAM emulation possible 2. This LSI transits to programmer mode by using the dedicated PROM programmer. Figure 20.2 Flash Memory State Transitions REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 677 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM 20.2.3 On-Board Programming Modes Boot Mode 1. Initial state The old program version or data remains written in the flash memory. The user should prepare the programming control program and new application program beforehand in the host. 2. Programming control program transfer When boot mode is entered, the boot program in the LSI (originally incorporated in the chip) is started and the programming control program in the host is transferred to RAM via SCI communication. The boot program required for flash memory erasing is automatically transferred to the RAM boot program area. Host Host Programming control program New application program New application program LSI LSI SCI Boot program Flash memory SCI Boot program RAM RAM Flash memory Boot program area Application program (old version) Application program (old version) 3. Flash memory initialization The erase program in the boot program area (in RAM) is executed, and the flash memory is initialized (to H'FF). In boot mode, total flash memory erasure is performed, without regard to blocks. Programming control program 4. Writing new application program The programming control program transferred from the host to RAM is executed, and the new application program in the host is written into the flash memory. Host Host New application program LSI LSI SCI Boot program Flash memory RAM Flash memory Boot program area Flash memory preprogramming erase Programming control program SCI Boot program RAM Boot program area New application program Programming control program Program execution state Page 678 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM User Program Mode 1. Initial state The FWE assessment program that confirms that user program mode has been entered, and the program that will transfer the programming/erase control program from flash memory to on-chip RAM should be written into the flash memory by the user beforehand. The programming/erase control program should be prepared in the host or in the flash memory. 2. Programming/erase control program transfer When user program mode is entered, user software confirms this fact, executes transfer program in the flash memory, and transfers the programming/erase control program to RAM. Host Host Programming/ erase control program New application program New application program LSI LSI SCI Boot program Flash memory SCI Boot program RAM RAM Flash memory FWE assessment program FWE assessment program Transfer program Transfer program Programming/ erase control program Application program (old version) Application program (old version) 3. Flash memory initialization The programming/erase program in RAM is executed, and the flash memory is initialized (to H'FF). Erasing can be performed in block units, but not in byte units. 4. Writing new application program Next, the new application program in the host is written into the erased flash memory blocks. Do not write to unerased blocks. Host Host New application program LSI LSI SCI Boot program Flash memory RAM FWE assessment program Flash memory RAM FWE assessment program Transfer program Transfer program Programming/ erase control program Flash memory erase SCI Boot program Programming/ erase control program New application program Program execution state REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 679 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM 20.2.4 Flash Memory Emulation in RAM Emulation should be performed in user mode or user program mode. When the emulation block set in RAMER is accessed while the emulation function is being executed, data written in the overlap RAM is read. SCI Flash memory RAM Emulation block Overlap RAM (emulation is performed on data written in RAM) Application program Execution state Figure 20.3 Reading Overlap RAM Data in User Mode or User Program Mode When overlap RAM data is confirmed, the RAMS bit is cleared, RAM overlap is released, and writes should actually be performed to the flash memory. When the programming control program is transferred to RAM, ensure that the transfer destination and the overlap RAM do not overlap, as this will cause data in the overlap RAM to be rewritten. Page 680 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM SCI Flash memory RAM Programming data Overlap RAM (programming data) Programming control program execution state Application program Figure 20.4 Writing Overlap RAM Data in User Program Mode 20.2.5 Differences between Boot Mode and User Program Mode Table 20.1 Differences between Boot Mode and User Program Mode Boot Mode User Program Mode Total erase Yes Yes Block erase No Yes Programming control program* (2) (1) (2) (3) (1) Erase/erase-verify (2) Program/program-verify (3) Emulation Note: * To be provided by the user, in accordance with the recommended algorithm. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 681 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM 20.2.6 Block Configuration The flash memory is divided into two 32 kbytes blocks, one 28 kbytes block, one 16 kbytes block, two 8 kbytes blocks, and four 1 kbyte blocks. Address H'00000 1 kbyte x 4 28 kbytes 16 kbytes 8 kbytes 128 kbytes 8 kbytes 32 kbytes 32 kbytes Address H'1FFFF Figure 20.5 Block Configuration Page 682 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 20.3 Section 20 ROM Pin Configuration The flash memory is controlled by means of the pins shown in table 20.2. Table 20.2 Pin Configuration Pin Name Abbreviation I/O Function Reset RES Input Reset Flash write enable FWE Input Flash program/erase protection by hardware Mode 2 MD2 Input Sets LSI operating mode Mode 1 MD1 Input Sets LSI operating mode Mode 0 MD0 Input Sets LSI operating mode Port F0 PF0 Input Sets LSI operating mode when MD2 = MD1 = MD0 = 0 Port 16 P16 Input Sets LSI operating mode when MD2 = MD1 = MD0 = 0 Port 14 P14 Input Sets LSI operating mode when MD2 = MD1 = MD0 = 0 Transmit data TxD1 Output Serial transmit data output Receive data RxD1 Input Serial receive data input REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 683 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM 20.4 Register Configuration The registers used to control the on-chip flash memory when enabled are shown in table 20.3. Table 20.3 Register Configuration Register Name Abbreviation R/W Initial Value Address* Flash memory control register 1 FLMCR1* 4 FLMCR2* R/W H'00* 2 H'FFA8 R H'FFA9 EBR1* 4 EBR2* R/W H'00 3 H'00* H'FFAA R/W 3 H'00* H'FFAB R/W H'00 H'FEDB R/W 3 H'00* H'FFAC 4 Flash memory control register 2 4 Erase block register 1 Erase block register 2 4 RAM emulation register RAMER* 4 Flash memory power control register FLPWCR* 1 Notes: 1. Lower 16 bits of the address. 2. When a high level is input to the FWE pin, the initial value is H'80. 3. When a low level is input to the FWE pin, or if a high level is input and the SWE bit in FLMCR1 is not set, these registers are initialized to H'00. 4. FLMCR1, FLMCR2, EBR1, EBR2, RAMER, and FLPWCR are 8-bit registers. Use byte access on these registers. 20.5 Register Descriptions 20.5.1 Flash Memory Control Register 1 (FLMCR1) Bit: Initial value: R/W: 7 6 5 4 3 2 1 0 FWE --* SWE ESU PSU EV PV E P 0 0 0 0 0 0 0 R R/W R/W R/W R/W R/W R/W R/W Note: * Determined by the state of the FWE pin. FLMCR1 is an 8-bit register used for flash memory operating mode control. Program-verify mode or erase-verify mode for addresses H'00000 to H'1FFFF is entered by setting SWE bit to 1 when FWE = 1, then setting the PV or EV bit. Program mode for addresses H'00000 to H'1FFFF is entered by setting SWE bit to 1 when FWE = 1, then setting the PSU bit, and finally setting the P bit. Erase mode for addresses H'00000 to H'1FFFF is entered by setting SWE bit to 1 when FWE = 1, then setting the ESU bit, and finally setting the E bit. FLMCR1 is initialized by a reset, and in hardware standby mode and software standby mode. Its initial value is H'80 when a high level is input to the FWE pin, and H'00 when a low level is input. When on-chip flash memory is disabled, a read will return H'00, and writes are invalid. Page 684 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM Writes are enabled only in the following cases: Writes to bit SWE of FLMCR1 enabled when FWE = 1, to bits ESU, PSU, EV, and PV when FWE = 1 and SWE = 1, to bit E when FWE = 1, SWE = 1 and ESU = 1, and to bit P when FWE = 1, SWE = 1, and PSU = 1. Bit 7--Flash Write Enable Bit (FWE): Sets hardware protection against flash memory programming/erasing. Bit 7 FWE Description 0 When a low level is input to the FWE pin (hardware-protected state) 1 When a high level is input to the FWE pin Bit 6--Software Write Enable Bit (SWE): Enables or disables flash memory programming and erasing. Set this bit when setting bits 5 to 0, bits 7 to 0 of EBR1, and bits 1 and 0 of EBR2. Bit 6 SWE Description 0 Writes disabled 1 Writes enabled (Initial value) [Setting condition] When FWE = 1 Bit 5--Erase Setup Bit (ESU): Prepares for a transition to erase mode. Set this bit to 1 before setting the E bit in FLMCR1 to 1. Do not set the SWE, PSU, EV, PV, E, or P bit at the same time. Bit 5 ESU Description 0 Erase setup cleared 1 Erase setup (Initial value) [Setting condition] When FWE = 1 and SWE = 1 Bit 4--Program Setup Bit (PSU): Prepares for a transition to program mode. Set this bit to 1 before setting the P bit in FLMCR1 to 1. Do not set the SWE, ESU, EV, PV, E, or P bit at the same time. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 685 of 1126 Section 20 ROM Bit 4 PSU Description 0 Program setup cleared 1 Program setup H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM (Initial value) [Setting condition] When FWE = 1 and SWE = 1 Bit 3--Erase-Verify (EV): Selects erase-verify mode transition or clearing. Do not set the SWE, ESU, PSU, PV, E, or P bit at the same time. Bit 3 EV Description 0 Erase-verify mode cleared 1 Transition to erase-verify mode (Initial value) [Setting condition] When FWE = 1 and SWE = 1 Bit 2--Program-Verify (PV): Selects program-verify mode transition or clearing. Do not set the SWE, ESU, PSU, EV, E, or P bit at the same time. Bit 2 PV Description 0 Program-verify mode cleared 1 Transition to program-verify mode (Initial value) [Setting condition] When FWE = 1 and SWE = 1 Bit 1--Erase (E): Selects erase mode transition or clearing. Do not set the SWE, ESU, PSU, EV, PV, or P bit at the same time. Bit 1 E Description 0 Erase mode cleared 1 Transition to erase mode (Initial value) [Setting condition] When FWE = 1, SWE = 1, and ESU = 1 Page 686 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM Bit 0--Program (P): Selects program mode transition or clearing. Do not set the SWE, PSU, ESU, EV, PV, or E bit at the same time. Bit 0 P Description 0 Program mode cleared 1 Transition to program mode (Initial value) [Setting condition] When FWE = 1, SWE = 1, and PSU = 1 20.5.2 Flash Memory Control Register 2 (FLMCR2) Bit: 7 6 5 4 3 2 1 0 FLER -- -- -- -- -- -- -- Initial value: 0 0 0 0 0 0 0 0 R/W: R R R R R R R R Note: FLMCR2 is a read-only register, and should not be written to. FLMCR2 is an 8-bit register used for flash memory operating mode control. FLMCR2 is initialized to H'00 by a reset, and in hardware standby mode and software standby mode. When on-chip flash memory is disabled, a read will return H'00. Bit 7--Flash Memory Error (FLER): Indicates that an error has occurred during an operation on flash memory (programming or erasing). When FLER is set to 1, flash memory goes to the errorprotection state. Bit 7 FLER Description 0 Flash memory is operating normally Flash memory program/erase protection (error protection) is disabled [Clearing condition] Reset or hardware standby mode 1 An error has occurred during flash memory programming/erasing Flash memory program/erase protection (error protection) is enabled [Setting condition] See section 20.8.3 Error Protection (Initial value) Bits 6 to 0--Reserved: These bits always read 0. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 687 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM 20.5.3 Erase Block Register 1 (EBR1) Bit: Initial value: R/W: 7 6 5 4 3 2 1 0 EB7 EB6 EB5 EB4 EB3 EB2 EB1 EB0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W EBR1 is an 8-bit register that specifies the flash memory erase area block by block. EBR1 is initialized to H'00 by a reset, in hardware standby mode and software standby mode, when a low level is input to the FWE pin, and when a high level is input to the FWE pin and the SWE bit in FLMCR1 is not set. When a bit in EBR1 is set to 1, the corresponding block can be erased. Other blocks are erase-protected. Only one of the bits of EBR1 and EBR2 combined can be set. Do not set more than one bit, as this will cause all the bits in both EBR1 and EBR2 to be automatically cleared to 0. When on-chip flash memory is disabled, a read will return H'00, and writes are invalid. The flash memory block configuration is shown in table 20.4. 20.5.4 Erase Block Register 2 (EBR2) Bit: Initial value: R/W: 7 6 5 4 3 2 1 0 -- -- -- -- -- -- EB9 EB8 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W EBR2 is an 8-bit register that specifies the flash memory erase area block by block. EBR2 is initialized to H'00 by a reset, in hardware standby mode and software standby mode, when a low level is input to the FWE pin. Bit 0 will be initialized to 0 if bit SWE of FLMCR1 is not set, even though a high level is input to pin FWE. When a bit in EBR2 is set to 1, the corresponding block can be erased. Other blocks are erase-protected. Only one of the bits of EBR1 and EBR2 combined can be set. Do not set more than one bit, as this will cause all the bits in both EBR1 and EBR2 to be automatically cleared to 0. Bits 7 to 2 are reserved and must only be written with 0. When on-chip flash memory is disabled, a read will return H'00, and writes are invalid. The flash memory block configuration is shown in table 20.4. Page 688 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM Table 20.4 Flash Memory Erase Blocks Block (Size) Addresses EB0 (1 kbyte) H'000000 to H'0003FF EB1 (1 kbyte) H'000400 to H'0007FF EB2 (1 kbyte) H'000800 to H'000BFF EB3 (1 kbyte) H'000C00 to H'000FFF EB4 (28 kbytes) H'001000 to H'007FFF EB5 (16 kbytes) H'008000 to H'00BFFF EB6 (8 kbytes) H'00C000 to H'00DFFF EB7 (8 kbytes) H'00E000 to H'00FFFF EB8 (32 kbytes) H'010000 to H'017FFF EB9 (32 kbytes) H'018000 to H'01FFFF 20.5.5 RAM Emulation Register (RAMER) Bit: 7 6 5 4 3 2 1 0 -- -- -- -- RAMS RAM2 RAM1 RAM0 Initial value: 0 0 0 0 0 0 0 0 R/W: R R R/W R/W R/W R/W R/W R/W RAMER specifies the area of flash memory to be overlapped with part of RAM when emulating real-time flash memory programming. RAMER initialized to H'00 by a reset and in hardware standby mode. It is not initialized by software standby mode. RAMER settings should be made in user mode or user program mode. Flash memory area divisions are shown in table 20.5. To ensure correct operation of the emulation function, the ROM for which RAM emulation is performed should not be accessed immediately after this register has been modified. Normal execution of an access immediately after register modification is not guaranteed. Bits 7 and 6--Reserved: These bits always read 0. Bits 5 and 4--Reserved: Only 0 may be written to these bits. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 689 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM Bit 3--RAM Select (RAMS): Specifies selection or non-selection of flash memory emulation in RAM. When RAMS = 1, all flash memory block are program/erase-protected. Bit 3 RAMS Description 0 Emulation not selected (Initial value) Program/erase-protection of all flash memory blocks is disabled 1 Emulation selected Program/erase-protection of all flash memory blocks is enabled Bits 2 to 0--Flash Memory Area Selection (RAM2 to RAM0): These bits are used together with bit 3 to select the flash memory area to be overlapped with RAM. (See table 20.5.) Table 20.5 Flash Memory Area Divisions Addresses Block Name RAMS RAM2 RAM1 RAM0 H'FFE000 to H'FFE3FF RAM area 1 kbyte 0 * * * H'000000 to H'0003FF EB0 (1 kbyte) 1 0 0 * H'000400 to H'0007FF EB1 (1 kbyte) 1 0 1 * H'000800 to H'000BFF EB2 (1 kbyte) 1 1 0 * H'000C00 to H'000FFF EB3 (1 kbyte) 1 1 1 * *: Don't care Page 690 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 20.5.6 Section 20 ROM Flash Memory Power Control Register (FLPWCR) Bit: 7 6 5 4 3 2 1 0 PDWND -- -- -- -- -- -- -- 0 0 0 0 0 0 0 0 R/W R R R R R R R Initial value: R/W: FLPWCR enables or disables a transition to the flash memory power-down mode when the LSI switches to subactive mode. Bit 7--Power-Down Disable (PDWND): Enables or disables a transition to the flash memory power-down mode when the LSI switches to subactive mode. For details, see section 20.12, Flash Memory and Power-Down States. Bit 7 PDWND Description 0 Transition to flash memory power-down mode enabled 1 Transition to flash memory power-down mode disabled (Initial value) Bits 6 to 0--Reserved: These bits always read 0. 20.6 On-Board Programming Modes When pins are set to on-board programming mode and a reset-start is executed, a transition is made to the on-board programming state in which program/erase/verify operations can be performed on the on-chip flash memory. There are two on-board programming modes: boot mode and user program mode. The pin settings for transition to each of these modes are shown in table 20.6. For a diagram of the transitions to the various flash memory modes, see figure 20.2. Table 20.6 Setting On-Board Programming Modes Mode Boot mode Expanded mode FWE MD2 MD1 MD0 1 0 1 0 0 1 1 1 1 0 1 1 1 Single-chip mode User program mode Expanded mode Single-chip mode REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 1 Page 691 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM 20.6.1 Boot Mode When boot mode is used, the flash memory programming control program must be prepared in the host beforehand. The SCI channel to be used is set to asynchronous mode. When a reset-start is executed after the LSI's pins have been set to boot mode, the boot program built into the LSI is started and the programming control program prepared in the host is serially transmitted to the LSI via the SCI. In the LSI, the programming control program received via the SCI is written into the programming control program area in on-chip RAM. After the transfer is completed, control branches to the start address of the programming control program area and the programming control program execution state is entered (flash memory programming is performed). The transferred programming control program must therefore include coding that follows the programming algorithm given later. The system configuration in boot mode is shown in figure 20.6, and the boot mode execution procedure in figure 20.7. LSI Flash memory Host Write data reception Verify data transmission RxD1 SCI1 On-chip RAM TxD1 Figure 20.6 System Configuration in Boot Mode Page 692 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM Start Set pins to boot mode and execute reset-start Host transfers data (H'00) continuously at prescribed bit rate LSI measures low period of H'00 data transmitted by host LSI calculates bit rate and sets value in bit rate register After bit rate adjustment, LSI transmits one H'00 data byte to host to indicate end of adjustment Host confirms normal reception of bit rate adjustment end indication (H'00), and transmits one H'55 data byte After receiving H'55, LSI transmits one H'AA data byte to host Host transmits number of programming control program bytes (N), upper byte followed by lower byte LSI transmits received number of bytes to host as verify data (echo-back) n=1 Host transmits programming control program sequentially in byte units LSI transmits received programming control program to host as verify data (echo-back) n+1n Transfer received programming control program to on-chip RAM No n = N? Yes End of transmission Check flash memory data, and if data has already been written, erase all blocks After confirming that all flash memory data has been erased, LSI transmits one H'AA data byte to host Execute programming control program transferred to on-chip RAM Note: If a memory cell does not operate normally and cannot be erased, one H'FF byte is transmitted as an erase error, and the erase operation and subsequent operations are halted. Figure 20.7 Boot Mode Execution Procedure REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 693 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM Automatic SCI Bit Rate Adjustment Start bit D0 D1 D2 D3 D4 D5 D6 Low period (9 bits) measured (H'00 data) D7 Stop bit High period (1 or more bits) When boot mode is initiated, the LSI measures the low period of the asynchronous SCI communication data (H'00) transmitted continuously from the host. The SCI transmit/receive format should be set as follows: 8-bit data, 1 stop bit, no parity. The LSI calculates the bit rate of the transmission from the host from the measured low period, and transmits one H'00 byte to the host to indicate the end of bit rate adjustment. The host should confirm that this adjustment end indication (H'00) has been received normally, and transmit one H'55 byte to the LSI. If reception cannot be performed normally, initiate boot mode again (reset), and repeat the above operations. Depending on the host's transmission bit rate and the LSI's system clock frequency, there will be a discrepancy between the bit rates of the host and the LSI. Set the host transfer bit rate at 19,200, 9,600 or 4,800 bps to operate the SCI properly. Table 20.7 shows host transfer bit rates and system clock frequencies for which automatic adjustment of the LSI bit rate is possible. The boot program should be executed within this system clock range. Table 20.7 System Clock Frequencies for which Automatic Adjustment of LSI Bit Rate is Possible Host Bit Rate System Clock Frequency for Which Automatic Adjustment of LSI Bit Rate is Possible 19,200 bps 16 to 20 MHz 9,600 bps 8 to 20 MHz 4,800 bps 4 to 20 MHz Note: The system clock frequency used in boot mode is generated by an external crystal oscillator element. PLL frequency multiplication is not used. Page 694 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM On-Chip RAM Area Divisions in Boot Mode: In boot mode, the RAM area is divided into an area used by the boot program and an area to which the programming control program is transferred via the SCI, as shown in figure 20.8. The boot program area cannot be used until the execution state in boot mode switches to the programming control program transferred from the host. H'FFE000 Boot program area (2 kbytes) H'FFE7FF Programming control program area (1.9 kbytes) H'FFEFBF Note: The boot program area cannot be used until a transition is made to the execution state for the programming control program transferred to RAM. Note also that the boot program remains in this area of the on-chip RAM even after control branches to the programming control program. Figure 20.8 RAM Areas in Boot Mode Notes on Use of Boot Mode: * When the chip comes out of reset in boot mode, it measures the low-level period of the input at the SCI's RxD1 pin. The reset should end with RxD1 high. After the reset ends, it takes approximately 100 states before the chip is ready to measure the low-level period of the RxD1 pin. * In boot mode, if any data has been programmed into the flash memory (if all data is not 1), all flash memory blocks are erased. Boot mode is for use when user program mode is unavailable, such as the first time on-board programming is performed, or if the program activated in user program mode is accidentally erased. * Interrupts cannot be used while the flash memory is being programmed or erased. * The RxD1 and TxD1 pins should be pulled up on the board. * Before branching to the programming control program (RAM area H'FFE7FF), the chip terminates transmit and receive operations by the on-chip SCI (channel 1) (by clearing the RE REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 695 of 1126 Section 20 ROM H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM and TE bits in SCR to 0), but the adjusted bit rate value remains set in BRR. The transmit data output pin, TxD1, goes to the high-level output state (PA1DDR = 1, PA1DR = 1). The contents of the CPU's internal general registers are undefined at this time, so these registers must be initialized immediately after branching to the programming control program. In particular, since the stack pointer (SP) is used implicitly in subroutine calls, etc., a stack area must be specified for use by the programming control program. The initial values of other on-chip registers are not changed. * Boot mode can be entered by making the pin settings shown in table 20.6 and executing a reset-start. Boot mode can be cleared by driving the reset pin low, waiting at least 20 states, then setting 1 the FWE pin and mode pins, and executing reset release* . Boot mode can also be cleared by a WDT overflow reset. Do not change the mode pin input levels in boot mode, and do not drive the FWE pin low while the boot program is being executed or while flash memory is being programmed or 2 erased* . * If the mode pin input levels are changed (for example, from low to high) during a reset, the state of ports with multiplexed address functions and bus control output pins (AS, RD, HWR) 3 will change according to the change in the microcomputer's operating mode* . Therefore, care must be taken to make pin settings to prevent these pins from becoming output signal pins during a reset, or to prevent collision with signals outside the microcomputer. Notes: 1. Mode pin and FWE pin input must satisfy the mode programming setup time (tMDS = 4 states) with respect to the reset release timing. 2. For more information on FWE application/cancel, refer to section 20.13, Flash Memory Programming and Erasing Precautions. 3. See appendix D, Pin States. 20.6.2 User Program Mode When set to user program mode, the chip can program and erase its flash memory by executing a user program/erase control program. Therefore, on-board reprogramming of the on-chip flash memory can be carried out by providing on-board means of FWE control and supply of programming data, and storing a program/erase control program in part of the program area as necessary. To select user program mode, select a mode that enables the on-chip flash memory (modes 6 or 7), and apply a high level to the FWE pin. In this mode, on-chip supporting modules other than flash memory operate as they normally would in modes 6 and 7. Page 696 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM The flash memory itself cannot be read while the SWE bit is set to 1 to perform programming or erasing, so the control program that performs programming and erasing should be run in on-chip RAM or external memory. When a program is in external memory, an instruction for writing to flash memory and the following instruction must be in the on-chip RAM. Figure 20.9 shows the procedure for executing the program/erase control program when transferred to on-chip RAM. Write the FWE assessment program and transfer program (and the program/erase control program if necessary) beforehand MD2, MD1, MD0 = 110, 111 Reset-start Transfer program/erase control program to RAM Branch to program/erase control program in RAM area FWE = high* Execute program/erase control program (flash memory rewriting) Clear FWE Branch to flash memory application program Note: * Do not apply a constant high level to the FWE pin. Apply a high level to the FWE pin only when the flash memory is programmed or erased. Also, while a high level is applied to the FWE pin, the watchdog timer should be activated to prevent overprogramming or overerasing due to program runaway, etc. For more information on FWE application/cancel, refer to section 20.13, Flash Memory Programming and Erasing Precautions. Figure 20.9 User Program Mode Execution Procedure REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 697 of 1126 Section 20 ROM 20.7 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Flash Memory Programming/Erasing A software method, using the CPU, is employed to program and erase flash memory in the onboard programming modes. There are four flash memory operating modes: program mode, erase mode, program-verify mode, and erase-verify mode. Transitions to these modes for addresses H'000000 to H'01FFFF are made by setting the PSU, ESU, P, E, PV, and EV bits in FLMCR1. The flash memory cannot be read while being programmed or erased. Therefore, the program (user program) that controls flash memory programming/erasing should be located and executed in on-chip RAM or external memory. When a program is in external memory, an instruction for writing to flash memory and the following instruction must be in the on-chip RAM. The DTC must not be activated before or after execution of an instruction for writing to flash memory. In the following operation descriptions, wait times after setting or clearing individual bits in FLMCR1 are given as parameters; for details of the wait times, see section 23.7, Flash Memory Characteristics. Notes: 1. Operation is not guaranteed if setting/resetting of the SWE, ESU, PSU, EV, PV, E, and P bits in FLMCR1 is executed by a program in flash memory. 2. When programming or erasing, set FWE to 1 (programming/erasing will not be executed if FWE = 0). 3. Programming must be executed in the erased state. Do not perform additional programming on addresses that have already been programmed. Page 698 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM *3 E=1 Erase setup state Erase mode E=0 Normal mode FWE = 1 ESU = 1 *1 ESU = 0 FWE = 0 *2 EV = 1 On-board SWE = 1 Software programming mode programming Software programming enable disable state SWE = 0 state Erase-verify mode EV = 0 PSU = 1 *4 P=1 PSU = 0 Program setup state Program mode P=0 PV = 1 PV = 0 Program-verify mode Notes: In order to perform a normal read of flash memory, SWE must be cleared to 0. Also note that verify-reads can be performed during the programming/erasing process. 1. : Normal mode : On-board programming mode 2. Do not make a state transition by setting or clearing multiple bits simultaneously. 3. After a transition from erase mode to the erase setup state, do not enter erase mode without passing through the software programming enable state. 4. After a transition from program mode to the program setup state, do not enter program mode without passing through the software programming enable state. Figure 20.10 FLMCR1 Bit Settings and State Transitions REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 699 of 1126 Section 20 ROM 20.7.1 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Program Mode When writing data or programs to flash memory, the program/program-verify flowchart shown in figure 20.11 should be followed. Performing programming operations according to this flowchart will enable data or programs to be written to flash memory without subjecting the device to voltage stress or sacrificing program data reliability. Programming should be carried out 128 bytes at a time. The wait times after bits are set or cleared in the flash memory control register 1 (FLMCR1) and the maximum number of programming operations (N) are shown in table 23.10. Following the elapse of (tsswe) s or more after the SWE bit is set to 1 in FLMCR1, 128-byte data is written consecutively to the write addresses. The lower 8 bits of the first address written to must be H'00 and H'80, 128 consecutive byte data transfers are performed. The program address and program data are latched in the flash memory. A 128-byte data transfer must be performed even if writing fewer than 128 bytes; in this case, H'FF data must be written to the extra addresses. Next, the watchdog timer (WDT) is set to prevent overprogramming due to program runaway, etc. Set a value greater than (tspsu + tsp + tcp + tcpsu) s as the WDT overflow period. Preparation for entering program mode (program setup) is performed next by setting the PSU bit in FLMCR1. The operating mode is then switched to program mode by setting the P bit in FLMCR1 after the elapse of at least (tspsu) s. The time during which the P bit is set is the flash memory programming time. Make a program setting so that the time for one programming operation is within the range of (tsp) s. The wait time after P bit setting must be changed according to the degree of progress through the programming operation. For details see "Notes on Program/Program-Verify Procedure", in section 20.7.2. Page 700 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 20.7.2 Section 20 ROM Program-Verify Mode In program-verify mode, the data written in program mode is read to check whether it has been correctly written in the flash memory. After the elapse of the given programming time, clear the P bit in FLMCR1, then wait for at least (tcp) s before clearing the PSU bit to exit program mode. After exiting program mode, the watchdog timer setting is also cleared. The operating mode is then switched to program-verify mode by setting the PV bit in FLMCR1. Before reading in program-verify mode, a dummy write of H'FF data should be made to the addresses to be read. The dummy write should be executed after the elapse of (tspv) s or more. When the flash memory is read in this state (verify data is read in 16-bit units), the data at the latched address is read. Wait at least (tspvr) s after the dummy write before performing this read operation. Next, the originally written data is compared with the verify data, and reprogram data is computed (see figure 20.11) and transferred to RAM. After verification of 128 bytes of data has been completed, exit program-verify mode, wait for at least (tcpv) s, then clear the SWE bit in FLMCR1. If reprogramming is necessary, set program mode again, and repeat the program/program-verify sequence as before. The maximum number of repetitions of the program/program-verify sequence is indicated by the maximum programming count (N). Leave a wait time of at least (tcswe) s after clearing SWE. Notes on Program/Program-Verify Procedure 1. In order to perform 128-byte-unit programming, the lower 8 bits of the write start address must be H'00 or H'80. 2. When performing continuous writing of 128-byte data to flash memory, byte-unit transfer should be used. 128-byte data transfer is necessary even when writing fewer than 128 bytes of data. Write H'FF data to the extra addresses. 3. Verify data is read in word units. 4. The write pulse is applied and a flash memory write executed while the P bit in FLMCR1 is set. In the H8S/2646, write pulses should be applied as follows in the program/program-verify procedure to prevent voltage stress on the device and loss of write data reliability. a. After write pulse application, perform a verify-read in program-verify mode and apply a write pulse again for any bits read as 1 (reprogramming processing). When all the 0-write bits in the 128-byte write data are read as 0 in the verify-read operation, the program/program-verify procedure is completed. In the H8S/2646, the number of loops in reprogramming processing is guaranteed not to exceed the maximum value of the maximum programming count (N). REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 701 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM b. After write pulse application, a verify-read is performed in program-verify mode, and programming is judged to have been completed for bits read as 0. The following processing is necessary for programmed bits. When programming is completed at an early stage in the program/program-verify procedure: If programming is completed in the 1st to 6th reprogramming processing loop, additional programming should be performed on the relevant bits. Additional programming should only be performed on bits which first return 0 in a verify-read in certain reprogramming processing. When programming is completed at a late stage in the program/program-verify procedure: If programming is completed in the 7th or later reprogramming processing loop, additional programming is not necessary for the relevant bits. c. If programming of other bits is incomplete in the 128 bytes, reprogramming processing should be executed. If a bit for which programming has been judged to be completed is read as 1 in a subsequent verify-read, a write pulse should again be applied to that bit. 5. The period for which the P bit in FLMCR1 is set (the write pulse width) should be changed according to the degree of progress through the program/program-verify procedure. For detailed wait time specifications, see section 23.7, Flash Memory Characteristics. Item Symbol Item Symbol Wait time after P bit setting tsp When reprogramming loop count (n) is 1 to 6 tsp30 When reprogramming loop count (n) is 7 or more In case of additional programming processing* tsp200 tsp10 Note: * Additional programming processing is necessary only when the reprogramming loop count (n) is 1 to 6. 6. The program/program-verify flowchart for the LSI is shown in figure 20.11. To cover the points noted above, bits on which reprogramming processing is to be executed, and bits on which additional programming is to be executed, must be determined as shown below. Since reprogram data and additional-programming data vary according to the progress of the programming procedure, it is recommended that the following data storage areas (128 bytes each) be provided in RAM. Page 702 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM Reprogram Data Computation Table (D) Result of Verify-Read (X) after Write Pulse Result of Operation Application (V) 0 0 1 Programming completed: reprogramming processing not to be executed 0 1 0 Programming incomplete: reprogramming processing to be executed Comments 1 0 1 1 1 1 Still in erased state: no action Legend: (D): Source data of bits on which programming is executed (X): Source data of bits on which reprogramming is executed Additional-Programming Data Computation Table Result of Verify-Read after Write Pulse (Y) (X') Application (V) Result of Operation Comments 0 0 0 Programming by write pulse application judged to be completed: additional programming processing to be executed 0 1 1 Programming by write pulse application incomplete: additional programming processing not to be executed 1 0 1 Programming already completed: additional programming processing not to be executed 1 1 1 Still in erased state: no action Legend: (Y): Data of bits on which additional programming is executed (X'): Data of bits on which reprogramming is executed in a certain reprogramming loop 7. It is necessary to execute additional programming processing during the course of the LSI program/program-verify procedure. However, once 128-byte-unit programming is finished, additional programming should not be carried out on the same address area. When executing reprogramming, an erase must be executed first. Note that normal operation of reads, etc., is not guaranteed if additional programming is performed on addresses for which a program/program-verify operation has finished. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 703 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM Write pulse application subroutine Start of programming Sub-Routine Write Pulse START Perform programming in the erased state. Do not perform additional programming on previously programmed addresses. Set SWE bit in FLMCR1 WDT enable Wait (tsswe) s Set PSU bit in FLMCR1 Wait (tspsu) s *7 *4 n=1 Start of programming Set P bit in FLMCR1 *7 Store 128-byte program data in program data area and reprogram data area m=0 Wait (tsp) s *5*7 Write 128-byte data in RAM reprogram data area consecutively to flash memory End of programming Clear P bit in FLMCR1 *1 Sub-Routine-Call Wait (tcp) s *7 See note 6 for pulse width Write pulse Set PV bit in FLMCR1 Clear PSU bit in FLMCR1 Wait (tcpsu) s Wait (tspv) s *7 *7 H'FF dummy write to verify address Disable WDT End Sub Wait (tspvr) s *7 Read verify data *2 Write data = verify data? No nn+1 Increment address Note 6. Write Pulse Width Number of Writes n Write Time (tsp) sec 1 2 3 4 5 6 7 8 9 10 11 12 13 30 30 30 30 30 30 200 200 200 200 200 200 200 998 999 1000 m=1 Yes 6 n? No Yes Additional-programming data computation Transfer additional-programming data to additional-programming data area *4 *3 Reprogram data computation Transfer reprogram data to reprogram data area No 200 200 200 *4 128-byte data verification completed? Yes Clear PV bit in FLMCR1 Reprogram Wait (tcpv) s RAM 6 n? Sub-Routine-Call Reprogram data storage area (128 bytes) Write Pulse (Additional programming) Additional-programming data storage area (128 bytes) 2. 3. 4. 5. 7. No Yes Successively write 128-byte data from additional1 programming data area in RAM to flash memory * Program data storage area (128 bytes) Notes: 1. *7 m = 0? No n (N)? Yes Clear SWE bit in FLMCR1 *7 No Yes Clear SWE bit in FLMCR1 Data transfer is performed by byte transfer. The lower 8 bits of the first address written to must be Wait (tcswe) s Wait (tcswe) s *7 H'00 or H'80. A 128-byte data transfer must be performed even if writing fewer than 128 bytes; in this case, H'FF data must be written to the extra addresses. End of programming Programming failure Verify data is read in 16-bit (word) units. Reprogram data is determined by the operation shown in the table below (comparison between the data stored in the program data area and the verify data). Bits for which the reprogram data is 0 are programmed in the next reprogramming loop. Therefore, even bits for which programming has been completed will be subjected to programming once again if the result of the subsequent verify operation is NG. A 128-byte area for storing program data, a 128-byte area for storing reprogram data, and a 128-byte area for storing additional data must be provided in RAM. The contents of the reprogram data area and additional data area are modified as programming proceeds. A write pulse of 30 s or 200 s is applied according to the progress of the programming operation. See note 6 for details of the pulse widths. When writing of additional-programming data is executed, a 10 s write pulse should be applied. Reprogram data X' means reprogram data when the write pulse is applied. The wait times and value of N are shown in section 23.7, Flash Memory Characteristics. *7 Additional-Programming Data Computation Table Reprogram Data Computation Table Reprogram Data Verify Data Additional(X') (V) Programming Data (Y) Original Data Verify Data Reprogram Data (D) (V) (X) 0 0 1 Programming completed 0 0 0 Additional programming to be executed 0 1 0 Programming incomplete; reprogram 0 1 1 Additional programming not to be executed 1 0 1 1 0 1 Additional programming not to be executed 1 1 1 1 1 1 Additional programming not to be executed Comments Still in erased state; no action Comments Figure 20.11 Program/Program-Verify Flowchart Page 704 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 20.7.3 Section 20 ROM Erase Mode When erasing flash memory, the single-block erase flowchart shown in figure 20.12 should be followed. The wait times after bits are set or cleared in the flash memory control register 1 (FLMCR1) and the maximum number of erase operations (N) are shown in table 23.10. To erase flash memory contents, make a 1-bit setting for the flash memory area to be erased in erase block register 1 and 2 (EBR1, EBR2) at least (tsswe) s after setting the SWE bit to 1 in FLMCR1. Next, the watchdog timer (WDT) is set to prevent overerasing due to program runaway, etc. Set a value of approximately 19.8 ms as the WDT overflow period. Preparation for entering erase mode (erase setup) is performed next by setting the ESU bit in FLMCR1. The operating mode is then switched to erase mode by setting the E bit in FLMCR1 after the elapse of at least (tsesu) s. The time during which the E bit is set is the flash memory erase time. Ensure that the erase time does not exceed (tse) ms. Note: With flash memory erasing, preprogramming (setting all memory data in the memory to be erased to all 0) is not necessary before starting the erase procedure. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 705 of 1126 Section 20 ROM 20.7.4 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Erase-Verify Mode In erase-verify mode, data is read after memory has been erased to check whether it has been correctly erased. After the elapse of the fixed erase time, clear the E bit in FLMCR1, then wait for at least (tce) s before clearing the ESU bit to exit erase mode. After exiting erase mode, the watchdog timer setting is also cleared. The operating mode is then switched to erase-verify mode by setting the EV bit in FLMCR1. Before reading in erase-verify mode, a dummy write of H'FF data should be made to the addresses to be read. The dummy write should be executed after the elapse of (tsev) s or more. When the flash memory is read in this state (verify data is read in 16-bit units), the data at the latched address is read. Wait at least (tsevr) s after the dummy write before performing this read operation. If the read data has been erased (all 1), a dummy write is performed to the next address, and erase-verify is performed. If the read data is unerased, set erase mode again, and repeat the erase/erase-verify sequence as before. The maximum number of repetitions of the erase/eraseverify sequence is indicated by the maximum erase count (N). When verification is completed, exit erase-verify mode, and wait for at least (tcev) s. If erasure has been completed on all the erase blocks, clear the SWE bit in FLMCR1, and leave a wait time of at least (tcswe) s. If erasing multiple blocks, set a single bit in EBR1/EBR2 for the next block to be erased, and repeat the erase/erase-verify sequence as before. Page 706 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM Start *1 Set SWE bit in FLMCR1 Wait (tsswe) s *5 n=1 Set EBR1 or EBR2 *3, *4 Enable WDT Set ESU bit in FLMCR1 Wait (tsesu) s *5 Start of erase Set E bit in FLMCR1 Wait (tse) ms *5 Clear E bit in FLMCR1 Erase halted Wait (tce) s *5 Clear ESU bit in FLMCR1 Wait (tcesu) s *5 Disable WDT Set EV bit in FLMCR1 Wait (tsev) s nn+1 *5 Set block start address as verify address H'FF dummy write to verify address Wait (tsevr) s Read verify data Increment address Verify data = all 1s? *5 *2 NG OK NG Last address of block? OK Clear EV bit in FLMCR1 *5 Wait (tcev) s NG *5 Wait (tcev) s *5 *4 n (N)? All erase block erased? OK Clear SWE bit in FLMCR1 Notes: 1. 2. 3. 4. 5. Clear EV bit in FLMCR1 *5 OK Clear SWE bit in FLMCR1 Wait (tcswe) s Wait (tcswe) s End of erasing Erase failure NG *5 Prewriting (setting erase block data to all 0s) is not necessary. Verify data is read in 16-bit (word) units. Make only a single-bit specification in the erase block registers (EBR1 and EBR2). Two or more bits must not be set simultaneously. Erasing is performed in block units. To erase multiple blocks, each block must be erased in turn. The wait times and the value of N are shown in section 23.7, Flash Memory Characteristics. Figure 20.12 Erase/Erase-Verify Flowchart REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 707 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM 20.8 Protection There are three kinds of flash memory program/erase protection: hardware protection, software protection, and error protection. 20.8.1 Hardware Protection Hardware protection refers to a state in which programming/erasing of flash memory is forcibly disabled or aborted. Hardware protection is reset by settings in flash memory control register 1 (FLMCR1), flash memory control register 2 (FLMCR2), erase block register 1 (EBR1), and erase block register 2 (EBR2). The FLMCR1, FLMCR2, EBR1, and EBR2 settings are retained in the error-protected state. (See table 20.8.) Table 20.8 Hardware Protection Functions Item Description FWE pin protection * Yes When a low level is input to the FWE pin, FLMCR1, FLMCR2, (except bit FLER) EBR1, and EBR2 are initialized, and the program/erase-protected state is entered. Yes Reset/standby protection * In a reset (including a WDT reset) and in standby mode, FLMCR1, FLMCR2, EBR1, and EBR2 are initialized, and the program/erase-protected state is entered. Yes Yes * In a reset via the RES pin, the reset state is not entered unless the RES pin is held low until oscillation stabilizes after powering on. In the case of a reset during operation, hold the RES pin low for the RES pulse width specified in the AC Characteristics section. Page 708 of 1126 Program Erase REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 20.8.2 Section 20 ROM Software Protection Software protection can be implemented by setting the SWE bit in FLMCR1, erase block register 1 (EBR1), erase block register 2 (EBR2), and the RAMS bit in the RAM emulation register (RAMER). When software protection is in effect, setting the P or E bit in flash memory control register 1 (FLMCR1), does not cause a transition to program mode or erase mode. (See table 20.9.) Table 20.9 Software Protection Functions Item Description Program Erase SWE bit protection * Setting bit SWE in FLMCR1 to 0 will place area H'000000 to H'01FFFF in the program/erase-protected state. (Execute the program in the on-chip RAM, external memory) Yes Yes Block specification protection * Erase protection can be set for individual blocks by settings in erase block register 1 (EBR1) and erase block register 2 (EBR2). -- Yes * Setting EBR1 and EBR2 to H'00 places all blocks in the erase-protected state. Emulation protection * REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Yes Setting the RAMS bit to 1 in the RAM emulation register (RAMER) places all blocks in the program/erase-protected state. Yes Page 709 of 1126 Section 20 ROM 20.8.3 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Error Protection In error protection, an error is detected when H8S/2646 runaway occurs during flash memory programming/erasing, or operation is not performed in accordance with the program/erase algorithm, and the program/erase operation is aborted. Aborting the program/erase operation prevents damage to the flash memory due to overprogramming or overerasing. If the LSI malfunctions during flash memory programming/erasing, the FLER bit is set to 1 in FLMCR2 and the error protection state is entered. The FLMCR1, FLMCR2, EBR1, and EBR2 settings are retained, but program mode or erase mode is aborted at the point at which the error occurred. Program mode or erase mode cannot be re-entered by re-setting the P or E bit. However, PV and EV bit setting is enabled, and a transition can be made to verify mode. FLER bit setting conditions are as follows: 1. When the flash memory of the relevant address area is read during programming/erasing (including vector read and instruction fetch) 2. Immediately after exception handling (excluding a reset) during programming/erasing 3. When a SLEEP instruction (including software standby) is executed during programming/erasing 4. When the CPU releases the bus to the DTC Error protection is released only by a reset and in hardware standby mode. Page 710 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM Figure 20.13 shows the flash memory state transition diagram. Program mode Erase mode Reset or standby (hardware protection) RES = 0 or HSTBY = 0 RD VF PR ER FLER = 0 RD VF PR ER FLER = 0 Error occurrence (software standby) RES = 0 or HSTBY = 0 Error occurrence RES = 0 or HSTBY = 0 Error protection mode RD VF PR ER FLER = 1 Software standby mode Software standby mode release FLMCR1, FLMCR2, EBR1, EBR2 initialization state Error protection mode (software standby) RD VF PR ER FLER = 1 FLMCR1, FLMCR2, (except bit FLER) EBR1, EBR2 initialization state Legend: RD: Memory read possible VF: Verify-read possible PR: Programming possible ER: Erasing possible RD: VF: PR: ER: Memory read not possible Verify-read not possible Programming not possible Erasing not possible Figure 20.13 Flash Memory State Transitions REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 711 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM 20.9 Flash Memory Emulation in RAM Making a setting in the RAM emulation register (RAMER) enables part of RAM to be overlapped onto the flash memory area so that data to be written to flash memory can be emulated in RAM in real time. After the RAMER setting has been made, accesses cannot be made from the flash memory area or the RAM area overlapping flash memory. Emulation can be performed in user mode and user program mode. Figure 20.14 shows an example of emulation of real-time flash memory programming. Start of emulation program Set RAMER Write tuning data to overlap RAM Execute application program No Tuning OK? Yes Clear RAMER Write to flash memory emulation block End of emulation program Figure 20.14 Flowchart for Flash Memory Emulation in RAM Page 712 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM This area can be accessed from both the RAM area and flash memory area H'000000 EB0 H'000400 EB1 H'000800 EB2 H'000C00 EB3 H'001000 Flash memory EB4 to EB9 H'FFE000 H'FFE3FF On-chip RAM H'FFEFBF H'01FFFF Figure 20.15 Example of RAM Overlap Operation Example in which Flash Memory Block Area EB0 is Overlapped 1. Set bits RAMS, RAM2 to RAM0 in RAMER to 1, 0, 0, 0, to overlap part of RAM onto the area (EB0) for which real-time programming is required. 2. Real-time programming is performed using the overlapping RAM. 3. After the program data has been confirmed, the RAMS bit is cleared, releasing RAM overlap. 4. The data written in the overlapping RAM is written into the flash memory space (EB0). Notes: 1. When the RAMS bit is set to 1, program/erase protection is enabled for all blocks regardless of the value of RAM2 to RAM0 (emulation protection). In this state, setting the P or E bit in flash memory control register 1 (FLMCR1), will not cause a transition to program mode or erase mode. When actually programming or erasing a flash memory area, the RAMS bit should be cleared to 0. 2. A RAM area cannot be erased by execution of software in accordance with the erase algorithm while flash memory emulation in RAM is being used. 3. Block area EB0 contains the vector table. When performing RAM emulation, the vector table is needed in the overlap RAM. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 713 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM 20.10 Interrupt Handling when Programming/Erasing Flash Memory All interrupts, including NMI interrupt is disabled when flash memory is being programmed or erased (when the P or E bit is set in FLMCR1), and while the boot program is executing in boot 1 mode* , to give priority to the program or erase operation. There are three reasons for this: 1. Interrupt during programming or erasing might cause a violation of the programming or erasing algorithm, with the result that normal operation could not be assured. 2. In the interrupt exception handling sequence during programming or erasing, the vector would 2 not be read correctly* , possibly resulting in MCU runaway. 3. If interrupt occurred during boot program execution, it would not be possible to execute the normal boot mode sequence. For these reasons, in on-board programming mode alone there are conditions for disabling interrupt, as an exception to the general rule. However, this provision does not guarantee normal erasing and programming or MCU operation. All requests, including NMI interrupt, must therefore be restricted inside and outside the MCU when programming or erasing flash memory. NMI interrupt is also disabled in the error-protection state while the P or E bit remains set in FLMCR1. Notes: 1. Interrupt requests must be disabled inside and outside the MCU until the programming control program has completed programming. 2. The vector may not be read correctly in this case for the following two reasons: 20.11 * If flash memory is read while being programmed or erased (while the P or E bit is set in FLMCR1), correct read data will not be obtained (undetermined values will be returned). * If the interrupt entry in the vector table has not been programmed yet, interrupt exception handling will not be executed correctly. Programmer Mode In programmer mode, a PROM programmer can be used to perform programming/erasing via a socket adapter, just as for a discrete flash memory. Use a PROM programmer that supports the Renesas Technology's 128-kbyte flash memory on-chip MCU device type (FZTAT128V5A). Page 714 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 20.12 Section 20 ROM Flash Memory and Power-Down States In addition to its normal operating state, the flash memory has power-down states in which power consumption is reduced by halting part or all of the internal power supply circuitry. There are three flash memory operating states: (1) Normal operating mode: The flash memory can be read and written to. (2) Power-down mode: Part of the power supply circuitry is halted, and the flash memory can be read when the LSI is operating on the subclock. (3) Standby mode: All flash memory circuits are halted, and the flash memory cannot be read or written to. States (2) and (3) are flash memory power-down states. Table 20.10 shows the correspondence between the operating states of the LSI and the flash memory. Table 20.10 Flash Memory Operating States LSI Operating State Flash Memory Operating State High-speed mode Normal mode (read/write) Medium-speed mode Sleep mode Subactive mode When PDWND = 0: Power-down mode (read-only) Subsleep mode When PDWND = 1: Normal mode (read-only) Watch mode Standby mode Software standby mode Hardware standby mode 20.12.1 Notes on Power-Down States 1. When the flash memory is in a power-down state, part or all of the internal power supply circuitry is halted. Therefore, a power supply circuit stabilization period must be provided when returning to normal operation. When the flash memory returns to its normal operating state from a power-down state, bits STS2 to STS0 in SBYCR must be set to provide a wait time of at least 20 s (power supply stabilization time), even if an oscillation stabilization period is not necessary. 2. In a power-down state, FLMCR1, FLMCR2, EBR1, EBR2, RAMER, and FLPWCR cannot be read from or written to. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 715 of 1126 Section 20 ROM 20.13 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Flash Memory Programming and Erasing Precautions Precautions concerning the use of on-board programming mode, the RAM emulation function, and programmer mode are summarized below. 1. Use the specified voltages and timing for programming and erasing. Applied voltages in excess of the rating can permanently damage the device. Use a PROM programmer that supports the Renesas Electronics microcomputer device type with 128-kbyte on-chip flash memory (FZTAT256V3A). Do not select the HN27C4096 setting for the PROM programmer, and only use the specified socket adapter. Failure to observe these points may result in damage to the device. 2. Powering on and off (see figures 20.16 to 20.18) Do not apply a high level to the FWE pin until VCC has stabilized. Also, drive the FWE pin low before turning off VCC. When applying or disconnecting VCC power, fix the FWE pin low and place the flash memory in the hardware protection state. The power-on and power-off timing requirements should also be satisfied in the event of a power failure and subsequent recovery. 3. FWE application/disconnection (see figures 20.16 to 20.18) FWE application should be carried out when MCU operation is in a stable condition. If MCU operation is not stable, fix the FWE pin low and set the protection state. The following points must be observed concerning FWE application and disconnection to prevent unintentional programming or erasing of flash memory: * Apply FWE when the VCC voltage has stabilized within its rated voltage range. Apply FWE when oscillation has stabilized (after the elapse of the oscillation settling time). * In boot mode, apply and disconnect FWE during a reset. * In user program mode, FWE can be switched between high and low level regardless of a reset state. FWE input can also be switched during execution of a program in flash memory. * Do not apply FWE if program runaway has occurred. * Disconnect FWE only when the SWE, ESU, PSU, EV, PV, P, and E bits in FLMCR1 are cleared. Make sure that the SWE, ESU, PSU, EV, PV, P, and E bits are not set by mistake when applying or disconnecting FWE. Page 716 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM 4. Do not apply a constant high level to the FWE pin. Apply a high level to the FWE pin only when programming or erasing flash memory. A system configuration in which a high level is constantly applied to the FWE pin should be avoided. Also, while a high level is applied to the FWE pin, the watchdog timer should be activated to prevent overprogramming or overerasing due to program runaway, etc. 5. Use the recommended algorithm when programming and erasing flash memory. The recommended algorithm enables programming and erasing to be carried out without subjecting the device to voltage stress or sacrificing program data reliability. When setting the P or E bit in FLMCR1, the watchdog timer should be set beforehand as a precaution against program runaway, etc. 6. Do not set or clear the SWE bit during execution of a program in flash memory. Do not set or clear the SWE bit during execution of a program in flash memory. Wait for at least 100 s after clearing the SWE bit before executing a program or reading data in flash memory. When the SWE bit is set, data in flash memory can be rewritten, but when SWE = 1, flash memory can only be read in program-verify or erase-verify mode. Access flash memory only for verify operations (verification during programming/erasing). Do not clear the SWE bit during programming, erasing, or verifying. Similarly, when using the RAM emulation function while a high level is being input to the FWE pin, the SWE bit must be cleared before executing a program or reading data in flash memory. However, the RAM area overlapping flash memory space can be read and written to regardless of whether the SWE bit is set or cleared. 7. Do not use interrupts while flash memory is being programmed or erased. All interrupt requests, including NMI, should be disabled during FWE application to give priority to program/erase operations. 8. Do not perform additional programming. Erase the memory before reprogramming. In on-board programming, perform only one programming operation on a 128-byte programming unit block. In programmer mode, also, perform only one programming operation on a 128-byte programming unit block. Further programming must only be executed after this programming unit block has been erased. 9. Before programming, check that the chip is correctly mounted in the PROM programmer. Overcurrent damage to the device can result if the index marks on the PROM programmer socket, socket adapter, and chip are not correctly aligned. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 717 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM 10. Do not touch the socket adapter or chip during programming. Touching either of these can cause contact faults and write errors. Wait time: x Programming/ erasing possible Wait time: 100 s Min 0 s tOSC1 VCC tMDS*3 FWE Min 0 s MD2 to MD0*1 tMDS*3 RES SWE set SWE cleared SWE bit Period during which flash memory access is prohibited (x: Wait time after setting SWE bit)*2 Period during which flash memory can be programmed (Execution of program in flash memory prohibited, and data reads other than verify operations prohibited) Notes: 1. Except when switching modes, the level of the mode pins (MD2 to MD0) must be fixed until poweroff by pulling the pins up or down. 2. See section 23.7, Flash Memory Characteristics. 3. Mode programming setup time tMDS (min) = 200 ns Figure 20.16 Power-On/Off Timing (Boot Mode) Page 718 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM Wait time: x Programming/ erasing possible Wait time: 100 s Min 0 s tOSC1 VCC FWE MD2 to MD0*1 tMDS*3 RES SWE set SWE cleared SWE bit Period during which flash memory access is prohibited (x: Wait time after setting SWE bit)*2 Period during which flash memory can be programmed (Execution of program in flash memory prohibited, and data reads other than verify operations prohibited) Notes: 1. Except when switching modes, the level of the mode pins (MD2 to MD0) must be fixed until poweroff by pulling the pins up or down. 2. See section 23.7, Flash Memory Characteristics. 3. Mode programming setup time tMDS (min) = 200 ns Figure 20.17 Power-On/Off Timing (User Program Mode) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 719 of 1126 Wait time: 100 s Programming/ erasing possible Wait time: x Wait time: x Programming/ erasing possible Wait time: 100 s Wait time: 100 s Wait time: x Programming/ erasing possible Wait time: x Programming/ erasing possible Wait time: 100 s H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 20 ROM tOSC1 VCC Min 0s FWE tMDS tMDS*2 MD2 to MD0 tMDS tRESW RES SWE cleared SWE set SWE bit Mode change*1 Boot mode Mode User change*1 mode User program mode User mode User program mode Period during which flash memory access is prohibited (x: Wait time after setting SWE bit)*3 Period during which flash memory can be programmed (Execution of program in flash memory prohibited, and data reads other than verify operations prohibited) Notes: 1. When entering boot mode or making a transition from boot mode to another mode, mode switching must be carried out by means of RES input. The state of ports with multiplexed address functions and bus control output pins (AS, RD, WR) will change during this switchover interval (the interval during which the RES pin input is low), and therefore these pins should not be used as output signals during this time. 2. When making a transition from boot mode to another mode, a mode programming setup time, tMDS (min), of 200 ns is necessary with respect to the RES clearance timing. 3. See section 23.7, Flash Memory Characteristics. Figure 20.18 Mode Transition Timing (Example: Boot Mode User Mode User Program Mode) Page 720 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 21 Clock Pulse Generator Section 21 Clock Pulse Generator 21.1 Overview The H8S/2646 Group has a built-in clock pulse generator (CPG) that generates the system clock (), the bus master clock, and internal clocks. The clock pulse generator consists of an oscillator, PLL (phase-locked loop) circuit, clock selection circuit, medium-speed clock divider, bus master clock selection circuit, subclock oscillator, and waveform shaping circuit. The frequency can be changed by means of the PLL circuit in the CPG. Frequency changes are performed by software by means of settings in the system clock control register (SCKCR) and low-power control register (LPWRCR). 21.1.1 Block Diagram Figure 21.1 shows a block diagram of the clock pulse generator. LPWRCR SCKCR STC1, STC0 EXTAL XTAL System clock oscillator SCK2 to SCK0 Mediumspeed clock divider PLL circuit (x1, x2, x4) Clock selection circuit SUB OSC1 Waveform Generation Circuit Subclock oscillator OSC2 /2 to /32 Bus master clock selection circuit System clock Internal clock to to pin supporting modules Bus master clock to CPU and DTC WDT1 count clock Legend: LPWRCR: Low-power control register SCKCR: System clock control register Figure 21.1 Block Diagram of Clock Pulse Generator REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 721 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 21 Clock Pulse Generator 21.1.2 Register Configuration The clock pulse generator is controlled by SCKCR and LPWRCR. Table 21.1 shows the register configuration. Table 21.1 Clock Pulse Generator Register Name Abbreviation R/W Initial Value Address* System clock control register SCKCR R/W H'00 H'FDE6 Low-power control register LPWRCR R/W H'00 H'FDEC Note:* Lower 16 bits of the address. 21.2 Register Descriptions 21.2.1 System Clock Control Register (SCKCR) Bit 7 6 5 4 3 2 1 0 PSTOP -- -- -- STCS SCK2 SCK1 SCK0 0 0 0 0 0 0 0 0 R/W -- -- -- R/W R/W R/W R/W : Initial value: R/W : SCKCR is an 8-bit readable/writable register that performs clock output control and mediumspeed mode control, selection of operation when the PLL circuit frequency multiplication factor is changed, and medium-speed mode control. SCKCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 7-- Clock Output Disable (PSTOP): Controls output. Description High Speed Mode, Medium Speed Mode, Sleep Mode, Bit 7 PSTOP Subactive Mode Subsleep Mode Software Standby Mode, Watch Mode, and Direct Transition Hardware Standby Mode 0 output (initial value) output Fixed high High impedance 1 Fixed high Fixed high Fixed high High impedance Bits 6 to 4--Reserved: These bits are always read as 0 and cannot be modified. Page 722 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 21 Clock Pulse Generator Bit 3--Frequency Multiplication Factor Switching Mode Select (STCS): Selects the operation when the PLL circuit frequency multiplication factor is changed. Bit 3 STCS Description 0 Specified multiplication factor is valid after recovery from software standby mode, watch mode, or subactive mode (Initial value) 1 Specified multiplication factor is valid immediately after STC bits are rewritten Bits 2 to 0--System Clock Select 2 to 0 (SCK2 to SCK0): These bits select the bus master clock. Bit 2 SCK2 Bit 1 SCK1 Bit 0 SCK0 Description 0 0 0 Bus master is in high-speed mode 1 Medium-speed clock is /2 1 1 0 1 21.2.2 0 Medium-speed clock is /4 1 Medium-speed clock is /8 0 Medium-speed clock is /16 1 Medium-speed clock is /32 -- -- (Initial value) Low-Power Control Register (LPWRCR) Bit 7 6 DTON LSON 5 4 3 NESEL SUBSTP RFCUT 2 1 0 -- STC1 STC0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W LPWRCR is an 8-bit readable/writable register that performs power-down mode control. The following pertains to bits 1 and 0. For details of the other bits, see section 22.2.3, Low-Power Control Register (LPWRCR). LPWRCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bits 1 and 0--Frequency Multiplication Factor (STC1, STC0): The STC bits specify the frequency multiplication factor of the PLL circuit. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 723 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 21 Clock Pulse Generator Bit 1 STC1 Bit 0 STC0 Description 0 0 x1 1 x2 1 (Initial value) 0 x4 1 Setting prohibited Note: Make this setting so that the clock frequency both before and after multiplication is within the operating frequency range of the LSI. Note: A system clock frequency multiplied by the multiplication factor (STC1 and STC0) should not exceed the maximum operating frequency defined in section 23, Electrical Characteristics. 21.3 Oscillator A crystal oscillator is used to supply clock pulses. In either case, the input clock should be from 4 MHz to 20 MHz. 21.3.1 Connecting a Crystal Resonator Circuit Configuration: A crystal resonator can be connected as shown in the example in figure 21.2. Select the damping resistance Rd according to table 21.2. An AT-cut parallel-resonance crystal should be used. CL1 EXTAL XTAL Rd CL2 CL1 = CL2 = 10 to 22 pF: if 4 f 16 MHz CL1 = CL2 = 10 to 15 pF: if 16 < f 20 MHz Note: CL1 and CL2 are reference values. The capacitance which is used must be decided by the parasitic capacitance of the board and the results of crystal resonator evaluation. Figure 21.2 Connection of Crystal Resonator (Example) Page 724 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 21 Clock Pulse Generator Table 21.2 Damping Resistance Value Frequency (MHz) 4 8 12 16 20 Rd () 500 200 0 0 0 Crystal Resonator: Figure 21.3 shows the equivalent circuit of the crystal resonator. Use a crystal resonator that has the characteristics shown in table 18.3. The crystal resonator frequency should not exceed 20 MHz. CL L Rs XTAL EXTAL C0 AT-cut parallel-resonance type Figure 21.3 Crystal Resonator Equivalent Circuit Table 21.3 Crystal Resonator Parameters Frequency (MHz) 4 8 12 16 20 RS max () 120 80 60 50 40 C0 max (pF) 7 7 7 7 7 Note on Board Design: When a crystal resonator is connected, the following points should be noted: Other signal lines should be routed away from the oscillator circuit to prevent induction from interfering with correct oscillation. See figure 21.4. When designing the board, place the crystal resonator and its load capacitors as close as possible to the XTAL and EXTAL pins. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 725 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 21 Clock Pulse Generator Avoid Signal A Signal B H8S/2646 Group CL2 XTAL EXTAL CL1 Figure 21.4 Example of Incorrect Board Design External circuitry such as that shown below is recommended around the PLL. R1: 3 k C1: 470 pF PLLCAP PLLVSS VCC CB: 0.1 F* VSS (Values are preliminary recommended values.) Note: * CB is laminated ceramic capacitors. Figure 21.5 Points for Attention when Using PLL Oscillation Circuit Place oscillation stabilization capacitor C1 and resistor R1 close to the PLLCAP pin, and ensure that no other signal lines cross this line. Supply the C1 ground from PLLVSS. Separate PLLVSS from the other VCC and VSS lines at the board power supply source, and be sure to insert bypass capacitors CB close to the pins. Page 726 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 21.4 Section 21 Clock Pulse Generator PLL Circuit The PLL circuit has the function of multiplying the frequency of the clock from the oscillator by a factor of 1, 2, or 4. The multiplication factor is set with the STC bits in SCKCR. The phase of the rising edge of the internal clock is controlled so as to match that at the EXTAL pin. The clock frequency before and after multiplication must not exceed the maximum operating frequency range of this LSI. When the multiplication factor of the PLL circuit is changed, the operation varies according to the setting of the STCS bit in SCKCR. When STCS = 0 (initial value), the setting becomes valid after a transition to software standby mode, watch mode, or subactive mode. The transition time count is performed in accordance with the setting of bits STS2 to STS0 in SBYCR. [1] The initial PLL circuit multiplication factor is 1. [2] A value is set in bits STS2 to STS0 to give the specified transition time. [3] The target value is set in STC1 and STC0, and a transition is made to software standby mode, watch mode, or subactive mode. [4] The clock pulse generator stops and the value set in STC1 and STC0 becomes valid. [5] Software standby mode, watch mode, or subactive mode is cleared, and a transition time is secured in accordance with the setting in STS2 to STS0. [6] After the set transition time has elapsed, the LSI resumes operation using the target multiplication factor. If a PC break is set for the SLEEP instruction that causes a transition to software standby mode in [1], software standby mode is entered and break exception handling is executed after the oscillation stabilization time. In this case, the instruction following the SLEEP instruction is executed after execution of the RTE instruction. When STCS = 1, the LSI operates on the changed multiplication factor immediately after bits STC1 and STC0 are rewritten. 21.5 Medium-Speed Clock Divider The medium-speed clock divider divides the system clock to generate /2, /4, /8, /16, and /32. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 727 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 21 Clock Pulse Generator 21.6 Bus Master Clock Selection Circuit The bus master clock selection circuit selects the system clock () or one of the medium-speed clocks (/2, /4, or /8, /16, and /32) to be supplied to the bus master, according to the settings of the SCK2 to SCK0 bits in SCKCR. 21.7 Subclock Oscillator Connecting 32.768 kHz Quartz Oscillator: To supply a clock to the subclock divider, connect a 32.768kHz quartz oscillator, as shown in figure 21.6. See section 21.3.1, "Notes on Board Design" for notes on connecting quartz oscillators. C1 OSC1 C2 OSC2 C1 = C2 = 15 pF (typ)* Note: * C1 and C2 are reference values that include the parasitic capacity. Figure 21.6 Example Connection of 32.768 kHz Quartz Oscillator Figure 21.7 shows the equivalence circuit for a 32.768 kHz oscillator. Ls Cs Rs OSC1 OSC2 Co Figure 21.7 Equivalence Circuit for 32.768 kHz Oscillator Page 728 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 21 Clock Pulse Generator Handling pins when subclock not required: If no subclock is required, connect the OSC1 pin to Vss and leave OSC2 open, as shown in figure 21.8. OSC1 OSC2 Open Figure 21.8 Pin Handling When Subclock Not Required 21.8 Subclock Waveform Generation Circuit To eliminate noise from the subclock input to OSCI, the subclock is sampled using the dividing clock . The sampling frequency is set using the NESEL bit of LPWRCR. For details, see section 22.2.3, Low-Power Control Register (LPWRCR). No sampling is performed in subactive mode, subsleep mode, or watch mode. 21.9 Note on Crystal Resonator Since various characteristics related to the crystal resonator are closely linked to the user's board design, thorough evaluation is necessary on the user's part, using the resonator connection examples shown in this section as a guide. As the resonator circuit ratings will depend on the floating capacitance of the resonator and the mounting circuit, the ratings should be determined in consultation with the resonator manufacturer. The design must ensure that a voltage exceeding the maximum rating is not applied to the oscillator pin. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 729 of 1126 Section 21 Clock Pulse Generator Page 730 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 22 Power-Down Modes Section 22 Power-Down Modes 22.1 Overview In addition to the normal program execution state, the H8S/2646 Group has nine power-down modes in which operation of the CPU and oscillator is halted and power dissipation is reduced. Low-power operation can be achieved by individually controlling the CPU, on-chip supporting modules, and so on. The H8S/2646 Group operating modes are as follows: (1) High-speed mode (2) Medium-speed mode (3) Subactive mode (4) Sleep mode (5) Subsleep mode (6) Watch mode (7) Module stop mode (8) Software standby mode (9) Hardware standby mode (2) to (9) are low power dissipation states. Sleep mode and subsleep mode are CPU states, medium-speed mode is a CPU and bus master state, subactive mode is a CPU and bus master and internal peripheral function state, and module stop mode is an internal peripheral function (including bus masters other than the CPU) state. Some of these states can be combined. After a reset, the LSI is in high-speed mode with modules other than the DTC in module stop mode. Table 22.1 shows the internal state of the LSI in the respective modes. Table 22.2 shows the conditions for shifting between the low power dissipation modes. Figure 22.1 is a mode transition diagram. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 731 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 22 Power-Down Modes Table 22.1 LSI Internal States in Each Mode Function HighSpeed System clock pulse generator Function- Function- Function- Function- Halted ing ing ing ing Subclock pulse generator Function- Function- Function- Function- Function- Function- Function- Functioning ing ing ing ing ing ing ing CPU MediumSpeed Sleep Module Stop Watch Subactive Software Subsleep Standby Hardware Standby Halted Halted Halted Halted Halted Subclock Halted Halted Instructions Function- Medium- Halted High/ Registers ing speed (retained) medium- (retained) operation (retained) (retained) operation speed operation Halted Halted (undefined) Function- Function- Function- Function- Function- Function- Function- FunctionExternal NMI ing ing ing ing ing ing ing ing interrupts IRQ0-IRQ5 Halted Peripheral WDT1 functions Function- Function- Function- Function- Subclock Subclock Subclock Halted ing ing ing ing operation operation operation (retained) Halted (reset) WDT0 Function- Function- Function- Function- Halted Subclock Subcloc Halted ing ing ing ing (retained) operation operation (retained) Halted (reset) DTC Function- Medium- Function- Halted Halted Halted Halted Halted ing speed ing (retained) (retained) (retained) (retained) (retained) operation Halted (reset) PBC Function- Medium- Function- Halted Halted Subclock Halted Halted ing speed ing (retained) (retained) operation (retained) (retained) operation Halted (reset) TPU Function- Function- Function- Halted Halted Halted Halted Halted ing ing ing (retained) (retained) (retained) (retained) (retained) Halted (reset) Function- Function- Function- Halted ing ing ing (reset) Halted (reset) PPG SCI0 SCI1 Halted (reset) Halted (reset) Halted (reset) Halted (reset) PWM HCAN A/D LCD Function- Function- Function- Halted Function- Function- Function- Halted ing ing ing (retained) ing* ing* ing* (retained) Halted (reset) RAM Function- Function- Function- Function- Retained ing ing ing (DTC) ing Function- Retained ing Retained Retained I/O Function- Function- Function- Function- Retained ing ing ing ing Function- Retained ing Retained High impedance Notes: "Halted (retained)" means that internal register values are retained. The internal state is "operation suspended." "Halted (reset)" means that internal register values and internal states are initialized. In module stop mode, only modules for which a stop setting has been made are halted (reset or retained). * When the LCD is operated in watch, subactive, or subsleep mode, select the subclock as the clock to be used. Page 732 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 22 Power-Down Modes Program-halted state STBY pin = Low Hardware standby mode Reset state STBY pin = High RES pin = Low Program execution state RES pin = High SSBY= 0, LSON= 0 Sleep mode (main clock) SLEEP instruction High-speed mode (main clock) Any interrupt*3 SCK2 to SCK0= 0 SCK2 to SCK0 0 Medium-speed mode (main clock) SLEEP instruction SLEEP instruction SSBY = 1, PSS = 1 DTON = 1, LSON = 1 Clock switching exception processing SLEEP instruction Watch mode (subclock) SSBY= 0, PSS= 1, LSON= 1 SLEEP instruction Subsleep mode (subclock) Interrupt*2 : Transition after exception processing Notes: 1. 2. 3. 4. SSBY= 1, PSS= 1, DTON= 0 SLEEP instruction Interrupt*1 LSON bit = 1 Subactive mode (subclock) Software standby mode External interrupt*4 Interrupt*1 LSON bit = 0 SLEEP instruction SSBY = 1, PSS = 1 DTON = 1, LSON = 0 After the oscillation stabilization time (STS2 to 0), clock switching exception processing SSBY= 1, PSS= 0, LSON= 0 : Low power dissipation mode NMI, IRQ0 to IRQ5, and WDT1 interrupts NMI, IRQ0 to IRQ5, IWDT0 interrupts, and WDT1 interrupt. All interrupts NMI and IRQ0 to IRQ5 * When a transition is made between modes by means of an interrupt, the transition cannot be made on interrupt source generation alone. Ensure that interrupt handling is performed after accepting the interrupt request. * From any state except hardware standby mode, a transition to the reset state occurs when RES is driven Low. * From any state, a transition to hardware standby mode occurs when STBY is driven low. * Always select high-speed mode before making a transition to watch mode or subactive mode. Figure 22.1 Mode Transition Diagram REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 733 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 22 Power-Down Modes Table 22.2 Low Power Dissipation Mode Transition Conditions State After Transition State After Transition Back from Low Power Invoked by SLEEP Mode Invoked by LSON DTON Instruction Interrupt Status of Control Bit at Transition Pre-Transition State SSBY PSS High-speed/ 0 Medium-speed 0 * 0 * Sleep High-speed/Medium-speed * 1 * -- -- 1 0 0 * Software standby High-speed/Medium-speed 1 0 1 * -- -- 1 1 0 0 Watch High-speed 1 1 1 0 Watch Subactive 1 1 0 1 -- -- 1 1 1 1 Subactive -- 0 0 * * -- -- 0 1 0 * -- -- 0 1 1 * Subsleep Subactive 1 0 * * -- -- 1 1 0 0 Watch High-speed Subactive 1 1 1 0 Watch Subactive 1 1 0 1 High-speed -- 1 1 1 1 -- -- * : Don't care --: Do not set Page 734 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 22.1.1 Section 22 Power-Down Modes Register Configuration Power-down modes are controlled by the SBYCR, SCKCR, LPWRCR, TCSR (WDT1), and MSTPCR registers. Table 22.3 summarizes these registers. Table 22.3 Power-Down Mode Registers Name Abbreviation R/W Initial Value 1 Address* Standby control register SBYCR R/W H'58 H'FDE4 System clock control register SCKCR R/W H'00 H'FDE6 Low-power control register LPWRCR R/W H'00 H'FDEC Timer control/status register (WDT1) TCSR1 R/W H'00 H'FFA2 Module stop control register A to D MSTPCRA R/W H'3F H'FDE8 MSTPCRB R/W H'FF H'FDE9 MSTPCRC R/W H'FF H'FDEA MSTPCRD R/W B'11****** H'FC60 Note: 1. Lower 16 bits of the address. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 735 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 22 Power-Down Modes 22.2 Register Descriptions 22.2.1 Standby Control Register (SBYCR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 SSBY STS2 STS1 STS0 OPE -- -- -- 0 1 0 1 1 0 0 0 R/W R/W R/W R/W R/W -- -- -- SBYCR is an 8-bit readable/writable register that performs power-down mode control. SBYCR is initialized to H'58 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 7--Software Standby (SSBY): When making a low power dissipation mode transition by executing the SLEEP instruction, the operating mode is determined in combination with other control bits. Note that the value of the SSBY bit does not change even when shifting between modes using interrupts. Bit 7 SSBY 0 Description Shifts to sleep mode when the SLEEP instruction is executed in high-speed mode or medium-speed mode. Shifts to subsleep mode when the SLEEP instruction is executed in subactive mode. (Initial value) 1 Shifts to software standby mode, subactive mode, and watch mode when the SLEEP instruction is executed in high-speed mode or medium-speed mode. Shifts to watch mode or high-speed mode when the SLEEP instruction is executed in subactive mode. Page 736 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 22 Power-Down Modes Bits 6 to 4--Standby Timer Select 2 to 0 (STS2 to STS0): These bits select the MCU wait time for clock stabilization when shifting to high-speed mode or medium-speed mode by using a specific interrupt or command to cancel software standby mode, watch mode, or subactive mode. With a quartz oscillator (table 22.5), select a wait time of 8 ms (oscillation stabilization time) or more, depending on the operating frequency. With an external clock, there are no specific wait requirements. Bit 6 STS2 Bit 5 STS1 Bit 4 STS0 Description 0 0 0 Standby time = 8192 states 1 Standby time = 16384 states 1 1 0 1 0 Standby time = 32768 states 1 Standby time = 65536 states 0 Standby time = 131072 states 1 Standby time = 262144 states 0 Reserved 1 Standby time = 16 states (Initial value) Bit 3--Output Port Enable (OPE): This bit specifies whether the output of the address bus and bus control signals (AS, RD, HWR, LWR) is retained or set to high-impedance state in the software standby mode, watch mode, and when making a direct transition. Bit 3 OPE Description 0 In software standby mode, watch mode, and when making a direct transition, address bus and bus control signals are high-impedance. 1 In software standby mode, watch mode, and when making a direct transition, the output state of the address bus and bus control signals is retained. (Initial value) Bits 2 to 0--Reserved: These bits always return 0 when read, and cannot be written to. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 737 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 22 Power-Down Modes 22.2.2 System Clock Control Register (SCKCR) Bit 7 6 5 4 3 2 1 0 PSTOP -- -- -- STCS SCK2 SCK1 SCK0 : 0 0 0 0 0 0 0 0 R/W -- -- -- R/W R/W R/W R/W Initial value : R/W : SCKCR is an 8-bit readable/writable register that performs clock output control and mediumspeed mode control. SCKCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 7-- Clock Output Disable (PSTOP): In combination with the DDR of the applicable port, this bit controls output. See section 22.12, Clock Output Disable Function, for details. Description Bit 7 PSTOP High Speed Mode, Medium Speed Mode, Subactive Mode Sleep Mode, Subsleep Mode Software Standby Mode, Watch Mode, Hardware and Direct Transition Standby Mode 0 output (initial value) output Fixed high High impedance 1 Fixed high Fixed high Fixed high High impedance Bits 6 to 4--Reserved: These bits are always read as 0 and cannot be modified. Bit 3--Frequency Multiplication Factor Switching Mode Select (STCS): Selects the operation when the PLL circuit frequency multiplication factor is changed. Bit 3 STCS Description 0 Specified multiplication factor is valid after transition to software standby mode, watch mode, or subactive mode (Initial value) 1 Specified multiplication factor is valid immediately after STC bits are rewritten Page 738 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 22 Power-Down Modes Bits 2 to 0--System clock select (SCK2 to SCK0): These bits select the bus master clock in high-speed mode, medium-speed mode, and subactive mode. Set SCK2 to SCK0 all to 0 when shifting to operation in watch mode or subactive mode. Bit 2 SCK2 Bit 1 SCK1 Bit 0 SCK0 Description 0 0 0 Bus master in high-speed mode 1 Medium-speed clock is /2 0 Medium-speed clock is /4 1 Medium-speed clock is /8 0 Medium-speed clock is /16 1 Medium-speed clock is /32 -- -- 1 1 0 1 22.2.3 (Initial value) Low-Power Control Register (LPWRCR) Bit : Initial value : R/W : 7 6 DTON LSON 0 0 0 0 0 R/W R/W R/W R/W R/W 5 4 3 NESEL SUBSTP RFCUT 2 1 0 -- STC1 STC0 0 0 0 R/W R/W R/W The LPWRCR is an 8-bit read/write register that controls the low power dissipation modes. The LPWRCR is initialized to H'00 at a reset and when in hardware standby mode. It is not initialized in software standby mode. The following describes bits 7 to 2. For details of other bits, see section 21.2.2, Low-Power Control Register (LPWRCR). REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 739 of 1126 Section 22 Power-Down Modes H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit 7--Direct Transition ON Flag (DTON): When shifting to low power dissipation mode by executing the SLEEP instruction, this bit specifies whether or not to make a direct transition between high-speed mode or medium-speed mode and the subactive modes. The selected operating mode after executing the SLEEP instruction is determined by the combination of other control bits. Bit 7 DTON Description 0 * When the SLEEP instruction is executed in high-speed mode or medium-speed mode, operation shifts to sleep mode, software standby mode, or watch mode*. * When the SLEEP instruction is executed in subactive mode, operation shifts to subsleep mode or watch mode. (Initial value) * When the SLEEP instruction is executed in high-speed mode or medium-speed mode, operation shifts directly to subactive mode*, or shifts to sleep mode or software standby mode. * When the SLEEP instruction is executed in subactive mode, operation shifts directly to high-speed mode, or shifts to subsleep mode. 1 Note: * Always set high-speed mode when shifting to watch mode or subactive mode. Bit 6--Low-Speed ON Flag (LSON): When shifting to low power dissipation mode by executing the SLEEP instruction, this bit specifies the operating mode, in combination with other control bits. This bit also controls whether to shift to high-speed mode or subactive mode when watch mode is cancelled. Bit 6 LSON Description 0 * When the SLEEP instruction is executed in high-speed mode or medium-speed mode, operation shifts to sleep mode, software standby mode, or watch mode*. * When the SLEEP instruction is executed in subactive mode, operation shifts to watch mode or shifts directly to high-speed mode. * Operation shifts to high-speed mode when watch mode is cancelled. (Initial value) * When the SLEEP instruction is executed in high-speed mode, operation shifts to watch mode or subactive mode. * When the SLEEP instruction is executed in subactive mode, operation shifts to subsleep mode or watch mode. * Operation shifts to subactive mode when watch mode is cancelled. 1 Note: * Always set high-speed mode when shifting to watch mode or subactive mode. Page 740 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 22 Power-Down Modes Bit 5--Noise Elimination Sampling Frequency Select (NESEL): This bit selects the sampling frequency of the subclock (SUB) generated by the subclock oscillator is sampled by the clock () generated by the system clock oscillator. Set this bit to 0 when = 5 MHz or more. This setting is disabled in subactive mode, subsleep mode, and watch mode. Bit 5 NESEL Description 0 Sampling using 1/32 x 1 Sampling using 1/4 x (Initial value) Bit 4--Subclock enable (SUBSTP): This bit enables/disables subclock generation. Bit 4 SUBSTP Description 0 Enables subclock generation 1 Disables subclock generation (Initial value) Bit 3--Oscillation Circuit Feedback Resistance Control Bit (RFCUT): This bit turns the internal feedback resistance of the main clock oscillation circuit ON/OFF. Bit 3 RFCUT Description 0 When the main clock is oscillating, sets the feedback resistance ON. When the main clock is stopped, sets the feedback resistance OFF. (Initial value) 1 Sets the feedback resistance OFF. Bit 2--Reserved: Only write 0 to this bit. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 741 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 22 Power-Down Modes 22.2.4 Timer Control/Status Register (TCSR) Bit : Initial value : R/W : 7 6 5 4 3 2 1 0 OVF WT/IT TME PSS RST/NMI CKS2 CKS1 CKS0 0 0 0 0 0 0 0 0 R/(W)* R/W R/W R/W R/W R/W R/W R/W Note: * Only write 0 to clear the flag. TCSR is an 8-bit read/write register that selects the clock input to WDT1 TCNT and the mode. Here, we describe bit 4. For details of the other bits in this register, see section 12.2.2, Timer Control/Status Register (TCSR). The TCSR is initialized to H'00 at a reset and when in hardware standby mode. It is not initialized in software standby mode. Bit 4--Prescaler select (PSS): This bit selects the clock source input to WDT1 TCNT. It also controls operation when shifting low power dissipation modes. The operating mode selected after the SLEEP instruction is executed is determined in combination with other control bits. For details, see the description for clock selection in section 12.2.2, Timer Control/Status Register (TCSR), and this section. Bit 4 PSS Description 0 * TCNT counts the divided clock from the -based prescaler (PSM). * When the SLEEP instruction is executed in high-speed mode or medium-speed mode, operation shifts to sleep mode or software standby mode. (Initial value) * TCNT counts the divided clock from the -subclock-based prescaler (PSS). * When the SLEEP instruction is executed in high-speed mode or medium-speed mode, operation shifts to sleep mode, watch mode*, or subactive mode*. * When the SLEEP instruction is executed in subactive mode, operation shifts to subsleep mode, watch mode, or high-speed mode. 1 Note: * Always set high-speed mode when shifting to watch mode or subactive mode. Page 742 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 22.2.5 Section 22 Power-Down Modes Module Stop Control Register (MSTPCR) MSTPCRA Bit : 7 6 5 4 3 2 1 0 MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value : R/W : 0 0 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W 4 3 2 1 0 MSTPCRB (H8S/2646, H8S/2646R, H8S/2645) Bit : 7 6 MSTPB7 MSTPB6 Initial value : R/W : 5 -- MSTPB4 MSTPB3 MSTPB2 MSTPB1 MSTPB0 1 1 1 1 1 1 1 1 R/W R/W -- R/W R/W R/W R/W R/W 4 3 2 1 0 MSTPCRB (H8S/2648, H8S/2648R, H8S/2647) Bit : 7 6 5 MSTPB7 MSTPB6 MSTPB5 MSTPB4 MSTPB3 MSTPB2 MSTPB1 MSTPB0 Initial value : R/W 1 1 1 1 1 1 1 1 : R/W R/W R/W R/W R/W R/W R/W R/W : 7 6 5 4 3 2 1 0 MSTPC7 -- 1 1 1 1 1 1 1 1 : R/W -- R/W R/W R/W R/W R/W R/W : 7 6 5 4 3 2 1 0 -- -- -- -- -- -- MSTPCRC Bit Initial value : R/W MSTPC5 MSTPC4 MSTPC3 MSTPC2 MSTPC1 MSTPC0 MSTPCRD Bit MSTPD7 MSTPD6 Initial value : R/W : 1 1 R/W R/W Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- MSTPCR, comprising four 8-bit readable/writable registers, performs module stop mode control. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 743 of 1126 Section 22 Power-Down Modes H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM MSTPCRA to MSTPCRC are initialized to H'3FFFFF by a reset and in hardware standby mode. MSTPCRD is initialized to B'11****** by a reset and in hardware standby mode. They are not initialized in software standby mode. MSTPCRA Bits 7 to 0, MSTPCRB Bits 7 to 0, MSTPCRC Bits 7 and 5 to 0, MSTPCRD Bits 7 and 6--Module Stop (MSTPA7 to MSTPA0, MSTPB7, MSTPB6, and MSTPB4 to MSTPB0, MSTPC7, and MSTPC5 to MSTPC0, MSTPD7, and MSTPD6): These bits specify module stop mode. See table 22.4 for the method of selecting the on-chip peripheral functions. MSTPA7 to MSTPA0, MSTPB7, MSTPB6, and MSTPB4 to MSTPB0 MSTPC7, and MSTPC5 to MSTPC0, MSTPD7 and MSTPD6 Description (H8S/2646, H8S/2646R, H8S/2645) 0 Module stop mode is cleared (initial value of MSTPA7 and MSTPA6) 1 Module stop mode is set (initial value of MSTPA5 to 0, MSTPB7 to 0, MSTPC7 to 0, and MSTPD7 and 6) MSTPA7 to MSTPA0, MSTPB7 to MSTPB0 MSTPC7, and MSTPC5 to MSTPC0, MSTPD7 and MSTPD6 Description (H8S/2648, H8S/2648R, H8S/2647) 0 Module stop mode is cleared (initial value of MSTPA7 and MSTPA6) 1 Module stop mode is set (initial value of MSTPA5 to 0, MSTPB7 to 0, MSTPC7 to 0, and MSTPD7 and 6) Page 744 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 22.3 Section 22 Power-Down Modes Medium-Speed Mode In high-speed mode, when the SCK2 to SCK0 bits in SCKCR are set to 1, the operating mode changes to medium-speed mode as soon as the current bus cycle ends. In medium-speed mode, the CPU operates on the operating clock (/2, /4, /8, /16, or /32) specified by the SCK2 to SCK0 bits. The bus masters other than the CPU (DTC) also operate in medium-speed mode. On-chip supporting modules other than the bus masters always operate on the high-speed clock (). In medium-speed mode, a bus access is executed in the specified number of states with respect to the bus master operating clock. For example, if /4 is selected as the operating clock, on-chip memory is accessed in 4 states, and internal I/O registers in 8 states. Medium-speed mode is cleared by clearing all of bits SCK2 to SCK0 to 0. A transition is made to high-speed mode and medium-speed mode is cleared at the end of the current bus cycle. If a SLEEP instruction is executed when the SSBY bit in SBYCR is cleared to 0, and LSON bit in LPWRCR is cleared to 0, a transition is made to sleep mode. When sleep mode is cleared by an interrupt, medium-speed mode is restored. When the SLEEP instruction is executed with the SSBY bit = 1, LPWRCR LSON bit = 0, and TCSR (WDT1) PSS bit = 0, operation shifts to the software standby mode. When software standby mode is cleared by an external interrupt, medium-speed mode is restored. When the RES pin is set low and medium-speed mode is cancelled, operation shifts to the reset state. The same applies in the case of a reset caused by overflow of the watchdog timer. When the STBY pin is driven low, a transition is made to hardware standby mode. Figure 22.2 shows the timing for transition to and clearance of medium-speed mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 745 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 22 Power-Down Modes Medium-speed mode , supporting module clock Bus master clock Internal address bus SBYCR SBYCR Internal write signal Figure 22.2 Medium-Speed Mode Transition and Clearance Timing 22.4 Sleep Mode 22.4.1 Sleep Mode When the SLEEP instruction is executed when the SBYCR SSBY bit = 0 and the LPWRCR LSON bit = 0, the CPU enters the sleep mode. In sleep mode, CPU operation stops but the contents of the CPU's internal registers are retained. Other supporting modules do not stop. 22.4.2 Exiting Sleep Mode Sleep mode is exited by any interrupt, or signals at the RES, or STBY pins. Exiting Sleep Mode by Interrupts: When an interrupt occurs, sleep mode is exited and interrupt exception processing starts. Sleep mode is not exited if the interrupt is disabled, or interrupts other than NMI are masked by the CPU. Exiting Sleep Mode by RES pin: Setting the RES pin level Low selects the reset state. After the stipulated reset input duration, driving the RES pin High starts the CPU performing reset exception processing. Exiting Sleep Mode by STBY Pin: When the STBY pin level is driven Low, a transition is made to hardware standby mode. Page 746 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 22.5 Module Stop Mode 22.5.1 Module Stop Mode Section 22 Power-Down Modes Module stop mode can be set for individual on-chip supporting modules. When the corresponding MSTP bit in MSTPCR is set to 1, module operation stops at the end of the bus cycle and a transition is made to module stop mode. The CPU continues operating independently. Table 22.4 shows MSTP bits and the corresponding on-chip supporting modules. When the corresponding MSTP bit is cleared to 0, module stop mode is cleared and the module starts operating at the end of the bus cycle. In module stop mode, the internal states of modules other than the SCI, Motor control PWM, A/D converter and HCAN are retained. After reset clearance, all modules other than DTC are in module stop mode. When an on-chip supporting module is in module stop mode, read/write access to its registers is disabled. Table 22.4 MSTP Bits and Corresponding On-Chip Supporting Modules Register Bit Module MSTPCRA MSTPA6 Data transfer controller (DTC) MSTPA5 16-bit timer pulse unit (TPU) MSTPA3 Programmable pulse generator (PPG) MSTPA1 A/D converter MSTPB7 Serial communication interface 0 (SCI0) MSTPB6 Serial communication interface 1 (SCI1) MSTPB5 Serial communication interface 2 (SCI2) (H8S/2648, H8S/2648R, H8S/2647) MSTPC4 PC break controller (PBC) MSTPC3 Controller area network (HCAN) MSTPD7 MSTPD6 Motor control PWM (PWM) LCD controller/driver MSTPCRB MSTPCRC MSTPCRD Note: Unlisted bits of the registers are reserved. The write value must always be 1. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 747 of 1126 Section 22 Power-Down Modes 22.5.2 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Usage Notes DTC Module Stop: Depending on the operating status of the DTC, the MSTPA7 and MSTPA6 bits may not be set to 1. Setting of the DTC module stop mode should be carried out only when the respective module is not activated. For details, refer to section 8, Data Transfer Controller (DTC). On-Chip Supporting Module Interrupt: Relevant interrupt operations cannot be performed in module stop mode. Consequently, if module stop mode is entered when an interrupt has been requested, it will not be possible to clear the CPU interrupt source or the DTC activation source. Interrupts should therefore be disabled before entering module stop mode. Writing to MSTPCR: MSTPCR should only be written to by the CPU. Restrictions on Use in Medium-speed Mode: In medium-speed mode, registers of the HCAN, LCD controller, and motor control PWM timer musts not be written to. 22.6 Software Standby Mode 22.6.1 Software Standby Mode A transition is made to software standby mode when the SLEEP instruction is executed when the SBYCR SSBY bit = 1 and the LPWRCR LSON bit = 0, and the TCSR (WDT1) PSS bit = 0. In this mode, the CPU, on-chip supporting modules, and oscillator all stop. However, the contents of the CPU's internal registers, RAM data, and the states of on-chip supporting modules other than the SCI, A/D converter, Motor control PWM, HCAN, and I/O ports, are retained. Whether the address bus and bus control signals are placed in the high-impedance state. In this mode the oscillator stops, and therefore power dissipation is significantly reduced. Page 748 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 22.6.2 Section 22 Power-Down Modes Clearing Software Standby Mode Software standby mode is cleared by an external interrupt (NMI pin, or pins IRQ0 to IRQ5), or by means of the RES pin or STBY pin. * Clearing with an interrupt When an NMI or IRQ0 to IRQ5 interrupt request signal is input, clock oscillation starts, and after the elapse of the time set in bits STS2 to STS0 in SYSCR, stable clocks are supplied to the entire H8S/2646 Group chip, software standby mode is cleared, and interrupt exception handling is started. When clearing software standby mode with an IRQ0 to IRQ5 interrupt, set the corresponding enable bit to 1 and ensure that no interrupt with a higher priority than interrupts IRQ0 to IRQ5 is generated. Software standby mode cannot be cleared if the interrupt has been masked on the CPU side or has been designated as a DTC activation source. * Clearing with the RES pin When the RES pin is driven low, clock oscillation is started. At the same time as clock oscillation starts, clocks are supplied to the entire H8S/2646 Group chip. Note that the RES pin must be held low until clock oscillation stabilizes. When the RES pin goes high, the CPU begins reset exception handling. * Clearing with the STBY pin When the STBY pin is driven low, a transition is made to hardware standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 749 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 22 Power-Down Modes 22.6.3 Setting Oscillation Stabilization Time after Clearing Software Standby Mode Bits STS2 to STS0 in SBYCR should be set as described below. Using a Crystal Oscillator: Set bits STS2 to STS0 so that the standby time is at least 8 ms (the oscillation stabilization time). Table 22.5 shows the standby times for different operating frequencies and settings of bits STS2 to STS0. Table 22.5 Oscillation Stabilization Time Settings STS2 STS1 STS0 Standby Time 20 16 12 10 8 6 4 MHz MHz MHz MHz MHz MHz MHz Unit 0 0 0 8192 states 0.41 0.51 0.65 0.8 1.0 1.3 2.0 1 16384 states 0.82 1.0 1.3 1.6 2.0 2.7 4.1 0 32768 states 1.6 2.0 2.7 3.3 4.1 5.5 1 65536 states 3.3 4.1 5.5 6.6 0 131072 states 6.6 1 262144 states 13.1 16.4 21.8 26.2 32.8 43.6 65.6 0 Reserved 16 states* 1 1 0 1 1 8.2 8.2 ms 8.2 10.9 16.4 10.9 13.1 16.4 21.8 32.8 -- -- -- -- -- -- -- 0.8 1.0 1.3 1.6 2.0 1.7 4.0 s : Recommended time setting Note: * Do not use this setting. Using an External Clock: The PLL circuit requires a time for stabilization. Insert a wait of 2 ms min. 22.6.4 Software Standby Mode Application Example Figure 22.3 shows an example in which a transition is made to software standby mode at the falling edge on the NMI pin, and software standby mode is cleared at the rising edge on the NMI pin. In this example, an NMI interrupt is accepted with the NMIEG bit in SYSCR cleared to 0 (falling edge specification), then the NMIEG bit is set to 1 (rising edge specification), the SSBY bit is set to 1, and a SLEEP instruction is executed, causing a transition to software standby mode. Software standby mode is then cleared at the rising edge on the NMI pin. Page 750 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 22 Power-Down Modes Oscillator NMI NMIEG SSBY NMI exception Software standby mode handling (power-down mode) NMIEG=1 SSBY=1 SLEEP instruction Oscillation stabilization time tOSC2 NMI exception handling Figure 22.3 Software Standby Mode Application Example 22.6.5 Usage Notes I/O Port Status: In software standby mode, I/O port states are retained. If the OPE bit is set to 1, the address bus and bus control signal output is also retained. Therefore, there is no reduction in current dissipation for the output current when a high-level signal is output. Current Dissipation during Oscillation Stabilization Wait Period: Current dissipation increases during the oscillation stabilization wait period. Write Data Buffer Function: The write data buffer function and software standby mode cannot be used at the same time. When the write data buffer function is used, the WDBE bit in BCRL should be cleared to 0 to cancel the write data buffer function before entering software standby mode. Also check that external writes have finished, by reading external addresses, etc., before executing a SLEEP instruction to enter software standby mode. See section 7.7, Write Data Buffer Function, for details of the write data buffer function. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 751 of 1126 Section 22 Power-Down Modes 22.7 Hardware Standby Mode 22.7.1 Hardware Standby Mode H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM When the STBY pin is driven low, a transition is made to hardware standby mode from any mode. In hardware standby mode, all functions enter the reset state and stop operation, resulting in a significant reduction in power dissipation. As long as the prescribed voltage is supplied, on-chip RAM data is retained. I/O ports are set to the high-impedance state. In order to retain on-chip RAM data, the RAME bit in SYSCR should be cleared to 0 before driving the STBY pin low. Do not change the state of the mode pins (MD2 to MD0) while the H8S/2646 Group is in hardware standby mode. Hardware standby mode is cleared by means of the STBY pin and the RES pin. When the STBY pin is driven high while the RES pin is low, the reset state is set and clock oscillation is started. Ensure that the RES pin is held low until the clock oscillator stabilizes (at least 8 ms--the oscillation stabilization time--when using a crystal oscillator). When the RES pin is subsequently driven high, a transition is made to the program execution state via the reset exception handling state. Page 752 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 22.7.2 Section 22 Power-Down Modes Hardware Standby Mode Timing Figure 22.4 shows an example of hardware standby mode timing. When the STBY pin is driven low after the RES pin has been driven low, a transition is made to hardware standby mode. Hardware standby mode is cleared by driving the STBY pin high, waiting for the oscillation stabilization time, then changing the RES pin from low to high. Oscillator RES STBY Oscillation stabilization time Reset exception handling Figure 22.4 Hardware Standby Mode Timing 22.8 Watch Mode 22.8.1 Watch Mode CPU operation makes a transition to watch mode when the SLEEP instruction is executed in highspeed mode or subactive mode with SBYCR SSBY=1, LPWRCR DTON = 0, and TCSR (WDT1) PSS = 1. In watch mode, the CPU is stopped and supporting modules other than WDT1 are also stopped. The contents of the CPU is internal registers, the data in internal RAM, and the statuses of the internal supporting modules (excluding the SCI, ADC, HCAN, and Motor control PWM) and I/O ports are retained. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 753 of 1126 Section 22 Power-Down Modes 22.8.2 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Exiting Watch Mode Watch mode is exited by any interrupt (WOVI interrupt, NMI pin, or IRQ0 to IRQ5), or signals at the RES, or STBY pins. Exiting Watch Mode by Interrupts: When an interrupt occurs, watch mode is exited and a transition is made to high-speed mode or medium-speed mode when the LPWRCR LSON bit = 0 or to subactive mode when the LSON bit = 1. When a transition is made to high-speed mode, a stable clock is supplied to all LSI circuits and interrupt exception processing starts after the time set in SBYCR STS2 to STS0 has elapsed. In the case of IRQ0 to IRQ5 interrupts, no transition is made from watch mode if the corresponding enable bit has been cleared to 0, and, in the case of interrupts from the internal supporting modules, the interrupt enable register has been set to disable the reception of that interrupt, or is masked by the CPU. See section 22.6.3, Setting Oscillation Stabilization Time after Clearing Software Standby Mode, for how to set the oscillation stabilization time when making a transition from watch mode to high-speed mode. Exiting Watch Mode by RES pins: For exiting watch mode by the RES pins, see, Clearing with the RES pins in section 22.6.2, Clearing Software Standby Mode. Exiting Watch Mode by STBY pin: When the STBY pin level is driven Low, a transition is made to hardware standby mode. 22.8.3 Notes I/O Port Status: The status of the I/O ports is retained in watch mode. Also, when the OPE bit is set to 1, the address bus and bus control signals continue to be output. Therefore, when a High level is output, the current consumption is not diminished by the amount of current to support the High level output. Current Consumption when Waiting for Oscillation Stabilization: The current consumption increases during stabilization of oscillation. Page 754 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 22.9 Subsleep Mode 22.9.1 Subsleep Mode Section 22 Power-Down Modes When the SLEEP instruction is executed with the SBYCR SSBY bit = 0, LPWRCR LSON bit = 1, and TCSR (WDT1) PSS bit = 1, CPU operation shifts to subsleep mode. In subsleep mode, the CPU is stopped. Supporting modules other than WDT0, and WDT1 are also stopped. The contents of the CPU's internal registers, the data in internal RAM, and the statuses of the internal supporting modules (excluding the SCI, ADC, HCAN, and Motor control PWM) and I/O ports are retained. 22.9.2 Exiting Subsleep Mode Subsleep mode is exited by an interrupt (interrupts from internal supporting modules, NMI pin, or IRQ0 to IRQ5), or signals at the RES or STBY pins. Exiting Subsleep Mode by Interrupts: When an interrupt occurs, subsleep mode is exited and interrupt exception processing starts. In the case of IRQ0 to IRQ5 interrupts, subsleep mode is not cancelled if the corresponding enable bit has been cleared to 0, and, in the case of interrupts from the internal supporting modules, the interrupt enable register has been set to disable the reception of that interrupt, or is masked by the CPU. Exiting Subsleep Mode by RES: For exiting subsleep mode by the RES pins, see, Clearing with the RES pins in section 22.6.2, Clearing Software Standby Mode. Exiting Subsleep Mode by STBY Pin: When the STBY pin level is driven Low, a transition is made to hardware standby mode. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 755 of 1126 Section 22 Power-Down Modes 22.10 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Subactive Mode 22.10.1 Subactive Mode When the SLEEP instruction is executed in high-speed mode with the SBYCR SSBY bit = 1, LPWRCR DTON bit = 1, LSON bit = 1, and TCSR (WDT1) PSS bit = 1, CPU operation shifts to subactive mode. When an interrupt occurs in watch mode, and if the LSON bit of LPWRCR is 1, a transition is made to subactive mode. And if an interrupt occurs in subsleep mode, a transition is made to subactive mode. In subactive mode, the CPU operates at low speed on the subclock, and the program is executed step by step. Supporting modules other than WDT0, and WDT1 are also stopped. When operating the CPU in subactive mode, the SCKCR SCK2 to SCK0 bits must be set to 0. 22.10.2 Exiting Subactive Mode Subactive mode is exited by the SLEEP instruction or the RES or STBY pins. Exiting Subactive Mode by SLEEP Instruction: When the SLEEP instruction is executed with the SBYCR SSBY bit = 1, LPWRCR DTON bit = 0, and TCSR (WDT1) PSS bit = 1, the CPU exits subactive mode and a transition is made to watch mode. When the SLEEP instruction is executed with the SBYCR SSBY bit = 0, LPWRCR LSON bit = 1, and TCSR (WDT1) PSS bit = 1, a transition is made to subsleep mode. Finally, when the SLEEP instruction is executed with the SBYCR SSBY bit = 1, LPWRCR DTON bit = 1, LSON bit = 0, and TCSR (WDT1) PSS bit = 1, a direct transition is made to high-speed mode (SCK0 to SCK2 all 0). See section 22.11, Direct Transitions, for details of direct transitions. Exiting Subactive Mode by RES Pins: For exiting subactive mode by the RES pins, see, Claering with the RES pins in section 22.6.2, Clearing Software Standby Mode. Exiting Subactive Mode by STBY Pin: When the STBY pin level is driven Low, a transition is made to hardware standby mode. Page 756 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 22.11 Section 22 Power-Down Modes Direct Transitions 22.11.1 Overview of Direct Transitions There are three modes, high-speed, medium-speed, and subactive, in which the CPU executes programs. When a direct transition is made, there is no interruption of program execution when shifting between high-speed and subactive modes. Direct transitions are enabled by setting the LPWRCR DTON bit to 1, then executing the SLEEP instruction. After a transition, direct transition interrupt exception processing starts. Direct Transitions from High-Speed Mode to Subactive Mode: Execute the SLEEP instruction in high-speed mode when the SBYCR SSBY bit = 1, LPWRCR LSON bit = 1, and DTON bit = 1, and TSCR (WDT1) PSS bit = 1 to make a transition to subactive mode. Direct Transitions from Subactive Mode to High-Speed Mode: Execute the SLEEP instruction in subactive mode when the SBYCR SSBY bit = 1, LPWRCR LSON bit = 0, and DTON bit = 1, and TSCR (WDT1) PSS bit = 1 to make a direct transition to high-speed mode after the time set in SBYCR STS2 to STS0 has elapsed. 22.12 Clock Output Disabling Function Output of the clock can be controlled by means of the PSTOP bit in SCKCR, and DDR for the corresponding port. When the PSTOP bit is set to 1, the clock stops at the end of the bus cycle, and output goes high. clock output is enabled when the PSTOP bit is cleared to 0. When DDR for the corresponding port is cleared to 0, clock output is disabled and input port mode is set. Table 22.6 shows the state of the pin in each processing state. Table 22.6 Pin State in Each Processing State DDR 0 PSTOP -- 0 1 Hardware standby mode High impedance High impedance High impedance Software standby mode, watch mode, and direct transition High impedance Fixed high Fixed high Sleep mode and subsleep mode High impedance output Fixed high High-speed mode, medium-speed mode High impedance output Fixed high Subactive mode High impedance SUB output Fixed high REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 1 1 Page 757 of 1126 Section 22 Power-Down Modes 22.13 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Usage Notes 1. When making a transition to subactive mode or watch mode, set the DTC to enter module stop mode (write 1 to the relevant bits in MSTPCR), and then read the relevant bits to confirm that they are set to 1 before mode transition. Do not clear module stop mode (write 0 to the relevant bits in MSTPCR) until a transition from subactive mode to high-speed mode or medium-speed mode has been performed. If a DTC activation source occurs in subactive mode, the DTC will be activated only after module stop mode has been cleared and high-speed mode or medium-speed mode has been entered. 2. The on-chip peripheral modules (DTC and TPU) which halt operation in subactive mode cannot clear an interrupt in subactive mode. Therefore, if a transition is made to subactive mode while an interrupt is requested, the CPU interrupt source cannot be cleared. Disable the interrupts of each on-chip peripheral module before executing a SLEEP instruction to enter subactive mode or watch mode. Page 758 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics Section 23 Electrical Characteristics 23.1 Absolute Maximum Ratings Table 23.1 lists the absolute maximum ratings. Table 23.1 Absolute Maximum Ratings Item Power supply voltage Symbol Value Unit VCC -0.3 to +7.0 V PMWVCC LPVCC Input voltage (OSC1, OSC2) Vin -0.3 +3.5 V lnput voltage (XTAL, EXTAL) Vin -0.3 to VCC +0.3 V Input voltage (ports 4 and 9) Vin -0.3 to AVCC +0.3 V Input voltage (ports A to E, ports PF2, PF4 to PF6) Vin -0.3 to LPVCC +0.3 V Input voltage (ports H and J) Vin -0.3 to PWMVCC +0.3 V Input voltage (except ports 4, 9, A to E, ports PF2, PF4 to PF6, H and J) Vin -0.3 to VCC +0.3 V Reference voltage Vref -0.3 to AVCC +0.3 V Analog power supply voltage AVCC -0.3 to +7.0 V Analog input voltage VAN -0.3 to AVCC +0.3 V Operating temperature Topr Regular specifications: -20 to +75 C Wide-range specifications: -40 to +85 C Storage temperature Tstg -55 to +125 C Caution: Permanent damage to the chip may result if absolute maximum rating are exceeded. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 759 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics 23.2 Power Supply Voltage and Operating Frequency Range Power supply voltage and operating frequency ranges (shaded areas) are shown in figure 23.1. Operating range in high-speed, medium-speed, and sleep modes 24 Frequency (MHz) 20 16 12 8 4 0 3 3.5 4 4.5 5 5.5 6 Power supply voltage (V) Operating range in watch, subactive, and subsleep modes Frequency (kHz) 32.768 0 3 3.5 4 4.5 5 5.5 6 Power supply voltage (V) Figure 23.1 Power Supply Voltage and Operating Ranges Page 760 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 23.3 Section 23 Electrical Characteristics DC Characteristics Table 23.2 lists the DC characteristics. Table 23.3 lists the permissible output currents. Table 23.2 DC Characteristics Conditions: VCC = PWMVCC = 4.5 V to 5.5 V, LPVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = PWMVSS = PLLVSS = AVSS = 0 V, Ta = -20C to +75C 1 (regular specifications), Ta = -40C to +85C (wide-range specifications)* Item Symbol Schmitt trigger input voltage IRQ0 to IRQ5 Input high voltage RES, STBY, NMI, FWE, MD2 to MD0 Input low voltage + VT + - Min Typ Max Unit Test Conditions 1.0 -- -- V -- -- VCC x 0.7 VT - VT 0.4 -- -- VIH VCC - 0.7 -- VCC + 0.3 EXTAL VCC x 0.7 -- VCC + 0.3 Ports 1 to 3, 5, H, J, K, Ports PF0, PF3, PF7 2.2 -- VCC + 0.3 HRxD 2.2 -- VCC + 0.3 Ports A to E, Ports PF2, PF4 to PF6 2.2 -- LPVCC + 0.3 Ports 4, 9 AVCC x 0.7 -- AVCC + 0.3 -0.3 -- 0.5 RES, STBY, NMI, FWE, MD2 to MD0 VIL EXTAL -0.3 -- 0.8 Ports 1 to 3, 5, A to F, H, J, K -0.3 -- 0.8 HRxD -0.3 -- VCC x 0.2 Ports 4, 9 -0.3 -- AVCC x 0.2 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 - VT V V Page 761 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics Item Output high voltage Output low voltage Symbol Min Typ Max Unit Test Conditions Ports 1 to 3, 5, VOH H, J, K, Ports PF0, PF3, PF7, HTxD VCC - 0.5 -- -- V Ports A to E, Ports PF2, PF4 to PF6 LPVCC - 0.5 -- -- IOH = -200 A Ports 1 to 3, 5, H, J, K, Ports PF0, PF3, PF7, HTxD 3.5 -- -- IOH = -1 mA Ports A to E, Ports PF2, PF4 to PF6 3.5 -- -- IOH = -1 mA PWM1A to 1H, PWM2A to 2H PWMVCC - 0.5 -- -- IOH = -15 mA All output pins VOL except PWM1A to PWM1H and PWM2A to PWM2H -- -- 0.4 V IOL = 1.6 mA PWM1A to 1H, PWM2A to 2H -- -- 0.5 V IOL = 15 mA -- -- 1.0 A -- -- 1.0 Vin = 0.5 to VCC - 0.5 HRxD, FWE -- -- 1.0 Ports 4, 9 -- -- 1.0 Ports 1 to 3, 5, ITSI H, J, K, Ports PF0, PF3, PF7, HTxD -- -- 1.0 Ports A to E, PF2, PF4 to PF6 -- -- 1.0 Input leakage RES current STBY, NMI, MD2 to MD0 Three-state leakage current (off state) Page 762 of 1126 | Iin | IOH = -200 A Vin = 0.5 to AVCC - 0.5 A Vin = 0.5 to VCC - 0.5 Vin = 0.5 to LPVCC - 0.5 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics Item Symbol Min Typ Max Unit Test Conditions MOS input Ports A to E pull-up current -IP 50 -- 300 A Vin = 0 V Cin pF Vin = 0 V, f = 1 MHz, Ta = 25C Input capacitance Current 2 dissipation* RES -- -- 30 NMI -- -- 30 All input pins except RES and NMI -- -- 15 -- 60 80 mA f = 20 MHz Sleep mode -- 50 65 mA f = 20 MHz All modules stopped -- 40 -- mA f = 20 MHz (reference values) Medium-speed mode (/32) -- 40 -- mA f = 20 MHz (reference values) Subactive mode -- 130 220 A Using 32.768 kHz crystal resonator Subsleep mode -- 95 160 A Using 32.768 kHz crystal resonator Watch mode -- 15 60 A Using 32.768 kHz crystal resonator Standby mode -- 2.0 10 A Ta 50C -- -- 80 -- 10 20 mA -- 0.1 10 A -- -- 80 -- 1.0 2.0 mA -- -- 5.0 A -- 2.5 4.0 mA -- -- 5.0 A 2.0 -- -- V Normal operation 4 ICC* LCD power During LPlCC supply port operation power supply Standby mode current Analog During A/D power supply conversion current Idle AlCC Reference current AlCC During A/D conversion Idle RAM standby voltage* 3 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 VRAM 50C < Ta Ta 50C 50C < Ta AVCC = 5.0 V Vref = 5.0 V Page 763 of 1126 Section 23 Electrical Characteristics H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Notes: 1. If the A/D converter is not used, do not leave the AVCC, Vref, and AVSS pins open. Apply a voltage between 4.5 V and 5.5 V to the AVCC and Vref pins by connecting them to VCC, for instance. Set Vref AVCC. 2. Current dissipation values are for VIH min = VCC - 0.5 V, VIL max = 0.5 V with all output pins unloaded and the on-chip pull-up resistors in the off state. 3. The values are for VRAM VCC < 3.0 V, VIH min = VCC -0.1 V, and VIL max = 0.1 V. 4. ICC depends on VCC and f as follows: ICC max. = 1.0 (mA) + 0.72 (mA/(CMHz x V))x VCC x f (at normal operation) ICC max. = 1.0 (mA) + 0.58 (mA/(CMHz x V))x VCC x f (at sleep) Page 764 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics Table 23.3 Permissible Output Currents Conditions: VCC = PWMVCC = 4.5 V to 5.5 V, LPVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = PWMVSS = PLLVSS = AVSS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Item Symbol Min Typ Max Unit Permissible output All output pins except low current (per pin) PWM1A to PWM1H, PWM2A to PWM2H IOL -- -- 10 mA IOL -- -- 25 mA PWM1A to PWM1H, PWM2A to PWM2H Permissible output low current (total) Ta = 85C -- -- 30 mA Ta = 25C -- -- 40 mA Ta =-40C Total of all output pins except PWM1A to PWM1H, PWM2A to PWM2H IOL -- -- 80 mA Total of PWM1A to PWM1H, PWM2A to PWM2H IOL -- -- 150 mA Ta = 85C -- -- 180 mA Ta = 25C -- -- 220 mA Ta =-40C -IOH -- -- 2.0 mA -IOH -- -- 25 mA Ta = 85C -- -- 30 mA Ta = 25C -- -- 40 mA Ta =-40C Permissible output All output pins except high current (per pin) PWM1A to PWM1H, PWM2A to PWM2H PWM1A to PWM1H, PWM2A to PWM2H Permissible output high current (total) Test condition Total of all output pins except PWM1A to PWM1H, PWM2A to PWM2H - IOH -- -- 40 mA Total of PWM1A to PWM1H, PWM2A to PWM2H - IOL -- -- 150 mA Ta = 85C -- -- 180 mA Ta = 25C -- -- 220 mA Ta =-40C Note: To protect chip reliability, do not exceed the output current values in table 23.3. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 765 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics 23.4 AC Characteristics Figure 23.2 show, the test conditions for the AC characteristics. 5V RL LSI output pin C RH C = 50 pF: Ports A to F (In case of expansion bus control signal output pin setting) C = 30 pF: All ports except ports A to F RL = 2.4 k RH = 12 k Input/output timing measurement levels * Low level: 0.8 V * High level: 2.0 V Figure 23.2 Output Load Circuit Page 766 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 23.4.1 Section 23 Electrical Characteristics Clock Timing Table 23.4 lists the clock timing Table 23.4 Clock Timing Condition: VCC = PWMVCC = 4.5 V to 5.5 V, LPVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = PWMVSS = PLLVSS = AVSS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition Item Symbol Min Max Unit Test Conditions Clock cycle time tcyc 50 250 ns Figure 23.3 Clock high pulse width tCH 25 -- ns Clock low pulse width tCL 25 -- ns Clock rise time tCr -- 10 ns Clock fall time tCf -- 10 ns Clock oscillator settling time at reset (crystal) tOSC1 20 -- ms Figure 23.4 Clock oscillator settling time in software standby (crystal) tOSC2 8 -- ms Figure 22.3 Sub clock oscillator settling time tOSC3 -- 2 s Figure 23.4 Sub clock oscillator frequency fSUB 32.768 kHz Sub clock (SUB) cycle time fSUB 30.5 s REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 767 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics tcyc tCH tCf tCL tCr Figure 23.3 System Clock Timing VCC STBY tOSC1 tOSC1 RES Figure 23.4 Oscillator Settling Timing Page 768 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 23.4.2 Section 23 Electrical Characteristics Control Signal Timing Table 23.5 lists the control signal timing. Table 23.5 Control Signal Timing Condition: VCC = PWMVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = PWMVSS = PLLVSS = AVSS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition Item Symbol Min Max Unit Test Conditions RES setup time tRESS 200 -- ns Figure 23.5 RES pulse width tRESW 20 -- tcyc NMI setup time tNMIS 150 -- ns NMI hold time tNMIH 10 -- NMI pulse width (exiting software standby mode) tNMIW 200 -- ns IRQ setup time tIRQS 150 -- ns IRQ hold time tIRQH 10 -- ns IRQ pulse width (exiting software standby mode) tIRQW 200 -- ns REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Figure 23.6 Page 769 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics tRESS tRESS RES tRESW Figure 23.5 Reset Input Timing tNMIS tNMIH NMI tNMIW IRQ tIRQW tIRQS tIRQH IRQ Edge input tIRQS IRQ Level input Figure 23.6 Interrupt Input Timing Page 770 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 23.4.3 Section 23 Electrical Characteristics Bus Timing Table 23.6 lists the bus timing. Table 23.6 Bus Timing Condition: VCC = PWMVCC = 4.5 V to 5.5 V, LPVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = PWMVSS = PLLVSS = AVSS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition Item Symbol Min Max Unit Test Conditions Address delay time tAD -- 45 ns Figure 23.7 to Address setup time tAS 0.5 x tcyc - 32 -- ns Figure 23.11 Address hold time tAH 0.5 x tcyc - 15 -- ns AS delay time tASD -- 45 ns RD delay time 1 tRSD1 -- 45 ns RD delay time 2 tRSD2 -- 45 ns Read data setup time tRDS 20 -- ns Read data hold time tRDH 10 -- ns Read data access time 1 tACC1 -- 1.0 x tcyc - 60 ns Read data access time 2 tACC2 -- 1.5 x tcyc - 50 ns Read data access time 3 tACC3 -- 2.0 x tcyc - 60 ns Read data access time 4 tACC4 -- 2.5 x tcyc - 50 ns Read data access time 5 tACC5 -- 3.0 x tcyc - 60 ns WR delay time 1 tWRD1 -- 35 ns WR delay time 2 tWRD2 -- 45 ns WR pulse width 1 tWSW1 1.0 x tcyc - 40 -- ns WR pulse width 2 tWSW2 1.5 x tcyc - 30 -- ns Write data delay time tWDD -- 45 ns Write data setup time tWDS 0.5 x tcyc - 20 -- ns Write data hold time tWDH 0.5 x tcyc - 10 -- ns WAIT setup time tWTS 30 -- ns WAIT hold time tWTH 5 -- ns REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 771 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics T1 T2 tAD A23 to A0 tAS tAH tASD tASD AS tRSD1 RD (read) tAS tRSD2 tACC2 tACC3 tRDS tRDH D15 to D0 (read) tWRD2 tWRD2 HWR, LWR (write) tAH tAS tWDD tWSW1 tWDH D15 to D0 (write) Figure 23.7 Basic Bus Timing (Two-State Access) Page 772 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics T1 T2 T3 tAD A23 to A0 tAS tAH tASD tASD AS tRSD1 RD (read) tRSD2 tACC4 tAS tRDS tACC5 tRDH D15 to D0 (read) tWRD1 tWRD2 HWR, LWR (write) tAH tWDD tWDS tWSW2 tWDH D15 to D0 (write) Figure 23.8 Basic Bus Timing (Three-State Access) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 773 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics T1 T2 Tw tWTS tWTH tWTS tWTH T3 A23 to A0 AS RD (read) D15 to D0 (read) HWR, LWR (write) D15 to D0 (write) WAIT Figure 23.9 Basic Bus Timing (Three-State Access with One Wait State) Page 774 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM T1 Section 23 Electrical Characteristics T2 or T3 T1 T2 tAD A23 to A0 tAS tAH tASD tASD AS tRSD2 RD (read) tACC3 tRDS tRDH D15 to D0 (read) Figure 23.10 Burst ROM Access Timing (Two-State Access) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 775 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics T1 T2 or T3 T1 tAD A23 to A0 AS tRSD2 RD (read) tACC1 tRDS tRDH D15 to D0 (read) Figure 23.11 Burst ROM Access Timing (One-State Access) Page 776 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 23.4.4 Section 23 Electrical Characteristics Timing of On-Chip Supporting Modules Table 23.7 lists the timing of on-chip supporting modules. Table 23.7 Timing of On-Chip Supporting Modules Condition: VCC = PWMVCC = 4.5 V to 5.5 V, LPVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = PWMVSS = PLLVSS = AVSS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition Item Symbol Min Max Unit Test Conditions Output data delay time tF -- 50 ns Figure 23.12 Input data setup time tPRS 30 -- Input data hold time tPRH 30 -- PPG Pulse output delay time tPOD -- 50 ns Figure 23.13 TPU Timer output delay time tTOCD -- 50 ns Figure 23.14 Timer input setup time tTICD 30 -- Timer clock input setup time Figure 23.15 I/O port tTCKS 30 -- ns Single edge tTCKWH 1.5 -- tcyc Both edges tTCKWL 2.5 -- tMPWMOD -- 50 ns Figure 23.16 tScyc 4 -- tcyc Figure 23.17 6 -- Input clock pulse width tSCKW 0.4 0.6 tScyc Input clock rise time tSCKr -- 1.5 tcyc Input clock fall time tSCKf -- 1.5 Transmit data delay time tTXD -- 50 Receive data setup time (synchronous) tRXS 50 -- Receive data hold time (synchronous) tRXH 50 -- A/D Trigger input setup time converter tTRGS 50 HCAN Transmit data delay time tHTXD Transmit data setup time Transmit data hold time Timer clock pulse width PWM Pulse output delay time SCI Input clock cycle REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Asynchronous Synchronous ns Figure 23.18 -- ns Figure 23.19 -- 100 ns Figure 23.20 tHRXS 100 -- tHRXH 100 -- Page 777 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics T2 T1 tPRS tPRH Ports 1 to 5, 9, A to F, K (read) tPWD Ports 1 to 3, 5, A to F, K (write) T1 T3 T2 T4 tPRS tPRH Ports H, J (read) tPWD Ports H, J (write) Figure 23.12 I/O Port Input/Output Timing tPOD PO15 to 8 Figure 23.13 PPG Output Timing Page 778 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics tTOCD Output compare output* tTICS Input capture input* Note: * TIOCA0 to TIOCA5, TIOCB0 to TIOCB5, TIOCC0, TIOCC3, TIOCD0, TIOCD3 Figure 23.14 TPU Input/Output Timing tTCKS tTCKS TCLKA to TCLKD tTCKWL tTCKWH Figure 23.15 TPU Clock Input Timing tMPWMOD PWM1A to PWM1H, PWM2A to PWM2H Figure 23.16 Motor Control PWM Output Timing REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 779 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics H8S/2646, H8S/2646R, H8S/2645: SCK0, SCK1 H8S/2648, H8S/2648R, H8S/2647: SCK0 to SCK2 tSCKr tSCKW tSCKf tScyc Figure 23.17 SCK Clock Input Timing SCKn tTXD TxDn (transmit data) tRXS tRXH RxDn (receive data) H8S/2646, H8S/2646R, H8S/2645: n = 0, 1 H8S/2648, H8S/2648R, H8S/2647: n = 0 to 2 Figure 23.18 SCI Input/Output Timing (Clock Synchronous Mode) tTRGS ADTRG Figure 23.19 A/D Converter External Trigger Input Timing Page 780 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM CK VOL Section 23 Electrical Characteristics VOL tHTXD HTxD (transmit data) tHRXS tHRXH HRxD (receive data) Figure 23.20 HCAN Input/Output Timing REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 781 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics 23.5 A/D Conversion Characteristics Table 23.8 lists the A/D conversion characteristics. Table 23.8 A/D Conversion Characteristics Condition: VCC = PWMVCC = 4.5 V to 5.5 V, LPVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = PWMVSS = PLLVSS = AVSS = 0 V, Ta = -20C to +75C (regular specifications), Ta = -40C to +85C (wide-range specifications) Condition Item Min Typ Max Unit Resolution 10 10 10 bits Conversion time 10 -- 200 s Analog input capacitance -- -- 20 pF Permissible signal-source impedance -- -- 5 k Nonlinearity error -- -- 3.5 LSB Offset error -- -- 3.5 LSB Full-scale error -- -- 3.5 LSB Quantization -- 0.5 -- LSB Absolute accuracy -- -- 4.0 LSB Page 782 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM 23.6 Section 23 Electrical Characteristics LCD Characteristics Table 23.9 LCD Characteristics Condition: VCC = PWMVCC = 4.5 V to 5.5 V, LPVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS = PWMVSS = PLLVSS = AVSS = 0 V, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition Item Applicable Pins Symbol Min Typ Max Unit Test Conditions Segment driver step-down voltage SEG1 to SEG24 (H8S/2646, H8S/2646R, H8S/2645) VDS -- -- 0.6 V ID = 2 A* 1 VDC -- -- 0.3 V ID = 2 A* 1 RLCD 40 300 1000 k Between V1 and VSS VLCD 4.5 -- LPVCC V SEG1 to SEG40 (H8S/2648, H8S/2648R, H8S/2647) Common driver step-down voltage COM1 to COM4 LCD power supply division resistor LCD voltage V1 * 2 Notes: 1. Voltage step-down between power supply pins V1, V2, V3, and VSS and segment pins. 2. If the LCD voltage is provided by an external power supply, the following relationship must be maintained: LPVCC V1 V2 V3 VSS. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 783 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics 23.7 Flash Memory Characteristics Table 23.10 shows the flash memory characteristics. Table 23.10 Flash Memory Characteristics Conditions: VCC = PWMVCC = 4.5 V to 5.5 V, LPVCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, Vref = 4.5 V to AVCC, VSS PWMVSS = PLLVSS, AVSS = 0 V, Ta = 0 to +75C (Programming/erasing operating temperature range: regular specification) Item Programming time* * * 1 2 4 Symbol Min Typ Max Unit tP -- 10 200 ms/128 bytes Erase time*1 *3 *5 tE -- 100 1200 ms/block Reprogramming count NWEC -- -- 100 Times Programming Wait time after SWE bit setting*1 tsswe 1 1 -- s Wait time after PSU bit setting*1 tspsu 50 50 -- s Wait time after P bit setting*1*4 Erase tsp30 28 30 32 s tsp200 198 200 202 s tsp10 8 10 12 s Wait time after P bit clear*1 tcp 5 5 -- s Wait time after PSU bit clear*1 tcpsu 5 5 -- s Wait time after PV bit setting*1 tspv 4 4 -- s Wait time after H'FF dummy write*1 tspvr 2 2 -- s Wait time after PV bit clear*1 tcpv 2 2 -- s Wait time after SWE bit clear*1 tcswe 100 100 -- s Maximum programming count*1*4 N -- -- 1000 Times Wait time after SWE bit setting* 1 -- s 1 tsswe 1 Wait time after ESU bit setting*1 tsesu 100 100 -- s Wait time after E bit setting*1*5 tse 10 10 100 ms Wait time after E bit clear*1 tce 10 10 -- s Wait time after ESU bit clear*1 tcesu 10 10 -- s Wait time after EV bit setting*1 tsev 20 20 -- s Wait time after H'FF dummy write*1 tsevr 2 2 -- s Wait time after EV bit clear*1 tcev 4 4 -- s Wait time after SWE bit clear*1 tcswe 100 100 -- s Maximum erase count*1*5 N 12 -- 120 Times Page 784 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Section 23 Electrical Characteristics Notes: 1. Make each time setting in accordance with the program or erase algorithm. 2. Programming time per 128 bytes (Shows the total period for which the P-bit in the flash memory control register (FLMCR1) is set. It does not include the programming verification time.) 3. Block erase time (Shows the total period for which the E-bit in FLMCR1 is set. It does not include the erase verification time.) 4. To specify the maximum programming time value (tP(max)) in the 128-byte programming algorithm, set the max. value (1000) for the maximum programming count (N). The wait time after P bit setting should be changed as follows according to the value of the programming counter (n). Programming counter (n) = 1 to 6: tsp30 = 30 s Programming counter (n) = 7 to 1000: tsp200 = 200 s [In additional programming] Programming counter (n)= 1 to 6: tsp10 = 10 s 5. For the maximum erase time (tE(max)), the following relationship applies between the wait time after E bit setting (tse) and the maximum erase count (N): tE(max) = Wait time after E bit setting (tse) x maximum erase count (N) To set the maximum erase time, the values of (tse) and (N) should be set so as to satisfy the above formula. Examples: When tse = 100 [ms], N = 12 times When tse = 10 [ms], N = 120 times REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 785 of 1126 Section 23 Electrical Characteristics Page 786 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Appendix A Instruction Set A.1 Instruction List Operand Notation Rs General register (destination)* General register (source)* Rn General register* Rd ERn General register (32-bit register) MAC Multiply-and-accumulate register (32-bit register) (EAd) Destination operand (EAs) Source operand EXR Extended control register CCR Condition-code register N N (negative) flag in CCR Z Z (zero) flag in CCR V V (overflow) flag in CCR C C (carry) flag in CCR PC Program counter SP Stack pointer #IMM Immediate data disp Displacement + Add - Subtract x Multiply / Divide Logical AND Logical OR Logical exclusive OR Transfer from the operand on the left to the operand on the right, or transition from the state on the left to the state on the right Logical NOT (logical complement) ( ) < > Contents of operand :8/:16/:24/:32 8-, 16-, 24-, or 32-bit length Note: * General registers include 8-bit registers (R0H to R7H, R0L to R7L), 16-bit registers (R0 to R7, E0 to E7), and 32-bit registers (ER0 to ER7). REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 787 of 1126 Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Condition Code Notation Symbol Changes according to the result of instruction * Undetermined (no guaranteed value) 0 Always cleared to 0 1 Always set to 1 -- Not affected by execution of the instruction Page 788 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 MOV B B B B B B B B B MOV.B @aa:16,Rd MOV.B @aa:32,Rd MOV.B Rs,@ERd MOV.B Rs,@(d:16,ERd) MOV.B Rs,@(d:32,ERd) MOV.B Rs,@-ERd MOV.B Rs,@aa:8 MOV.B Rs,@aa:16 MOV.B Rs,@aa:32 W B MOV.B @aa:8,Rd MOV.W @ERs,Rd B MOV.B @ERs+,Rd W 4 B MOV.B @(d:32,ERs),Rd W B MOV.B @(d:16,ERs),Rd MOV.W Rs,Rd B MOV.B @ERs,Rd MOV.W #xx:16,Rd B MOV.B Rs,Rd Operand Size B 2 #xx MOV.B #xx:8,Rd Mnemonic Rn 2 2 @ERn 2 2 2 8 4 8 2 2 @(d,ERn) @-ERn/@ERn+ 4 @aa 6 4 2 6 4 2 @@aa @(d,PC) Addressing Mode/ Instruction Length (Bytes) -- Jun 10, 2010 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- @aa:16Rd8 @aa:32Rd8 Rs8@ERd Rs8@(d:16,ERd) Rs8@(d:32,ERd) ERd32-1ERd32,Rs8@ERd Rs8@aa:8 Rs8@aa:16 Rs8@aa:32 #xx:16Rd16 Rs16Rd16 @ERsRd16 -- -- @(d:32,ERs)Rd8 -- -- -- -- @(d:16,ERs)Rd8 @aa:8Rd8 -- -- @ERsRd8 @ERsRd8,ERs32+1ERs32 -- -- Rs8Rd8 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 2 1 2 4 3 2 3 5 3 2 4 3 2 3 5 3 2 1 1 Advanced 0 -- I H N Z V C -- -- Operation #xx:8Rd8 No. of States*1 Condition Code Table A.1 (1) Data Transfer Instructions H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Instruction Set Page 789 of 1126 MOV L L L L L L MOV.L @(d:16,ERs),ERd MOV.L @(d:32,ERs),ERd MOV.L @ERs+,ERd MOV.L @aa:16,ERd MOV.L @aa:32,ERd W MOV.W Rs,@aa:32 MOV.L @ERs,ERd W MOV.W Rs,@aa:16 L 6 W MOV.W Rs,@-ERd L W MOV.W Rs,@(d:32,ERd) MOV.L ERs,ERd W MOV.W Rs,@(d:16,ERd) #xx MOV.L #xx:32,ERd W W W MOV.W @aa:16,Rd MOV.W Rs,@ERd W MOV.W @ERs+,Rd MOV.W @aa:32,Rd W W MOV.W @(d:16,ERs),Rd Operand Size MOV.W @(d:32,ERs),Rd Mnemonic Rn 2 @ERn 4 2 4 @(d,ERn) 10 6 8 4 8 @-ERn/@ERn+ 4 2 2 @aa 8 6 6 4 6 4 -- -- -- -- -- -- -- -- -- -- @aa:32Rd16 Rs16@ERd Rs16@(d:16,ERd) Rs16@(d:32,ERd) -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Rs16@aa:16 Rs16@aa:32 #xx:32ERd32 ERs32ERd32 @ERsERd32 @(d:16,ERs)ERd32 @(d:32,ERs)ERd32 @ERsERd32,ERs32+4@ERs32 @aa:16ERd32 @aa:32ERd32 ERd32-2ERd32,Rs16@ERd -- -- -- -- @aa:16Rd16 @ERsRd16,ERs32+2ERs32 -- -- -- -- @(d:32,ERs)Rd16 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 6 5 5 7 5 4 1 3 4 3 3 5 3 2 4 3 3 5 3 Advanced I H N Z V C @(d:16,ERs)Rd16 Operation No. of States*1 Condition Code Page 790 of 1126 -- @@aa @(d,PC) Addressing Mode/ Instruction Length (Bytes) Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 #xx -- -- ERs32@(d:32,ERd) -- -- -- -- -- -- -- -- -- -- -- -- -- -- @SPRn16,SP+2SP @SPERn32,SP+4SP SP-2SP,Rn16@SP SP-4SP,ERn32@SP (@SPERn32,SP+4SP) [2] [2] Cannot be used in this LSI Cannot be used in this LSI MOVFPE @aa:16,Rd MOVTPE Rs,@aa:16 MOVFPE MOVTPE 4 Repeated for each register saved (SP-4SP,ERn32@SP) Repeated for each register restored L STM (ERm-ERn),@-SP -- -- -- -- -- -- 7/9/11 [1] 7/9/11 [1] 5 3 STM 4 0 -- 0 -- L 4 2 LDM @SP+,(ERm-ERn) 5 3 6 5 5 7 5 4 LDM 0 -- 0 -- 0 -- -- -- ERs32@aa:32 0 -- -- -- ERs32@aa:16 0 -- 0 -- 0 -- 0 -- L PUSH 4 2 -- -- ERd32-4ERd32,ERs32@ERd -- -- -- -- ERs32@(d:16,ERd) Advanced I H N Z V C ERs32@ERd Operation PUSH.L ERn W POP.W Rn 8 6 @aa L L MOV.L ERs,@aa:32 4 @(d,PC) W L MOV.L ERs,@aa:16 @@aa PUSH.W Rn L MOV.L ERs,@-ERd 10 Rn MOV.L ERs,@(d:32,ERd) L 4 @ERn 6 L @(d,ERn) @-ERn/@ERn+ MOV.L ERs,@(d:16,ERd) L MOV.L ERs,@ERd -- POP.L ERn POP MOV Operand Size Mnemonic No. of States*1 Condition Code Jun 10, 2010 Addressing Mode/ Instruction Length (Bytes) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 791 of 1126 L L ADDS #1,ERd ADDS #2,ERd ADDS #4,ERd L B B W 4 INC.L #2,ERd DAA Rd SUB.B Rs,Rd SUB.W #xx:16,Rd SUB L L ADDX Rs,Rd INC.L #1,ERd B ADDX #xx:8,Rd W B 2 ADD.L ERs,ERd INC.W #2,Rd L ADD.L #xx:32,ERd B L 6 ADD.W Rs,Rd W W ADD.W #xx:16,Rd INC.W #1,Rd W 4 ADD.B Rs,Rd INC.B Rd B 2 B ADD.B #xx:8,Rd #xx DAA INC ADDS ADDX ADD Operand Size Mnemonic Rn 2 2 2 2 2 2 2 2 2 2 2 2 2 2 I H N Z V C 1 1 1 1 1 2 -- -- ---- -- ---- -- ---- -- ---- -- ---- -- ---- -- Rd8+Rs8+CRd8 ERd32+1ERd32 ERd32+2ERd32 ERd32+4ERd32 ---- -- -- [3] Rd8-Rs8Rd8 Rd16-#xx:16Rd16 ---- ERd32+1ERd32 -- * ---- Rd16+2Rd16 Rd8 decimal adjustRd8 ---- Rd16+1Rd16 ERd32+2ERd32 ---- Rd8+1Rd8 [5] [5] * -- -- -- -- -- 1 -- [4] Rd8+#xx:8+CRd8 1 1 1 1 1 1 1 3 1 2 1 ERd32+ERs32ERd32 -- [3] Rd16+#xx:16Rd16 -- [3] -- Rd8+Rs8Rd8 -- [4] -- Rd8+#xx:8Rd8 ERd32+#xx:32ERd32 1 Advanced No. of States*1 Rd16+Rs16Rd16 Operation Condition Code -- @@aa @(d,PC) @aa @-ERn/@ERn+ @ERn @(d,ERn) Addressing Mode/ Instruction Length (Bytes) Page 792 of 1126 (2) Arithmetic Instructions Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 B W B W DAS Rd MULXU.B Rs,Rd MULXU.W Rs,ERd MULXS.B Rs,Rd MULXS.W Rs,ERd MULXU MULXS L B DEC.L #2,ERd L DEC.L #1,ERd L SUBS #4,ERd W L SUBS #2,ERd DEC.W #2,Rd L SUBS #1,ERd B B SUBX Rs,Rd W B 2 SUBX #xx:8,Rd DEC.W #1,Rd L SUB.L ERs,ERd DEC.B Rd L 6 SUB.L #xx:32,ERd DAS DEC SUBS SUBX W SUB.W Rs,Rd Rn 4 4 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ERd32-2ERd32 ERd32-4ERd32 Rd8 decimal adjustRd8 1 1 -- * -- 1 -- -- -- (signed multiplication) -- -- Rd8xRs8Rd16 (signed multiplication) Rd16xRs16ERd32 (unsigned multiplication) Rd16xRs16ERd32 -- -- -- -- 21 13 -- -- -- * ERd32-2ERd32 1 -- 20 -- -- ERd32-1ERd32 1 -- -- -- -- -- -- -- -- -- Rd16-2Rd16 1 -- 12 -- -- Rd16-1Rd16 1 Rd8xRs8Rd16 (unsigned multiplication) -- -- -- -- -- -- -- -- Rd8-1Rd8 [5] [5] 1 3 ERd32-1ERd32 -- [4] ERd32-ERs32ERd32 Rd8-Rs8-CRd8 -- [4] ERd32-#xx:32ERd32 -- -- [3] Rd16-Rs16Rd16 1 Advanced No. of States*1 Rd8-#xx:8-CRd8 I H N Z V C Operation SUB Operand Size Mnemonic Condition Code Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 -- @@aa @(d,PC) @aa @-ERn/@ERn+ @(d,ERn) @ERn #xx Addressing Mode/ Instruction Length (Bytes) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 793 of 1126 EXTU NEG CMP DIVXS DIVXU L B W L W L NEG.W Rd NEG.L ERd EXTU.W Rd EXTU.L ERd L 6 CMP.L #xx:32,ERd NEG.B Rd W CMP.W Rs,Rd CMP.L ERs,ERd B B 2 CMP.B #xx:8,Rd W 4 W DIVXS.W Rs,ERd CMP.W #xx:16,Rd B divxs.B Rs,Rd CMP.B Rs,Rd W DIVXU.W Rs,ERd Operand Size B #xx DIVXU.B Rs,Rd Mnemonic Rn 2 2 2 2 2 2 2 2 4 4 2 2 21 1 ERd32/Rs16ERd32 (Ed: remainder, -- -- [8] [7] -- -- -- -- -- -- 0 -- -- 0 0-Rd16Rd16 0-ERd32ERd32 0(<bit 15 to 8> of Rd16) 0(<bit 31 to 16> of ERd32) -- [4] ERd32-#xx:32 -- [4] -- [3] Rd16-Rs16 -- -- [3] Rd16-#xx:16 0-Rd8Rd8 -- Rd8-Rs8 ERd32-ERs32 -- Rd8-#xx:8 Rd: quotient) (signed division) RdL: quotient) (signed division) 0 -- 0 -- 13 Rd16/Rs8Rd16 (RdH: remainder, -- -- [8] [7] -- -- 1 1 1 1 1 1 3 1 2 1 20 Rd: quotient) (unsigned division) RdL: quotient) (unsigned division) ERd32/Rs16ERd32 (Ed: remainder, -- -- [6] [7] -- -- Advanced 12 I H N Z V C No. of States*1 Rd16/Rs8Rd16 (RdH: remainder, -- -- [6] [7] -- -- Operation Condition Code Page 794 of 1126 -- @@aa @(d,PC) @aa @-ERn/@ERn+ @(d,ERn) @ERn Addressing Mode/ Instruction Length (Bytes) Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 2 2 2 -- -- L L L L MAC @ERn+, @ERm+ CLRMAC LDMAC ERs,MACH LDMAC ERs,MACL STMAC MACH,ERd STMAC MACL,ERd MAC CLRMAC LDMAC STMAC 2 B TAS @ERd*2 TAS 2 2 L Operand Size EXTS.L ERd #xx W Rn EXTS.W Rd EXTS @ERn 4 @-ERn/@ERn+ 4 -- 2 MACLERd MACHERd ERsMACL ERsMACH 0MACH, MACL @ERn+2ERn, ERm+2ERm (signal multiplication) @ERnx@ERm+MACMAC (<bit 7> of @ERd) @ERd-0CCR set, (1) (<bit 31 to 16> of ERd32) (<bit 15> of ERd32) (<bit 15 to 8> of Rd16) (<bit 7> of Rd16) Operation 1 4 4 0 -- 0 -- -- ---- -- -- -- -- -- -- 1 [12] 1 [12] 2 [12] -- -- ---- -- -- -- -- -- 2 [12] 2 [12] -- ---- -- -- -- [11] [11] [11] -- ---- -- -- -- -- -- -- -- 1 0 -- -- -- Advanced I H N Z V C Mnemonic No. of States*1 Condition Code Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 @@aa @(d,PC) @aa @(d,ERn) Addressing Mode/ Instruction Length (Bytes) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 795 of 1126 NOT XOR OR AND L W L NOT.W Rd NOT.L ERd B XOR.L ERs,ERd NOT.B Rd L 6 XOR.L #xx:32,ERd W 4 W XOR.W Rs,Rd XOR.W #xx:16,Rd OR.L ERs,ERd B L 6 L OR.L #xx:32,ERd XOR.B Rs,Rd W OR.W Rs,Rd B 2 W 4 OR.W #xx:16,Rd XOR.B #xx:8,Rd B 2 AND.L ERs,ERd B L AND.L #xx:32,ERd OR.B Rs,Rd L 6 AND.W Rs,Rd OR.B #xx:8,Rd W 4 W AND.W #xx:16,Rd B AND.B Rs,Rd Operand Size B 2 Mnemonic #xx AND.B #xx:8,Rd Rn 2 2 2 4 2 2 4 2 2 4 2 2 @@aa -- @(d,PC) @aa @-ERn/@ERn+ @(d,ERn) @ERn Addressing Mode/ Instruction Length (Bytes) -- -- Rd16Rs16Rd16 -- -- -- -- -- -- -- -- -- -- -- -- -- -- Rd16#xx:16Rd16 Rd16Rs16Rd16 ERd32#xx:32ERd32 ERd32ERs32ERd32 Rd8Rd8 Rd16Rd16 ERd32ERd32 -- -- -- -- Rd16#xx:16Rd16 -- -- -- -- Rd8Rs8Rd8 Rd8#xx:8Rd8 -- -- Rd8#xx:8Rd8 Rd8Rs8Rd8 -- -- ERd32ERs32ERd32 -- -- -- -- ERd32#xx:32ERd32 -- -- -- -- Rd16Rs16Rd16 ERd32ERs32ERd32 -- -- Rd16#xx:16Rd16 ERd32#xx:32ERd32 -- -- Rd8Rs8Rd8 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 0 -- 1 1 1 2 3 1 2 1 1 2 3 1 2 1 1 2 3 1 2 1 1 Advanced 0 -- I H N Z V C -- -- Operation Rd8#xx:8Rd8 No. of States*1 Condition Code Page 796 of 1126 (3) Logical Instructions Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 SHLL SHAR SHAL B W W L L SHLL.W Rd SHLL.W #2,Rd SHLL.L ERd SHLL.L #2,ERd L SHAR.L #2,ERd SHLL.B #2,Rd L SHAR.L ERd B W SHAR.W #2,Rd SHLL.B Rd W L SHAL.L #2,ERd SHAR.W Rd L SHAL.L ERd B W SHAL.W #2,Rd B W SHAL.W Rd SHAR.B #2,Rd B SHAL.B #2,Rd SHAR.B Rd B Mnemonic Operand Size SHAL.B Rd Rn 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 -- @@aa @(d,PC) @aa @(d,ERn) @-ERn/@ERn+ @ERn #xx Addressing Mode/ Instruction Length (Bytes) C C MSB MSB MSB Operation LSB LSB LSB C 0 0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0 0 0 0 0 0 0 0 0 0 0 0 I H N Z V C Condition Code Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 (4) Shift Instructions 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Advanced No. of States*1 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 797 of 1126 ROTXR ROTXL SHLR B W W L L ROTXR.W Rd ROTXR.W #2,Rd ROTXR.L ERd ROTXR.L #2,ERd L ROTXL.L #2,ERd B L ROTXL.L ERd ROTXR.B #2,Rd W ROTXR.B Rd W ROTXL.W #2,Rd L SHLR.L #2,ERd ROTXL.W Rd L SHLR.L ERd B W SHLR.W #2,Rd ROTXL.B #2,Rd W SHLR.W Rd B B ROTXL.B Rd B SHLR.B #2,Rd Operand Size SHLR.B Rd Mnemonic Rn 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 C LSB C -- -- -- -- -- -- -- MSB -- -- -- -- -- -- -- -- C -- -- -- LSB -- -- -- -- -- -- -- -- -- -- -- -- -- -- LSB -- -- -- MSB -- -- 0 -- -- -- -- 0 -- -- -- 0 -- -- 0 --0 MSB -- -- 0 -- -- -- 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 I H N Z V C -- Operation Condition Code Page 798 of 1126 -- @@aa @(d,PC) @aa @(d,ERn) @-ERn/@ERn+ @ERn #xx Addressing Mode/ Instruction Length (Bytes) 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Advanced No. of States*1 Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 ROTR ROTL W W L L ROTR.W #2,Rd ROTR.L ERd ROTR.L #2,ERd L ROTL.L #2,ERd ROTR.W Rd L ROTL.L ERd B W ROTL.W #2,Rd ROTR.B #2,Rd W ROTL.W Rd B B ROTR.B Rd B ROTL.B #2,Rd Operand Size ROTL.B Rd Rn 2 2 2 2 2 2 2 2 2 2 2 2 MSB C -- -- -- -- -- -- -- -- 1 -- -- -- -- -- -- -- -- -- -- -- LSB LSB -- -- -- -- -- -- -- -- 0 0 0 0 0 0 0 0 0 0 0 0 I H N Z V C -- MSB C Operation Mnemonic Condition Code Jun 10, 2010 -- @@aa @(d,PC) @aa @-ERn/@ERn+ @(d,ERn) @ERn #xx Addressing Mode/ Instruction Length (Bytes) 1 1 1 1 1 1 1 1 1 1 1 1 Advanced No. of States*1 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 799 of 1126 Page 800 of 1126 BCLR BSET B B B B BCLR #xx:3,Rd BCLR #xx:3,@ERd BCLR #xx:3,@aa:8 BCLR #xx:3,@aa:16 B B BSET Rn,@aa:32 BCLR Rn,@aa:16 B BSET Rn,@aa:16 B B BSET Rn,@aa:8 BCLR Rn,@aa:8 B BSET Rn,@ERd B B BSET Rn,Rd BCLR Rn,@ERd B BSET #xx:3,@aa:32 B B BSET #xx:3,@aa:16 B B BSET #xx:3,@aa:8 BCLR Rn,Rd B BSET #xx:3,@ERd BCLR #xx:3,@aa:32 B Operand Size BSET #xx:3,Rd Mnemonic (5) Bit-Manipulation Instructions Rn 2 2 2 2 @ERn 4 4 4 4 @aa 6 4 8 6 4 8 6 4 8 6 4 -- @@aa @(d,PC) @-ERn/@ERn+ @(d,ERn) #xx Addressing Mode/ Instruction Length (Bytes) -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- (#xx:3 of @ERd)1 (#xx:3 of @aa:8)1 (#xx:3 of @aa:16)1 (#xx:3 of @aa:32)1 (Rn8 of Rd8)1 (Rn8 of @ERd)1 (Rn8 of @aa:8)1 (Rn8 of @aa:16)1 (Rn8 of @aa:32)1 (#xx:3 of Rd8)0 (#xx:3 of @ERd)0 (#xx:3 of @aa:8)0 (#xx:3 of @aa:16)0 (#xx:3 of @aa:32)0 (Rn8 of Rd8)0 (Rn8 of @ERd)0 (Rn8 of @aa:8)0 (Rn8 of @aa:16)0 I H N Z V C -- -- -- -- -- -- (#xx:3 of Rd8)1 Operation Condition Code 5 4 4 1 6 5 4 4 1 6 5 4 4 1 6 5 4 4 1 Advanced No. of States*1 Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 B B B B B B B B B B B B B B B BCLR Rn,@aa:32 BNOT #xx:3,Rd BNOT #xx:3,@ERd BNOT #xx:3,@aa:8 BNOT #xx:3,@aa:16 BNOT #xx:3,@aa:32 BNOT Rn,Rd BNOT Rn,@ERd BNOT Rn,@aa:8 BNOT Rn,@aa:16 BNOT Rn,@aa:32 BTST #xx:3,Rd BTST #xx:3,@ERd BTST #xx:3,@aa:8 BTST #xx:3,@aa:16 BCLR BNOT BTST Operand Size Mnemonic Rn 2 2 2 @ERn 4 4 4 @aa 6 4 8 6 4 8 6 4 8 1 4 4 5 6 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- (#xx:3 of Rd8)Z (#xx:3 of @ERd)Z (#xx:3 of @aa:8)Z (#xx:3 of @aa:16)Z [ (Rn8 of @aa:32)] (Rn8 of @aa:32) -- -- -- -- -- -- 4 3 3 1 6 -- -- -- -- -- -- [ (Rn8 of @aa:16)] -- -- 5 (Rn8 of @aa:8)[ (Rn8 of @aa:8)] -- -- -- -- -- -- (Rn8 of @aa:16) 4 4 (Rn8 of @ERd)[ (Rn8 of @ERd)] -- -- -- -- -- -- (Rn8 of Rd8)[ (Rn8 of Rd8)] [ (#xx:3 of @aa:32)] (#xx:3 of @aa:32) [ (#xx:3 of @aa:16)] (#xx:3 of @aa:16) [ (#xx:3 of @aa:8)] (#xx:3 of @aa:8) [ (#xx:3 of @ERd)] (#xx:3 of @ERd) -- -- -- -- -- -- 6 -- -- -- -- -- -- Advanced I H N Z V C (#xx:3 of Rd8)[ (#xx:3 of Rd8)] -- -- -- -- -- -- (Rn8 of @aa:32)0 Operation No. of States*1 Condition Code -- @@aa @(d,PC) @(d,ERn) @-ERn/@ERn+ #xx Addressing Mode/ Instruction Length (Bytes) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 801 of 1126 BST BILD BLD BTST B B B B B B B B B B B B B B B B B B B BTST Rn,Rd BTST Rn,@ERd BTST Rn,@aa:8 BTST Rn,@aa:16 BTST Rn,@aa:32 BLD #xx:3,Rd BLD #xx:3,@ERd BLD #xx:3,@aa:8 BLD #xx:3,@aa:16 BLD #xx:3,@aa:32 BILD #xx:3,Rd BILD #xx:3,@ERd BILD #xx:3,@aa:8 BILD #xx:3,@aa:16 BILD #xx:3,@aa:32 BST #xx:3,Rd BST #xx:3,@ERd BST #xx:3,@aa:8 Operand Size BTST #xx:3,@aa:32 Mnemonic Rn 2 2 2 2 @ERn 4 4 4 4 @aa 4 8 6 4 8 6 4 8 6 4 8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- (Rn8 of @ERd)Z (Rn8 of @aa:8)Z (Rn8 of @aa:16)Z (Rn8 of @aa:32)Z (#xx:3 of Rd8)C (#xx:3 of @ERd)C (#xx:3 of @aa:8)C (#xx:3 of @aa:16)C (#xx:3 of @aa:32)C (#xx:3 of Rd8)C (#xx:3 of @ERd)C (#xx:3 of @aa:8)C (#xx:3 of @aa:16)C (#xx:3 of @aa:32)C C(#xx:3 of Rd8) C(#xx:3 of @ERd) C(#xx:3 of @aa:8) -- -- -- -- -- -- -- -- -- -- -- -- -- (Rn8 of Rd8)Z -- -- I H N Z V C (#xx:3 of @aa:32)Z Operation Condition Code Page 802 of 1126 -- @@aa @(d,PC) @-ERn/@ERn+ @(d,ERn) #xx Addressing Mode/ Instruction Length (Bytes) 4 4 1 5 4 3 3 1 5 4 3 3 1 5 4 3 3 1 5 Advanced No. of States*1 Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 BOR BIAND BAND BIST BST B B B B BIAND #xx:3,@aa:16 BIAND #xx:3,@aa:32 BOR #xx:3,Rd BOR #xx:3,@ERd B BAND #xx:3,@aa:16 B B BAND #xx:3,@aa:8 BIAND #xx:3,@aa:8 B BAND #xx:3,@ERd B B BAND #xx:3,Rd BIAND #xx:3,@ERd B BIST #xx:3,@aa:32 B B BIST #xx:3,@aa:16 B B BIST #xx:3,@aa:8 BIAND #xx:3,Rd B BIST #xx:3,@ERd BAND #xx:3,@aa:32 B B BIST #xx:3,Rd B BST #xx:3,@aa:32 Operand Size BST #xx:3,@aa:16 Mnemonic Rn 2 2 2 2 @ERn 4 4 4 4 @aa 8 6 4 8 6 4 8 6 4 8 6 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- C(#xx:3 of @aa:16)C C(#xx:3 of @aa:32)C C[ (#xx:3 of Rd8)]C C[ (#xx:3 of @ERd)]C C[ (#xx:3 of @aa:8)]C C[ (#xx:3 of @aa:16)]C C[ (#xx:3 of @aa:32)]C C(#xx:3 of Rd8)C C(#xx:3 of @ERd)C -- -- -- -- -- -- C(#xx:3 of @aa:32) -- -- -- -- -- -- -- -- -- -- -- C(#xx:3 of @aa:16) C(#xx:3 of @aa:8)C 1 -- -- -- -- -- -- C(#xx:3 of @aa:8) -- -- -- -- -- -- -- -- -- -- -- C(#xx:3 of @ERd) -- -- -- -- -- -- -- -- -- -- -- C(#xx:3 of Rd8) C(#xx:3 of @ERd)C -- -- -- -- -- -- C(#xx:3 of @aa:32) C(#xx:3 of Rd8)C 6 -- -- -- -- -- -- C(#xx:3 of @aa:16) 3 1 5 4 3 3 1 5 4 3 3 5 4 4 1 6 5 I H N Z V C Advanced No. of States*1 Operation Condition Code -- @@aa @(d,PC) @(d,ERn) @-ERn/@ERn+ #xx Addressing Mode/ Instruction Length (Bytes) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 803 of 1126 Page 804 of 1126 BIXOR BXOR BIOR BOR B B B B B B B B B B B B B B BIOR #xx:3,@ERd BIOR #xx:3,@aa:8 BIOR #xx:3,@aa:16 BIOR #xx:3,@aa:32 BXOR #xx:3,Rd BXOR #xx:3,@ERd BXOR #xx:3,@aa:8 BXOR #xx:3,@aa:16 BXOR #xx:3,@aa:32 BIXOR #xx:3,Rd BIXOR #xx:3,@ERd BIXOR #xx:3,@aa:8 BIXOR #xx:3,@aa:16 BIXOR #xx:3,@aa:32 B BOR #xx:3,@aa:32 B B BOR #xx:3,@aa:16 BIOR #xx:3,Rd B Operand Size BOR #xx:3,@aa:8 Mnemonic Rn 2 2 2 @ERn 4 4 4 @aa 8 6 4 8 6 4 8 6 4 8 6 4 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- C(#xx:3 of @aa:16)C C(#xx:3 of @aa:32)C C[ (#xx:3 of Rd8)]C C[ (#xx:3 of @ERd)]C C[ (#xx:3 of @aa:8)]C C[ (#xx:3 of @aa:16)]C C[ (#xx:3 of @aa:32)]C C(#xx:3 of Rd8)C C(#xx:3 of @ERd)C C(#xx:3 of @aa:8)C C(#xx:3 of @aa:16)C C(#xx:3 of @aa:32)C C[ (#xx:3 of Rd8)]C C[ (#xx:3 of @ERd)]C C[ (#xx:3 of @aa:8)]C C[ (#xx:3 of @aa:16)]C C[ (#xx:3 of @aa:32)]C I H N Z V C -- -- -- -- -- C(#xx:3 of @aa:8)C Operation Condition Code -- @@aa @(d,PC) @(d,ERn) @-ERn/@ERn+ #xx Addressing Mode/ Instruction Length (Bytes) 5 4 3 3 1 5 4 3 3 1 5 4 3 3 1 5 4 3 Advanced No. of States*1 Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 Bcc -- -- -- BEQ d:16 BVC d:8 BVC d:16 -- BEQ d:8 -- BCS d:8(BLO d:8) -- -- BCC d:16(BHS d:16) BNE d:16 -- BCC d:B(BHS d:8) -- -- BLS d:16 -- -- BLS d:8 BNE d:8 -- BHI d:16 BCS d:16(BLO d:16) -- -- BRN d:8(BF d:8) -- -- BHI d:8 -- BRA d:16(BT d:16) BRN d:16(BF d:16) Operand Size BRA d:8(BT d:8) @(d,PC) 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 @@aa @aa @-ERn/@ERn+ @(d,ERn) @ERn Rn #xx Addressing Mode/ Instruction Length (Bytes) -- Jun 10, 2010 Mnemonic (6) Branch Instructions Branching Condition else next; PCPC+d V=0 Z=1 Z=0 C=1 C=0 CZ=1 CZ=0 Never if condition is true then Always Operation 2 3 -- -- -- -- -- -- 3 -- -- -- -- -- -- -- -- -- -- -- -- 2 -- -- -- -- -- -- 2 3 -- -- -- -- -- -- 3 -- -- -- -- -- -- -- -- -- -- -- -- 2 -- -- -- -- -- -- 2 3 -- -- -- -- -- -- 3 -- -- -- -- -- -- -- -- -- -- -- -- 2 -- -- -- -- -- -- 2 3 -- -- -- -- -- -- 3 -- -- -- -- -- -- -- -- -- -- -- -- 2 -- -- -- -- -- -- 2 3 -- -- -- -- -- -- Advanced No. of States*1 -- -- -- -- -- -- I H N Z V C Condition Code H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 805 of 1126 Bcc Page 806 of 1126 -- -- -- -- -- -- BLT d:16 BGT d:8 BGT d:16 BLE d:8 BLE d:16 BGE d:8 -- -- BMI d:16 BLT d:8 -- BMI d:8 BGE d:16 -- -- BPL d:16 -- -- BPL d:8 -- BVS d:8 BVS d:16 Operand Size Mnemonic @(d,PC) 4 2 4 2 4 2 4 2 4 2 4 2 4 2 -- @@aa @aa @-ERn/@ERn+ @(d,ERn) @ERn Rn #xx Addressing Mode/ Instruction Length (Bytes) Branching Condition else next; PCPC+d 2 3 2 3 2 3 -- -- -- -- -- -- Z(NV)=0 -- -- -- -- -- -- -- -- -- -- -- -- Z(NV)=1 -- -- -- -- -- -- -- -- -- -- -- -- 2 3 -- -- -- -- -- -- -- -- -- -- -- -- 2 3 -- -- -- -- -- -- -- -- -- -- -- -- 2 3 -- -- -- -- -- -- 3 -- -- -- -- -- -- -- -- -- -- -- -- 2 Advanced No. of States*1 -- -- -- -- -- -- I H N Z V C Condition Code -- -- -- -- -- -- NV=1 NV=0 N=1 N=0 if condition is true then V=1 Operation Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 RTS JSR BSR JMP -- JSR @@aa:8 -- -- JSR @aa:24 RTS -- JSR @ERn -- -- JMP @@aa:8 BSR d:16 -- JMP @aa:24 -- -- JMP @ERn BSR d:8 Operand Size Mnemonic @ERn 2 2 @aa 4 4 @(d,PC) 4 2 @@aa 2 2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- PC@aa:8 PC@-SP,PCPC+d:8 PC@-SP,PCPC+d:16 PC@-SP,PCERn PC@-SP,PCaa:24 PC@-SP,PC@aa:8 -- -- -- -- -- -- -- -- -- -- -- -- PCaa:24 I H N Z V C Condition Code PCERn Operation 2 PC@SP+ -- @(d,ERn) @-ERn/@ERn+ Rn #xx Addressing Mode/ Instruction Length (Bytes) 5 6 5 4 5 4 5 3 2 Advanced No. of States*1 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 807 of 1126 B B W W W W W W W W W LDC Rs,CCR LDC Rs,EXR LDC @ERs,CCR LDC @ERs,EXR LDC @(d:16,ERs),CCR LDC @(d:16,ERs),EXR LDC @(d:32,ERs),CCR LDC @(d:32,ERs),EXR LDC @ERs+,CCR LDC @ERs+,EXR LDC @aa:16,CCR W B 4 LDC #xx:8,EXR LDC @aa:32,EXR B 2 LDC #xx:8,CCR LDC W -- SLEEP SLEEP W -- RTE RTE LDC @aa:32,CCR -- TRAPA #xx:2 TRAPA LDC @aa:16,EXR Operand Size Mnemonic 2 4 4 Rn @ERn 2 @(d,ERn) 10 10 6 6 @-ERn/@ERn+ 4 4 @aa 8 8 6 6 8 [9] 1 -- -- -- -- -- 4 6 6 4 4 -- -- -- -- -- -- -- -- -- -- -- -- @(d:16,ERs)EXR @(d:32,ERs)CCR 5 @aa:32CCR -- -- -- -- -- -- 4 5 -- -- -- -- -- -- @aa:16EXR @aa:32EXR 4 @ERsEXR,ERs32+2ERs32 @aa:16CCR @ERsCCR,ERs32+2ERs32 @(d:32,ERs)EXR 4 -- -- -- -- -- -- @(d:16,ERs)CCR 3 -- -- -- -- -- -- @ERsEXR 1 3 Rs8EXR @ERsCCR 1 -- -- -- -- -- -- Rs8CCR 2 -- -- -- -- -- -- #xx:8EXR 2 1 -- -- -- -- -- -- 5 [9] Advanced I H N Z V C No. of States*1 #xx:8CCR Transition to power-down state PC@SP+ EXR@SP+,CCR@SP+, EXR@-SP,<vector>PC PC@-SP,CCR@-SP, Operation Condition Code -- @@aa @(d,PC) #xx Addressing Mode/ Instruction Length (Bytes) (7) System Control Instructions Page 808 of 1126 Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 NOP XORC ORC ANDC STC B B W W W W W W W W W W W W B 2 B 4 B 2 B 4 B 2 B 4 -- STC CCR,@ERd STC EXR,@ERd STC CCR,@(d:16,ERd) STC EXR,@(d:16,ERd) STC CCR,@(d:32,ERd) STC EXR,@(d:32,ERd) STC CCR,@-ERd STC EXR,@-ERd STC CCR,@aa:16 STC EXR,@aa:16 STC CCR,@aa:32 STC EXR,@aa:32 ANDC #xx:8,CCR ANDC #xx:8,EXR ORC #xx:8,CCR ORC #xx:8,EXR XORC #xx:8,CCR XORC #xx:8,EXR NOP Operand Size STC EXR,Rd #xx STC CCR,Rd Rn 2 2 @ERn 4 4 10 10 6 4 4 @(d,ERn) @-ERn/@ERn+ 6 @aa 8 8 6 6 -- 2 PCPC+2 -- -- -- -- -- -- -- -- -- -- -- -- EXR#xx:8EXR 1 2 2 1 CCR#xx:8CCR 1 -- -- -- -- -- -- CCR#xx:8CCR EXR#xx:8EXR 2 5 -- -- -- -- -- -- EXR@aa:32 -- -- -- -- -- -- 5 -- -- -- -- -- -- CCR@aa:32 EXR#xx:8EXR 4 1 4 -- -- -- -- -- -- EXR@aa:16 CCR#xx:8CCR 4 -- -- -- -- -- -- EXR@(d:32,ERd) -- -- -- -- -- -- 6 -- -- -- -- -- -- CCR@(d:32,ERd) CCR@aa:16 4 6 -- -- -- -- -- -- EXR@(d:16,ERd) 4 4 -- -- -- -- -- -- CCR@(d:16,ERd) -- -- -- -- -- -- 3 -- -- -- -- -- -- EXR@ERd ERd32-2ERd32,EXR@ERd 3 -- -- -- -- -- -- CCR@ERd ERd32-2ERd32,CCR@ERd -- -- -- -- -- -- 1 1 -- -- -- -- -- -- -- -- -- -- -- -- EXRRd8 Advanced I H N Z V C No. of States*1 CCRRd8 Operation Mnemonic Condition Code @@aa @(d,PC) Addressing Mode/ Instruction Length (Bytes) Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 809 of 1126 Page 810 of 1126 Notes: 1. 2. 3. [1] [2] [3] [4] [5] [6] [7] [8] [9] EEPMOV -- -- Mnemonic EEPMOV.W @@aa @(d,PC) @aa @-ERn/@ERn+ @(d,ERn) @ERn Rn #xx Addressing Mode/ Instruction Length (Bytes) -- -- -- -- -- -- 4 if R40 Repeat @ER5@ER6 ER5+1ER5 ER6+1ER6 R4-1R4 Until R4=0 else next; I H N Z V C -- -- -- -- -- -- Operation Condition Code 4 if R4L0 Repeat @ER5@ER6 ER5+1ER5 ER6+1ER6 R4L-1R4L Until R4L=0 else next; -- 4+2n*3 4+2n*3 Advanced No. of States*1 The number of states is the number of states required for execution when the instruction and its operands are located in on-chip memory. Only register ER0, ER1, ER4, or ER5 should be used when using the TAS instruction. n is the initial value of R4L or R4. Seven states for saving or restoring two registers, nine states for three registers, or eleven states for four registers. Cannot be used in this LSI. Set to 1 when a carry or borrow occurs at bit 11; otherwise cleared to 0. Set to 1 when a carry or borrow occurs at bit 27; otherwise cleared to 0. Retains its previous value when the result is zero; otherwise cleared to 0. Set to 1 when the divisor is negative; otherwise cleared to 0. Set to 1 when the divisor is zero; otherwise cleared to 0. Set to 1 when the quotient is negative; otherwise cleared to 0. One additional state is required for execution when EXR is valid. Operand Size EEPMOV.B (8) Block Transfer Instructions Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM A.2 Appendix A Instruction Set Instruction Codes Table A.2 shows the instruction codes. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 811 of 1126 Page 812 of 1126 Bcc BAND ANDC AND ADDX B W L L B B B B B B B -- -- -- -- AND.W Rs,Rd AND.L #xx:32,ERd AND.L ERs,ERd ANDC #xx:8,CCR ANDC #xx:8,EXR BAND #xx:3,Rd BAND #xx:3,@ERd BAND #xx:3,@aa:8 BAND #xx:3,@aa:16 BAND #xx:3,@aa:32 BRA d:8 (BT d:8) BRA d:16 (BT d:16) BRN d:8 (BF d:8) BRN d:16 (BF d:16) B AND.B #xx:8,Rd W B ADDX Rs,Rd AND.W #xx:16,Rd B ADDX #xx:8,Rd AND.B Rs,Rd L ADDS #4,ERd ADD.L ERs,ERd L L ADD.L #xx:32,ERd L L ADD.W Rs,Rd ADDS #2,ERd W ADD.W #xx:16,Rd ADDS #1,ERd B W ADD.B Rs,Rd B Size ADD.B #xx:8,Rd Mnemonic 0 8 9 A A B B B rd 7 0 0 0 0 9 rs 6 F 4 0 IMM 0 erd 1 3 6 A 1 6 1 6 C E A A 0 8 1 8 6 7 0 0 0 7 7 7 6 6 4 5 4 5 1 0 6 9 7 rd rd rd disp disp abs 0 0 0 0 0 rd 1 0 0 erd IMM rs 6 1 rd 0 erd 0 erd IMM E rd 0 rd 0 erd IMM E rs 1 1 ers 0 erd 0 erd rs 9 0 rd 1 9 7 rd rs 8 0 IMM rd 2nd byte 8 1st byte IMM IMM 0 IMM 6 disp disp abs 0 IMM 6 IMM 0 0 abs 0 ers 0 erd 7 6 6 IMM IMM 4th byte 7 0 6 3rd byte 7 6 0 IMM 0 6th byte Instruction Format 5th byte 7 6 7th byte 0 IMM 0 8th byte 9th byte 10th byte Table A.2 ADDS ADD Instruction Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Instruction Codes REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Bcc Instruction -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- BHI d:16 BLS d:8 BLS d:16 BCC d:8 (BHS d:8) BCC d:16 (BHS d:16) BCS d:8 (BLO d:8) BCS d:16 (BLO d:16) BNE d:8 BNE d:16 BEQ d:8 BEQ d:16 BVC d:8 BVC d:16 BVS d:8 BVS d:16 BPL d:8 BPL d:16 BMI d:8 BMI d:16 BGE d:8 BGE d:16 BLT d:8 BLT d:16 BGT d:8 BGT d:16 BLE d:8 BLE d:16 Size BHI d:8 Mnemonic Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 8 F 8 E 8 D 8 C 8 B 8 A 8 9 8 8 8 7 8 6 8 5 8 4 8 3 8 2 1st byte F E D C B A 9 8 7 6 5 4 3 2 disp disp disp disp disp disp disp disp disp disp disp disp disp disp 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2nd byte 3rd byte disp disp disp disp disp disp disp disp disp disp disp disp disp disp 4th byte 6th byte Instruction Format 5th byte 7th byte 8th byte 9th byte 10th byte H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 813 of 1126 Page 814 of 1126 BIOR BILD BIAND BCLR Instruction 6 6 6 7 7 6 6 7 7 7 6 6 7 7 7 6 6 7 7 7 6 6 B B B B B B B B B B B B B B B B B B B B B B BCLR #xx:3,@aa:16 BCLR #xx:3,@aa:32 BCLR Rn,Rd BCLR Rn,@ERd BCLR Rn,@aa:8 BCLR Rn,@aa:16 BCLR Rn,@aa:32 BIAND #xx:3,Rd BIAND #xx:3,@ERd BIAND #xx:3,@aa:8 BIAND #xx:3,@aa:16 BIAND #xx:3,@aa:32 BILD #xx:3,Rd BILD #xx:3,@ERd BILD #xx:3,@aa:8 BILD #xx:3,@aa:16 BILD #xx:3,@aa:32 BIOR #xx:3,Rd BIOR #xx:3,@ERd BIOR #xx:3,@aa:8 BIOR #xx:3,@aa:16 BIOR #xx:3,@aa:32 0 erd D 0 erd C 0 erd C 0 erd C 0 0 1 3 A 0 A abs 1 IMM 4 E 0 3 A rd 0 1 0 A abs 1 IMM 7 E 0 3 A rd 0 1 0 A abs 1 IMM 6 E 8 3 A rd 8 1 A 0 rd rn 2 abs 8 3 A F 8 0 1 abs A F 0 erd 7 B BCLR #xx:3,@aa:8 D 7 B BCLR #xx:3,@ERd rd 0 IMM 2 7 2nd byte 1st byte B Size BCLR #xx:3,Rd Mnemonic 0 IMM 2 1 IMM 6 1 IMM 7 7 1 IMM 4 7 abs 1 IMM 4 7 abs 1 IMM 7 7 abs 1 IMM 6 7 0 0 0 0 0 0 0 rn 2 7 0 rn 2 6 0 0 6 abs abs 0 IMM 2 7 4th byte 7 3rd byte abs abs abs abs abs 7 7 7 6 7 4 7 6 2 2 1 IMM 1 IMM 1 IMM rn 0 IMM 0 0 0 0 0 6th byte Instruction Format 5th byte 7 7 7 6 7 4 7 6 2 2 7th byte 1 IMM 1 IMM 1 IMM rn 0 IMM 0 0 0 0 0 8th byte 9th byte 10th byte Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 BNOT BLD BIXOR BIST Instruction 6 7 7 6 6 7 7 7 6 6 7 7 7 6 6 7 7 7 6 6 6 7 7 6 6 B B B B B B B B B B B B B B B B B B B B B B B B BIST #xx:3,@ERd BIST #xx:3,@aa:8 BIST #xx:3,@aa:16 BIST #xx:3,@aa:32 BIXOR #xx:3,Rd BIXOR #xx:3,@ERd BIXOR #xx:3,@aa:8 BIXOR #xx:3,@aa:16 BIXOR #xx:3,@aa:32 BLD #xx:3,Rd BLD #xx:3,@ERd BLD #xx:3,@aa:8 BLD #xx:3,@aa:16 BLD #xx:3,@aa:32 BNOT #xx:3,Rd BNOT #xx:3,@ERd BNOT #xx:3,@aa:8 BNOT #xx:3,@aa:16 BNOT #xx:3,@aa:32 BNOT Rn,Rd BNOT Rn,@ERd BNOT Rn,@aa:8 BNOT Rn,@aa:16 BNOT Rn,@aa:32 A A F D 1 A A F D 1 A A E C 7 A A E C 5 A A F D 7 1st byte B Size BIST #xx:3,Rd Mnemonic rd rn 8 8 1 3 abs 0 8 3 0 erd 8 0 1 abs 0 erd rd 0 3 0 IMM 0 0 1 abs 0 erd rd 0 3 0 IMM 0 0 1 abs 0 erd rd 8 3 1 IMM 8 0 rd 1 abs 0 erd 1 IMM 2nd byte 1 IMM 7 1 IMM 5 7 0 IMM 7 7 0 IMM 1 7 rn rn 1 1 6 6 abs abs 0 IMM 1 7 abs 0 IMM 7 7 abs 1 IMM 5 7 abs 1 IMM 7 6 0 0 0 0 0 0 0 0 0 0 4th byte 6 3rd byte abs abs abs abs abs 6 7 7 7 6 1 1 7 5 7 rn 0 IMM 0 IMM 1 IMM 1 IMM 0 0 0 0 0 6th byte Instruction Format 5th byte 6 7 7 7 6 1 1 7 5 7 7th byte rn 0 IMM 0 IMM 1 IMM 1 IMM 0 0 0 0 0 8th byte 9th byte 10th byte H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 815 of 1126 Page 816 of 1126 BTST BST BSR BSET BOR Instruction B B B B B B B B B -- -- B B B B B B B B B B B B BSET #xx:3,@aa:16 BSET #xx:3,@aa:32 BSET Rn,Rd BSET Rn,@ERd BSET Rn,@aa:8 BSET Rn,@aa:16 BSET Rn,@aa:32 BSR d:8 BSR d:16 BST #xx:3,Rd BST #xx:3,@ERd BST #xx:3,@aa:8 BST #xx:3,@aa:16 BST #xx:3,@aa:32 BTST #xx:3,Rd BTST #xx:3,@ERd BTST #xx:3,@aa:8 BTST #xx:3,@aa:16 BTST #xx:3,@aa:32 BTST Rn,Rd BTST Rn,@ERd B BOR #xx:3,@aa:32 BSET #xx:3,@aa:8 B BOR #xx:3,@aa:16 BSET #xx:3,@ERd B BOR #xx:3,@aa:8 B B BOR #xx:3,@ERd BSET #xx:3,Rd B Size BOR #xx:3,Rd Mnemonic 0 7 6 6 6 7 7 7 6 6 7 7 6 5 5 6 6 7 7 6 6 6 7 7 7 6 6 rd 0 0 IMM 0 erd 0 D 0 erd D D 0 0 erd C rd 3 rn 0 erd A 3 C 0 0 1 0 0 A abs 0 IMM 3 E 8 3 A rd 8 1 0 rd A abs 0 erd 7 F 0 0 IMM C disp 8 3 A 5 8 1 A 0 rd rn 0 abs 8 3 A F 8 1 A abs 0 3 A F 0 1 A abs 0 erd C 7 7 E rd 0 IMM 4 7 2nd byte 1st byte 6 7 7 6 3 3 3 7 7 0 6 0 6 0 6 0 7 4 7 7 4 7 3rd byte rn rn abs rn 0 IMM 0 IMM abs 0 IMM 0 IMM disp abs abs 0 IMM 0 IMM abs 0 IMM 0 IMM 0 0 0 0 0 0 0 0 0 0 0 4th byte abs abs abs abs abs 7 6 6 7 7 3 7 0 0 4 0 IMM 0 IMM rn 0 IMM 0 IMM 0 0 0 0 0 6th byte Instruction Format 5th byte 7 6 6 7 7 3 7 0 0 4 7th byte 0 IMM 0 IMM rn 0 IMM 0 IMM 0 0 0 0 0 8th byte 9th byte 10th byte Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 6 6 7 7 7 6 6 0 A 1 7 1 7 1 0 1 B B B B B B B -- B B W W L L B B BTST Rn,@aa:16 BTST Rn,@aa:32 Jun 10, 2010 BXOR #xx:3,Rd BXOR #xx:3,@ERd BXOR #xx:3,@aa:8 BXOR #xx:3,@aa:16 BXOR #xx:3,@aa:32 CLRMAC CLRMAC CMP.B #xx:8,Rd CMP.B Rs,Rd CMP.W #xx:16,Rd CMP.W Rs,Rd CMP.L #xx:32,ERd CMP.L ERs,ERd CMP REJ09B0257-0700 Rev. 7.00 0 5 5 7 7 W B W -- -- DIVXU.B Rs,Rd DIVXU.W Rs,ERd EEPMOV EEPMOV.B EEPMOV.W DEC.L #2,ERd DIVXU DIVXS DIVXS.W Rs,ERd DEC.L #1,ERd 0 DEC.W #2,Rd 1 1 L DEC.W #1,Rd L 1 W DEC.B Rd DEC B 1 W DAS Rd DAS DIVXS.B Rs,Rd 1 B DAA Rd DAA BXOR BTST rd 0 0 IMM 0 erd 5 C 0 A 1 rd 0 erd rs 2 D A rs 8 8 3 9 9 5 5 5 0 rd 0 erd C 4 rs rs 5 D 1 3 B B F F rd 0 erd rs 1 5 0 D 1 7 B 0 erd rd 0 erd D B IMM abs F rd 5 B IMM 0 0 D rd 0 A 0 IMM 5 7 abs 0 IMM 5 7 abs 1 rd 0 F abs 0 rn 3 6 4th byte 3rd byte B rd 0 F 1 ers 0 erd rd 2 9 F rd rs C IMM 0 3 A rd 0 1 A abs 0 3 E 0 1 A abs 2nd byte A E 1st byte 7 Size B Mnemonic BTST Rn,@aa:8 Instruction 7 6 5 3 0 IMM rn 0 0 6th byte Instruction Format 5th byte 7 6 5 3 7th byte 0 IMM rn 0 0 8th byte 9th byte 10th byte H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 817 of 1126 Page 818 of 1126 LDC JSR JMP INC EXTU EXTS Instruction W W W W W W W LDC @(d:16,ERs),EXR LDC @(d:32,ERs),CCR LDC @(d:32,ERs),EXR LDC @ERs+,CCR LDC @ERs+,EXR LDC @aa:16,CCR LDC @aa:16,EXR B LDC Rs,CCR W B LDC #xx:8,EXR LDC @(d:16,ERs),CCR B LDC #xx:8,CCR W -- JSR @@aa:8 LDC @ERs,EXR -- JSR @aa:24 B -- JSR @ERn W -- JMP @@aa:8 LDC @ERs,CCR -- JMP @aa:24 LDC Rs,EXR L INC.L #1,ERd -- L INC.W #2,Rd JMP @ERn W INC.W #1,Rd INC.L #2,ERd B W INC.B Rd L EXTU.L ERd L W EXTS.L ERd EXTU.W Rd W Size EXTS.W Rd Mnemonic 0 ers 0 ers 0 ers 0 ers 0 ers 0 ers 0 ers 0 ers 0 0 9 9 F F 8 8 D D B B 6 6 6 6 7 7 6 6 6 6 0 erd 1 rs rs 0 1 0 1 0 1 0 1 0 1 IMM 7 F 0 ern abs D 4 0 1 4 4 4 4 4 4 4 4 4 4 B B B 9 A B D E F 7 1 3 3 1 1 1 1 1 1 1 1 1 1 0 0 0 5 5 5 5 5 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ern 0 abs IMM rd 0 erd 5 B 0 7 rd 0 A 0 0 rd 7 7 1 abs rd 0 erd 5 7 1 abs 0 erd F 7 1 0 rd D 7 abs abs 0 0 0 0 B 6 0 disp B 6 0 disp 0 2 2 0 0 6th byte Instruction Format 5th byte 0 0 0 4th byte 1 3rd byte 2nd byte 1st byte 7th byte 8th byte disp disp 9th byte 10th byte Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 6 7 6 2 6 6 6 6 7 6 3 6 6 7 0 6 6 B B B B B B B B B B B B B W W W W MOV.B @(d:16,ERs),Rd MOV.B @(d:32,ERs),Rd MOV.B @ERs+,Rd MOV.B @aa:8,Rd MOV.B @aa:16,Rd MOV.B @aa:32,Rd MOV.B Rs,@ERd MOV.B Rs,@(d:16,ERd) MOV.B Rs,@(d:32,ERd) MOV.B Rs,@-ERd MOV.B Rs,@aa:8 MOV.B Rs,@aa :16 MOV.B Rs,@aa:32 MOV.W #xx:16,Rd MOV.W Rs,Rd MOV.W @ERs,Rd MOV.W @(d:16,ERs),Rd 7 6 B MOV.B @ERs,Rd W 0 B MOV.B Rs,Rd MOV.W @(d:32,ERs),Rd F 0 B 0 L -- LDMAC ERs,MACL MOV.B #xx:8,Rd 0 L LDMAC ERs,MACH MOV 0 L LDM.L @SP+, (ERn-ERn+3) MAC @ERn+,@ERm+ 0 L LDM.L @SP+, (ERn-ERn+2) 0 6 1 0 ers 0 ers E 8 C 1 erd 0 erd 1 erd E 8 C 8 0 ers 0 ers F 0 rd rd rd rs 0 ers rd 0 9 9 rs A A D rs 8 rs 0 rs A abs 1 erd 8 rs rd 2 A rs rd 0 rd 0 rd rd A abs 0 ers 8 rd rs 0 ers C rd 0 ers 3 3 6 6 6 B A A D 0 ers 2 3 6 6 0 3 1 IMM D 6 0 2 1 rd D 6 0 0 0 ern+3 0 ern+2 0 ern+1 disp IMM abs disp abs disp 2 A 2 rd rs rd abs abs 0 erm 0 erm 7 7 7 2 B D 6 1 1 1 0 L 4 1 0 W LDC @aa:32,EXR LDM.L @SP+, (ERn-ERn+1) 0 2 B 6 0 4 1 0 4th byte 3rd byte 2nd byte 1st byte W Size LDC @aa:32,CCR Mnemonic MAC LDMAC LDM LDC Instruction 6th byte Instruction Format 5th byte disp disp disp abs abs 7th byte 8th byte 9th byte 10th byte H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 819 of 1126 Page 820 of 1126 0 ers 0 erd 0 ers 0 erd 0 ers 0 erd 0 erd 0 erd 0 ers 0 2 1 erd 0 ers 1 erd 0 ers 9 F 8 D B B 9 F 6 6 7 6 6 6 6 6 rs rs 0 erd 0 0 0 0 0 0 0 0 1 erd 8 A 0 0 0 0 0 0 0 0 0 D B B A F 1 1 1 1 1 1 1 1 6 6 6 7 0 0 0 0 0 0 0 0 0 1 erd 0 ers 8 A D B B 6 6 6 0 0 0 0 0 0 1 1 1 0 0 0 Cannot be used in this LSI L L L L L L L L L L L L L L B B MOV.L #xx:32,Rd MOV.L ERs,ERd MOV.L @ERs,ERd MOV.L @(d:16,ERs),ERd MOV.L @(d:32,ERs),ERd MOV.L @ERs+,ERd MOV.L @aa:16 ,ERd MOV.L @aa:32 ,ERd MOV.L ERs,@ERd MOV.L ERs,@(d:16,ERd) MOV.L ERs,@(d:32,ERd)*1 MOV.L ERs,@-ERd MOV.L ERs,@aa:16 MOV.L ERs,@aa:32 MOVFPE MOVFPE @aa:16,Rd MOVTPE MOVTPE Rs,@aa:16 MULXU MULXS 0 erd 8 7 0 0 1 0 W MOV.W Rs,@aa:32 rs rs 0 2 5 5 0 0 rd 0 erd C C rs rs 1 1 0 2 0 0 5 5 B W B W MULXS.B Rs,Rd MULXS.W Rs,ERd MULXU.B Rs,Rd MULXU.W Rs,ERd 1 ers 0 erd abs IMM 0 erd rd 0 ers 0 ers 0 0 W MOV.W Rs,@aa:16 abs W MOV.W Rs,@-ERd 0 rs disp W MOV.W Rs,@(d:32,ERd) rs 0 erd 8 7 W MOV.W Rs,@(d:16,ERd) A rs 1 erd F 6 W MOV.W Rs,@ERd rs W B 1 erd 9 6 W MOV.W @aa:32,Rd 6 rd 2 B 6 abs rd 0 B 6 abs rd 0 ers D 4th byte 6 3rd byte 2nd byte 1st byte MOV.W @aa:16,Rd Size W Mnemonic MOV.W @ERs+,Rd MOV Instruction 6 6 B B abs disp abs disp A 2 disp abs 0 ers abs 0 erd 6th byte Instruction Format 5th byte 7th byte 8th byte disp disp 9th byte 10th byte Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 7 0 0 0 6 L L B B W OR.L #xx:32,ERd OR.L ERs,ERd ORC #xx:8,CCR ORC #xx:8,EXR POP.W Rn ROTL PUSH POP ORC 1 1 1 1 W L L ROTL.W #2, Rd ROTL.L ERd ROTL.L #2, ERd 1 B W ROTL.W Rd ROTL.B Rd ROTL.B #2, Rd 1 L B PUSH.L ERn 0 6 W OR.W Rs,Rd 6 7 W OR.W #xx:16,Rd 0 1 B OR.B Rs,Rd L C B OR.B #xx:8,Rd W 1 L NOT.L ERd PUSH.W Rn 1 W NOT.W Rd POP.L ERn 1 B NOT.B Rd OR 0 -- NOP 1 L NEG.L ERd NOT 1 W NEG.W Rd rd 0 erd 0 1 3 0 7 7 7 rd 0 erd 0 rs 4 F 4 A 1 0 rn 0 rd rd rd rd 0 erd 0 erd 0 F 0 8 C 9 D B F 1 1 2 2 2 2 2 2 7 D D 1 rn 4 1 IMM rd 4 9 4 rd rs 4 IMM 0 rd 0 7 rd rd 0 erd 9 B 7 rd 8 7 1 2nd byte 1st byte B Size NEG.B Rd Mnemonic NOP NEG Instruction 6 6 0 6 D D 4 4 3rd byte IMM F 7 0 ern 0 ern IMM 0 ers 0 erd IMM 4th byte 6th byte Instruction Format 5th byte 7th byte 8th byte 9th byte 10th byte H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 821 of 1126 Page 822 of 1126 1 1 1 1 1 B W W L L SHAL.B #2, Rd SHAL.W Rd SHAL.W #2, Rd SHAL.L ERd SHAL.L #2, ERd 1 5 -- B 5 SHAL.B Rd 1 L -- ROTXR.L #2, ERd SHAL 1 L ROTXR.L ERd RTS 1 W ROTXR.W #2, Rd RTS 1 W ROTXR.W Rd RTE 1 B ROTXR.B #2, Rd ROTXL.L #2, ERd 1 1 L ROTXL.L ERd 1 1 W ROTXL.W #2, Rd L 1 W ROTXL.W Rd B 1 B ROTXL.B #2, Rd ROTXR.B Rd 1 ROTR.L #2, ERd 1 1 L ROTR.L ERd L 1 W ROTR.W #2, Rd B 1 ROTR.W Rd ROTXL.B Rd 1 B W ROTR.B #2, Rd 1 0 0 0 0 0 0 4 6 3 3 3 3 3 3 2 2 2 2 2 2 3 3 3 3 3 3 1st byte B Size ROTR.B Rd Mnemonic RTE ROTXR ROTXL ROTR Instruction rd 0 erd 0 erd F rd 9 B rd C D 0 rd 0 7 8 0 erd 7 7 rd rd 1 0 erd rd 4 3 rd 0 5 0 erd 7 rd 1 rd rd 4 0 erd rd 0 3 0 erd F 5 rd 0 erd rd 9 B rd C D rd 8 2nd byte 3rd byte 4th byte 6th byte Instruction Format 5th byte 7th byte 8th byte 9th byte 10th byte Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 7 7 6 0 erd rd rd rd rd 0 erd 0 erd rd rd rd rd 0 erd 0 erd 0 rd rd 0 1 0 1 0 1 0 B F 0 4 1 5 3 7 0 4 1 5 3 7 8 0 1 4 4 4 4 4 4 4 1 1 0 0 0 0 0 0 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 0 0 0 0 0 0 STC.W CCR,@(d:16,ERd) W STC.W EXR,@(d:16,ERd) W STC.W CCR,@(d:32,ERd) W STC.W EXR,@(d:32,ERd) W W STC.W EXR,@-ERd 0 0 W STC.W EXR,@ERd W 0 STC.W CCR,@ERd STC.W CCR,@-ERd 0 B W STC.B EXR,Rd 0 1 L -- SHLR.L #2, ERd B 1 L SHLR.L ERd STC.B CCR,Rd 1 W SHLR.W #2, Rd STC 1 W SHLR.W Rd SLEEP 1 B SHLL.L #2, ERd SHLR.B #2, Rd 1 L SHLL.L ERd 1 1 W SHLL.W #2, Rd 1 1 W SHLL.W Rd L 1 B SHLL.B #2, Rd B 1 SHLR.B Rd 1 L B SHAR.L #2, ERd SHLL.B Rd 1 L SHAR.L ERd 6 6 rd 0 erd D 1 1 W SHAR.W #2, Rd 1 6 rd 9 1 1 SHAR.W Rd 4 6 rd C 1 1 B W SHAR.B #2, Rd 1 6 rd 8 1 1 D D 8 8 F F 9 9 3rd byte 2nd byte 1st byte B Size SHAR.B Rd Mnemonic SLEEP SHLR SHLL SHAR Instruction 1 erd 1 erd 0 erd 0 erd 1 erd 1 erd 1 erd 1 erd 0 0 0 0 0 0 0 0 4th byte 6 6 B B disp disp A A 0 0 6th byte Instruction Format 5th byte 7th byte 8th byte disp disp 9th byte 10th byte H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 823 of 1126 Page 824 of 1126 D 1 7 6 7 0 0 0 B B W W L L B B XOR.B #xx:8,Rd XOR.B Rs,Rd XOR.W #xx:16,Rd XOR.W Rs,Rd XOR.L #xx:32,ERd XOR.L ERs,ERd XORC #xx:8,CCR XORC #xx:8,EXR XOR XORC 5 -- 1 TRAPA #x:2 B B SUBX #xx:8,Rd TRAPA 1 L SUBS #4,ERd 0 1 L SUBS #2,ERd B 1 L SUBS #1,ERd B 1 L SUB.L ERs,ERd TAS @ERd*2 7 L SUB.L #xx:32,ERd SUBX Rs,Rd 1 W SUB.W Rs,Rd STMAC MACL,ERd 7 0 L STMAC MACH,ERd W 0 L STM.L (ERn-ERn+3), @-SP SUB.W #xx:16,Rd 0 L STM.L (ERn-ERn+2), @-SP 1 0 L STM.L(ERn-ERn+1), @-SP 0 0 W STC.W EXR,@aa:32 L 0 W STC.W CCR,@aa:32 B 0 W STC.W EXR,@aa:16 SUB.B Rs,Rd 0 1 5 1 A 5 9 5 rd 7 1 E rd B B B A A 9 9 8 2 2 1 1 1 1 1 1 1 1st byte W Size STC.W CCR,@aa:16 Mnemonic TAS SUBX SUBS SUB STMAC STM STC Instruction B D D D 6 6 6 6 1 0 0 0 0 erd rd rd rd 0 ers 4 F 5 rd rd rd 0 0 rd 1 0 0 erd IMM rs 5 rs IMM 00 IMM E 0 erd 0 erd 0 erd IMM rs 9 8 0 0 6 5 5 B B 6 0 7 B 6 1 0 ers B 6 3rd byte 0 1 ers 0 erd 3 rs 3 rs 3 2 3 2 1 4 4 4 4 2nd byte abs C IMM IMM 0 ern 0 ern 0 ern abs 0 abs 0 0 abs IMM 6th byte Instruction Format 5th byte 0 0 ers 0 erd IMM 0 erd IMM F F F A A 8 8 4th byte 7th byte 8th byte 9th byte 10th byte Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 General Register ER0 ER1 * * * ER7 Register Field 000 001 * * * 111 Address Register 32-Bit Register 0000 0001 * * * 0111 1000 1001 * * * 1111 Register Field R0 R1 * * * R7 E0 E1 * * * E7 General Register 16-Bit Register The register fields specify general registers as follows. 0000 0001 * * * 0111 1000 1001 * * * 1111 Register Field R0H R1H * * * R7H R0L R1L * * * R7L General Register 8-Bit Register Notes: 1. Bit 7 of the 4th byte of the MOV.L ERs, @(d:32,ERd) instruction can be either 1 or 0. 2. Only register ER0, ER1, ER4, or ER5 should be used when using the TAS instruction. Legend: IMM: Immediate data (2, 3, 8, 16, or 32 bits) abs: Absolute address (8, 16, 24, or 32 bits) disp: Displacement (8, 16, or 32 bits) rs, rd, rn: Register field (4 bits specifying an 8-bit or 16-bit register. The symbols rs, rd, and rn correspond to operand symbols Rs, Rd,and Rn.) ers, erd, ern, erm: Register field (3 bits specifying an address register or 32-bit register. The symbols ers, erd, ern, and erm correspond to operand symbols ERs, ERd, ERn, and ERm.) H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 825 of 1126 Page 826 of 1126 1 2 3 BL BHI BLS XOR BSR BCS AND RTE BNE AND 7 BST TRAPA BEQ SUB ADD MOV AND MOV D F OR XOR C E CMP SUBX B BVS 9 Table A.3(2) MOV Table A.3(2) A Note: * Cannot be used in this LSI. 8 BVC MOV.B Table A.3(2) LDC BIST BXOR BAND BOR BLD BIXOR BIAND BIOR BILD OR RTS BCC XOR 6 ANDC ADDX BTST DIVXU OR 5 XORC 9 BCLR MULXU 4 ORC Table A.3(2) Table A.3(2) JMP BPL Table A.3(2) Table A.3(2) A EEPMOV BMI Table A.3(2) Table A.3(2) B Instruction when most significant bit of BH is 1. ADD BNOT DIVXU BRN LDC Table STC * * A.3(2) STMAC LDMAC Table Table Table A.3(2) A.3(2) A.3(2) BH Instruction when most significant bit of BH is 0. 8 7 BSET 5 6 BRA MULXU 4 3 2 Table A.3(2) 1 0 NOP 0 AL AL 2nd byte BSR BGE C CMP BLT D E JSR BGT SUBX ADDX Table A.3(3) MOV MOV F BLE Table A.3(2) Table A.3(2) Table A.3 AH 1st byte A.3 AH Instruction code Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Operation Code Map Table A.3 shows the operation code map. Operation Code Map (1) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 Note: * Cannot be used in this LSI. SUB OR OR SUB MOV CMP CMP ADD MOV 79 7A ADD MOV MOV 6A BCC Table * A.3(4) MOVFPE BLS ROTXR ROTXL SHLR SHLL STC 4 LDC Table A.3(4) BRA 58 NOT STM 3 BHI DAS 1F 2 BL 2nd byte BH BRN SUBS NOT 17 1B ROTXR 13 DEC ROTXL 12 1A SHLL SHLR 0F 11 DAA 0B 1 LDM 10 INC ADDS 0A MOV 0 01 BH AL 1st byte AH XOR XOR BCS DEC EXTU INC 5 AND AND BNE MAC* 6 BEQ DEC EXTU ROTXR ROTXL SHLR SHLL INC 7 MOV BVC 9 BVS SUBS NEG ROTR ROTL SHAR SHAL ADDS SLEEP 8 MOV BPL CLRMAC * A BMI NEG B C BGE MOVTPE* CMP SUB ROTR ROTL SHAR SHAL MOV ADD Table A.3(3) D BLT DEC EXTS INC Table A.3(3) BGT TAS E F BLE DEC EXTS ROTR ROTL SHAR SHAL INC Table A.3(3) Table A.3 AH AL Instruction code H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Operation Code Map (2) Page 827 of 1126 Page 828 of 1126 *2 7Faa7 BSET BSET BNOT BNOT BNOT BNOT DIVXS 1 AL BCLR BCLR BCLR BCLR MULXS 2 BH 3 BTST BTST BTST BTST XOR 5 DH AND 6 DL 4th byte 7 BOR BXOR BAND BLD BIOR BIXOR BIAND BILD BST BIST BOR BXOR BAND BLD BIOR BIXOR BIAND BILD BST BIST OR 4 CL 3rd byte CH DIVXS BL 2nd byte Notes: 1. r is the register specification field. 2. aa is the absolute address specification. *2 7Faa6 *2 7Eaa7 7Eaa6 BSET *2 BSET 7Dr07 *1 *1 *1 MULXS 0 7Dr06 *1 7Cr07 7Cr06 01F06 01D05 01C05 CL AH 1st byte 8 9 A B C D E F Instruction when most significant bit of DH is 0. Instruction when most significant bit of DH is 1. Table A.3 AH AL BH BL CH Instruction code Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Operation Code Map (3) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 AH BSET 0 BNOT BNOT 1 AL 1st byte BSET 1 0 BCLR 2 BH 3 6 7 EL 5th byte EH 5 DH 6 DL 4th byte 7 EH EL 5th byte BXOR BAND BLD BOR BIXOR BIAND BILD BIOR BST BIST 4 CL 3rd byte CH BTST 3 5 DL 4th byte DH BXOR BAND BLD BOR BIXOR BIAND BILD BIOR BST BIST 4 CL 3rd byte CH BTST BL 2nd byte BCLR 2 BL 2nd byte BH Note: * aa is the absolute address specification. 6A38aaaaaaaa7* 6A38aaaaaaaa6* 6A30aaaaaaaa7* 6A30aaaaaaaa6* AHALBHBL ... FHFLGH GL Instruction code 6A18aaaa7* 6A18aaaa6* 6A10aaaa7* 6A10aaaa6* AHALBHBLCHCLDHDLEH AL 1st byte AH 8 8 FH 9 FL 6th byte 9 FL 6th byte FH A B HH HL 8th byte C D E F B C D E F Instruction when most significant bit of HH is 0. Instruction when most significant bit of HH is 1. GL 7th byte GH A Instruction when most significant bit of FH is 0. Instruction when most significant bit of FH is 1. Table A.3 EL Instruction code H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Operation Code Map (4) Page 829 of 1126 Appendix A Instruction Set A.4 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Number of States Required for Instruction Execution The tables in this section can be used to calculate the number of states required for instruction execution by the CPU. Table A.5 indicates the number of instruction fetch, data read/write, and other cycles occurring in each instruction. Table A.4 indicates the number of states required for each cycle. The number of states required for execution of an instruction can be calculated from these two tables as follows: Execution states = I x SI + J x SJ + K x SK + L x SL + M x SM + N x SN Examples: Advanced mode, program code and stack located in external memory, on-chip supporting modules accessed in two states with 8-bit bus width, external devices accessed in three states with one wait state and 16-bit bus width. 1. BSET #0, @FFFFC7:8 From table A.5: I = L = 2, J = K = M = N = 0 From table A.4: SI = 4, SL = 2 Number of states required for execution = 2 x 4 + 2 x 2 = 12 2. JSR @@30 From table A.5: I = J = K = 2, L = M = N = 0 From table A.4: SI = SJ = SK = 4 Number of states required for execution = 2 x 4 + 2 x 4 + 2 x 4 = 24 Page 830 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Table A.4 Appendix A Instruction Set Number of States per Cycle Access Conditions On-Chip Memory Cycle Instruction fetch SI 1 External Device On-Chip Supporting Module 8-Bit Bus 16-Bit Bus 4 2 8-Bit Bus 16-Bit Bus 2-State 3-State 2-State 3-State Access Access Access Access 4 6 + 2m 2 3+m 1 1 Branch address read SJ Stack operation SK Byte data access SL 2 2 3+m Word data access SM 4 4 6 + 2m Internal operation SN 1 1 1 1 1 Legend: m: Number of wait states inserted into external device access REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 831 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Table A.5 Number of Cycles in Instruction Execution Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access Internal Operation M N Instruction Mnemonic I ADD ADD.B #xx:8,Rd 1 ADD.B Rs,Rd 1 ADD.W #xx:16,Rd 2 ADD.W Rs,Rd 1 ADD.L #xx:32,ERd 3 ADD.L ERs,ERd 1 ADDS ADDS #1/2/4,ERd 1 ADDX ADDX #xx:8,Rd 1 ADDX Rs,Rd 1 AND AND.B #xx:8,Rd 1 ANDC BAND Bcc AND.B Rs,Rd 1 AND.W #xx:16,Rd 2 AND.W Rs,Rd 1 AND.L #xx:32,ERd 3 AND.L ERs,ERd 2 ANDC #xx:8,CCR 1 ANDC #xx:8,EXR 2 J K L BAND #xx:3,Rd 1 BAND #xx:3,@ERd 2 1 BAND #xx:3,@aa:8 2 1 BAND #xx:3,@aa:16 3 1 BAND #xx:3,@aa:32 4 1 BRA d:8 (BT d:8) 2 BRN d:8 (BF d:8) 2 BHI d:8 2 BLS d:8 2 BCC d:8 (BHS d:8) 2 BCS d:8 (BLO d:8) 2 BNE d:8 2 BEQ d:8 2 BVC d:8 2 Page 832 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access Internal Operation M N Instruction Mnemonic I Bcc BVS d:8 2 BPL d:8 2 BCLR BMI d:8 2 BGE d:8 2 BLT d:8 2 BGT d:8 2 BLE d:8 2 BRA d:16 (BT d:16) 2 K L 1 BRN d:16 (BF d:16) 2 1 BHI d:16 2 1 BLS d:16 2 1 BCC d:16 (BHS d:16) 2 1 BCS d:16 (BLO d:16) 2 1 BNE d:16 2 1 BEQ d:16 2 1 BVC d:16 2 1 BVS d:16 2 1 BPL d:16 2 1 BMI d:16 2 1 BGE d:16 2 1 BLT d:16 2 1 BGT d:16 2 1 BLE d:16 2 1 BCLR #xx:3,Rd 1 BCLR #xx:3,@ERd 2 2 BCLR #xx:3,@aa:8 2 2 BCLR #xx:3,@aa:16 3 2 BCLR #xx:3,@aa:32 4 2 BCLR Rn,Rd 1 BCLR Rn,@ERd 2 2 BCLR Rn,@aa:8 2 2 BCLR Rn,@aa:16 3 2 BCLR Rn,@aa:32 4 2 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 J Page 833 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access Internal Operation M N Instruction Mnemonic I BIAND BIAND #xx:3,Rd 1 BIAND #xx:3,@ERd 2 BILD BIOR BIST BIXOR BLD J K L 1 BIAND #xx:3,@aa:8 2 1 BIAND #xx:3,@aa:16 3 1 BIAND #xx:3,@aa:32 4 1 BILD #xx:3,Rd 1 BILD #xx:3,@ERd 2 1 BILD #xx:3,@aa:8 2 1 BILD #xx:3,@aa:16 3 1 BILD #xx:3,@aa:32 4 1 BIOR #xx:8,Rd 1 BIOR #xx:8,@ERd 2 1 BIOR #xx:8,@aa:8 2 1 BIOR #xx:8,@aa:16 3 1 BIOR #xx:8,@aa:32 4 1 BIST #xx:3,Rd 1 BIST #xx:3,@ERd 2 2 BIST #xx:3,@aa:8 2 2 BIST #xx:3,@aa:16 3 2 BIST #xx:3,@aa:32 4 2 BIXOR #xx:3,Rd 1 BIXOR #xx:3,@ERd 2 1 BIXOR #xx:3,@aa:8 2 1 BIXOR #xx:3,@aa:16 3 1 BIXOR #xx:3,@aa:32 4 1 BLD #xx:3,Rd 1 BLD #xx:3,@ERd 2 1 BLD #xx:3,@aa:8 2 1 BLD #xx:3,@aa:16 3 1 BLD #xx:3,@aa:32 4 1 Page 834 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access Internal Operation M N Instruction Mnemonic I BNOT BNOT #xx:3,Rd 1 BNOT #xx:3,@ERd 2 2 BNOT #xx:3,@aa:8 2 2 BNOT #xx:3,@aa:16 3 2 BNOT #xx:3,@aa:32 4 2 BNOT Rn,Rd 1 BNOT Rn,@ERd 2 2 BNOT Rn,@aa:8 2 2 BNOT Rn,@aa:16 3 2 BNOT Rn,@aa:32 4 2 BOR #xx:3,Rd 1 BOR #xx:3,@ERd 2 BOR BSET BSR BST K L 1 BOR #xx:3,@aa:8 2 1 BOR #xx:3,@aa:16 3 1 BOR #xx:3,@aa:32 4 1 BSET #xx:3,Rd 1 BSET #xx:3,@ERd 2 2 BSET #xx:3,@aa:8 2 2 BSET #xx:3,@aa:16 3 2 BSET #xx:3,@aa:32 4 2 BSET Rn,Rd 1 BSET Rn,@ERd 2 2 BSET Rn,@aa:8 2 2 BSET Rn,@aa:16 3 2 BSET Rn,@aa:32 4 BSR d:8 2 2 BSR d:16 2 2 BST #xx:3,Rd 1 2 1 BST #xx:3,@ERd 2 2 BST #xx:3,@aa:8 2 2 BST #xx:3,@aa:16 3 2 BST #xx:3,@aa:32 4 2 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 J Page 835 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access Internal Operation M N Instruction Mnemonic I BTST BTST #xx:3,Rd 1 BTST #xx:3,@ERd 2 BXOR CLRMAC CMP L 1 2 1 BTST #xx:3,@aa:16 3 1 BTST #xx:3,@aa:32 4 1 BTST Rn,Rd 1 BTST Rn,@ERd 2 1 BTST Rn,@aa:8 2 1 BTST Rn,@aa:16 3 1 BTST Rn,@aa:32 4 1 BXOR #xx:3,Rd 1 BXOR #xx:3,@ERd 2 1 BXOR #xx:3,@aa:8 2 1 BXOR #xx:3,@aa:16 3 1 BXOR #xx:3,@aa:32 4 1 CLRMAC 1 CMP.B #xx:8,Rd 1 CMP.B Rs,Rd 1 CMP.W #xx:16,Rd 2 CMP.W Rs,Rd 1 3 CMP.L ERs,ERd 1 DAA DAA Rd 1 DAS DAS Rd 1 DEC DEC.B Rd 1 DEC.W #1/2,Rd 1 DEC.L #1/2,ERd 1 DIVXS.B Rs,Rd 2 DIVXU K BTST #xx:3,@aa:8 CMP.L #xx:32,ERd DIVXS J 1*1 11 DIVXS.W Rs,ERd 2 19 DIVXU.B Rs,Rd 1 11 DIVXU.W Rs,ERd 1 19 Page 836 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access Internal Operation M N Instruction Mnemonic I EEPMOV EEPMOV.B 2 EEPMOV.W 2 EXTS EXTU INC JMP JSR LDC EXTS.W Rd 1 EXTS.L ERd 1 EXTU.W Rd 1 EXTU.L ERd 1 INC.B Rd 1 INC.W #1/2,Rd 1 INC.L #1/2,ERd 1 JMP @ERn 2 JMP @aa:24 2 JMP @@aa:8 2 K L 2n+2*2 2n+2*2 1 2 1 JSR @ERn 2 2 JSR @aa:24 2 2 JSR @@aa:8 2 LDC #xx:8,CCR 1 LDC #xx:8,EXR 2 LDC Rs,CCR 1 LDC Rs,EXR 1 2 1 2 LDC @ERs,CCR 2 1 LDC @ERs,EXR 2 1 LDC @(d:16,ERs),CCR 3 1 LDC @(d:16,ERs),EXR 3 1 LDC @(d:32,ERs),CCR 5 1 LDC @(d:32,ERs),EXR 5 1 LDC @ERs+,CCR 2 1 1 LDC @ERs+,EXR 2 1 1 LDC @aa:16,CCR 3 1 LDC @aa:16,EXR 3 1 LDC @aa:32,CCR 4 1 LDC @aa:32,EXR 4 1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 J Page 837 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access Internal Operation M N Instruction Mnemonic I LDM LDM.L @SP+, (ERn-ERn+1) 2 4 1 LDM.L @SP+, (ERn-ERn+2) 2 6 1 LDM.L @SP+, (ERn-ERn+3) 2 8 1 LDMAC ERs,MACH 1 LDMAC ERs,MACL 1 LDMAC J K L 1*1 1*1 MAC MAC @ERn+,@ERm+ 2 MOV MOV.B #xx:8,Rd 1 2 MOV.B Rs,Rd 1 MOV.B @ERs,Rd 1 1 MOV.B @(d:16,ERs),Rd 2 1 MOV.B @(d:32,ERs),Rd 4 1 MOV.B @ERs+,Rd 1 1 MOV.B @aa:8,Rd 1 1 MOV.B @aa:16,Rd 2 1 MOV.B @aa:32,Rd 3 1 MOV.B Rs,@ERd 1 1 MOV.B Rs,@(d:16,ERd) 2 1 MOV.B Rs,@(d:32,ERd) 4 1 MOV.B Rs,@-ERd 1 1 MOV.B Rs,@aa:8 1 1 MOV.B Rs,@aa:16 2 1 1 1 1 MOV.B Rs,@aa:32 3 MOV.W #xx:16,Rd 2 MOV.W Rs,Rd 1 MOV.W @ERs,Rd 1 1 MOV.W @(d:16,ERs),Rd 2 1 MOV.W @(d:32,ERs),Rd 4 1 MOV.W @ERs+,Rd 1 1 MOV.W @aa:16,Rd 2 1 MOV.W @aa:32,Rd 3 1 MOV.W Rs,@ERd 1 1 Page 838 of 1126 1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access Internal Operation M N Instruction Mnemonic I J K L MOV MOV.W Rs,@(d:16,ERd) 2 1 MOV.W Rs,@(d:32,ERd) 4 1 MOV.W Rs,@-ERd 1 1 MOV.W Rs,@aa:16 2 1 MOV.W Rs,@aa:32 3 1 MOV.L #xx:32,ERd 3 MOV.L ERs,ERd 1 MOV.L @ERs,ERd 2 2 MOV.L @(d:16,ERs),ERd 3 2 MOV.L @(d:32,ERs),ERd 5 2 MOV.L @ERs+,ERd 2 2 MOV.L @aa:16,ERd 3 2 MOV.L @aa:32,ERd 4 2 MOV.L ERs,@ERd 2 2 MOV.L ERs,@(d:16,ERd) 3 2 1 1 MOV.L ERs,@(d:32,ERd) 5 2 MOV.L ERs,@-ERd 2 2 MOV.L ERs,@aa:16 3 2 MOV.L ERs,@aa:32 4 2 MOVFPE MOVFPE @:aa:16,Rd Can not be used in this LSI MOVTPE MOVTPE Rs,@:aa:16 MULXS MULXS.B Rs,Rd 2 2 MULXS.W Rs,ERd 2 3 MULXU.B Rs,Rd 1 2 MULXU.W Rs,ERd 1 3 MULXU NEG NEG.B Rd 1 NEG.W Rd 1 NEG.L ERd 1 NOP NOP 1 NOT NOT.B Rd 1 NOT.W Rd 1 NOT.L ERd 1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 1 Page 839 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access Internal Operation M N Instruction Mnemonic I OR OR.B #xx:8,Rd 1 OR.B Rs,Rd 1 OR.W #xx:16,Rd 2 OR.W Rs,Rd 1 ORC POP PUSH ROTL ROTR ROTXL J K L OR.L #xx:32,ERd 3 OR.L ERs,ERd 2 ORC #xx:8,CCR 1 ORC #xx:8,EXR 2 POP.W Rn 1 1 1 POP.L ERn 2 2 1 PUSH.W Rn 1 1 1 PUSH.L ERn 2 2 1 ROTL.B Rd 1 ROTL.B #2,Rd 1 ROTL.W Rd 1 ROTL.W #2,Rd 1 ROTL.L ERd 1 ROTL.L #2,ERd 1 ROTR.B Rd 1 ROTR.B #2,Rd 1 ROTR.W Rd 1 ROTR.W #2,Rd 1 ROTR.L ERd 1 ROTR.L #2,ERd 1 ROTXL.B Rd 1 ROTXL.B #2,Rd 1 ROTXL.W Rd 1 ROTXL.W #2,Rd 1 ROTXL.L ERd 1 ROTXL.L #2,ERd 1 Page 840 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access Internal Operation M N Instruction Mnemonic I ROTXR ROTXR.B Rd 1 ROTXR.B #2,Rd 1 ROTXR.W Rd 1 ROTXR.W #2,Rd 1 J K L ROTXR.L ERd 1 ROTXR.L #2,ERd 1 RTE RTE 2 2/3*3 1 RTS RTS 2 2 1 SHAL SHAL.B Rd 1 SHAL.B #2,Rd 1 SHAL.W Rd 1 SHAL.W #2,Rd 1 SHAR SHLL SHLR SLEEP SHAL.L ERd 1 SHAL.L #2,ERd 1 SHAR.B Rd 1 SHAR.B #2,Rd 1 SHAR.W Rd 1 SHAR.W #2,Rd 1 SHAR.L ERd 1 SHAR.L #2,ERd 1 SHLL.B Rd 1 SHLL.B #2,Rd 1 SHLL.W Rd 1 SHLL.W #2,Rd 1 SHLL.L ERd 1 SHLL.L #2,ERd 1 SHLR.B Rd 1 SHLR.B #2,Rd 1 SHLR.W Rd 1 SHLR.W #2,Rd 1 SHLR.L ERd 1 SHLR.L #2,ERd 1 SLEEP 1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 1 Page 841 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access Internal Operation M N Instruction Mnemonic I STC STC.B CCR,Rd 1 STC.B EXR,Rd 1 STC.W CCR,@ERd 2 1 STC.W EXR,@ERd 2 1 STM STMAC SUB SUBS SUBX J K L STC.W CCR,@(d:16,ERd) 3 1 STC.W EXR,@(d:16,ERd) 3 1 STC.W CCR,@(d:32,ERd) 5 1 STC.W EXR,@(d:32,ERd) 5 1 STC.W CCR,@-ERd 2 1 1 STC.W EXR,@-ERd 2 1 1 STC.W CCR,@aa:16 3 1 STC.W EXR,@aa:16 3 1 STC.W CCR,@aa:32 4 1 STC.W EXR,@aa:32 4 1 STM.L (ERn-ERn+1), @-SP 2 4 1 STM.L (ERn-ERn+2), @-SP 2 6 1 STM.L (ERn-ERn+3), @-SP 2 8 1 STMAC MACH,ERd 1 *1 STMAC MACL,ERd 1 *1 SUB.B Rs,Rd 1 SUB.W #xx:16,Rd 2 SUB.W Rs,Rd 1 SUB.L #xx:32,ERd 3 SUB.L ERs,ERd 1 SUBS #1/2/4,ERd 1 SUBX #xx:8,Rd 1 SUBX Rs,Rd 1 TAS TAS @ERd*4 2 TRAPA TRAPA #x:2 2 Page 842 of 1126 2 2 2/3*3 2 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access Internal Operation M N Instruction Mnemonic I XOR XOR.B #xx:8,Rd 1 XOR.B Rs,Rd 1 XOR.W #xx:16,Rd 2 XOR.W Rs,Rd 1 XORC XOR.L #xx:32,ERd 3 XOR.L ERs,ERd 2 XORC #xx:8,CCR 1 XORC #xx:8,EXR 2 J K L Notes: 1. An internal operation may require between 0 and 3 additional states, depending on the preceding instruction. 2. When n bytes of data are transferred. 3. 2 when EXR is invalid, 3 when EXR is valid. 4. Only register ER0, ER1, ER4, or ER5 should be used when using the TAS instruction. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 843 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set A.5 Bus States During Instruction Execution Table A.6 indicates the types of cycles that occur during instruction execution by the CPU. See table A.4 for the number of states per cycle. How to Read the Table: Order of execution Instruction 1 JMP@aa:24 R:W 2nd 2 3 4 5 6 7 8 Internal operation, R:W EA 1 state End of instruction Read effective address (word-size read) No read or write Read 2nd word of current instruction (word-size read) Legend R:B Byte-size read R:W Word-size read W:B Byte-size write W:W Word-size write :M Transfer of the bus is not performed immediately after this cycle 2nd Address of 2nd word (3rd and 4th bytes) 3rd Address of 3rd word (5th and 6th bytes) 4th Address of 4th word (7th and 8th bytes) 5th Address of 5th word (9th and 10th bytes) NEXT Address of next instruction EA Effective address VEC Vector address Page 844 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Figure A.1 shows timing waveforms for the address bus and the RD, HWR, and LWR signals during execution of the above instruction with an 8-bit bus, using three-state access with no wait states. Address bus RD HWR, LWR High level R:W 2nd Fetching 3rd byte of instruction Fetching 4th byte of instruction Internal operation R:W EA Fetching 1nd byte of instruction at jump address Fetching 2nd byte of instruction at jump address Figure A.1 Address Bus, RD, HWR, and LWR Timing (8-Bit Bus, Three-State Access, No Wait States) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 845 of 1126 Instruction ADD.B #xx:8,Rd ADD.B Rs,Rd ADD.W #xx:16,Rd ADD.W Rs,Rd ADD.L #xx:32,ERd ADD.L ERs,ERd ADDS #1/2/4,ERd ADDX #xx:8,Rd ADDX Rs,Rd AND.B #xx:8,Rd AND.B Rs,Rd AND.W #xx:16,Rd AND.W Rs,Rd AND.L #xx:32,ERd AND.L ERs,ERd ANDC #xx:8,CCR ANDC #xx:8,EXR BAND #xx:3,Rd BAND #xx:3,@ERd BAND #xx:3,@aa:8 BAND #xx:3,@aa:16 BAND #xx:3,@aa:32 BRA d:8 (BT d:8) BRN d:8 (BF d:8) BHI d:8 BLS d:8 BCC d:8 (BHS d:8) BCS d:8 (BLO d:8) BNE d:8 BEQ d:8 BVC d:8 BVS d:8 BPL d:8 BMI d:8 BGE d:8 BLT d:8 BGT d:8 1 R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT Page 846 of 1126 R:B EA R:B EA R:W 3rd R:W 3rd R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W NEXT R:W 3rd R:W NEXT R:W NEXT 4 5 R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W NEXT R:W NEXT 3 6 7 8 9 Table A.6 R:W 3rd R:W NEXT 2 Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Instruction Execution Cycles REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 1 R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd Instruction BLE d:8 BRA d:16 (BT d:16) BRN d:16 (BF d:16) BHI d:16 BLS d:16 BCC d:16 (BHS d:16) BCS d:16 (BLO d:16) BNE d:16 BEQ d:16 BVC d:16 BVS d:16 BPL d:16 BMI d:16 BGE d:16 BLT d:16 BGT d:16 BLE d:16 BCLR #xx:3,Rd BCLR #xx:3,@ERd BCLR #xx:3,@aa:8 BCLR #xx:3,@aa:16 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 R:B:M EA R:B:M EA R:W 3rd 2 R:W EA Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state 4 5 R:W:M NEXT W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA 3 6 7 8 9 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 847 of 1126 Instruction BCLR #xx:3,@aa:32 BCLR Rn,Rd BCLR Rn,@ERd BCLR Rn,@aa:8 BCLR Rn,@aa:16 BCLR Rn,@aa:32 BIAND #xx:3,Rd BIAND #xx:3,@ERd BIAND #xx:3,@aa:8 BIAND #xx:3,@aa:16 BIAND #xx:3,@aa:32 BILD #xx:3,Rd BILD #xx:3,@ERd BILD #xx:3,@aa:8 BILD #xx:3,@aa:16 BILD #xx:3,@aa:32 BIOR #xx:3,Rd BIOR #xx:3,@ERd BIOR #xx:3,@aa:8 BIOR #xx:3,@aa:16 BIOR #xx:3,@aa:32 BIST #xx:3,Rd BIST #xx:3,@ERd BIST #xx:3,@aa:8 BIST #xx:3,@aa:16 BIST #xx:3,@aa:32 BIXOR #xx:3,Rd BIXOR #xx:3,@ERd BIXOR #xx:3,@aa:8 BIXOR #xx:3,@aa:16 BIXOR #xx:3,@aa:32 BLD #xx:3,Rd BLD #xx:3,@ERd BLD #xx:3,@aa:8 BLD #xx:3,@aa:16 BLD #xx:3,@aa:32 BNOT #xx:3,Rd 1 R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:B EA R:B EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:B:M EA R:B:M EA R:W 3rd R:W 3rd Page 848 of 1126 R:B EA R:B EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th 5 6 R:W:M NEXT W:B EA R:B:M EA R:B:M EA R:W 3rd R:W 3rd 4 R:B:M EA 3 R:W 4th 2 R:W 3rd 7 8 9 Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 1 R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd Instruction BNOT #xx:3,@ERd BNOT #xx:3,@aa:8 BNOT #xx:3,@aa:16 BNOT #xx:3,@aa:32 BNOT Rn,Rd BNOT Rn,@ERd BNOT Rn,@aa:8 BNOT Rn,@aa:16 BNOT Rn,@aa:32 BOR #xx:3,Rd BOR #xx:3,@ERd BOR #xx:3,@aa:8 BOR #xx:3,@aa:16 BOR #xx:3,@aa:32 BSET #xx:3,Rd BSET #xx:3,@ERd BSET #xx:3,@aa:8 BSET #xx:3,@aa:16 BSET #xx:3,@aa:32 BSET Rn,Rd BSET Rn,@ERd BSET Rn,@aa:8 BSET Rn,@aa:16 BSET Rn,@aa:32 BSR d:8 BSR d:16 Jun 10, 2010 BST #xx:3,Rd BST #xx:3,@ERd BST #xx:3,@aa:8 BST #xx:3,@aa:16 BST #xx:3,@aa:32 BTST #xx:3,Rd BTST #xx:3,@ERd REJ09B0257-0700 Rev. 7.00 R:W:M NEXT R:B EA R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th W:W:M stack (H) R:W EA R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:W EA Internal operation, 1 state R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:B EA R:B EA R:W 3rd R:W 3rd W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA W:W stack (L) W:W:M stack (H) W:W stack (L) W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th R:B:M EA R:B:M EA R:W 3rd R:W 3rd 4 5 6 W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA 3 R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th 2 R:B:M EA R:B:M EA R:W 3rd R:W 3rd 7 8 9 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 849 of 1126 1 R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT Instruction BTST #xx:3,@aa:8 BTST #xx:3,@aa:16 BTST #xx:3,@aa:32 BTST Rn,Rd BTST Rn,@ERd BTST Rn,@aa:8 BTST Rn,@aa:16 BTST Rn,@aa:32 BXOR #xx:3,Rd BXOR #xx:3,@ERd BXOR #xx:3,@aa:8 BXOR #xx:3,@aa:16 BXOR #xx:3,@aa:32 CLRMAC CMP.B #xx:8,Rd CMP.B Rs,Rd CMP.W #xx:16,Rd CMP.W Rs,Rd CMP.L #xx:32,ERd CMP.L ERs,ERd DAA Rd DAS Rd DEC.B Rd DEC.W #1/2,Rd DEC.L #1/2,ERd DIVXS.B Rs,Rd DIVXS.W Rs,ERd DIVXU.B Rs,Rd DIVXU.W Rs,ERd EEPMOV.B EEPMOV.W EXTS.W Rd EXTS.L ERd EXTU.W Rd EXTU.L ERd INC.B Rd Page 850 of 1126 R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:B EA R:B EA R:W 3rd R:W 3rd Internal operation, 1 state R:W NEXT Internal operation, 11 states R:W NEXT Internal operation, 19 states Internal operation, 11 states Internal operation, 19 states R:B EAs*1 R:B EAd*1 R:B EAs*2 W:B EAd*2 R:B EAs*1 R:B EAd*1 R:B EAs*2 W:B EAd*2 Repeated n times*2 R:W 3rd R:W NEXT R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:B EA R:B EA R:W 3rd R:W 3rd R:W NEXT 3 4 5 R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT 2 R:B EA R:W 3rd R:W 3rd R:W NEXT R:W NEXT 6 7 8 9 Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd JSR @ERn JSR @aa:24 JSR @@aa:8 LDC #xx:8,CCR LDC #xx:8,EXR LDC Rs,CCR LDC Rs,EXR LDC @ERs,CCR LDC @ERs,EXR LDC @(d:16,ERs),CCR LDC @(d:16,ERs),EXR LDC @(d:32,ERs),CCR LDC @(d:32,ERs),EXR LDC @ERs+,CCR LDC @ERs+,EXR LDC @aa:16,CCR LDC @aa:16,EXR LDC @aa:32,CCR LDC @aa:32,EXR LDM.L @SP+, (ERn-ERn+1) LDM.L @SP+,(ERn-ERn+2) LDM.L @SP+,(ERn-ERn+3) R:W NEXT R:W NEXT JMP @@aa:8 LDMAC ERs,MACH 1 R:W NEXT R:W NEXT R:W NEXT R:W 2nd Instruction INC.W #1/2,Rd INC.L #1/2,ERd JMP @ERn JMP @aa:24 3 4 5 R:W EA R:W EA R:W NEXT R:W NEXT R:W 4th R:W 4th Internal operation, 1 state R:W NEXT Internal operation, 1 state R:W 3rd R:W NEXT R:W 3rd R:W NEXT R:W 3rd R:W 4th R:W 3rd R:W 4th R:W:M NEXT Internal operation, 1 state R:W NEXT Internal operation, 1 state R:W NEXT Internal operation, 1 state Internal operation, 1 state R:W NEXT R:W NEXT R:W 3rd R:W 3rd R:W 3rd R:W 3rd R:W NEXT R:W NEXT R:W NEXT R:W NEXT Repeated n times *3 R:W:M stack (H)*3 R:W stack (L)*3 R:W:M stack (H)*3 R:W stack (L)*3 R:W EA R:W EA R:W NEXT R:W EA R:W NEXT R:W EA R:W:M stack (H)*3 R:W stack (L)*3 R:W EA R:W EA R:W EA R:W 5th R:W 5th R:W EA Internal operation, R:W EA 1 state R:W EA W:W:M stack (H) W:W stack (L) Internal operation, R:W EA W:W:M stack (H) W:W stack (L) 1 state R:W:M aa:8 R:W aa:8 W:W:M stack (H) W:W stack (L) R:W EA Internal operation, R:W EA 1 state R:W:M aa:8 R:W aa:8 2 R:W EA R:W EA R:W EA 6 7 8 9 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 851 of 1126 1 R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd Instruction LDMAC ERs,MACL MAC @ERn+,@ERm+ MOV.B #xx:8,Rd MOV.B Rs,Rd MOV.B @ERs,Rd MOV.B @(d:16,ERs),Rd MOV.B @(d:32,ERs),Rd MOV.B @ERs+,Rd Page 852 of 1126 MOV.B @aa:8,Rd MOV.B @aa:16,Rd MOV.B @aa:32,Rd MOV.B Rs,@ERd MOV.B Rs,@(d:16,ERd) MOV.B Rs,@(d:32,ERd) MOV.B Rs,@-ERd MOV.B Rs,@aa:8 MOV.B Rs,@aa:16 MOV.B Rs,@aa:32 MOV.W #xx:16,Rd MOV.W Rs,Rd MOV.W @ERs,Rd MOV.W @(d:16,ERs),Rd MOV.W @(d:32,ERs),Rd MOV.W @ERs+, Rd MOV.W @aa:16,Rd MOV.W @aa:32,Rd MOV.W Rs,@ERd MOV.W Rs,@(d:16,ERd) MOV.W Rs,@(d:32,ERd) MOV.W Rs,@-ERd MOV.W Rs,@aa:16 MOV.W Rs,@aa:32 R:W EA R:W NEXT R:W 3rd Internal operation, 1 state R:W NEXT R:W 3rd W:W EA R:W NEXT R:W 3rd Internal operation, 1 state R:W NEXT R:W 3rd R:B EA R:W NEXT R:W 3rd Internal operation, 1 state R:B EA R:W NEXT R:W 3rd W:B EA R:W NEXT R:W 3rd Internal operation, 1 state W:B EA R:W NEXT R:W 3rd R:W NEXT W:W EA R:W NEXT W:W EA R:E 4th W:W EA R:W EA R:W NEXT R:W EA R:W 4th R:W EA W:B EA R:W NEXT W:B EA R:W 4th W:B EA R:B EA R:W NEXT R:B EA R:W 4th R:B EA 2 3 Internal operation, 1 state R:W NEXT R:W EAh W:W EA R:W NEXT R:B EA R:W NEXT W:B EA R:W NEXT R:B EA R:W NEXT R:W EAm 4 W:W EA R:W EA W:B EA R:B EA 5 6 7 8 9 Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 MOV.L ERs,@aa:16 MOV.L ERs,@aa:32 MOVFPE @aa:16,Rd MOVTPE Rs,@aa:16 MULXS.B Rs,Rd MULXS.W Rs,ERd MULXU.B Rs,Rd MULXU.W Rs,ERd NEG.B Rd NEG.W Rd NEG.L ERd NOP NOT.B Rd NOT.W Rd NOT.L ERd OR.B #xx:8,Rd OR.B Rs,Rd OR.W #xx:16,Rd OR.W Rs,Rd OR.L #xx:32,ERd OR.L ERs,ERd ORC #xx:8,CCR ORC #xx:8,EXR MOV.L @aa:16,ERd MOV.L @aa:32,ERd MOV.L ERs,@ERd MOV.L ERs,@(d:16,ERd) MOV.L ERs,@(d:32,ERd) MOV.L ERs,@-ERd Instruction MOV.L #xx:32,ERd MOV.L ERs,ERd MOV.L @ERs,ERd MOV.L @(d:16,ERs),ERd MOV.L @(d:32,ERs),ERd MOV.L @ERs+,ERd R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd 3 R:W NEXT W:W:M EA R:W NEXT R:W:M EA R:W NEXT W:W EA+2 W:W:M EA R:W 5th W:W:M EA R:W EA+2 R:W:M EA R:W 5th R:W:M EA 4 R:W NEXT R:W 3rd R:W NEXT R:W NEXT R:W NEXT R:W NEXT Internal operation, 2 states R:W NEXT Internal operation, 3 states Internal operation, 2 states Internal operation, 3 states R:W:M NEXT R:W:M 3rd R:W:M 3rd R:W:M NEXT 2 R:W 3rd R:W:M EA R:W NEXT R:W:M 4th Internal operation, 1 state R:W 2nd R:W:M 3rd R:W NEXT R:W 2nd R:W:M 3rd R:W 4th R:W 2nd R:W:M NEXT W:W:M EA R:W 2nd R:W:M 3rd R:W NEXT R:W 2nd R:W:M 3rd R:W:M 4th R:W 2nd R:W:M NEXT Internal operation, 1 state R:W 2nd R:W:M 3rd R:W NEXT R:W 2nd R:W:M 3rd R:W 4th Cannot be used in this LSI 1 R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd W:W EA+2 W:W:M EA W:W EA+2 R:W NEXT W:W EA+2 R:W EA+2 R:W:M EA R:W EA+2 R:W NEXT R:W EA+2 5 W:W EA+2 W:W:M EA R:W EA+2 R:W:M EA 6 W:W EA+2 R:W EA+2 7 8 9 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 853 of 1126 Page 854 of 1126 R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT PUSH.W Rn PUSH.L ERn ROTL.B Rd ROTL.B #2,Rd ROTL.W Rd ROTL.W #2,Rd ROTL.L ERd ROTL.L #2,ERd ROTR.B Rd ROTR.B #2,Rd ROTR.W Rd ROTR.W #2,Rd ROTR.L ERd ROTR.L #2,ERd ROTXL.B Rd ROTXL.B #2,Rd ROTXL.W Rd ROTXL.W #2,Rd ROTXL.L ERd ROTXL.L #2,ERd ROTXR.B Rd ROTXR.B #2,Rd ROTXR.W Rd ROTXR.W #2,Rd ROTXR.L ERd ROTXR.L #2,ERd RTE RTS R:W NEXT R:W 2nd POP.L ERn SHAL.B Rd 1 R:W NEXT Instruction POP.W Rn R:W:M stack (H) R:W stack (EXR) R:W stack (L) 1 state R:W stack (H) W:W EA+2 R:W EA+2 5 6 Internal operation, R:W*4 1 state Internal operation, R:W*4 R:W stack (L) 2 3 4 Internal operation, R:W EA 1 state R:W:M NEXT Internal operation, R:W:M EA 1 state Internal operation, W:W EA 1 state R:W:M NEXT Internal operation, W:W:M EA 1 state 7 8 9 Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 R:W 2nd R:W 2nd R:W 2nd STC EXR,@-ERd STC CCR,@aa:16 STC EXR,@aa:16 1 R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd Instruction SHAL.B #2,Rd SHAL.W Rd SHAL.W #2,Rd SHAL.L ERd SHAL.L #2,ERd SHAR.B Rd SHAR.B #2,Rd SHAR.W Rd SHAR.W #2,Rd SHAR.L ERd SHAR.L #2,ERd SHLL.B Rd SHLL.B #2,Rd SHLL.W Rd SHLL.W #2,Rd SHLL.L ERd SHLL.L #2,ERd SHLR.B Rd SHLR.B #2,Rd SHLR.W Rd SHLR.W #2,Rd SHLR.L ERd SHLR.L #2,ERd SLEEP STC CCR,Rd STC EXR,Rd STC CCR,@ERd STC EXR,@ERd STC CCR,@(d:16,ERd) STC EXR,@(d:16,ERd) STC CCR,@(d:32,ERd) STC EXR,@(d:32,ERd) STC CCR,@-ERd R:W 3rd R:W 3rd R:W NEXT R:W NEXT R:W NEXT R:W 3rd R:W 3rd R:W 3rd R:W 3rd R:W NEXT Internal operation:M 2 W:W EA W:W EA R:W NEXT R:W NEXT R:W 4th R:W 4th Internal operation, 1 state Internal operation, 1 state R:W NEXT R:W NEXT 3 W:W EA W:W EA W:W EA W:W EA W:W EA R:W 5th R:W 5th W:W EA 4 R:W NEXT R:W NEXT 5 W:W EA W:W EA 6 7 8 9 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Page 855 of 1126 1 R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd Instruction STC CCR,@aa:32 STC EXR,@aa:32 STM.L(ERn-ERn+1),@-SP STM.L(ERn-ERn+2),@-SP STM.L(ERn-ERn+3),@-SP STMAC MACH,ERd STMAC MACL,ERd SUB.B Rs,Rd SUB.W #xx:16,Rd SUB.W Rs,Rd SUB.L #xx:32,ERd SUB.L ERs,ERd SUBS #1/2/4,ERd SUBX #xx:8,Rd SUBX Rs,Rd TAS @ERd*8 TRAPA #x:2 Page 856 of 1126 XOR.B #xx8,Rd XOR.B Rs,Rd XOR.W #xx:16,Rd XOR.W Rs,Rd XOR.L #xx:32,ERd XOR.L ERs,ERd XORC #xx:8,CCR XORC #xx:8,EXR R:W NEXT R:W NEXT R:W 3rd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:B:M EA Internal operation, W:W stack (L) 1 state R:W 3rd R:W NEXT 2 3 R:W 3rd R:W 4th R:W 3rd R:W 4th R:W:M NEXT Internal operation, 1 state R:W:M NEXT Internal operation, 1 state R:W:M NEXT Internal operation, 1 state W:B EA W:W stack (H) 6 W:W stack (EXR) R:W:M VEC W:W:M stack (H)*3 W:W stack (L)*3 W:W:M stack (H)*3 W:W stack (L)*3 4 5 R:W NEXT W:W EA R:W NEXT W:W EA W:W:M stack (H)*3 W:W stack (L)*3 R:W VEC+2 7 9 Internal operation, R:W*7 1 state 8 Appendix A Instruction Set H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 1 R:W VEC Jun 10, 2010 3 4 Internal operation, R:W*5 1 state Internal operation, W:W stack (L) W:W stack (H) 1 state 2 R:W VEC+2 W:W stack (EXR) 5 R:W:M VEC 6 R:W VEC+2 7 9 Internal operation, R:W*7 1 state 8 Notes: 1. EAs is the contents of ER5. EAd is the contents of ER6. 2. EAs is the contents of ER5. EAd is the contents of ER6. Both registers are incremented by 1 after execution of the instruction. n is the initial value of R4L or R4. If n = 0, these bus cycles are not executed. 3. Repeated two times to save or restore two registers, three times for three registers, or four times for four registers. 4. Start address after return. 5. Start address of the program. 6. Prefetch address, equal to two plus the PC value pushed onto the stack. In recovery from sleep mode or software standby mode the read operation is replaced by an internal operation. 7. Start address of the interrupt-handling routine. 8. Only register ER0, ER1, ER4, or ER5 should be used when using the TAS instruction. Interrupt exception handling R:W*6 Instruction Reset exception handling H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM REJ09B0257-0700 Rev. 7.00 Appendix A Instruction Set Page 857 of 1126 Appendix A Instruction Set A.6 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Condition Code Modification This section indicates the effect of each CPU instruction on the condition code. The notation used in the table is defined below. m= 31 for longword operands 15 for word operands 7 for byte operands Si The i-th bit of the source operand Di The i-th bit of the destination operand Ri The i-th bit of the result Dn The specified bit in the destination operand -- Not affected Modified according to the result of the instruction (see definition) 0 Always cleared to 0 1 Always set to 1 * Undetermined (no guaranteed value) Z' Z flag before instruction execution C' C flag before instruction execution Page 858 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Table A.7 Instruction Appendix A Instruction Set Condition Code Modification H N Z V C Definition H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 ADD N = Rm Z = Rm * Rm-1 * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm ADDS -- -- -- -- -- H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 ADDX N = Rm Z = Z' * Rm * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm AND -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 ANDC Stores the corresponding bits of the result. No flags change when the operand is EXR. BAND -- -- -- -- Bcc -- -- -- -- -- BCLR -- -- -- -- -- BIAND -- -- -- -- C = C' * Dn BILD -- -- -- -- C = Dn BIOR -- -- -- -- C = C' + Dn BIST -- -- -- -- -- BIXOR -- -- -- -- C = C' * Dn + C' * Dn BLD -- -- -- -- C = Dn BNOT -- -- -- -- -- BOR -- -- -- -- BSET -- -- -- -- -- BSR -- -- -- -- -- BST -- -- -- -- -- BTST -- -- BXOR -- -- -- -- CLRMAC -- -- -- -- -- REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 -- -- C = C' * Dn C = C' + Dn Z = Dn C = C' * Dn + C' * Dn Page 859 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Instruction H N Z V C Definition H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 CMP N = Rm Z = Rm * Rm-1 * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm DAA * N = Rm * Z = Rm * Rm-1 * ...... * R0 C: decimal arithmetic carry DAS * N = Rm * Z = Rm * Rm-1 * ...... * R0 C: decimal arithmetic borrow DEC -- -- N = Rm Z = Rm * Rm-1 * ...... * R0 V = Dm * Rm DIVXS -- -- -- N = Sm * Dm + Sm * Dm Z = Sm * Sm-1 * ...... * S0 DIVXU -- -- -- N = Sm Z = Sm * Sm-1 * ...... * S0 EEPMOV -- -- -- -- -- EXTS -- EXTU -- 0 INC -- 0 0 -- N = Rm -- Z = Rm * Rm-1 * ...... * R0 Z = Rm * Rm-1 * ...... * R0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 V = Dm * Rm JMP -- -- -- -- -- JSR -- -- -- -- -- LDC Stores the corresponding bits of the result. No flags change when the operand is EXR. LDM -- -- -- -- -- LDMAC -- -- -- -- -- MAC -- -- -- -- -- Page 860 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Instruction H MOV -- N Z Appendix A Instruction Set V C Definition 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 MOVFPE Can not be used in this LSI MOVTPE MULXS -- -- -- N = R2m Z = R2m * R2m-1 * ...... * R0 MULXU -- -- -- -- -- NEG H = Dm-4 + Rm-4 N = Rm Z = Rm * Rm-1 * ...... * R0 V = Dm * Rm C = Dm + Rm NOP -- -- -- -- -- NOT -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 OR -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 ORC Stores the corresponding bits of the result. No flags change when the operand is EXR. POP -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 PUSH -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 ROTL -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = Dm (1-bit shift) or C = Dm-1 (2-bit shift) ROTR -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = D0 (1-bit shift) or C = D1 (2-bit shift) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 861 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix A Instruction Set Instruction H ROTXL -- N Z V C 0 Definition N = Rm Z = Rm * Rm-1 * ...... * R0 C = Dm (1-bit shift) or C = Dm-1 (2-bit shift) ROTXR -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = D0 (1-bit shift) or C = D1 (2-bit shift) RTE Stores the corresponding bits of the result. RTS -- -- -- -- -- SHAL -- N = Rm Z = Rm * Rm-1 * ...... * R0 V = Dm * Dm-1 + Dm * Dm-1 (1-bit shift) V = Dm * Dm-1 * Dm-2 * Dm * Dm-1 * Dm-2 (2-bit shift) C = Dm (1-bit shift) or C = Dm-1 (2-bit shift) SHAR -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = D0 (1-bit shift) or C = D1 (2-bit shift) SHLL -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = Dm (1-bit shift) or C = Dm-1 (2-bit shift) SHLR -- 0 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = D0 (1-bit shift) or C = D1 (2-bit shift) SLEEP -- -- -- -- -- STC -- -- -- -- -- STM -- -- -- -- -- STMAC -- Page 862 of 1126 -- N = 1 if MAC instruction resulted in negative value in MAC register Z = 1 if MAC instruction resulted in zero value in MAC register V = 1 if MAC instruction resulted in overflow REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Instruction H N Z V C Appendix A Instruction Set Definition H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 SUB N = Rm Z = Rm * Rm-1 * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm SUBS -- -- -- -- -- H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 SUBX N = Rm Z = Z' * Rm * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm TAS -- 0 -- N = Dm Z = Dm * Dm-1 * ...... * D0 TRAPA -- -- -- -- -- XOR -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 XORC Stores the corresponding bits of the result. No flags change when the operand is EXR. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 863 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Appendix B Internal I/O Register B.1 Address Address Register Name H'EBC0 to MRA H'EFBF MRB Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name Data Bus Width SM1 SM0 DM1 DM0 MD1 MD0 DTS Sz DTC 8/16/32* CHNE DISEL -- -- -- -- -- -- HCAN 8/16 SAR DAR CRA CRB H'F800 MCR MCR7 -- MCR5 -- -- MCR2 MCR1 MCR0 H'F801 GSR -- -- -- -- GSR3 GSR2 GSR1 GSR0 H'F802 BCR BCR7 BCR6 BCR5 BCR4 BCR3 BCR2 BCR1 BCR0 BCR15 BCR14 BCR13 BCR12 BCR11 BCR10 BCR9 BCR8 MBCR MBCR7 MBCR6 MBCR5 MBCR4 MBCR3 MBCR2 MBCR1 -- MBCR15 MBCR14 MBCR13 MBCR12 MBCR11 MBCR10 MBCR9 MBCR8 TXPR TXPR7 TXPR6 TXPR5 TXPR4 TXPR3 TXPR2 TXPR1 -- TXPR15 TXPR14 TXPR13 TXPR12 TXPR11 TXPR10 TXPR9 TXPR8 -- H'F803 H'F804 H'F805 H'F806 H'F807 H'F808 TXCR TXCR7 TXCR6 TXCR5 TXCR4 TXCR3 TXCR2 TXCR1 TXCR15 TXCR14 TXCR13 TXCR12 TXCR11 TXCR10 TXCR9 TXCR8 TXACK TXACK7 TXACK6 TXACK5 TXACK4 TXACK3 TXACK2 TXACK1 -- TXACK15 TXACK14 TXACK13 TXACK12 TXACK11 TXACK10 TXACK9 TXACK8 ABACK ABACK7 ABACK6 ABACK5 ABACK4 ABACK3 ABACK2 ABACK1 -- ABACK15 ABACK14 ABACK13 ABACK12 ABACK11 ABACK10 ABACK9 ABACK8 RXPR RXPR7 RXPR6 RXPR5 RXPR4 RXPR3 RXPR2 RXPR1 RXPR0 RXPR15 RXPR14 RXPR13 RXPR12 RXPR11 RXPR10 RXPR9 RXPR8 RFPR RFPR7 RFPR6 RFPR5 RFPR4 RFPR3 RFPR2 RFPR1 RFPR0 RFPR15 RFPR14 RFPR13 RFPR12 RFPR11 RFPR10 RFPR9 RFPR8 H'F809 H'F80A H'F80B H'F80C H'F80D H'F80E H'F80F H'F810 H'F811 Page 864 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Address Register Name H'F812 IRR Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name Data Bus Width HCAN 8/16 IRR6 IRR5 IRR4 IRR3 IRR2 IRR1 IRR0 -- -- IRR12 -- -- IRR9 IRR8 MBIMR MBIMR7 MBIMR6 MBIMR5 MBIMR4 MBIMR3 MBIMR2 MBIMR1 MBIMR0 MBIMR15 MBIMR14 MBIMR13 MBIMR12 MBIMR11 MBIMR10 MBIMR9 MBIMR8 IMR IMR7 IMR6 IMR5 IMR4 IMR3 IMR2 IMR1 -- -- -- -- IMR12 -- -- IMR9 IMR8 H'F817 H'F818 Bit 5 IRR7 H'F815 H'F816 Bit 6 -- H'F813 H'F814 Bit 7 Appendix B Internal I/O Register REC H'F819 TEC H'F81A UMSR UMSR7 UMSR6 UMSR5 UMSR4 UMSR3 UMSR2 UMSR1 UMSR0 UMSR15 UMSR14 UMSR13 UMSR12 UMSR11 UMSR10 UMSR9 UMSR8 LAFML7 LAFML6 LAFML5 LAFML4 LAFML3 LAFML2 LAFML1 LAFML0 LAFML15 LAFML14 LAFML13 LAFML12 LAFML11 LAFML10 LAFML9 LAFML8 LAFMH LAFMH7 LAFMH6 LAFMH5 -- -- -- LAFMH1 LAFMH0 LAFMH15 LAFMH14 LAFMH13 LAFMH12 LAFMH11 LAFMH10 LAFMH9 LAFMH8 H'F820 MC0[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F821 MC0[2] -- -- -- -- -- -- -- -- H'F822 MC0[3] -- -- -- -- -- -- -- -- H'F823 MC0[4] -- -- -- -- -- -- -- -- H'F824 MC0[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F825 MC0[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F826 MC0[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F827 MC0[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 H'F81B H'F81C LAFML H'F81D H'F81E H'F81F EXD_ID6 STD_ID3 H'F828 MC1[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F829 MC1[2] -- -- -- -- -- -- -- -- H'F82A MC1[3] -- -- -- -- -- -- -- -- H'F82B MC1[4] -- -- -- -- -- -- -- -- H'F82C MC1[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F82D MC1[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F82E MC1[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F82F MC1[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 EXD_ID6 STD_ID3 H'F830 MC2[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F831 MC2[2] -- -- -- -- -- -- -- -- H'F832 MC2[3] -- -- -- -- -- -- -- -- H'F833 MC2[4] -- -- -- -- -- -- -- -- H'F834 MC2[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F835 MC2[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F836 MC2[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F837 MC2[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 EXD_ID6 STD_ID3 Page 865 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Address Register Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name Data Bus Width HCAN 8/16 H'F838 MC3[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F839 MC3[2] -- -- -- -- -- -- -- -- H'F83A MC3[3] -- -- -- -- -- -- -- -- H'F83B MC3[4] -- -- -- -- -- -- -- -- H'F83C MC3[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F83D MC3[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F83E MC3[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F83F MC3[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 EXD_ID6 STD_ID3 H'F840 MC4[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F841 MC4[2] -- -- -- -- -- -- -- -- H'F842 MC4[3] -- -- -- -- -- -- -- -- H'F843 MC4[4] -- -- -- -- -- -- -- -- H'F844 MC4[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F845 MC4[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F846 MC4[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F847 MC4[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 EXD_ID6 STD_ID3 H'F848 MC5[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F849 MC5[2] -- -- -- -- -- -- -- -- H'F84A MC5[3] -- -- -- -- -- -- -- -- H'F84B MC5[4] -- -- -- -- -- -- -- -- H'F84C MC5[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F84D MC5[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F84E MC5[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F84F MC5[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 EXD_ID6 STD_ID3 H'F850 MC6[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F851 MC6[2] -- -- -- -- -- -- -- -- H'F852 MC6[3] -- -- -- -- -- -- -- -- H'F853 MC6[4] -- -- -- -- -- -- -- -- H'F854 MC6[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F855 MC6[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F856 MC6[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F857 MC6[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 EXD_ID6 STD_ID3 H'F858 MC7[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F859 MC7[2] -- -- -- -- -- -- -- -- H'F85A MC7[3] -- -- -- -- -- -- -- -- H'F85B MC7[4] -- -- -- -- -- -- -- -- H'F85C MC7[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F85D MC7[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F85E MC7[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F85F MC7[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Page 866 of 1126 EXD_ID6 STD_ID3 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Address Register Name Bit 7 Bit 6 Appendix B Internal I/O Register Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name Data Bus Width HCAN 8/16 H'F860 MC8[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F861 MC8[2] -- -- -- -- -- -- -- -- H'F862 MC8[3] -- -- -- -- -- -- -- -- H'F863 MC8[4] -- -- -- -- -- -- -- -- H'F864 MC8[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F865 MC8[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F866 MC8[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F867 MC8[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 EXD_ID6 STD_ID3 H'F868 MC9[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F869 MC9[2] -- -- -- -- -- -- -- -- H'F86A MC9[3] -- -- -- -- -- -- -- -- H'F86B MC9[4] -- -- -- -- -- -- -- -- H'F86C MC9[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F86D MC9[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F86E MC9[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F86F MC9[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 EXD_ID6 STD_ID3 H'F870 MC10[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F871 MC10[2] -- -- -- -- -- -- -- -- H'F872 MC10[3] -- -- -- -- -- -- -- -- H'F873 MC10[4] -- -- -- -- -- -- -- -- H'F874 MC10[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F875 MC10[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F876 MC10[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F877 MC10[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 EXD_ID6 STD_ID3 H'F878 MC11[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F879 MC11[2] -- -- -- -- -- -- -- -- H'F87A MC11[3] -- -- -- -- -- -- -- -- H'F87B MC11[4] -- -- -- -- -- -- -- -- H'F87C MC11[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F87D MC11[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F87E MC11[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F87F MC11[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 EXD_ID6 STD_ID3 H'F880 MC12[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F881 MC12[2] -- -- -- -- -- -- -- -- H'F882 MC12[3] -- -- -- -- -- -- -- -- H'F883 MC12[4] -- -- -- -- -- -- -- -- H'F884 MC12[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F885 MC12[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F886 MC12[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F887 MC12[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 EXD_ID6 STD_ID3 Page 867 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Address Register Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name Data Bus Width HCAN 8/16 H'F888 MC13[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F889 MC13[2] -- -- -- -- -- -- -- -- H'F88A MC13[3] -- -- -- -- -- -- -- -- H'F88B MC13[4] -- -- -- -- -- -- -- -- H'F88C MC13[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F88D MC13[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F88E MC13[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F88F MC13[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 EXD_ID6 STD_ID3 H'F890 MC14[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F891 MC14[2] -- -- -- -- -- -- -- -- H'F892 MC14[3] -- -- -- -- -- -- -- -- H'F893 MC14[4] -- -- -- -- -- -- -- -- H'F894 MC14[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F895 MC14[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F896 MC14[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F897 MC14[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 EXD_ID6 STD_ID3 H'F898 MC15[1] -- -- -- -- DLC3 DLC2 DLC1 DLC0 H'F899 MC15[2] -- -- -- -- -- -- -- -- H'F89A MC15[3] -- -- -- -- -- -- -- -- H'F89B MC15[4] -- -- -- -- -- -- -- -- H'F89C MC15[5] STD_ID2 STD_ID1 STD_ID0 RTR IDE -- EXD_ID17 EXD_ID16 H'F89D MC15[6] STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 H'F89E MC15[7] EXD_ID7 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 H'F89F MC15[8] EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 H'F8B0 MD0[1] MSG_DATA_1 (8 bits) H'F8B1 MD0[2] MSG_DATA_2 (8 bits) H'F8B2 MD0[3] MSG_DATA_3 (8 bits) H'F8B3 MD0[4] MSG_DATA_4 (8 bits) H'F8B4 MD0[5] MSG_DATA_5 (8 bits) H'F8B5 MD0[6] MSG_DATA_6 (8 bits) H'F8B6 MD0[7] MSG_DATA_7 (8 bits) H'F8B7 MD0[8] MSG_DATA_8 (8 bits) H'F8B8 MD1[1] MSG_DATA_1 (8 bits) H'F8B9 MD1[2] MSG_DATA_2 (8 bits) H'F8BA MD1[3] MSG_DATA_3 (8 bits) H'F8BB MD1[4] MSG_DATA_4 (8 bits) H'F8BC MD1[5] MSG_DATA_5 (8 bits) H'F8BD MD1[6] MSG_DATA_6 (8 bits) H'F8BE MD1[7] MSG_DATA_7 (8 bits) H'F8BF MD1[8] MSG_DATA_8 (8 bits) Page 868 of 1126 EXD_ID6 STD_ID3 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Address Register Name Bit 7 H'F8C0 MD2[1] MSG_DATA_1 (8 bits) H'F8C1 MD2[2] MSG_DATA_2 (8 bits) H'F8C2 MD2[3] MSG_DATA_3 (8 bits) H'F8C3 MD2[4] MSG_DATA_4 (8 bits) H'F8C4 MD2[5] MSG_DATA_5 (8 bits) H'F8C5 MD2[6] MSG_DATA_6 (8 bits) H'F8C6 MD2[7] MSG_DATA_7 (8 bits) H'F8C7 MD2[8] MSG_DATA_8 (8 bits) H'F8C8 MD3[1] MSG_DATA_1 (8 bits) H'F8C9 MD3[2] MSG_DATA_2 (8 bits) H'F8CA MD3[3] MSG_DATA_3 (8 bits) H'F8CB MD3[4] MSG_DATA_4 (8 bits) H'F8CC MD3[5] MSG_DATA_5 (8 bits) H'F8CD MD3[6] MSG_DATA_6 (8 bits) H'F8CE MD3[7] MSG_DATA_7 (8 bits) H'F8CF MD3[8] MSG_DATA_8 (8 bits) H'F8D0 MD4[1] MSG_DATA_1 (8 bits) H'F8D1 MD4[2] MSG_DATA_2 (8 bits) H'F8D2 MD4[3] MSG_DATA_3 (8 bits) H'F8D3 MD4[4] MSG_DATA_4 (8 bits) H'F8D4 MD4[5] MSG_DATA_5 (8 bits) H'F8D5 MD4[6] MSG_DATA_6 (8 bits) H'F8D6 MD4[7] MSG_DATA_7 (8 bits) H'F8D7 MD4[8] MSG_DATA_8 (8 bits) H'F8D8 MD5[1] MSG_DATA_1 (8 bits) H'F8D9 MD5[2] MSG_DATA_2 (8 bits) H'F8DA MD5[3] MSG_DATA_3 (8 bits) H'F8DB MD5[4] MSG_DATA_4 (8 bits) H'F8DC MD5[5] MSG_DATA_5 (8 bits) H'F8DD MD5[6] MSG_DATA_6 (8 bits) H'F8DE MD5[7] MSG_DATA_7 (8 bits) H'F8DF MD5[8] MSG_DATA_8 (8 bits) H'F8E0 MD6[1] MSG_DATA_1 (8 bits) H'F8E1 MD6[2] MSG_DATA_2 (8 bits) H'F8E2 MD6[3] MSG_DATA_3 (8 bits) H'F8E3 MD6[4] MSG_DATA_4 (8 bits) H'F8E4 MD6[5] MSG_DATA_5 (8 bits) H'F8E5 MD6[6] MSG_DATA_6 (8 bits) H'F8E6 MD6[7] MSG_DATA_7 (8 bits) H'F8E7 MD6[8] MSG_DATA_8 (8 bits) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Bit 6 Appendix B Internal I/O Register Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name Data Bus Width HCAN 8/16 Page 869 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Address Register Name Bit 7 H'F8E8 MD7[1] MSG_DATA_1 (8 bits) H'F8E9 MD7[2] MSG_DATA_2 (8 bits) H'F8EA MD7[3] MSG_DATA_3 (8 bits) H'F8EB MD7[4] MSG_DATA_4 (8 bits) H'F8EC MD7[5] MSG_DATA_5 (8 bits) H'F8ED MD7[6] MSG_DATA_6 (8 bits) H'F8EE MD7[7] MSG_DATA_7 (8 bits) H'F8EF MD7[8] MSG_DATA_8 (8 bits) H'F8F0 MD8[1] MSG_DATA_1 (8 bits) H'F8F1 MD8[2] MSG_DATA_2 (8 bits) H'F8F2 MD8[3] MSG_DATA_3 (8 bits) H'F8F3 MD8[4] MSG_DATA_4 (8 bits) H'F8F4 MD8[5] MSG_DATA_5 (8 bits) H'F8F5 MD8[6] MSG_DATA_6 (8 bits) H'F8F6 MD8[7] MSG_DATA_7 (8 bits) H'F8F7 MD8[8] MSG_DATA_8 (8 bits) H'F8F8 MD9[1] MSG_DATA_1 (8 bits) H'F8F9 MD9[2] MSG_DATA_2 (8 bits) H'F8FA MD9[3] MSG_DATA_3 (8 bits) H'F8FB MD9[4] MSG_DATA_4 (8 bits) H'F8FC MD9[5] MSG_DATA_5 (8 bits) H'F8FD MD9[6] MSG_DATA_6 (8 bits) H'F8FE MD9[7] MSG_DATA_7 (8 bits) H'F8FF MD9[8] MSG_DATA_8 (8 bits) H'F900 MD10[1] MSG_DATA_1 (8 bits) H'F901 MD10[2] MSG_DATA_2 (8 bits) H'F902 MD10[3] MSG_DATA_3 (8 bits) H'F903 MD10[4] MSG_DATA_4 (8 bits) H'F904 MD10[5] MSG_DATA_5 (8 bits) H'F905 MD10[6] MSG_DATA_6 (8 bits) H'F906 MD10[7] MSG_DATA_7 (8 bits) H'F907 MD10[8] MSG_DATA_8 (8 bits) H'F908 MD11[1] MSG_DATA_1 (8 bits) H'F909 MD11[2] MSG_DATA_2 (8 bits) H'F90A MD11[3] MSG_DATA_3 (8 bits) H'F90B MD11[4] MSG_DATA_4 (8 bits) H'F90C MD11[5] MSG_DATA_5 (8 bits) H'F90D MD11[6] MSG_DATA_6 (8 bits) H'F90E MD11[7] MSG_DATA_7 (8 bits) H'F90F MD11[8] MSG_DATA_8 (8 bits) Page 870 of 1126 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name Data Bus Width HCAN 8/16 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Address Register Name Bit 7 H'F910 MD12[1] MSG_DATA_1 (8 bits) H'F911 MD12[2] MSG_DATA_2 (8 bits) H'F912 MD12[3] MSG_DATA_3 (8 bits) H'F913 MD12[4] MSG_DATA_4 (8 bits) H'F914 MD12[5] MSG_DATA_5 (8 bits) H'F915 MD12[6] MSG_DATA_6 (8 bits) H'F916 MD12[7] MSG_DATA_7 (8 bits) H'F917 MD12[8] MSG_DATA_8 (8 bits) H'F918 MD13[1] MSG_DATA_1 (8 bits) H'F919 MD13[2] MSG_DATA_2 (8 bits) H'F91A MD13[3] MSG_DATA_3 (8 bits) H'F91B MD13[4] MSG_DATA_4 (8 bits) H'F91C MD13[5] MSG_DATA_5 (8 bits) H'F91D MD13[6] MSG_DATA_6 (8 bits) H'F91E MD13[7] MSG_DATA_7 (8 bits) H'F91F MD13[8] MSG_DATA_8 (8 bits) H'F920 MD14[1] MSG_DATA_1 (8 bits) H'F921 MD14[2] MSG_DATA_2 (8 bits) H'F922 MD14[3] MSG_DATA_3 (8 bits) H'F923 MD14[4] MSG_DATA_4 (8 bits) H'F924 MD14[5] MSG_DATA_5 (8 bits) H'F925 MD14[6] MSG_DATA_6 (8 bits) H'F926 MD14[7] MSG_DATA_7 (8 bits) H'F927 MD14[8] MSG_DATA_8 (8 bits) H'F928 MD15[1] MSG_DATA_1 (8 bits) H'F929 MD15[2] MSG_DATA_2 (8 bits) H'F92A MD15[3] MSG_DATA_3 (8 bits) H'F92B MD15[4] MSG_DATA_4 (8 bits) H'F92C MD15[5] MSG_DATA_5 (8 bits) H'F92D MD15[6] MSG_DATA_6 (8 bits) H'F92E MD15[7] MSG_DATA_7 (8 bits) H'F92F MD15[8] MSG_DATA_8 (8 bits) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Bit 6 Appendix B Internal I/O Register Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name Data Bus Width HCAN 8/16 Page 871 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Address Register Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 H'FC00 PWCR1 -- -- IE CMF CST CKS2 CKS1 CKS0 H'FC02 PWOCR1 OE1H OE1G OE1F OE1E OE1D OE1C OE1B OE1A OPS1B OPS1A H'FC04 PWPR1 OPS1H OPS1G OPS1F OPS1E OPS1D OPS1C H'FC06 PWCYR1 -- -- -- -- -- -- H'FC08 PWBFR1A -- -- -- OTS -- -- DT9 DT8 DT6 DT5 DT4 DT3 DT2 DT1 DT0 -- -- OTS -- -- DT9 DT8 DT6 DT5 DT4 DT3 DT2 DT1 DT0 DT7 H'FC0A PWBFR1C -- DT7 H'FC0C PWBFR1E -- DT7 H'FC0E PWBFR1G -- DT7 -- -- OTS -- -- DT9 DT8 DT6 DT5 DT4 DT3 DT2 DT1 DT0 -- -- OTS -- -- DT9 DT8 DT6 DT5 DT4 DT3 DT2 DT1 DT0 PWCR2 -- -- IE CMF CST CKS2 CKS1 CKS0 H'FC12 PWOCR2 OE2H OE2G OE2F OE2E OE2D OE2C OE2B OE2A OPS2B OPS2A H'FC14 PWPR2 OPS2H OPS2G OPS2F OPS2E OPS2D OPS2C H'FC16 PWCYR2 -- -- -- -- -- -- H'FC18 PWBFR2A -- -- -- TDS -- -- DT9 DT8 DT6 DT5 DT4 DT3 DT2 DT1 DT0 -- -- TDS -- -- DT9 DT8 DT6 DT5 DT4 DT3 DT2 DT1 DT0 H'FC1A PWBFR2B -- DT7 H'FC1C PWBFR2C -- DT7 H'FC1E PWBFR2D -- DT7 Motor control PWM timer 1 8 Motor control PWM timer 2 8 16 -- -- TDS -- -- DT9 DT8 DT6 DT5 DT4 DT3 DT2 DT1 DT0 -- -- TDS -- -- DT9 DT8 DT6 DT5 DT4 DT3 DT2 DT1 DT0 H'FC20 PHDDR PH7DDR PH6DDR PH5DDR PH4DDR PH3DDR PH2DDR PH1DDR PH0DDR H'FC21 PJDDR PJ7DDR PJ6DDR PJ5DDR PJ4DDR PJ3DDR PJ2DDR PJ1DDR PJ0DDR H'FC22 PKDDR PK7DDR PK6DDR -- -- -- -- -- -- H'FC24 PHDR PH7DR PH6DR PH5DR PH4DR PH3DR PH2DR PH1DR PH0DR H'FC25 PJDR PJ7DR PJ6DR PJ5DR PJ4DR PJ3DR PJ2DR PJ1DR PJ0DR H'FC26 PKDR PK7DR PK6DR -- -- -- -- -- -- H'FC28 PORTH PH7 PH6 PH5 PH4 PH3 PH2 PH1 PH0 H'FC29 PORTJ PJ7 PJ6 PJ5 PJ4 PJ3 PJ2 PJ1 PJ0 Page 872 of 1126 Data Bus Width 16 H'FC10 DT7 Module Name PORT 8 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Address Register Name Bit 7 Bit 6 Appendix B Internal I/O Register Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name Data Bus Width H'FC2A PORTK PK7 PK6 -- -- -- -- -- -- PORT 8 H'FC30 LPCR DTS1 DTS0 CMX -- SGS3 SGS2 SGS1 SGS0 LCDC 8 H'FC31 LCR -- PSW ACT DISP CKS3 CKS2 CKS1 CKS0 H'FC32 LCR2 LCDAB -- -- -- -- -- -- -- MSTPD6 -- -- -- -- -- -- SYSTEM 8 SYSTEM 8 PBC 32 H'FC40 to LCDRAM H'FC53 H'FC60 MSTPCRD MSTPD7 H'FC62 Reserved H'FC64 Reserved H'FDD8 Reserved H'FDD9 Reserved H'FDDA Reserved H'FDDB Reserved H'FDDC Reserved H'FDDD Reserved H'FDDE Reserved H'FDE4 SBYCR SSBY STS2 STS1 STS0 OPE -- -- -- H'FDE5 SYSCR MACS -- INTM1 INTM0 NMIEG -- -- RAME H'FDE6 SCKCR PSTOP -- -- -- STCS SCK2 SCK1 SCK0 H'FDE7 MDCR -- -- -- -- -- MDS2 MDS1 MDS0 H'FDE8 MSTPCRA MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 H'FDE9 MSTPCRB MSTPB7 MSTPB6 -- MSTPB4 MSTPB3 MSTPB2 MSTPB1 MSTPB0 H'FDEA MSTPCRC MSTPC7 -- MSTPC5 MSTPC4 MSTPC3 MSTPC2 MSTPC1 MSTPC0 H'FDEB PFCR -- -- -- -- AE3 AE2 AE1 AE0 H'FDEC LPWRCR DTON LSON NESEL SUBSTP RFCUT -- STC1 STC0 H'FE00 BARA -- -- -- -- -- -- -- -- H'FE01 BAA23 BAA22 BAA21 BAA20 BAA19 BAA18 BAA17 BAA16 H'FE02 BAA15 BAA14 BAA13 BAA12 BAA11 BAA10 BAA9 BAA8 H'FE03 BAA7 BAA6 BAA5 BAA4 BAA3 BAA2 BAA1 BAA0 H'FE04 -- -- -- -- -- -- -- -- H'FE05 BARB BAA23 BAA22 BAA21 BAA20 BAA19 BAA18 BAA17 BAA16 H'FE06 BAA15 BAA14 BAA13 BAA12 BAA11 BAA10 BAA9 BAA8 H'FE07 BAA7 BAA6 BAA5 BAA4 BAA3 BAA2 BAA1 BAA0 H'FE08 BCRA CMFA CDA BAMRA2 BAMRA1 BAMRA0 CSELA1 CSELA0 BIEA H'FE09 BCRB CMFB CDB BAMRB2 BAMRB1 BAMRB0 CSELB1 CSELB0 BIEB H'FE12 ISCRH -- -- -- -- IRQ5SCB IRQ5SCA IRQ4SCB IRQ4SCA H'FE13 ISCRL IRQ3SCB IRQ3SCA IRQ2SCB IRQ2SCA IRQ1SCB IRQ1SCA IRQ0SCB IRQ0SCA H'FE14 IER -- -- IRQ5E IRQ4E IRQ3E IRQ2E IRQ1E IRQ0E H'FE15 ISR -- -- IRQ5F IRQ4F IRQ3F IRQ2F IRQ1F IRQ0F REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 8 INT 8 Page 873 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Address Register Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 0 Module Name Data Bus Width H'FE16 DTCERA DTCEA7 DTCEA6 DTCEA5 DTCEA4 DTCEA3 DTCEA2 H'FE17 DTCERB DTCEB7 DTCEB6 DTCEB5 DTCEB4 DTCEB3 DTCEB2 DTCEA1 DTCEA0 DTC 8 DTCEB1 DTCEB0 H'FE18 DTCERC DTCEC7 DTCEC6 DTCEC5 DTCEC4 DTCEC3 DTCEC2 DTCEC1 DTCEC0 H'FE19 DTCERD DTCED7 DTCED6 DTCED5 DTCED4 DTCED3 DTCED2 DTCED1 DTCED0 H'FE1A DTCERE DTCEE7 DTCEE6 DTCEE5 DTCEE4 DTCEE3 DTCEE2 DTCEE1 DTCEE0 H'FE1B DTCERF DTCEF7 DTCEF6 DTCEF5 DTCEF4 DTCEF3 DTCEF2 DTCEF1 DTCEF0 H'FE1C DTCERG DTCEG7 DTCEG6 DTCEG5 DTCEG4 DTCEG3 DTCEG2 DTCEG1 DTCEG0 H'FE1E DTCERI DTCEI7 DTCEI6 DTCEI5 DTCEI4 DTCEI3 DTCEI2 DTCEI1 DTCEI0 H'FE1F DTVECR SWDTE DTVEC6 DTVEC5 DTVEC4 DTVEC3 DTVEC2 DTVEC1 DTVEC0 H'FE26 PCR G3CMS1 G3CMS0 G2CMS1 G2CMS0 G1CMS1 G1CMS0 G0CMS1 G0CMS0 H'FE27 PMR G3INV G2INV G1INV G0INV G3NOV G2NOV G1NOV G0NOV PPG 8 H'FE28 NDERH NDER15 NDER14 NDER13 NDER12 NDER11 NDER10 NDER9 NDER8 H'FE29 NDERL NDER7 NDER6 NDER5 NDER4 NDER3 NDER2 NDER1 NDER0 H'FE2A PODRH POD15 POD14 POD13 POD12 POD11 POD10 POD9 POD8 H'FE2B PODRL POD7 POD6 POD5 POD4 POD3 POD2 POD1 POD0 H'FE2C NDRH NDR15 NDR14 NDR13 NDR12 NDR11 NDR10 NDR9 NDR8 H'FE2D NDRL NDR7 NDR6 NDR5 NDR4 NDR3 NDR2 NDR1 NDR0 H'FE2E NDRH -- -- -- -- NDR11 NDR10 NDR9 NDR8 H'FE2F NDRL -- -- -- -- NDR3 NDR2 NDR1 NDR0 PORT 8 Bit 1 H'FE30 P1DDR P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR H'FE30 P2DDR P27DDR P26DDR P25DDR P24DDR P23DDR P22DDR P21DDR P20DDR H'FE32 P3DDR P37DDR P36DDR P35DDR P34DDR P33DDR P32DDR P31DDR P30DDR H'FE34 P5DDR -- -- -- -- -- P52DDR P51DDR P50DDR H'FE39 PADDR PA7DDR PA6DDR PA5DDR PA4DDR PA3DDR PA2DDR PA1DDR PA0DDR H'FE3A PBDDR PB7DDR PB6DDR PB5DDR PB4DDR PB3DDR PB2DDR PB1DDR PB0DDR H'FE3B PCDDR PC7DDR PC6DDR PC5DDR PC4DDR PC3DDR PC2DDR PC1DDR PC0DDR H'FE3C PDDDR PD7DDR PD6DDR PD5DDR PD4DDR PD3DDR PD2DDR PD1DDR PD0DDR H'FE3D PEDDR PE7DDR PE6DDR PE5DDR PE4DDR PE3DDR PE2DDR PE1DDR PE0DDR H'FE3E PFDDR PF7DDR PF6DDR PF5DDR PF4DDR PF3DDR PF2DDR -- PF0DDR H'FE40 PAPCR PA7PCR PA6PCR PA5PCR PA4PCR PA3PCR PA2PCR PA1PCR PA0PCR H'FE41 PBPCR PB7PCR PB6PCR PB5PCR PB4PCR PB3PCR PB2PCR PB1PCR PB0PCR H'FE42 PCPCR PC7PCR PC6PCR PC5PCR PC4PCR PC3PCR PC2PCR PC1PCR PC0PCR H'FE43 PDPCR PD7PCR PD6PCR PD5PCR PD4PCR PD3PCR PD2PCR PD1PCR PD0PCR H'FE44 PEPCR PE7PCR PE6PCR PE5PCR PE4PCR PE3PCR PE2PCR PE1PCR PE0PCR H'FE46 P3ODR P37ODR P36ODR P35ODR P34ODR P33ODR P32ODR P31ODR P30ODR H'FE47 PAODR PA7ODR PA6ODR PA5ODR PA4ODR PA3ODR PA2ODR PA1ODR PA0ODR H'FE48 PBODR PB7ODR PB6ODR PB5ODR PB4ODR PB3ODR PB2ODR PB1ODR PB0ODR H'FE49 PCODR PC7ODR PC6ODR PC5ODR PC4ODR PC3ODR PC2ODR PC1ODR PC0ODR Page 874 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Address Register Name Appendix B Internal I/O Register Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name Data Bus Width TPU3 8/16 TPU4 8/16 TPU5 8/16 TPU All 8 H'FE80 TCR3 CCLR2 CCLR1 CCLR0 CKEG1 CKEG0 TPSC2 TPSC1 TPSC0 H'FE81 TMDR3 -- -- BFB BFA MD3 MD2 MD1 MD0 H'FE82 TIOR3H IOB3 IOB2 IOB1 IOB0 IOA3 IOA2 IOA1 IOA0 H'FE83 TIOR3L IOD3 IOD2 IOD1 IOD0 IOC3 IOC2 IOC1 IOC0 H'FE84 TIER3 TTGE -- -- TCIEV TGIED TGIEC TGIEB TGIEA H'FE85 TSR3 -- -- -- TCFV TGFD TGFC TGFB TGFA H'FE86 TCNT3 H'FE87 H'FE88 TGR3A H'FE89 H'FE8A TGR3B H'FE8B H'FE8C TGR3C H'FE8D H'FE8E TGR3D H'FE8F H'FE90 TCR4 -- CCLR1 CCLR0 CKEG1 CKEG0 TPSC2 TPSC1 TPSC0 H'FE91 TMDR4 -- -- -- -- MD3 MD2 MD1 MD0 H'FE92 TIOR4 IOB3 IOB2 IOB1 IOB0 IOA3 IOA2 IOA1 IOA0 H'FE94 TIER4 TTGE -- TCIEU TCIEV -- -- TGIEB TGIEA H'FE95 TSR4 TCFD -- TCFU TCFV -- -- TGFB TGFA H'FE96 TCNT4 H'FE97 H'FE98 TGR4A H'FE99 H'FE9A TGR4B H'FE9B H'FEA0 TCR5 -- CCLR1 CCLR0 CKEG1 CKEG0 TPSC2 TPSC1 TPSC0 H'FEA1 TMDR5 -- -- -- -- MD3 MD2 MD1 MD0 H'FEA2 TIOR5 IOB3 IOB2 IOB1 IOB0 IOA3 IOA2 IOA1 IOA0 H'FEA4 TIER5 TTGE -- TCIEU TCIEV -- -- TGIEB TGIEA H'FEA5 TSR5 TCFD -- TCFU TCFV -- -- TGFB TGFA H'FEA6 TCNT5 H'FEA7 H'FEA8 TGR5A H'FEA9 H'FEAA TGR5B H'FEAB H'FEB0 TSTR -- -- CST5 CST4 CST3 CST2 CST1 CST0 H'FEB1 TSYR -- -- SYNC5 SYNC4 SYNC3 SYNC2 SYNC1 SYNC0 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 875 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Address Register Name Bit 7 Bit 6 Bit 5 Bit 4 H'FEC0 IPRA -- IPR6 IPR5 IPR4 -- IPR2 H'FEC1 IPRB -- IPR6 IPR5 IPR4 -- IPR2 H'FEC2 IPRC -- -- -- -- -- IPR2 IPR1 IPR0 H'FEC3 IPRD -- IPR6 IPR5 IPR4 -- -- -- -- Bit 3 Bit 2 Bit 0 Module Name Data Bus Width IPR1 IPR0 INT 8 IPR1 IPR0 (*: H8S/2648, H8S/2648R, H8S/2647) Bit 1 H'FEC4 IPRE -- IPR6 IPR5 IPR4 -- IPR2 IPR1 IPR0 H'FEC5 IPRF -- IPR6 IPR5 IPR4 -- IPR2 IPR1 IPR0 H'FEC6 IPRG -- IPR6 IPR5 IPR4 -- IPR2 IPR1 IPR0 H'FEC7 IPRH -- IPR6 IPR5 IPR4 -- IPR2 IPR1 IPR0 H'FEC9 IPRJ -- -- -- -- -- IPR2 IPR1 IPR0 H'FECA IPRK -- IPR6 IPR5 IPR4 -- IPR2* IPR1* IPR0* H'FECC IPRM -- IPR6 IPR5 IPR4 -- IPR2 IPR1 IPR0 H'FECE reserved H'FED0 ABWCR ABW7 ABW6 ABW5 ABW4 ABW3 ABW2 ABW1 ABW0 H'FED1 ASTCR AST7 AST6 AST5 AST4 AST3 AST2 AST1 AST0 Bus controller 8 H'FED2 WCRH W71 W70 W61 W60 W51 W50 W41 W40 H'FED3 WCRL W31 W30 W21 W20 W11 W10 W01 W00 H'FED4 BCRH ICIS1 ICIS0 BRSTRM BRSTS1 BRSTS0 -- -- -- H'FED5 BCRL -- -- -- -- -- -- WDBE WAITE H'FEDB RAMER -- -- -- -- RAMS RAM2 RAM1 RAM0 ROM 8 H'FF00 P1DR P17DR P16DR P15DR P14DR P13DR P12DR P11DR P10DR PORT 8 H'FF01 P2DR P27DR P26DR P25DR P24DR P23DR P22DR P21DR P20DR H'FF02 P3DR P37DR P36DR P35DR P34DR P33DR P32DR P31DR P30DR H'FF04 P5DR -- -- -- -- -- P52DR P51DR P50DR H'FF09 PADR PA7DR PA6DR PA5DR PA4DR PA3DR PA2DR PA1DR PA0DR H'FF0A PBDR PB7DR PB6DR PB5DR PB4DR PB3DR PB2DR PB1DR PB0DR H'FF0B PCDR PC7DR PC6DR PC5DR PC4DR PC3DR PC2DR PC1DR PC0DR H'FF0C PDDR PD7DR PD6DR PD5DR PD4DR PD3DR PD2DR PD1DR PD0DR H'FF0D PEDR PE7DR PE6DR PE5DR PE4DR PE3DR PE2DR PE1DR PE0DR H'FF0E PFDR PF7DR PF6DR PF5DR PF4DR PF3DR PF2DR -- PF0DR Page 876 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Address Register Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 2 Bit 1 Bit 0 Module Name Data Bus Width H'FF10 TCR0 CCLR2 CCLR1 CCLR0 CKEG1 H'FF11 TMDR0 -- -- BFB BFA CKEG0 TPSC2 TPSC1 TPSC0 TPU0 8/16 MD3 MD2 MD1 MD0 H'FF12 TIOR0H IOB3 IOB2 IOB1 IOB0 H'FF13 TIOR0L IOD3 IOD2 IOD1 IOD0 IOA3 IOA2 IOA1 IOA0 IOC3 IOC2 IOC1 H'FF14 TIER0 TTGE -- -- IOC0 TCIEV TGIED TGIEC TGIEB H'FF15 TSR0 -- -- TGIEA -- TCFV TGFD TGFC TGFB H'FF16 TCNT0 TGFA TPU1 8/16 TPU2 8/16 Bit 3 H'FF17 H'FF18 TGR0A H'FF19 H'FF1A TGR0B H'FF1B H'FF1C TGR0C H'FF1D H'FF1E TGR0D H'FF1F H'FF20 TCR1 -- CCLR1 CCLR0 CKEG1 CKEG0 TPSC2 TPSC1 TPSC0 H'FF21 TMDR1 -- -- -- -- MD3 MD2 MD1 MD0 H'FF22 TIOR1 IOB3 IOB2 IOB1 IOB0 IOA3 IOA2 IOA1 IOA0 H'FF24 TIER1 TTGE -- TCIEU TCIEV -- -- TGIEB TGIEA H'FF25 TSR1 TCFD -- TCFU TCFV -- -- TGFB TGFA H'FF26 TNCT1 H'FF27 H'FF28 TGR1A H'FF29 H'FF2A TGR1B H'FF2B H'FF30 TCR2 -- CCLR1 CCLR0 CKEG1 CKEG0 TPSC2 TPSC1 TPSC0 H'FF31 TMDR2 -- -- -- -- MD3 MD2 MD1 MD0 H'FF32 TIOR2 IOB3 IOB2 IOB1 IOB0 IOA3 IOA2 IOA1 IOA0 H'FF34 TIER2 TTGE -- TCIEU TCIEV -- -- TGIEB TGIEA H'FF35 TSR2 TCFD -- TCFU TCFV -- -- TGFB TGFA H'FF36 TCNT2 H'FF37 H'FF38 TGR2A H'FF39 H'FF3A TGR2B H'FF3B REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 877 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Address Register Name H'FF74 TCSR0 (read/write) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name Data Bus Width OVF WT/IT TME -- -- CKS2 CKS1 CKS0 WDT 8 -- -- -- -- -- -- -- -- RSTE -- -- -- -- -- -- H'FF75 (read) TCNT0 H'FF76 -- H'FF77 RSTCSR0 WOVF H'FF78 SMR0 C/A CHR PE O/E STOP MP CKS1 CKS0 SMR0 GM BLK PE O/E BCP1 BCP0 CKS1 CKS0 TIE RIE TE RE MPIE TEIE CKE1 CKE0 H'FF79 BRR0 H'FF7A SCR0 H'FF7B TDR0 H'FF7C SSR0 TDRE RDRF ORER FER PER TEND MPB MPBT SSR0 TDRE RDRF ORER ERS PER TEND MPB MPBT SMIF H'FF7D RDR0 H'FF7E SCMR0 -- -- -- -- SDIR SINV -- H'FF80 SMR1 C/A CHR PE O/E STOP MP CKS1 CKS0 SMR1 GM BLK PE O/E BCP1 BCP0 CKS1 CKS0 TIE RIE TE RE MPIE TEIE CKE1 CKE0 H'FF81 BRR1 H'FF82 SCR1 H'FF83 TDR1 H'FF84 SSR1 TDRE RDRF ORER FER PER TEND MPB MPBT SSR1 TDRE RDRF ORER ERS PER TEND MPB MPBT -- -- -- -- SDIR SINV -- SMIF H'FF85 RDR1 H'FF86 SCMR1 Page 878 of 1126 SCI0/ 8 smart card interface 0 SCI1/ 8 smart card interface 1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Address Register Name Bit 7 H'FF88 SMR2 H'FF88 SMR2 H'FF89 BRR2 Appendix B Internal I/O Register Bit 6 Bit 5 Bit 4 Bit 3 C/A CHR GM BLK TIE RIE Bit 2 Bit 1 Bit 0 PE O/E STOP MP CKS1 CKS0 PE O/E BCP1 BCP0 CKS1 CKS0 TE RE MPIE TEIE CKE1 CKE0 H'FF8A SCR2 H'FF8B TDR2 H'FF8C SSR2 TDRE RDRF ORER FER PER TEND MPB MPBT H'FF8C SSR2 TDRE RDRF ORER ERS PER TEND MPB MPBT H'FF8D SDR2 H'FF8E SCMR2 -- -- -- -- SDIR SINV -- SMIF H'FF90 ADDRAH AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 H'FF91 ADDRAL AD1 AD0 -- -- -- -- -- -- H'FF92 ADDRBH AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 H'FF93 ADDRBL AD1 AD0 -- -- -- -- -- -- H'FF94 ADDRCH AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 H'FF95 ADDRCL AD1 AD0 -- -- -- -- -- -- H'FF96 ADDRDH AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 H'FF97 ADDRDL AD1 AD0 -- -- -- -- -- -- H'FF98 ADCSR ADF ADIE ADST SCAN CH3 CH2 CH1 CH0 H'FF99 ADCR TRGS1 TRGS0 -- -- CKS1 CKS0 -- -- OVF WT/IT TME PSS RST/NMI CKS2 CKS1 H'FFA2 TCSR1 (read/write) Data Bus Width SCI2/ smart card interface 2 (H8S/2648, H8S/2648R, H8S/2647) A/D 8 CKS0 WDT1 8 ROM 8 PORT 8 H'FFA3 (read) TCNT1 H'FFA8 FLMCR1 FWE SWE ESU PSU EV PV E P H'FFA9 FLMCR2 FLER -- -- -- -- -- -- -- H'FFAA EBR1 EB7 EB6 EB5 EB4 EB3 EB2 EB1 EB0 H'FFAB EBR2 -- -- -- -- -- -- EB9 EB8 H'FFAC FLPWCR PDWND -- -- -- -- -- -- -- H'FFB0 PORT1 P17 P16 P15 P14 P13 P12 P11 P10 H'FFB1 PORT2 P27 P26 P25 P24 P23 P22 P21 P20 H'FFB2 PORT3 P37 P36 P35 P34 P33 P32 P31 P30 H'FFB3 PORT4 P47 P46 P45 P44 P43 P42 P41 P40 H'FFB4 PORT5 -- -- -- -- -- P52 P51 P50 H'FFB8 PORT9 P97 P96 P95 P94 P93 P92 P91 P90 H'FFB9 PORTA PA7 PA6 PA5 PA4 PA3 PA2 PA1 PA0 H'FFBA PORTB PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0 H'FFBB PORTC PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0 H'FFBC PORTD PD7 PD6 PD5 PD4 PD3 PD2 PD1 PD0 H'FFBD PORTE PE7 PE6 PE5 PE4 PE3 PE2 PE1 PE0 H'FFBE PORTF PF7 PF6 PF5 PF4 PF3 PF2 -- PF0 Note: * These registers are in the on-chip RAM area. When the DTC is accessed as register information, the data-bus width becomes 32 bits and is otherwise 8 or 16 bits. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Module Name Page 879 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register B.2 Functions Register acronym Register name Address to which the register is mapped DACR--D/A Control Register H'FFFA Name of on-chip supporting module D/A Converter Bit numbers Bit Initial bit values 7 6 5 4 3 2 1 0 DAOE1 DAOE0 DAE -- -- -- -- -- Initial value 0 0 0 1 1 1 1 1 Read/Write R/W R/W R/W -- -- -- -- -- Names of the bits. Dashes (--) indicate reserved bits. D/A Enabled DAOE1 DAOE0 Possible types of access R Read only W Write only 0 DAE Conversion result 0 * Channel 0 and 1 D/A conversion disabled 1 0 Channel 0 D/A conversion enabled Full name of bit Channel 1 D/A conversion disabled R/W Read and write 1 0 1 Channel 0 and 1 D/A conversion enabled 0 Channel 0 D/A conversion disabled Channel 1 D/A conversion enabled 1 1 Channel 0 and 1 D/A conversion enabled * Channel 0 and 1 D/A conversion enabled Descriptions of bit settings D/A Output Enable 0 0 Analog output DA0 disabled 1 Channel 0 D/A conversion enabled. Analog output DA0 enabled D/A Output Enable 1 Page 880 of 1126 0 Analog output DA1 disabled 1 Channel 1 D/A conversion enabled. Analog output DA1 enabled REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MRA--DTC Mode Register A Bit Initial value Read/Write H'EBC0-H'EFBF DTC 7 6 5 4 3 2 1 0 SM1 SM0 DM1 DM0 MD1 MD0 DTS Sz Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- DTC Data Transfer Size 0 Byte-size transfer 1 Word-size transfer DTC Transfer Mode Select 0 Destination side is repeat area or block area 1 Source side is repeat area or block area DTC Mode 0 0 Normal mode 1 Repeat mode 1 0 Block transfer mode 1 -- Destination Address Mode 0 -- DAR is fixed 1 0 DAR is incremented after a transfer (by +1 when Sz = 0; by +2 when Sz = 1) 1 DAR is decremented after a transfer (by -1 when Sz = 0; by -2 when Sz = 1) Source Address Mode 0 -- SAR is fixed 1 0 SAR is incremented after a transfer (by +1 when Sz = 0; by +2 when Sz = 1) 1 SAR is decremented after a transfer (by -1 when Sz = 0; by -2 when Sz = 1) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 881 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MRB--DTC Mode Register B DTC 7 6 5 4 3 2 1 0 CHNE DISEL -- -- -- -- -- -- Bit Initial value H'EBC0-H'EFBF Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined Read/Write -- -- -- -- -- -- -- -- DTC Interrupt Select 0 After a data transfer ends, the CPU interrupt is disabled unless the transfer counter is 0 1 After a data transfer ends, the CPU interrupt is enabled DTC Chain Transfer Enable 0 End of DTC data transfer 1 DTC chain transfer SAR--DTC Source Address Register Bit 23 22 21 20 19 H'EBC0-H'EFBF --- 4 3 DTC 2 1 0 --Initial value Read/Write Unde- Unde- Unde- Unde- Undefined fined fined fined fined -- -- -- -- -- ----- Unde- Unde- Unde- Unde- Undefined fined fined fined fined -- -- -- -- -- Specify DTC transfer data source address DAR--DTC Destination Address Register Bit 23 22 21 20 19 H'EBC0-H'EFBF --- 4 3 DTC 2 1 0 --Initial value Read/Write Unde- Unde- Unde- Unde- Undefined fined fined fined fined -- -- -- -- -- ----- Unde- Unde- Unde- Unde- Undefined fined fined fined fined -- -- -- -- -- Specify DTC transfer data destination address Page 882 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register CRA--DTC Transfer Count Register A Bit Initial value Read/Write 15 14 13 12 11 10 H'EBC0-H'EFBF 9 8 7 6 5 4 DTC 3 2 1 0 Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Undefined fined fined fined fined fined fined fined fined fined fined fined fined fined fined fined -- -- -- -- -- -- -- -- -- -- -- CRAH -- -- -- -- -- CRAL Specify the number of DTC data transfers CRB--DTC Transfer Count Register B Bit Initial value Read/Write 15 14 13 12 11 10 H'EBC0-H'EFBF 9 8 7 6 5 4 DTC 3 2 1 0 Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Undefined fined fined fined fined fined fined fined fined fined fined fined fined fined fined fined -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Specify the number of DTC block data transfers REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 883 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MCR--Master Control Register Bit H'F800 HCAN 7 6 5 4 3 2 1 0 MCR7 -- MCR5 -- -- MCR2 MCR1 MCR0 Initial value 0 0 0 0 0 0 0 1 Read/Write R/W -- R/W -- -- R/W R/W R/W Reset Request 0 Normal operating mode (MCR0 = 0 and GSR3 = 0) [Setting condition] When 0 is written after an HCAN reset 1 HCAN reset mode transition request Halt Request 0 HCAN normal operating mode 1 HCAN halt mode transition request Message Transmission Method 0 Transmission order determined by message identifier priority 1 Transmission order determined by mailbox (buffer) number priority (TXPR1 > TXPR15) HCAN Sleep Mode 0 HCAN sleep mode released 1 Transition to HCAN sleep mode enabled HCAN Sleep Mode Release 0 HCAN sleep mode release by CAN bus operation disabled 1 HCAN sleep mode release by CAN bus operation enabled Page 884 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register GSR--General Status Register Bit H'F801 HCAN 7 6 5 4 3 2 1 0 -- -- -- -- GSR3 GSR2 GSR1 GSR0 Initial value 0 0 0 0 1 1 0 0 Read/Write -- -- -- -- R R R R Bus Off Flag 0 [Reset condition] Recovery from bus off state 1 When TEC 256 (bus off state) Transmit/Receive Warning Flag 0 [Reset condition] When TEC < 96 and REC < 96 or TEC 256 1 When TEC 96 or REC 96 Message Transmission Status Flag 0 Message transmission period 1 [Reset condition] Idle period Reset Status Bit 0 Normal operating state [Setting condition] After an HCAN internal reset 1 Configuration mode [Reset condition] MCR0 reset mode and sleep mode REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 885 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register BCR--Bit Configuration Register Bit H'F802 HCAN 15 14 13 12 11 10 9 8 BCR7 BCR6 BCR5 BCR4 BCR3 BCR2 BCR1 BCR0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Resynchronization Jump Width 0 1 Baud Rate Prescale 0 Bit synchronization width = 1 time quantum 0 0 0 0 0 0 2 x system clock 1 Bit synchronization width = 2 time quanta 0 0 0 0 0 1 4 x system clock 0 Bit synchronization width = 3 time quanta 0 .. 0 .. 0 .. 0 .. 1 .. 0 6 x system clock .. .. 1 1 1 1 1 1 128 x system clock 1 Bit synchronization width = 4 time quanta Bit 7 6 5 4 3 2 1 0 BCR15 BCR14 BCR13 BCR12 BCR11 BCR10 BCR9 BCR8 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Time Segment 2 0 0 1 1 0 1 Time Segment 1 0 Setting prohibited 0 0 0 0 Setting prohibited 1 TSEG2 = 2 time quanta 0 0 0 1 Setting prohibited 0 TSEG2 = 3 time quanta 0 0 1 0 Setting prohibited 1 TSEG2 = 4 time quanta 0 0 1 1 TSEG1 = 4 time quanta 0 TSEG2 = 5 time quanta 1 TSEG2 = 6 time quanta 0 .. 1 .. 0 .. 0 TSEG1 = 5 time quanta .. .. 0 TSEG2 = 7 time quanta 1 1 1 1 TSEG1 = 16 time quanta 1 TSEG2 = 8 time quanta Bit Sample Point 0 Bit sampling at one point (end of time segment 1) 1 Bit sampling at three points (end of time segment 1 and preceding and following time quantum) Page 886 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MBCR--Mailbox Configuration Register Bit 15 14 H'F804 13 12 HCAN 10 11 9 8 MBCR1 -- Initial value 0 0 0 0 0 0 0 1 Read/Write R/W R/W R/W R/W R/W R/W R/W -- 7 6 5 4 3 2 1 0 MBCR7 Bit MBCR6 MBCR5 MBCR4 MBCR3 MBCR2 MBCR15 MBCR14 MBCR13 MBCR12 MBCR11 MBCR10 MBCR9 MBCR8 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Mailbox Setting Register 0 Corresponding mailbox is set for transmission 1 Corresponding mailbox is set for reception TXPR--Transmit Wait Register Bit H'F806 HCAN 15 14 13 12 11 10 9 8 TXPR7 TXPR6 TXPR5 TXPR4 TXPR3 TXPR2 TXPR1 -- Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W -- 7 6 5 4 3 2 Bit TXPR15 TXPR14 TXPR13 TXPR12 TXPR11 TXPR10 1 0 TXPR9 TXPR8 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Transmit Wait Register REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 0 Transmit message idle state in corresponding mailbox [Clearing condition] Message transmission completion and cancellation completion 1 Transmit message transmit wait in corresponding mailbox (CAN bus arbitration) Page 887 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TXCR--Transmit Wait Cancel Register Bit H'F808 HCAN 15 14 13 12 11 10 9 8 TXCR7 TXCR6 TXCR5 TXCR4 TXCR3 TXCR2 TXCR1 -- Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W -- 7 6 5 4 3 2 1 0 Bit TXCR15 TXCR14 TXCR13 TXCR12 TXCR11 TXCR10 TXCR9 TXCR8 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Transmit Wait Cancel Register 0 Transmit message cancellation idle state in corresponding mailbox [Clearing condition] Completion of TXPR clearing (when transmit message is canceled normally) 1 TXPR cleared for corresponding mailbox (transmit message cancellation) TXACK--Transmit Acknowledge Register Bit 15 14 13 H'F80A 12 11 HCAN 10 9 8 TXACK7 TXACK6 TXACK5 TXACK4 TXACK3 TXACK2 TXACK1 -- Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* -- 7 6 5 4 3 2 1 0 Bit TXACK15 TXACK14 TXACK13 TXACK12 TXACK11 TXACK10 TXACK9 TXACK8 Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Transmit Acknowledge Register 0 [Clearing condition] Writing 1 1 Completion of message transmission for corresponding mailbox Note: * Only 1 can be written, to clear the flag. Page 888 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register ABACK--Abort Acknowledge Register Bit 15 ABACK7 14 H'F80C 13 12 11 HCAN 10 9 ABACK6 ABACK5 ABACK4 ABACK3 ABACK2 ABACK1 8 -- Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/(W)* R/(W* R/(W)* R/(W)* R/(W)* R/(W)* -- 7 6 5 4 3 2 1 0 Bit ABACK15 ABACK14 ABACK13 ABACK12 ABACK11 ABACK10 ABACK9 ABACK8 Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Abort Acknowledge Register 0 [Clearing condition] Writing 1 1 Completion of transmit message cancellation for corresponding mailbox Note: * Only 1 can be written, to clear the flag. RXPR--Receive Complete Register Bit H'F80E HCAN 15 14 13 12 11 10 9 8 RXPR7 RXPR6 RXPR5 RXPR4 RXPR3 RXPR2 RXPR1 RXPR0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* 7 6 5 4 3 2 1 0 Bit RXPR15 RXPR14 RXPR13 RXPR12 RXPR11 RXPR10 RXPR9 RXPR8 Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Receive Complete Register 0 [Clearing condition] Writing 1 1 Completion of message (data frame or remote frame) reception in corresponding mailbox Note: * Only 1 can be written, to clear the flag. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 889 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register RFPR--Remote Request Register Bit H'F810 HCAN 15 14 13 12 11 10 9 8 RFPR7 RFPR6 RFPR5 RFPR4 RFPR3 RFPR2 RFPR1 RFPR0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* 7 6 5 4 3 2 1 0 Bit RFPR15 RFPR14 RFPR13 RFPR12 RFPR11 RFPR10 RFPR9 Initial value 0 0 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* RFPR8 0 0 0 0 R/(W)* R/(W)* R/(W)* R/(W)* Remote Request Register 0 [Clearing condition] Writing 1 1 Completion of remote frame reception in corresponding mailbox Note: * Only 1 can be written, to clear the flag. Page 890 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register IRR--Interrupt Register Bit H'F812 HCAN 15 14 13 12 11 10 9 8 IRR7 IRR6 IRR5 IRR4 IRR3 IRR2 IRR1 IRR0 Initial value 0 0 0 0 0 0 0 1 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Reset Interrupt Flag 0 [Clearing condition] Writing 1 1 Transition to hardware reset (HCAN module stop, software standby) [Setting condition] When reset processing is completed after hardware reset transition (HCAN module stop, software standby) Note: After canceling a reset or returning from hardware standby mode, the module stop bit is initialized yo 1. HCAN then enters a module-stopped state. Receive Message Interrupt Flag 0 [Clearing condition] Clearing of all bits in RXPR (receive complete register) in the mailbox, which enables the receive interrupt requests in MBIMR 1 Data frame or remote frame received and stored in mailbox [Setting conditions] When data frame or remote frame reception is completed, when corresponding MBIMR = 0 Remote Frame Request Interrupt Flag 0 [Clearing condition] Clearing of all bits in RFPR (remote request wait register) in the mailbox, which enables the receive interrupt requests in MBIMR 1 Remote frame received and stored in mailbox [Setting conditions] When remote frame reception is completed, when corresponding MBIMR = 0 Transmit Overload Warning Interrupt Flag 0 [Clearing condition] Writing 1 1 Error warning state caused by transmit error [Setting condition] When TEC 96 Receive Overload Warning Interrupt Flag 0 [Clearing condition] Writing 1 1 Error warning state caused by receive error [Setting condition] When REC 96 Bus Off Interrupt Flag 0 1 [Clearing condition] Writing 1 Bus off state caused by transmit error [Setting condition] When TEC 256 Error Passive Interrupt Flag 0 [Clearing condition] Writing 1 1 Error passive state caused by transmit/receive error [Setting condition] When TEC 128 or REC 128 Overload Frame Interrupt Flag 0 [Clearing condition] Writing 1 1 Overload frame transmission [Setting conditions] When overload frame is transmitted Note: * Only 1 can be written, to clear the flag. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 891 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Bit 7 6 5 4 3 2 1 0 -- -- -- IRR12 -- -- IRR9 IRR8 Initial value 0 0 0 0 0 0 0 0 Read/Write -- -- -- R/(W)* -- -- R/(W)* R/(W)* Mailbox Empty Interrupt Flag 0 [Clearing condition] Writing 1 1 Transmit message has been transmitted or aborted, and new message can be stored [Setting condition] When TXPR (transmit wait register) is cleared by completion of transmission or completion of transmission abort Unread Interrupt Flag 0 [Clearing condition] Clearing of all bits in UMSR (unread message status register) 1 Unread message overwrite [Setting condition] When UMSR (unread message status register) is set Bus Operation Interrupt Flag 0 CAN bus idle state [Clearing condition] Writing 1 1 CAN bus operation in HCAN sleep mode [Setting condition] Bus operation (dominant bit detection) in HCAN sleep mode Note: * Only 1 can be written, to clear the flag. Page 892 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MBIMR--Mailbox Interrupt Mask Register Bit 15 14 13 H'F814 12 HCAN 11 10 9 8 MBIMR7 MBIMR6 MBIMR5 MBIMR4 MBIMR3 MBIMR2 MBIMR1 MBIMR0 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 Bit MBIMR15 MBIMR14 MBIMR13 MBIMR12 MBIMR11 MBIMR10 MBIMR9 MBIMR8 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Mailbox Interrupt Mask REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 0 [Transmitting] Interrupt request to CPU due to TXPR clearing [Receiving] Interrupt request to CPU due to RXPR setting 1 Interrupt requests to CPU disabled Page 893 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register IMR--Interrupt Mask Register H'F816 HCAN 15 14 13 12 11 10 9 8 IMR7 IMR6 IMR5 IMR4 IMR3 IMR2 IMR1 -- Initial value 1 1 1 1 1 1 1 0 Read/Write R/W R/W R/W R/W R/W R/W R/W -- Bit Receive Message Interrupt Mask 0 Message reception interrupt request to CPU by IRR1 enabled 1 Message reception interrupt request to CPU by IRR1 disabled Remote Frame Request Interrupt Mask 0 Remote frame reception interrupt request to CPU by IRR2 enabled 1 Remote frame reception interrupt request to CPU by IRR2 disabled Transmit Overload Warning Interrupt Mask 0 TEC error warning interrupt request to CPU by IRR3 enabled 1 TEC error warning interrupt request to CPU by IRR3 disabled Receive Overload Warning Interrupt Mask 0 REC error warning interrupt request to CPU by IRR4 enabled 1 REC error warning interrupt request to CPU by IRR4 disabled Error Passive Interrupt Mask 0 Error passive interrupt request to CPU by IRR5 enabled 1 Error passive interrupt request to CPU by IRR5 disabled Bus Off Interrupt Mask 0 Bus off interrupt request to CPU by IRR6 enabled 1 Bus off interrupt request to CPU by IRR6 disabled Overload Frame/Bus Off Recovery Interrupt Mask 0 Overload frame/bus off recovery interrupt request to CPU by IRR7 enabled 1 Overload frame/bus off recovery interrupt request to CPU by IRR7 disabled Page 894 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Bit Appendix B Internal I/O Register 7 6 5 4 3 2 1 0 -- -- -- IMR12 -- -- IMR9 IMR8 Initial value 1 1 1 1 1 1 1 1 Read/Write -- -- -- R/W -- -- R/W R/W Mailbox Empty Interrupt Mask 0 Mailbox empty interrupt request to CPU by IRR8 enabled 1 Mailbox empty interrupt request to CPU by IRR8 disabled Unread Interrupt Mask 0 Unread message overwrite interrupt request to CPU by IRR9 enabled 1 Unread message overwrite interrupt request to CPU by IRR9 disabled Bus Operation Interrupt Mask 0 Bus operation interrupt request to CPU by IRR12 enabled 1 Bus operation interrupt request to CPU by IRR12 disabled REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 895 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register REC--Receive Error Counter H'F818 HCAN Bit 7 6 5 4 3 2 1 0 Initial value 0 0 0 0 0 0 0 0 Read/Write R R R R R R R R TEC--Transmit Error Counter H'F819 HCAN Bit 7 6 5 4 3 2 1 0 Initial value 0 0 0 0 0 0 0 0 Read/Write R R R R R R R R UMSR--Unread Message Status Register Bit 15 UMSR7 14 13 H'F81A 12 11 HCAN 10 9 UMSR6 UMSR5 UMSR4 UMSR3 UMSR2 8 UMSR1 UMSR0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* 7 6 5 4 3 2 1 0 Bit UMSR15 UMSR14 UMSR13 UMSR12 UMSR11 UMSR10 UMSR9 UMSR8 Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Unread Message Status Flags 0 [Clearing condition] Writing 1 1 Unread receive message is overwritten by a new message [Setting condition] When a new message is received before RXPR is cleared (x = 15 to 0) Note: * Only 1 can be written, to clear the flag. Page 896 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register LAFML--Local Acceptance Filter Masks L LAFMH--Local Acceptance Filter Masks H Bit 15 LAFML7 14 13 LAFML6 LAFML5 H'F81C H'F81E 12 HCAN HCAN 11 LAFML4 LAFML3 10 LAFML2 9 8 LAFML1 LAFML0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 Bit LAFML15 LAFML14 LAFML13 LAFML12 LAFML11 LAFML10 LAFML9 LAFML8 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W 14 13 12 11 10 9 8 -- -- -- LAFMH 15 Bit LAFMH7 LAFMH6 LAFMH5 LAFMH1 LAFMH0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W -- -- -- R/W R/W 7 6 5 4 3 2 1 0 Bit LAFMH15 LAFMH14 LAFMH13 LAFMH12 LAFMH11 LAFMH10 LAFMH9 LAFMH8 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W LAFMH Bits 7 to 0 and 15 to 13-11-Bit Identifier Filter 0 Stored in RX0 (receive-only mailbox) depending on bit match between RX0 message identifier and receive message identifier (Care) 1 Stored in RX0 (receive-only mailbox) regardless of bit match between RX0 message identifier and receive message identifier (Don't Care) LAFMH Bits 9 and 8, LAFML bits 15 to 0-18-Bit Identifier Filter 0 Stored in RX0 (receive-only mailbox) depending on bit match between RX0 message identifier and receive message identifier (Care) 1 Stored in RX0 (receive-only mailbox) regardless of bit match between RX0 message identifier and receive message identifier (Don't Care) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 897 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC01--Message Control 01 MC02--Message Control 02 MC03--Message Control 03 MC04--Message Control 04 MC05--Message Control 05 MC06--Message Control 06 MC07--Message Control 07 MC08--Message Control 08 H'F820 H'F821 H'F822 H'F823 H'F824 H'F825 H'F826 H'F827 HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC01 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC02 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC03 Bit Initial value Read/Write Page 898 of 1126 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC04 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC05 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC06 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 899 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC07 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC08 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames Page 900 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC11--Message Control 11 MC12--Message Control 12 MC13--Message Control 13 MC14--Message Control 14 MC15--Message Control 15 MC16--Message Control 16 MC17--Message Control 17 MC18--Message Control 18 H'F828 H'F829 H'F82A H'F82B H'F82C H'F82D H'F82E H'F82F HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC11 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC12 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC13 Bit Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 R/W R/W R/W R/W R/W R/W R/W Page 901 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC14 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC15 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC16 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames Page 902 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC17 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC18 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 903 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC21--Message Control 21 MC22--Message Control 22 MC23--Message Control 23 MC24--Message Control 24 MC25--Message Control 25 MC26--Message Control 26 MC27--Message Control 27 MC28--Message Control 28 H'F830 H'F831 H'F832 H'F833 H'F834 H'F835 H'F836 H'F837 HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC21 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC22 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC23 Bit Initial value Read/Write Page 904 of 1126 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC24 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC25 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC26 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 905 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC27 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC28 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames Page 906 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC31--Message Control 31 MC32--Message Control 32 MC33--Message Control 33 MC34--Message Control 34 MC35--Message Control 35 MC36--Message Control 36 MC37--Message Control 37 MC38--Message Control 38 H'F838 H'F839 H'F83A H'F83B H'F83C H'F83D H'F83E H'F83F HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC31 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC32 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC33 Bit Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 R/W R/W R/W R/W R/W R/W R/W Page 907 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC34 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC35 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC36 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames Page 908 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC37 Bit 7 6 EXD_ID7 Initial value Read/Write 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC38 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 909 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC41--Message Control 41 MC42--Message Control 42 MC43--Message Control 43 MC44--Message Control 44 MC45--Message Control 45 MC46--Message Control 46 MC47--Message Control 47 MC48--Message Control 48 H'F840 H'F841 H'F842 H'F843 H'F844 H'F845 H'F846 H'F847 HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC41 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC42 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC43 Bit Initial value Read/Write Page 910 of 1126 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC44 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC45 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC46 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 911 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC47 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC48 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames Page 912 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC51--Message Control 51 MC52--Message Control 52 MC53--Message Control 53 MC54--Message Control 54 MC55--Message Control 55 MC56--Message Control 56 MC57--Message Control 57 MC58--Message Control 58 H'F848 H'F849 H'F84A H'F84B H'F84C H'F84D H'F84E H'F84F HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC51 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC52 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC53 Bit Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 R/W R/W R/W R/W R/W R/W R/W Page 913 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC54 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC55 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC56 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames Page 914 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC57 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC58 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 915 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC61--Message Control 61 MC62--Message Control 62 MC63--Message Control 63 MC64--Message Control 64 MC65--Message Control 65 MC66--Message Control 66 MC67--Message Control 67 MC68--Message Control 68 H'F850 H'F851 H'F852 H'F853 H'F854 H'F855 H'F856 H'F857 HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC61 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC62 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC63 Bit Initial value Read/Write Page 916 of 1126 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC64 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC65 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC66 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 917 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC67 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC68 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames Page 918 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC71--Message Control 71 MC72--Message Control 72 MC73--Message Control 73 MC74--Message Control 74 MC75--Message Control 75 MC76--Message Control 76 MC77--Message Control 77 MC78--Message Control 78 H'F858 H'F859 H'F85A H'F85B H'F85C H'F85D H'F85E H'F85F HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC71 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC72 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC73 Bit Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 R/W R/W R/W R/W R/W R/W R/W Page 919 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC74 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC75 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC76 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames Page 920 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC77 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC78 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 921 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC81--Message Control 81 MC82--Message Control 82 MC83--Message Control 83 MC84--Message Control 84 MC85--Message Control 85 MC86--Message Control 86 MC87--Message Control 87 MC88--Message Control 88 H'F860 H'F861 H'F862 H'F863 H'F864 H'F865 H'F866 H'F867 HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC81 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC82 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC83 Bit Initial value Read/Write Page 922 of 1126 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC84 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC85 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC86 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 923 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC87 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC88 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames Page 924 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC91--Message Control 91 MC92--Message Control 92 MC93--Message Control 93 MC94--Message Control 94 MC95--Message Control 95 MC96--Message Control 96 MC97--Message Control 97 MC98--Message Control 98 H'F868 H'F869 H'F86A H'F86B H'F86C H'F86D H'F86E H'F86F HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC91 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC92 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC93 Bit Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 R/W R/W R/W R/W R/W R/W R/W Page 925 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC94 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC95 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC96 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames Page 926 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC97 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC98 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 927 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC101--Message Control 101 MC102--Message Control 102 MC103--Message Control 103 MC104--Message Control 104 MC105--Message Control 105 MC106--Message Control 106 MC107--Message Control 107 MC108--Message Control 108 H'F870 H'F871 H'F872 H'F873 H'F874 H'F875 H'F876 H'F877 HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC101 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC102 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC103 Bit Initial value Read/Write Page 928 of 1126 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC104 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC105 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC106 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 929 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC107 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC108 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames Page 930 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC111--Message Control 111 MC112--Message Control 112 MC113--Message Control 113 MC114--Message Control 114 MC115--Message Control 115 MC116--Message Control 116 MC117--Message Control 117 MC118--Message Control 118 H'F878 H'F879 H'F87A H'F87B H'F87C H'F87D H'F87E H'F87F HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC111 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC112 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC113 Bit Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 R/W R/W R/W R/W R/W R/W R/W Page 931 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC114 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC115 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC116 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames Page 932 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC117 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC118 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 933 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC121--Message Control 121 MC122--Message Control 122 MC123--Message Control 123 MC124--Message Control 124 MC125--Message Control 125 MC126--Message Control 126 MC127--Message Control 127 MC128--Message Control 128 H'F880 H'F881 H'F882 H'F883 H'F884 H'F885 H'F886 H'F887 HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC121 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC122 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC123 Bit Initial value Read/Write Page 934 of 1126 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC124 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC125 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC126 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 935 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC127 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC128 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames Page 936 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC131--Message Control 131 MC132--Message Control 132 MC133--Message Control 133 MC134--Message Control 134 MC135--Message Control 135 MC136--Message Control 136 MC137--Message Control 137 MC138--Message Control 138 H'F888 H'F889 H'F88A H'F88B H'F88C H'F88D H'F88E H'F88F HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC131 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC132 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC133 Bit Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 R/W R/W R/W R/W R/W R/W R/W Page 937 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC134 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC135 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC136 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames Page 938 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC137 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC138 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 939 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC141--Message Control 141 MC142--Message Control 142 MC143--Message Control 143 MC144--Message Control 144 MC145--Message Control 145 MC146--Message Control 146 MC147--Message Control 147 MC148--Message Control 148 H'F890 H'F891 H'F892 H'F893 H'F894 H'F895 H'F896 H'F897 HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC141 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC142 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC143 Bit Initial value Read/Write Page 940 of 1126 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC144 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC145 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC146 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 941 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC147 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC148 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames Page 942 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC151--Message Control 151 MC152--Message Control 152 MC153--Message Control 153 MC154--Message Control 154 MC155--Message Control 155 MC156--Message Control 156 MC157--Message Control 157 MC158--Message Control 158 H'F898 H'F899 H'F89A H'F89B H'F89C H'F89D H'F89E H'F89F HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN MC151 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- DLC3 DLC2 DLC1 DLC0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- -- -- Data Length Code 0 0 0 1 1 0 1 1 0 0 Other than the above 0 Data length = 0 byte 1 Data length = 1 byte 0 Data length = 2 bytes 1 Data length = 3 bytes 0 Data length = 4 bytes 1 Data length = 5 bytes 0 Data length = 6 bytes 1 Data length = 7 bytes 0 Data length = 8 bytes Setting prohibited MC152 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- MC153 Bit Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 R/W R/W R/W R/W R/W R/W R/W Page 943 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC154 Bit Initial value Read/Write 7 6 5 4 3 2 1 0 -- -- -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 RTR IDE -- MC155 Bit STD_ID2 STD_ID1 STD_ID0 Initial value Read/Write EXD_ID17 EXD_ID16 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W Identifier Extension R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames 0 Standard format 1 Extended format Remote Transmission Request 0 Data frame 1 Remote frame Standard Identifier Set the identifier (standard identifier) of data frames and remote frames MC156 Bit 7 6 5 4 3 2 1 0 STD_ID10 STD_ID9 STD_ID8 STD_ID7 STD_ID6 STD_ID5 STD_ID4 STD_ID3 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Standard Identifier Set the identifier (standard identifier) of data frames and remote frames Page 944 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MC157 Bit 7 EXD_ID7 Initial value Read/Write 6 5 4 3 2 1 0 EXD_ID6 EXD_ID5 EXD_ID4 EXD_ID3 EXD_ID2 EXD_ID1 EXD_ID0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames MC158 Bit 7 6 5 4 3 2 1 0 EXD_ID15 EXD_ID14 EXD_ID13 EXD_ID12 EXD_ID11 EXD_ID10 EXD_ID9 EXD_ID8 Initial value Read/Write Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined R/W R/W R/W R/W R/W R/W R/W R/W Extended Identifier Set the identifier (extended identifier) of data frames and remote frames REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 945 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MD01--Message Data 01 MD02--Message Data 02 MD03--Message Data 03 MD04--Message Data 04 MD05--Message Data 05 MD06--Message Data 06 MD07--Message Data 07 MD08--Message Data 08 H'F8B0 H'F8B1 H'F8B2 H'F8B3 H'F8B4 H'F8B5 H'F8B6 H'F8B7 MD01 MSG_DATA_1 (8 bits) MD02 MSG_DATA_2 (8 bits) MD03 MSG_DATA_3 (8 bits) MD04 MSG_DATA_4 (8 bits) MD05 MSG_DATA_5 (8 bits) MD06 MSG_DATA_6 (8 bits) MD07 MSG_DATA_7 (8 bits) MD08 MSG_DATA_8 (8 bits) MD11--Message Data 11 MD12--Message Data 12 MD13--Message Data 13 MD14--Message Data 14 MD15--Message Data 15 MD16--Message Data 16 MD17--Message Data 17 MD18--Message Data 18 H'F8B8 H'F8B9 H'F8BA H'F8BB H'F8BC H'F8BD H'F8BE H'F8BF MD11 MSG_DATA_1 (8 bits) MD12 MSG_DATA_2 (8 bits) MD13 MSG_DATA_3 (8 bits) MD14 MSG_DATA_4 (8 bits) MD15 MSG_DATA_5 (8 bits) MD16 MSG_DATA_6 (8 bits) MD17 MSG_DATA_7 (8 bits) MD18 MSG_DATA_8 (8 bits) Page 946 of 1126 HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM MD21--Message Data 21 MD22--Message Data 22 MD23--Message Data 23 MD24--Message Data 24 MD25--Message Data 25 MD26--Message Data 26 MD27--Message Data 27 MD28--Message Data 28 H'F8C0 H'F8C1 H'F8C2 H'F8C3 H'F8C4 H'F8C5 H'F8C6 H'F8C7 MD21 MSG_DATA_1 (8 bits) MD22 MSG_DATA_2 (8 bits) MD23 MSG_DATA_3 (8 bits) MD24 MSG_DATA_4 (8 bits) MD25 MSG_DATA_5 (8 bits) MD26 MSG_DATA_6 (8 bits) MD27 MSG_DATA_7 (8 bits) MD28 MSG_DATA_8 (8 bits) MD31--Message Data 31 MD32--Message Data 32 MD33--Message Data 33 MD34--Message Data 34 MD35--Message Data 35 MD36--Message Data 36 MD37--Message Data 37 MD38--Message Data 38 H'F8C8 H'F8C9 H'F8CA H'F8CB H'F8CC H'F8CD H'F8CE H'F8CF MD31 MSG_DATA_1 (8 bits) MD32 MSG_DATA_2 (8 bits) MD33 MSG_DATA_3 (8 bits) MD34 MSG_DATA_4 (8 bits) MD35 MSG_DATA_5 (8 bits) MD36 MSG_DATA_6 (8 bits) MD37 MSG_DATA_7 (8 bits) MD38 MSG_DATA_8 (8 bits) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Appendix B Internal I/O Register HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN Page 947 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MD41--Message Data 41 MD42--Message Data 42 MD43--Message Data 43 MD44--Message Data 44 MD45--Message Data 45 MD46--Message Data 46 MD47--Message Data 47 MD48--Message Data 48 H'F8D0 H'F8D1 H'F8D2 H'F8D3 H'F8D4 H'F8D5 H'F8D6 H'F8D7 MD41 MSG_DATA_1 (8 bits) MD42 MSG_DATA_2 (8 bits) MD43 MSG_DATA_3 (8 bits) MD44 MSG_DATA_4 (8 bits) MD45 MSG_DATA_5 (8 bits) MD46 MSG_DATA_6 (8 bits) MD47 MSG_DATA_7 (8 bits) MD48 MSG_DATA_8 (8 bits) MD51--Message Data 51 MD52--Message Data 52 MD53--Message Data 53 MD54--Message Data 54 MD55--Message Data 55 MD56--Message Data 56 MD57--Message Data 57 MD58--Message Data 58 H'F8D8 H'F8D9 H'F8DA H'F8DB H'F8DC H'F8DD H'F8DE H'F8DF MD51 MSG_DATA_1 (8 bits) MD52 MSG_DATA_2 (8 bits) MD53 MSG_DATA_3 (8 bits) MD54 MSG_DATA_4 (8 bits) MD55 MSG_DATA_5 (8 bits) MD56 MSG_DATA_6 (8 bits) MD57 MSG_DATA_7 (8 bits) MD58 MSG_DATA_8 (8 bits) Page 948 of 1126 HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM MD61--Message Data 61 MD62--Message Data 62 MD63--Message Data 63 MD64--Message Data 64 MD65--Message Data 65 MD66--Message Data 66 MD67--Message Data 67 MD68--Message Data 68 H'F8E0 H'F8E1 H'F8E2 H'F8E3 H'F8E4 H'F8E5 H'F8E6 H'F8E7 MD61 MSG_DATA_1 (8 bits) MD62 MSG_DATA_2 (8 bits) MD63 MSG_DATA_3 (8 bits) MD64 MSG_DATA_4 (8 bits) MD65 MSG_DATA_5 (8 bits) MD66 MSG_DATA_6 (8 bits) MD67 MSG_DATA_7 (8 bits) MD68 MSG_DATA_8 (8 bits) MD71--Message Data 71 MD72--Message Data 72 MD73--Message Data 73 MD74--Message Data 74 MD75--Message Data 75 MD76--Message Data 76 MD77--Message Data 77 MD78--Message Data 78 H'F8E8 H'F8E9 H'F8EA H'F8EB H'F8EC H'F8ED H'F8EE H'F8EF MD71 MSG_DATA_1 (8 bits) MD72 MSG_DATA_2 (8 bits) MD73 MSG_DATA_3 (8 bits) MD74 MSG_DATA_4 (8 bits) MD75 MSG_DATA_5 (8 bits) MD76 MSG_DATA_6 (8 bits) MD77 MSG_DATA_7 (8 bits) MD78 MSG_DATA_8 (8 bits) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Appendix B Internal I/O Register HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN Page 949 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MD81--Message Data 81 MD82--Message Data 82 MD83--Message Data 83 MD84--Message Data 84 MD85--Message Data 85 MD86--Message Data 86 MD87--Message Data 87 MD88--Message Data 88 H'F8F0 H'F8F1 H'F8F2 H'F8F3 H'F8F4 H'F8F5 H'F8F6 H'F8F7 MD81 MSG_DATA_1 (8 bits) MD82 MSG_DATA_2 (8 bits) MD83 MSG_DATA_3 (8 bits) MD84 MSG_DATA_4 (8 bits) MD85 MSG_DATA_5 (8 bits) MD86 MSG_DATA_6 (8 bits) MD87 MSG_DATA_7 (8 bits) MD88 MSG_DATA_8 (8 bits) MD91--Message Data 91 MD92--Message Data 92 MD93--Message Data 93 MD94--Message Data 94 MD95--Message Data 95 MD96--Message Data 96 MD97--Message Data 97 MD98--Message Data 98 H'F8F8 H'F8F9 H'F8FA H'F8FB H'F8FC H'F8FD H'F8FE H'F8FF MD91 MSG_DATA_1 (8 bits) MD92 MSG_DATA_2 (8 bits) MD93 MSG_DATA_3 (8 bits) MD94 MSG_DATA_4 (8 bits) MD95 MSG_DATA_5 (8 bits) MD96 MSG_DATA_6 (8 bits) MD97 MSG_DATA_7 (8 bits) MD98 MSG_DATA_8 (8 bits) Page 950 of 1126 HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM MD101--Message Data 101 MD102--Message Data 102 MD103--Message Data 103 MD104--Message Data 104 MD105--Message Data 105 MD106--Message Data 106 MD107--Message Data 107 MD108--Message Data 108 H'F900 H'F901 H'F902 H'F903 H'F904 H'F905 H'F906 H'F907 MD101 MSG_DATA_1 (8 bits) MD102 MSG_DATA_2 (8 bits) MD103 MSG_DATA_3 (8 bits) MD104 MSG_DATA_4 (8 bits) MD105 MSG_DATA_5 (8 bits) MD106 MSG_DATA_6 (8 bits) MD107 MSG_DATA_7 (8 bits) MD108 MSG_DATA_8 (8 bits) MD111--Message Data 111 MD112--Message Data 112 MD113--Message Data 113 MD114--Message Data 114 MD115--Message Data 115 MD116--Message Data 116 MD117--Message Data 117 MD118--Message Data 118 H'F908 H'F909 H'F90A H'F90B H'F90C H'F90D H'F90E H'F90F MD111 MSG_DATA_1 (8 bits) MD112 MSG_DATA_2 (8 bits) MD113 MSG_DATA_3 (8 bits) MD114 MSG_DATA_4 (8 bits) MD115 MSG_DATA_5 (8 bits) MD116 MSG_DATA_6 (8 bits) MD117 MSG_DATA_7 (8 bits) MD118 MSG_DATA_8 (8 bits) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Appendix B Internal I/O Register HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN Page 951 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MD121--Message Data 121 MD122--Message Data 122 MD123--Message Data 123 MD124--Message Data 124 MD125--Message Data 125 MD126--Message Data 126 MD127--Message Data 127 MD128--Message Data 128 H'F910 H'F911 H'F912 H'F913 H'F914 H'F915 H'F916 H'F917 MD121 MSG_DATA_1 (8 bits) MD122 MSG_DATA_2 (8 bits) MD123 MSG_DATA_3 (8 bits) MD124 MSG_DATA_4 (8 bits) MD125 MSG_DATA_5 (8 bits) MD126 MSG_DATA_6 (8 bits) MD127 MSG_DATA_7 (8 bits) MD128 MSG_DATA_8 (8 bits) MD131--Message Data 131 MD132--Message Data 132 MD133--Message Data 133 MD134--Message Data 134 MD135--Message Data 135 MD136--Message Data 136 MD137--Message Data 137 MD138--Message Data 138 H'F918 H'F919 H'F91A H'F91B H'F91C H'F91D H'F91E H'F91F MD131 MSG_DATA_1 (8 bits) MD132 MSG_DATA_2 (8 bits) MD133 MSG_DATA_3 (8 bits) MD134 MSG_DATA_4 (8 bits) MD135 MSG_DATA_5 (8 bits) MD136 MSG_DATA_6 (8 bits) MD137 MSG_DATA_7 (8 bits) MD138 MSG_DATA_8 (8 bits) Page 952 of 1126 HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM MD141--Message Data 141 MD142--Message Data 142 MD143--Message Data 143 MD144--Message Data 144 MD145--Message Data 145 MD146--Message Data 146 MD147--Message Data 147 MD148--Message Data 148 H'F920 H'F921 H'F922 H'F923 H'F924 H'F925 H'F926 H'F927 MD141 MSG_DATA_1 (8 bits) MD142 MSG_DATA_2 (8 bits) MD143 MSG_DATA_3 (8 bits) MD144 MSG_DATA_4 (8 bits) MD145 MSG_DATA_5 (8 bits) MD146 MSG_DATA_6 (8 bits) MD147 MSG_DATA_7 (8 bits) MD148 MSG_DATA_8 (8 bits) MD151--Message Data 151 MD152--Message Data 152 MD153--Message Data 153 MD154--Message Data 154 MD155--Message Data 155 MD156--Message Data 156 MD157--Message Data 157 MD158--Message Data 158 H'F928 H'F929 H'F92A H'F92B H'F92C H'F92D H'F92E H'F92F MD151 MSG_DATA_1 (8 bits) MD152 MSG_DATA_2 (8 bits) MD153 MSG_DATA_3 (8 bits) MD154 MSG_DATA_4 (8 bits) MD155 MSG_DATA_5 (8 bits) MD156 MSG_DATA_6 (8 bits) MD157 MSG_DATA_7 (8 bits) MD158 MSG_DATA_8 (8 bits) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Appendix B Internal I/O Register HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN HCAN Page 953 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PWCR1--PWM Control Register 1 Bit H'FC00 PWM1 7 6 5 4 3 2 1 0 -- -- IE CMF CST CKS2 CKS1 CKS0 Initial value 1 1 0 0 0 0 0 0 Read/Write -- -- R/W R/(W)* R/W R/W R/W R/W Clock Select 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /2 1 0 Internal clock: counts on /4 1 Internal clock: counts on /8 1 * * Internal clock: counts on /16 Counter Start 0 PWCNT is stopped 1 PWCNT is started *: Don't care Compare Match Flag 0 [Clearing conditions] * When 0 is written to CMF after reading CMF = 1 * When the DTC is activated by a compare match interrupt, and the DISEL bit in the DTC's MRB register is 0 1 [Setting condition] When PWCNT = PWCYR Interrupt Enable 0 Interrupt disabled 1 Interrupt enabled Note: * Only 0 can be written, to clear the flag. Page 954 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PWOCR1--PWM Output Control Register 1 Bit H'FC02 PWM1 7 6 5 4 3 2 1 0 OE1H OE1G OE1F OE1E OE1D OE1C OE1B OE1A Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Output Enable 0 PWM output is disabled 1 PWM output is enabled PWPR1--PWM Polarity Register 1 H'FC04 PWM1 7 6 5 4 3 2 1 0 OPS1H OPS1G OPS1F OPS1E OPS1D OPS1C OPS1B OPS1A Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit Output Polarity Select 0 PWM direct output 1 PWM inverse output PWCYR1--PWM Cycle Register 1 H'FC06 PWM1 15 14 13 12 11 10 -- -- -- -- -- -- Initial value 1 1 1 1 1 1 Read/Write -- -- -- -- -- -- R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Bit 9 8 7 6 5 4 3 2 1 0 1 1 1 1 1 1 1 1 1 1 Set the PWM conversion cycle REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 955 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PWBFR1A--PWM Buffer Register 1A PWBFR1C--PWM Buffer Register 1C PWBFR1E--PWM Buffer Register 1E PWBFR1G--PWM Buffer Register 1G 14 13 -- -- -- OTS -- -- DT9 DT8 DT7 DT6 DT5 DT4 DT3 DT2 DT1 DT0 Initial value 1 1 1 1 Read/Write -- -- -- R/W -- 0 11 PWM1 PWM1 PWM1 PWM1 15 Bit 12 H'FC08 H'FC0A H'FC0C H'FC0E 1 10 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 0 -- R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Duty The data transferred to bits 9 to 0 in PWDTR1 Output Terminal Select The data transferred to bit 12 of PWDTR1 Register OTS PWDTR1A 0 PWM1A output selected 1 PWM1B output selected 0 PWM1C output selected 1 PWM1D output selected PWDTR1E 0 PWM1E output selected 1 PWM1F output selected PWDTR1G 0 PWM1G output selected 1 PWM1H output selected PWDTR1C Description Note: When a PWCYR1 compare match occurs, data is transferred from PWBFR1A to PWDTR1A, from PWBFR1C to PWDTR1C, from PWBFR1E to PWDTR1E, and from PWBFR1G to PWDTR1G. Page 956 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PWCR2--PWM Control Register 2 Bit H'FC10 PWM2 7 6 5 4 3 2 1 0 -- -- IE CMF CST CKS2 CKS1 CKS0 Initial value 1 1 0 0 0 0 0 0 Read/Write -- -- R/W R/(W)* R/W R/W R/W R/W Clock Select 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /2 1 0 Internal clock: counts on /4 1 Internal clock: counts on /8 1 * * Internal clock: counts on /16 Counter Start 0 PWCNT is stopped 1 PWCNT is started *: Don't care Compare Match Flag 0 [Clearing conditions] * When 0 is written to CMF after reading CMF = 1 * When the DTC is activated by a compare match interrupt, and the DISEL bit in the DTC's MRB register is 0 1 [Setting condition] When PWCNT = PWCYR Interrupt Enable 0 Interrupt disabled 1 Interrupt enabled Note: * Only 0 can be written, to clear the flag. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 957 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PWOCR2--PWM Output Control Register 2 Bit H'FC12 PWM2 7 6 5 4 3 2 1 0 OE2H OE2G OE2F OE2E OE2D OE2C OE2B OE2A Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Output Enable 0 PWM output is disabled 1 PWM output is enabled PWPR2--PWM Polarity Register 2 H'FC14 PWM2 7 6 5 4 3 2 1 0 OPS2H OPS2G OPS2F OPS2E OPS2D OPS2C OPS2B OPS2A Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit Output Polarity Select 0 PWM direct output 1 PWM inverse output PWCYR2--PWM Cycle Register 2 H'FC16 PWM2 15 14 13 12 11 10 -- -- -- -- -- -- Initial value 1 1 1 1 1 1 Read/Write -- -- -- -- -- -- R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Bit 9 8 7 6 5 4 3 2 1 0 1 1 1 1 1 1 1 1 1 1 Set the PWM conversion cycle Page 958 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PWBFR2A--PWM Buffer Register 2A PWBFR2B--PWM Buffer Register 2B PWBFR2C--PWM Buffer Register 2C PWBFR2D--PWM Buffer Register 2D 11 PWM2 PWM2 PWM2 PWM2 15 14 13 -- -- -- TDS -- -- DT9 DT8 DT7 DT6 DT5 DT4 DT3 DT2 DT1 DT0 Initial value 1 1 1 1 Read/Write -- -- -- R/W -- Bit 12 H'FC18 H'FC1A H'FC1C H'FC1E 0 1 10 9 0 8 0 7 0 6 0 5 4 0 0 3 2 0 0 1 0 0 0 -- R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Duty Comprise the data transferred to bits 9 to 0 in PWDTR2 Transfer Destination Select Selects the PWDTR2 register to which data is to be transferred Description Register TDS PWBFR2A 0 PWDTR2A selected 1 PWDTR2E selected 0 PWDTR2B selected 1 PWDTR2F selected 0 PWDTR2C selected 1 PWDTR2G selected 0 PWDTR2D selected 1 PWDTR2H selected PWBFR2B PWBFR2C PWBFR2D Note: When a PWCYR2 compare match occurs, data is transferred from PWBFR2A to PWDTR2A or PWDTR2E, from PWBFR2B to PWDTR2B or PWDTR2F, from PWBFR2C to PWDTR2C or PWDTR2G, and from PWBFR2D to PWDTR2D or PWDTR2H. PHDDR--Port H Data Direction Register Bit 7 6 5 H'FC20 4 3 Port 2 1 0 PH7DDR PH6DDR PH5DDR PH4DDR PH3DDR PH2DDR PH1DDR PH0DDR Initial value 0 0 0 0 0 0 0 0 Read/Write W W W W W W W W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 959 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PJDDR--Port J Data Direction Register Bit 7 6 5 H'FC21 4 3 Port 2 1 0 PJ7DDR PJ6DDR PJ5DDR PJ4DDR PJ3DDR PJ2DDR PJ1DDR PJ0DDR Initial value 0 0 0 0 0 0 0 0 Read/Write W W W W W W W W PKDDR--Port K Data Direction Register Bit 7 6 PK7DDR PK6DDR Initial value 0 0 Read/Write W W H'FC22 5 4 3 2 1 0 -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined -- -- PHDR--Port H Data Register Bit Port -- -- -- -- H'FC24 Port 7 6 5 4 3 2 1 0 PH7DR PH6DR PH5DR PH4DR PH3DR PH2DR PH1DR PH0DR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W PJDR--Port J Data Register H'FC25 Port 7 6 5 4 3 2 1 0 PJ7DR PJ6DR PJ5DR PJ4DR PJ3DR PJ2DR PJ1DR PJ0DR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit PKDR--Port K Data Register Bit Port 7 6 5 4 3 2 1 0 PK7DR PK6DR -- -- -- -- -- -- Initial value 0 0 Read/Write R/W R/W Page 960 of 1126 H'FC26 Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PORTH--Port H Register Bit H'FC28 Port 7 6 5 4 3 2 1 0 PH7 PH6 PH5 PH4 PH3 PH2 PH1 PH0 Initial value --* --* --* --* --* --* --* --* Read/Write R R R R R R R R Note: * Determined by the state of PH7 to PH0. PORTJ--Port J Register H'FC29 Port 7 6 5 4 3 2 1 0 PJ7 PJ6 PJ5 PJ4 PJ3 PJ2 PJ1 PJ0 Initial value --* --* --* --* --* --* --* --* Read/Write R R R R R R R R Bit Note: * Determined by the state of PJ7 to PJ0. PORTK--Port K Register H'FC2A Port 7 6 5 4 3 2 1 0 PK7 PK6 -- -- -- -- -- -- Initial value --* --* Read/Write R R Bit Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- Note: * Determined by state of pins PF7 and PF6. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 961 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register LPCR--LCD Port Control Register H'FC30 LCD 7 6 5 4 3 2 1 0 DTS1 DTS0 CMX -- SGS3 SGS2 SGS1 SGS0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W -- R/W R/W R/W R/W Bit Segment Driver Select (H8S/2646, H8S/2646R, H8S/2645) Bit 3 Bit 2 Bit 1 Bit 0 Function of Pins SEG24 to SEG1 SEG24 to SEG16 to SEG12 to SEG8 to SEG4 to SGS3 SGS2 SGS1 SGS0 SEG17 SEG13 SEG9 SEG5 SEG1 0 0 0 0 Port Port Port Port Port 1 1 0 1 0 1 * * * 1 1 1 * 0 SEG SEG SEG SEG SEG Settting prohibited Settting prohibited Port SEG SEG SEG SEG Settting prohibited Settting prohibited Port Port SEG SEG SEG Settting prohibited Settting prohibited Port Port Port SEG SEG Settting prohibited Settting prohibited Notes Port Port Port Port SEG Settting prohibited Settting prohibited Initial value (external expansion enabled) External expansion not possible *: Don't care Note: When using external expansion, set a value of 0000 for SGS3 to SGS0. When the setting of SGS3 to SGS0 is 0000, COM4 to COM1 also function as ports. Segment Driver Select (H8S/2648, H8S/2648R, H8S/2647) Bit 3 Bit 2 Bit 1 Bit 0 Function of Pins SEG40 to SEG1 SEG40 SEG32 SEG28 SEG24 SEG20 SEG16 to to to to to SGS3 SGS2 SGS1 SGS0 to SEG33 SEG29 SEG25 SEG21 SEG17 SEG13 0 0 0 0 Port Port Port Port Port Port 1 1 0 1 1 * * 1 0 1 0 1 0 1 0 1 SEG SEG SEG SEG SEG SEG SEG SEG SEG Port SEG SEG SEG SEG SEG SEG SEG SEG Port Port SEG SEG SEG SEG SEG SEG SEG Port Port Port SEG SEG SEG SEG SEG SEG Port Port Port Port SEG SEG SEG SEG SEG Port Port Port Port Port SEG SEG SEG SEG SEG12 to SEG9 Port SEG8 to SEG5 Port SEG4 to SEG1 Port Port Port Port Port Port Port SEG SEG SEG Port Port Port Port Port Port Port SEG SEG Port Port Port Port Port Port Port Port SEG Notes Initial value (external expansion enabled) External expansion not possible Note: When using external expansion, set a value of 0000 for SGS3 to SGS0. When the setting of SGS3 to SGS0 is 0000, COM4 to COM1 also function as ports. Duty Cycle Select/Common Function Select Bit 7 Bit 6 Bit 5 Duty Cycle Common Drivers DTS1 DTS0 CMX Static COM1 0 0 0 COM4 to COM1 1 1/2 duty COM2 to COM1 0 1 COM4 to COM1 1 1 0 1 0 1 * 1/3 duty 1/4 duty COM3 to COM1 COM4 to COM1 COM4 to COM1 Notes COM4, COM3, and COM2 can be used as ports (Initial value) COM4, COM3, and COM2 output the same waveform as COM1 COM4 and COM3 can be used as ports COM4 outputs the same waveform as COM3, and COM2 outputs the same waveform as COM1 COM4 can be used as a port Do not use COM4 -- Note: COM4 to COM1 function as ports when the setting of SGS3 to SGS0 is 0000 (initial value). Page 962 of 1126 *: Don't care *: Don't care REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register LCR--LCD Control Register H'FC31 LCD 7 6 5 4 3 2 1 0 -- PSW ACT DISP CKS3 CKS2 CKS1 CKS0 Initial value 1 0 0 0 0 0 0 0 Read/Write -- R/W R/W R/W R/W R/W R/W R/W Bit Frame Frequency Select Bit 3 Bit 2 Bit 1 Bit 0 Operating Clock = 20 MHz CKS3 CKS2 CKS1 CKS0 0 * 1 0 0 SUB 1 SUB/2 64 Hz*2 1 * SUB/4 32 Hz*2 0 0 /8 4880 Hz 1 /16 2440 Hz 0 /32 1220 Hz 1 /64 610 Hz 0 /128 305 Hz 1 /256 152.6 Hz 0 /512 76.3 Hz 1 /1024 38.1 Hz 0 1 1 Frame Frequency*1 0 1 128 Hz*2 *: Don't care Notes: 1. When 1/3 duty is selected, the frame frequency is 4/3 times the value shown. 2. This is the frame frequency when SUB = 32.768 kHz. Display Data Control 0 Blank data is displayed 1 LCD RAM data is display Display Function Activate 0 LCD controller/driver operation halted 1 LCD controller/driver operates LCD Power Supply Split-Resistance Connection Control 0 LCD power supply split-resistance is disconnected from VCC 1 LCD power supply split-resistance is connected to VCC REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 963 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register LCR2--LCD Control Register 2 Bit H'FC32 LCD 7 6 5 4 3 2 1 0 LCDAB -- -- -- -- -- -- -- Initial value 0 1 1 0 0 0 0 0 Read/Write R/W -- -- -- -- -- -- -- A Waveform/B Waveform Switching Control 0 Drive using A waveform 1 Drive using B waveform LCD--LCD RAM H'FC40 to H'FC53 MSTPCRD--Module Stop Control Register D H'FC60 Bit 7 6 MSTPD7 MSTPD6 Initial value 1 1 Read/Write R/W R/W LCD System 5 4 3 2 1 0 -- -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- -- Module Stop 0 Module stop mode is cleared 1 Module stop mode is set Page 964 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SBYCR--Standby Control Register Bit H'FDE4 System 7 6 5 4 3 2 1 0 SSBY STS2 STS1 STS0 OPE -- -- -- Initial value 0 1 0 1 1 0 0 0 Read/Write R/W R/W R/W R/W R/W -- -- -- Output Port Enable 0 In software standby mode, watch mode, and when making a direct transition, address bus and bus control signals are high-impedance 1 In software standby mode, watch mode, and when making a direct transition, the output state of the address bus and bus control signals is retained Standby Timer Select 2 to 0 0 0 1 1 0 1 0 Standby time = 8192 states 1 Standby time = 16384 states 0 Standby time = 32768 states 1 Standby time = 65536 states 0 Standby time = 131072 states 1 Standby time = 262144 states 0 Reserved 1 Standby time = 16 states Software Standby 0 Shifts to sleep mode when the SLEEP instruction is executed in high-speed mode or medium-speed mode Shifts to sub-sleep mode when the SLEEP instruction is executed in subactive mode 1 Shifts to software standby mode, subactive mode, and watch mode when the SLEEP instruction is executed in high-speed mode or medium-speed mode Shifts to watch mode or high-speed mode when the SLEEP instruction is executed in subactive mode REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 965 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SYSCR--System Control Register Bit H'FDE5 System 7 6 5 4 3 2 1 0 MACS -- INTM1 INTM0 NMIEG -- -- RAME Initial value 0 0 0 0 0 0 0 1 Read/Write R/W -- R/W R/W R/W R/W -- R/W RAM Enable 0 On-chip RAM is disabled 1 On-chip RAM is enabled NMI Edge Select 0 An interrupt is requested at the falling edge of NMI input 1 An interrupt is requested at the rising edge of NMI input Interrupt Control Mode 1 and 0 INTM1 INTM0 0 1 Interrupt Control Mode Description 0 0 Control of interrupts by I bit 1 -- Setting prohibited 0 2 Control of interrupts by I2 to I0 bits and IPR 1 -- Setting prohibited MAC Saturation 0 Non-saturating calculation for MAC instruction 1 Saturating calculation for MAC instruction Page 966 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SCKCR--System Clock Control Register H'FDE6 System 7 6 5 4 3 2 1 0 PSTOP -- -- -- STCS SCK2 SCK1 SCK0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W -- -- -- R/W R/W R/W R/W Bit System Clock Select 0 0 0 Bus master in high-speed mode 1 Medium-speed clock is /2 1 0 Medium-speed clock is /4 1 Medium-speed clock is /8 1 0 0 Medium-speed clock is /16 1 Medium-speed clock is /32 1 -- -- Frequency Multiplication Factor Switching Mode Select 0 Specified multiplication factor is valid after transition to software standby mode, watch mode, or subactive mode 1 Specified multiplication factor is valid immediately after STC bits are rewritten Clock Output Disable DDR PSTOP Hardware standby mode Software standby mode, watch mode, and direct transition Sleep mode and subsleep mode High-speed mode, medium-speed mode, and subactive mode REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 0 -- High impedance High impedance 1 0 High impedance Fixed high High impedance output High impedance output 1 1 High impedance Fixed high Fixed high Fixed high Page 967 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MDCR--Mode Control Register Bit H'FDE7 System 7 6 5 4 3 2 1 0 -- -- -- -- -- MDS2 MDS1 MDS0 Initial value 1 0 0 0 0 --* --* --* Read/Write -- -- -- -- -- R R R Mode Select 2 to 0 Indicate the input levels at pins MD2 to MD0 Note: * Determined by pins MD2 to MD0. MSTPCRA--Module Stop Control Register A Bit 7 6 5 H'FDE8 4 3 System 2 1 0 MSTPA7 MSTPA6 MSTPA5 MSTPA4 MSTPA3 MSTPA2 MSTPA1 MSTPA0 Initial value 0 0 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Module Stop 0 Module stop mode is cleared 1 Module stop mode is set MSTPCRB--Module Stop Control Register B Bit 7 6 MSTPB7 MSTPB6 5 -- H'FDE9 4 3 System 2 1 0 MSTPB4 MSTPB3 MSTPB2 MSTPB1 MSTPB0 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W -- R/W R/W R/W R/W R/W Module Stop Page 968 of 1126 0 Module stop mode is cleared 1 Module stop mode is set REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register MSTPCRC--Module Stop Control Register C Bit 7 6 5 H'FDEA 4 3 System 2 1 0 MSTPC7 -- Initial value 1 1 1 1 1 1 1 1 Read/Write R/W -- R/W R/W R/W R/W R/W R/W MSTPC5 MSTPC4 MSTPC3 MSTPC2 MSTPC1 MSTPC0 Module Stop 0 Module stop mode is cleared 1 Module stop mode is set PFCR--Pin Function Control Register H'FDEB System 7 6 5 4 3 2 1 0 -- -- -- -- AE3 AE2 AE1 AE0 Initial value 0 0 0 0 1/0 1/0 1 1/0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit Address Output Enable 3 to 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 0 A8-A23 address output disabled (Initial value*) 1 A8 address output enabled; A9-A23 address output disabled 0 A8, A9 address output enabled; A10-A23 address output disabled 1 A8-A10 address output enabled; A11-A23 address output disabled 0 A8-A11 address output enabled; A12-A23 address output disabled 1 A8-A12 address output enabled; A13-A23 address output disabled 0 A8-A13 address output enabled; A14-A23 address output disabled 1 A8-A14 address output enabled; A15-A23 address output disabled 0 A8-A15 address output enabled; A16-A23 address output disabled 1 A8-A16 address output enabled; A17-A23 address output disabled 0 A8-A17 address output enabled; A18-A23 address output disabled 1 A8-A18 address output enabled; A19-A23 address output disabled 0 A8-A19 address output enabled; A20-A23 address output disabled 1 A8-A20 address output enabled; A21-A23 address output disabled (Initial value*) 0 A8-A21 address output enabled; A22, A23 address output disabled 1 A8-A23 address output enabled Note: * In expanded mode of on-chip ROM validity, bits AE3 to AE0 are initialized to B'0000. In expanded mode of on-chip ROM invalidity, bits AE3 to AE0 are initialized to B'1101. Address pins A0 to A7 are made address outputs by setting the corresponding DDR bits to 1. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 969 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register LPWRCR--Low-Power Control Register H'FDEC 7 6 DTON LSON Initial value 0 0 0 0 Read/Write R/W R/W R/W R/W Bit 5 4 3 System 2 1 0 -- STC1 STC0 0 0 0 0 R/W R/W R/W R/W NESEL SUBSTP RFCUT Frequency Multiplication Factor 0 1 0 x1 1 x2 0 x4 1 Setting prohibited Note: The clock frequency after a multiplication must not exceed the maximum operating frequency of this LSI. Oscillation Circuit Feedback Resistance Control Bit 0 When the main clock is oscillating, sets the feedback resistance ON. When the main clock is stopped, sets the feedback resistance OFF 1 Sets the feedback resistance OFF Noise Elimination Sampling Frequency Select Subclock Enable 0 Sampling using 1/32 x 0 Enables subclock generation 1 Sampling using 1/4 x 1 Disables subclock generation Low-Speed ON Flag 0 * When the SLEEP instruction is executed in high-speed mode or medium-speed mode, operation shifts to sleep mode, software standby mode, or watch mode* * When the SLEEP instruction is executed in subactive mode, operation shifts to watch mode or shifts directly to high-speed mode * Operation shifts to high-speed mode when watch mode is cancelled 1 * When the SLEEP instruction is executed in high-speed mode, operation shifts to watch mode or subactive mode * When the SLEEP instruction is executed in subactive mode, operation shifts to subsleep mode or watch mode * Operation shifts to subactive mode when watch mode is cancelled Note: * Always set high-speed mode when shifting to watch mode or subactive mode. Direct Transition ON Flag 0 * When the SLEEP instruction is executed in high-speed mode or medium-speed mode, operation shifts to sleep mode, software standby mode, or watch mode* * When the SLEEP instruction is executed in subactive mode, operation shifts to subsleep mode or watch mode 1 * When the SLEEP instruction is executed in high-speed mode or medium-speed mode, operation shifts directly to subactive mode*, or shifts to sleep mode or software standby mode * When the SLEEP instruction is executed in subactive mode, operation shifts directly to high-speed mode, or shifts to subsleep mode Note: * Always set high-speed mode when shifting to watch mode or subactive mode. Page 970 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register BARA--Break Address Register A BARB--Break Address Register B Bit 31 -- Initial value Undefined -- Read/Write *** 24 *** BAA BAA BAA BAA BAA BAA BAA BAA -- 23 22 21 20 19 18 17 16 *** *** 23 22 21 H'FE00 H'FE04 20 19 18 17 16 Unde- 0 0 0 0 0 0 0 0 fined -- R/W R/W R/W R/W R/W R/W R/W R/W *** *** *** *** 7 PBC PBC 6 5 4 3 2 1 0 BAA BAA BAA BAA BAA BAA BAA BAA 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 0 R/W R/W R/W R/W R/W R/W R/W R/W Break Address 23 to 0 Specify the channel A or B break address REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 971 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register BCRA--Break Control Register A BCRB--Break Control Register B Bit 7 6 H'FE08 H'FE09 5 4 PBC PBC 3 2 1 BAMRA2 BAMRA1 BAMRA0 CSELA1 CSELA0 0 CMFA CDA Initial value 0 0 0 0 0 0 0 BIEA 0 Read/Write R/(W)* R/W R/W R/W R/W R/W R/W R/W Break Interrupt Enable 0 PC break interrupts are disabled 1 PC break interrupts are enabled Break Condition Select 0 0 Instruction fetch is used as break condition 1 Data read cycle is used as break condition 1 0 Data write cycle is used as break condition 1 Data read/write cycle is used as break condition Break Address Mask Register 0 0 0 All BARA bits are unmasked and included in break conditions 1 BAA0 (lowest bit) is masked, and not included in break conditions 1 0 BAA1-0 (lower 2 bits) are masked, and not included in break conditions 1 BAA2-0 (lower 3 bits) are masked, and not included in break conditions 1 0 0 BAA3-0 (lower 4 bits) are masked, and not included in break conditions 1 BAA7-0 (lower 8 bits) are masked, and not included in break conditions 1 0 BAA11-0 (lower 12 bits) are masked, and not included in break conditions 1 BAA15-0 (lower 16 bits) are masked, and not included in break conditions CPU Cycle/DTC Cycle Select A 0 PC break is performed when CPU is bus master 1 PC break is performed when CPU or DTC is bus master Condition Match Flag A 0 [Clearing condition] When 0 is written to CMFA after reading CMFA = 1 1 [Setting condition] When a condition set for channel A is satisfied Notes: BCRB is the channel B break control register. The bit configuration is the same as for BCRA. * Only a 0 may be written to this bit to clear the flag. Page 972 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register ISCRH--IRQ Sence Control Register H ISCRL--IRQ Sence Control Register L H'FE12 H'FE13 Interrupt Controller Interrupt Controller ISCRH Bit 15 14 13 12 -- -- -- -- 11 10 9 8 IRQ5SCB IRQ5SCA IRQ4SCB IRQ4SCA Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 ISCRL Bit IRQ3SCB IRQ3SCA IRQ2SCB IRQ2SCA IRQ1SCB IRQ1SCA IRQ0SCB IRQ0SCA Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W IRQ5 to IRQ0 sense control A and B IRQ5SCB to IRQ0SCB IRQ5SCA to IRQ0SCA Description 0 0 Interrupt request generated at IRQ5 to IRQ0 input at low level 1 Interrupt request generated at falling edge of IRQ5 to IRQ0 input 0 Interrupt request generated at rising edge of IRQ5 to IRQ0 input 1 Interrupt request generated at both falling and rising edges of IRQ5 to IRQ0 input 1 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 973 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register IER--IRQ Enable Register H'FE14 Interrupt Controller 7 6 5 4 3 2 1 0 -- -- IRQ5E IRQ4E IRQ3E IRQ2E IRQ1E IRQ0E Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit IRQ5 to IRQ0 Enable 0 IRQn interrupts disabled 1 IRQn interrupts enabled (n = 5 to 0) ISR--IRQ Status Register Bit H'FE15 Interrupt Controller 7 6 5 4 3 2 1 0 -- -- IRQ5F IRQ4F IRQ3F IRQ2F IRQ1F IRQ0F Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* IRQ5 to IRQ0 Flags 0 [Clearing conditions] * Cleared by reading IRQnF when IRQnF = 1, then writing 0 to IRQnF flag * When interrupt exception handling is executed while low-level detection is set (IRQnSCB = IRQnSCA = 0) and IRQn input is high * When IRQn interrupt exception handling is executed while falling, rising, or both-edge detection is set (IRQnSCB = 1 or IRQnSCA = 1) * When the DTC is activated by an IRQn interrupt, and the DISEL bit in MRB of the DTC is cleared to 0 1 [Setting conditions] * When IRQn input goes low when low-level detection is set (IRQnSCB = IRQnSCA = 0) * When a falling edge occurs in IRQn input when falling edge detection is set (IRQnSCB = 0, IRQnSCA = 1) * When a rising edge occurs in IRQn input when rising edge detection is set (IRQnSCB = 1, IRQnSCA = 0) * When a falling or rising edge occurs in IRQn input when both-edge detection is set (IRQnSCB = IRQnSCA = 1) (n = 5 to 0) Note: * Only 0 can be written, to clear the flag. Page 974 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register DTCER--DTC Enable Register A DTCER--DTC Enable Register B DTCER--DTC Enable Register C DTCER--DTC Enable Register D DTCER--DTC Enable Register E DTCER--DTC Enable Register F DTCER--DTC Enable Register G DTCER--DTC Enable Register I H'FE16 H'FE17 H'FE18 H'FE19 H'FE1A H'FE1B H'FE1C H'FE1E DTC DTC DTC DTC DTC DTC DTC DTC 7 6 5 4 3 2 1 0 DTCE7 DTCE6 DTCE5 DTCE4 DTCE3 DTCE2 DTCE1 DTCE0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit DTC Activation Enable 0 DTC activation by interrupt is disabled [Clearing conditions] * When the DISEL bit is 1 and the data transfer has ended * When the specified number of transfers have ended 1 DTC activation by interrupt is enabled [Holding condition] When the DISEL bit is 0 and the specified number of transfers have not ended REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 975 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register DTVECR--DTC Vector Register Bit 7 6 H'FE1F 5 4 3 DTC 2 1 0 SWDTE DTVEC6 DTVEC5 DTVEC4 DTVEC3 DTVEC2 DTVEC1 DTVEC0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)*1 R/W*2 R/W*2 R/W*2 R/W*2 R/W*2 R/W*2 R/W*2 Specify a number for DTC software activation DTC Software Activation Enable 0 DTC software activation is disabled [Clearing condition] * When the DISEL bit is 0 and the specified number of transfers have not ended * When 0s written to the DISEL bit after a software-activated data transfer end interrupt (SWDTEND) request has been sent to the CPU 1 DTC software activation is enabled [Holding conditions] * When the DISEL bit is 1 and data transfer has ended * When the specified number of transfers have ended * During data transfer due to software activation Notes: 1. Only 1 can be written to the SWDTE bit. 2. Bits DTVEC6 to DTVEC0 can be written to when SWDTE = 0. Page 976 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PCR--PPG Output Control Register Bit 7 6 H'FE26 5 4 3 PPG 2 1 0 G3CMS1 G3CMS0 G2CMS1 G2CMS0 G1CMS1 G1CMS0 G0CMS1 G0CMS0 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Group 0 Compare Match Select 0 0 Compare match in TPU channel 0 1 Compare match in TPU channel 1 1 0 Compare match in TPU channel 2 1 Compare match in TPU channel 3 Group 1 Compare Match Select 0 0 Compare match in TPU channel 0 1 Compare match in TPU channel 1 1 0 Compare match in TPU channel 2 1 Compare match in TPU channel 3 Group 2 Compare Match Select 0 0 Compare match in TPU channel 0 1 Compare match in TPU channel 1 1 0 Compare match in TPU channel 2 1 Compare match in TPU channel 3 Group 3 Compare Match Select 0 0 Compare match in TPU channel 0 1 Compare match in TPU channel 1 1 0 Compare match in TPU channel 2 1 Compare match in TPU channel 3 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 977 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PMR--PPG Output Mode Register H'FE27 7 6 5 4 G3INV G2INV G1INV G0INV Bit PPG 3 2 G3NOV G2NOV 0 1 G1NOV G0NOV Initial value 1 1 1 1 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Group 0 Non-Overlap 0 Normal operation in pulse output group 0 (output values updated at compare match A in the selected TPU channel) 1 Non-overlapping operation in pulse output group 0 (independent 1 and 0 output at compare match A or B in the selected TPU channel) Group 1 Non-Overlap 0 Normal operation in pulse output group 1 (output values updated at compare match A in the selected TPU channel) 1 Non-overlapping operation in pulse output group 1 (independent 1 and 0 output at compare match A or B in the selected TPU channel) Group 2 Non-Overlap 0 Normal operation in pulse output group 2 (output values updated at compare match A in the selected TPU channel) 1 Non-overlapping operation in pulse output group 2 (independent 1 and 0 output at compare match A or B in the selected TPU channel) Group 3 Non-Overlap 0 Normal operation in pulse output group 3 (output values updated at compare match A in the selected TPU channel) 1 Non-overlapping operation in pulse output group 3 (independent 1 and 0 output at compare match A or B in the selected TPU channel) Group 0 Inversion 0 Inverted output for pulse output group 0 (low-level output at pin for a 1 in PODRL) 1 Direct output for pulse output group 0 (high-level output at pin for a 1 in PODRL) Group 1 Inversion 0 Inverted output for pulse output group 1 (low-level output at pin for a 1 in PODRL) 1 Direct output for pulse output group 1 (high-level output at pin for a 1 in PODRL) Group 2 Inversion 0 Inverted output for pulse output group 2 (low-level output at pin for a 1 in PODRH) 1 Direct output for pulse output group 2 (high-level output at pin for a 1 in PODRH) Group 3 Inversion 0 Inverted output for pulse output group 3 (low-level output at pin for a 1 in PODRH) 1 Direct output for pulse output group 3 (high-level output at pin for a 1 in PODRH) Page 978 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register NDERH--Next Data Enable Register H Bit 7 6 5 H'FE28 4 3 PPG 2 0 1 NDER15 NDER14 NDER13 NDER12 NDER11 NDER10 NDER9 NDER8 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Next Data Enable 0 Pulse outputs PO15 to PO8 are disabled (NDR15 to NDR8 are not transferred to POD15 to POD8) 1 Pulse outputs PO15 to PO8 are enabled (NDR15 to NDR8 are transferred to POD15 to POD8) NDERL--Next Data Enable Register L Bit H'FE29 PPG 7 6 5 4 3 2 1 0 NDER7 NDER6 NDER5 NDER4 NDER3 NDER2 NDER1 NDER0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Next Data Enable 0 Pulse outputs PO7 to PO0 are disabled (NDR7 to NDR0 are not transferred to POD7 to POD0 1 Pulse outputs PO7 to PO0 are enabled (NDR7 to NDR0 are transferred to POD7 to POD0) PODRH--Output Data Register H H'FE2A PPG 7 6 5 4 3 2 1 0 POD15 POD14 POD13 POD12 POD11 POD10 POD9 POD8 Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Bit Note: * A bit that has been set for pulse output by NDER is read-only. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 979 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PODRL--Output Data Register L Bit H'FE2B PPG 7 6 5 4 3 2 1 0 POD7 POD6 POD5 POD4 POD3 POD2 POD1 POD0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Note: * A bit that has been set for pulse output by NDER is read-only. Page 980 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register NDRH--Next Data Register H H'FE2C, H'FE2E PPG Same Trigger for Pulse Output Groups Address H'FE2C 7 6 5 4 3 2 1 0 NDR15 NDR14 NDR13 NDR12 NDR11 NDR10 NDR9 NDR8 Bit Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 Address H'FE2E Bit -- -- -- -- -- -- -- -- Initial value 1 1 1 1 1 1 1 1 Read/Write -- -- -- -- -- -- -- -- Different Triggers for Pulse Output Groups Address H'FE2C 7 6 5 4 3 2 1 0 NDR15 NDR14 NDR13 NDR12 -- -- -- -- Initial value 0 0 0 0 1 1 1 1 Read/Write R/W R/W R/W R/W -- -- -- -- 7 6 5 4 3 2 1 0 -- -- -- -- NDR11 NDR10 NDR9 NDR8 Bit Address H'FE2E Bit Initial value 1 1 1 1 0 0 0 0 Read/Write -- -- -- -- R/W R/W R/W R/W Note: For details, see section 11.2.4, Notes on NDR Access. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 981 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register NDRL--Next Data Register L H'FE2D, H'FE2F PPG Same Trigger for Pulse Output Groups Address H'FE2D 7 6 5 4 3 2 1 0 NDR7 NDR6 NDR5 NDR4 NDR3 NDR2 NDR1 NDR0 Bit Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W 7 6 5 4 3 2 1 0 Address H'FE2F Bit -- -- -- -- -- -- -- -- Initial value 1 1 1 1 1 1 1 1 Read/Write -- -- -- -- -- -- -- -- Different Triggers for Pulse Output Groups Address H'FE2D 7 6 5 4 3 2 1 0 NDR7 NDR6 NDR5 NDR4 -- -- -- -- Initial value 0 0 0 0 1 1 1 1 Read/Write R/W R/W R/W R/W -- -- -- -- 7 6 5 4 3 2 1 0 -- -- -- -- NDR3 NDR2 NDR1 NDR0 Bit Address H'FE2F Bit Initial value 1 1 1 1 0 0 0 0 Read/Write -- -- -- -- R/W R/W R/W R/W Note: For details, see section 11.2.4, Notes on NDR Access. Page 982 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register P1DDR--Port 1 Data Direction Register Bit 7 6 5 H'FE30 4 3 Port 2 1 0 P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR Initial value 0 0 0 0 0 0 0 0 Read/Write W W W W W W W W Specify input or output for each of the pins in port 1 P2DDR--Port 2 Data Direction Register Bit 7 6 5 H'FE31 4 3 Port 2 1 0 P27DDR P26DDR P25DDR P24DDR P23DDR P22DDR P21DDR P20DDR Initial value 0 0 0 0 0 0 0 0 Read/Write W W W W W W W W Specify input or output for each of the pins in port 2 P3DDR--Port 3 Data Direction Register Bit 7 6 5 H'FE32 4 3 Port 2 1 0 P37DDR P36DDR P35DDR P34DDR P33DDR P32DDR P31DDR P30DDR Initial value 0 0 0 0 0 0 0 0 Read/Write W W W W W W W W Specify input or output for each of the pins in port 3 P5DDR--Port 5 Data Direction Register Bit Initial value Read/Write H'FE34 7 6 5 4 3 -- -- -- -- -- Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- Port 2 1 0 P52DDR P51DDR P50DDR 0 0 0 W W W Specify input or output for each of the pins in port 5. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 983 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PADDR--Port A Data Direction Register Bit 7 6 5 H'FE39 4 3 Port 2 1 0 PA7DDR PA6DDR PA5DDR PA4DDR PA3DDR PA2DDR PA1DDR PA0DDR Initial value 0 0 0 0 0 0 0 0 Read/Write W W W W W W W W Specify input or output for each of the pins in port A PBDDR--Port B Data Direction Register Bit 7 6 5 H'FE3A 4 3 Port 2 1 0 PB7DDR PB6DDR PB5DDR PB4DDR PB3DDR PB2DDR PB1DDR PB0DDR Initial value 0 0 0 0 0 0 0 0 Read/Write W W W W W W W W Specify input or output for each of the pins in port B PCDDR--Port C Data Direction Register Bit 7 6 5 H'FE3B 4 3 Port 2 1 0 PC7DDR PC6DDR PC5DDR PC4DDR PC3DDR PC2DDR PC1DDR PC0DDR Initial value 0 0 0 0 0 0 0 0 Read/Write W W W W W W W W Specify input or output for each of the pins in port C PDDDR--Port D Data Direction Register Bit 7 6 5 H'FE3C 4 3 Port 2 1 0 PD7DDR PD6DDR PD5DDR PD4DDR PD3DDR PD2DDR PD1DDR PD0DDR Initial value 0 0 0 0 0 0 0 0 Read/Write W W W W W W W W Specify input or output for each of the pins in port D Page 984 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PEDDR--Port E Data Direction Register Bit 7 6 5 H'FE3D 4 3 Port 2 0 1 PE7DDR PE6DDR PE5DDR PE4DDR PE3DDR PE2DDR PE1DDR PE0DDR Initial value 0 0 0 0 0 0 0 0 Read/Write W W W W W W W W Specify input or output for each of the pins in port E PFDDR--Port F Data Direction Register Bit 7 6 5 H'FE3E 4 3 Port 2 PF7DDR PF6DDR PF5DDR PF4DDR PF3DDR PF2DDR 1 0 -- PF0DDR Modes 4, 5, 6 Initial value 1 0 0 0 0 0 Undefined 0 Read/Write W W W W W W -- W Mode 7 Initial value 0 0 0 0 0 0 Undefined 0 Read/Write W W W W W W -- W Specify input or output for each of the pins in port F PAPCR--Port A MOS Pull-Up Control Register Bit 7 6 5 4 H'FE40 3 Port 2 0 1 PA7PCR PA6PCR PA5PCR PA4PCR PA3PCR PA2PCR PA1PCR PA0PCR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Control the MOS input pull-up function incorporated into port A REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 985 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PBPCR--Port B MOS Pull-Up Control Register Bit 7 6 5 4 H'FE41 3 Port 2 1 0 PB7PCR PB6PCR PB5PCR PB4PCR PB3PCR PB2PCR PB1PCR PB0PCR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Control the MOS input pull-up function incorporated into port B PCPCR--Port C MOS Pull-Up Control Register Bit 7 6 5 4 H'FE42 3 Port 2 1 0 PC7PCR PC6PCR PC5PCR PC4PCR PC3PCR PC2PCR PC1PCR PC0PCR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Control the MOS input pull-up function incorporated into port C PDPCR--Port D MOS Pull-Up Control Register Bit 7 6 5 4 H'FE43 3 Port 2 1 0 PD7PCR PD6PCR PD5PCR PD4PCR PD3PCR PD2PCR PD1PCR PD0PCR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Control the MOS input pull-up function incorporated into port D PEPCR--Port E MOS Pull-Up Control Register Bit 7 6 5 4 H'FE44 3 Port 2 1 0 PE7PCR PE6PCR PE5PCR PE4PCR PE3PCR PE2PCR PE1PCR PE0PCR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Control the MOS input pull-up function incorporated into port E Page 986 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register P3ODR--Port 3 Open Drain Control Register Bit 7 6 5 H'FE46 4 3 Port 2 1 0 P37ODR P36ODR P35ODR P34ODR P33ODR P32ODR P31ODR P30ODR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Control whether PMOS is on or off for each port 3 pin PAODR--Port A Open Drain Control Register Bit 7 6 5 H'FE47 4 3 Port 2 1 0 PA7ODR PA6ODR PA5ODR PA4ODR PA3ODR PA2ODR PA1ODR PA0ODR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Control whether PMOS is on or off for each port A pin PBODR--Port B Open Drain Control Register Bit 7 6 5 H'FE48 4 3 Port 2 1 0 PB7ODR PB6ODR PB5ODR PB4ODR PB3ODR PB2ODR PB1ODR PB0ODR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Control whether PMOS is on or off for each port B pin PCODR--Port C Open Drain Control Register Bit 7 6 5 H'FE49 4 3 Port 2 1 0 PC7ODR PC6ODR PC5ODR PC4ODR PC3ODR PC2ODR PC1ODR PC0ODR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Control whether PMOS is on or off for each port C pin REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 987 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCR3--Timer Control Register 3 H'FE80 TPU3 7 6 5 4 3 2 1 0 CCLR2 CCLR1 CCLR0 CKEG1 CKEG0 TPSC2 TPSC1 TPSC0 Bit Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Time Prescaler 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /4 1 0 Internal clock: counts on /16 1 Internal clock: counts on /64 1 0 0 External clock: counts on TCLKA pin input 1 Internal clock: counts on /1024 1 0 Internal clock: counts on /256 1 Internal clock: counts on /4096 Clock Edge 0 0 Count at rising edge 1 Count at falling edge 1 -- Count at both edges Note: Internal clock edge selection is valid when the input clock is /4 or slower. This setting is ignored if the input clock is /1, or when overflow/underflow of another channel is selected. Counter Clear 0 0 0 TCNT clearing disabled 1 TCNT cleared by TGRA compare match/input capture 1 0 TCNT cleared by TGRB compare match/input capture 1 TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation*1 1 0 0 TCNT clearing disabled 1 TCNT cleared by TGRC compare match/input capture*2 1 0 TCNT cleared by TGRD compare match/input capture*2 1 TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation*1 Notes: 1. Synchronous operation setting is performed by setting the SYNC bit in TSYR to 1. 2. When TGRC or TGRD is used as a buffer register, TCNT is not cleared because the buffer register setting has priority, and compare match/input capture does not occur. Page 988 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TMDR3--Timer Mode Register 3 Bit H'FE81 TPU3 7 6 5 4 3 2 1 0 -- -- BFB BFA MD3 MD2 MD1 MD0 Initial value 1 1 0 0 0 0 0 0 Read/Write -- -- R/W R/W R/W R/W R/W R/W Mode 0 0 0 Normal operation 1 Reserved 0 PWM mode 1 1 PWM mode 2 0 Phase counting mode 1 1 Phase counting mode 2 1 0 Phase counting mode 3 1 Phase counting mode 4 * * -- 0 1 1 1 * 0 *: Don't care Notes: 1. MD3 is a reserved bit. In a write, it should always be written with 0. 2. Phase counting mode cannot be set for channel 3. In this case, 0 should always be written to MD2. Buffer Operation A 0 TGRA operates normally 1 TGRA and TGRC used together for buffer operation Buffer Operation B REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 0 TGRB operates normally 1 TGRB and TGRD used together for buffer operation Page 989 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIOR3H--Timer I/O Control Register 3H Bit H'FE82 TPU3 7 6 5 4 3 2 1 0 IOB3 IOB2 IOB1 IOB0 IOA3 IOA2 IOA1 IOA0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W TGR3A I/O Control 0 0 0 1 1 0 1 0 TGR3A is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 1 1 * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 0 TGR3A is 1 input capture * register * Capture input source is TIOCA3 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT4 count-up/ source is channel count-down 4/count clock *: Don't care TGR3B I/O Control 0 0 0 1 1 0 1 0 TGR3B is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 1 1 * 0 TGR3B is 1 input capture * register * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match Capture input source is TIOCB3 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT4 count-up/ source is channel count-down*1 4/count clock *: Don't care Note: 1. Page 990 of 1126 When bits TPSC2 to TPSC0 in TCR4 are set to B'000 and /1 is used as the TCNT4 count clock, this setting is invalid and input capture is not generated. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIOR3L--Timer I/O Control Register 3L Bit H'FE83 TPU3 7 6 5 4 3 2 1 0 IOD3 IOD2 IOD1 IOD0 IOC3 IOC2 IOC1 IOC0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W TGR3C I/O Control 0 0 0 1 1 0 1 0 TGR3C is Output disabled 1 output Initial output is 0 compare 0 register*1 output 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 1 1 * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 0 TGR3C is 1 input capture * register*1 * Capture input source is TIOCC3 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT4 count-up/ Capture input source is channel count-down 4/count clock *: Don't care Note: 1. When the BFA bit in TMDR3 is set to 1 and TGR3C is used as a buffer register, this setting is invalid and input capture/output compare is not generated. TGR3D I/O Control 0 0 0 1 1 0 1 0 TGR3D is Output disabled 1 output Initial output is 0 compare 0 register*2 output 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 1 1 * 0 TGR3D is 1 input capture * register*2 * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match Capture input source is TIOCD3 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT4 count-up/ source is channel count-down*1 4/count clock *: Don't care Notes: 1. When bits TPSC2 to TPSC0 in TCR4 are set to B'000 and /1 is used as the TCNT4 count clock, this setting is invalid and input capture is not generated. 2. When the BFB bit in TMDR3 is set to 1 and TGR3D is used as a buffer register, this setting is invalid and input capture/output compare is not generated. Note: When TGRC or TGRD is designated for buffer operation, this setting is invalid and the register operates as a buffer register. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 991 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIER3--Timer Interrupt Enable Register 3 Bit H'FE84 TPU3 7 6 5 4 3 2 1 0 TTGE -- -- TCIEV TGIED TGIEC TGIEB TGIEA Initial value 0 1 0 0 0 0 0 0 Read/Write R/W -- -- R/W R/W R/W R/W R/W TGR Interrupt Enable A 0 Interrupt requests (TGIA) by TGFA bit disabled 1 Interrupt requests (TGIA) by TGFA bit enabled TGR Interrupt Enable B 0 Interrupt requests (TGIB) by TGFB bit disabled 1 Interrupt requests (TGIB) by TGFB bit enabled TGR Interrupt Enable C 0 Interrupt requests (TGIC) by TGFC bit disabled 1 Interrupt requests (TGIC) by TGFC bit enabled TGR Interrupt Enable D 0 Interrupt requests (TGID) by TGFD bit disabled 1 Interrupt requests (TGID) by TGFD bit enabled Overflow Interrupt Enable 0 Interrupt requests (TCIV) by TCFV disabled 1 Interrupt requests (TCIV) by TCFV enabled A/D Conversion Start Request Enable 0 A/D conversion start request generation disabled 1 A/D conversion start request generation enabled Page 992 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TSR3--Timer Status Register 3 Bit H'FE85 TPU3 7 6 5 4 3 2 1 0 -- -- -- TCFV TGFD TGFC TGFB TGFA Initial value 1 1 0 0 0 0 0 0 Read/Write -- -- -- R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* Input Capture/Output Compare Flag A 0 [Clearing conditions] * When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFA after reading TGFA = 1 1 [Setting conditions] * When TCNT = TGRA while TGRA is functioning as output compare register * When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register Input Capture/Output Compare Flag B 0 [Clearing conditions] * When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFB after reading TGFB = 1 1 [Setting conditions] * When TCNT = TGRB while TGRB is functioning as output compare register * When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register Input Capture/Output Compare Flag C 0 [Clearing conditions] * When DTC is activated by TGIC interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFC after reading TGFC = 1 1 [Setting conditions] * When TCNT = TGRC while TGRC is functioning as output compare register * When TCNT value is transferred to TGRC by input capture signal while TGRC is functioning as input capture register Input Capture/Output Compare Flag D 0 [Clearing conditions] * When DTC is activated by TGID interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFD after reading TGFD = 1 1 [Setting conditions] * When TCNT = TGRD while TGRD is functioning as output compare register * When TCNT value is transferred to TGRD by input capture signal while TGRD is functioning as input capture register Overflow Flag 0 [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 1 [Setting condition] When the TCNT value overflows (changes from H'FFFF to H'0000) Note: * Can only be written with 0 for flag clearing. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 993 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCNT3--Timer Counter 3 H'FE86 TPU3 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Up-counter TGR3A--Timer General Register 3A TGR3B--Timer General Register 3B TGR3C--Timer General Register 3C TGR3D--Timer General Register 3D Bit Initial value Read/Write Page 994 of 1126 H'FE88 H'FE8A H'FE8C H'FE8E TPU3 TPU3 TPU3 TPU3 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCR4--Timer Control Register 4 Bit H'FE90 TPU4 7 6 5 4 3 2 1 0 -- CCLR1 CCLR0 CKEG1 CKEG0 TPSC2 TPSC1 TPSC0 Initial value 0 0 0 0 0 0 0 0 Read/Write -- R/W R/W R/W R/W R/W R/W R/W Time Prescaler 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /4 1 0 Internal clock: counts on /16 1 Internal clock: counts on /64 1 0 0 External clock: counts on TCLKA pin input 1 External clock: counts on TCLKC pin input 1 0 Internal clock: counts on /1024 1 Counts on TCNT5 overflow/underflow Note: This setting is ignored when channel 4 is in phase counting mode. Clock Edge 0 0 Count at rising edge 1 Count at falling edge 1 -- Count at both edges Note: Internal clock edge selection is valid when the input clock is /4 or slower. This setting is ignored if the input clock is /1, or when overflow/underflow of another channel is selected. Counter Clear 0 0 TCNT clearing disabled 1 TCNT cleared by TGRA compare match/input capture 1 0 TCNT cleared by TGRB compare match/input capture 1 TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation* Note: * Synchronous operation setting is performed by setting the SYNC bit in TSYR to 1. Note: Bit 7 is reserved in channel 4. It is always read as 0 and cannot be modified. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 995 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TMDR4--Timer Mode Register 4 Bit H'FE91 TPU4 7 6 5 4 3 2 1 0 -- -- -- -- MD3 MD2 MD1 MD0 Initial value 1 1 0 0 0 0 0 0 Read/Write -- -- -- -- R/W R/W R/W R/W Mode 0 0 0 Normal operation 1 Reserved 0 PWM mode 1 1 PWM mode 2 0 Phase counting mode 1 1 Phase counting mode 2 1 0 Phase counting mode 3 1 Phase counting mode 4 * * -- 0 1 1 1 * 0 *: Don't care Note: MD3 is a reserved bit. In a write, it should always be written with 0. Page 996 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIOR4--Timer I/O Control Register 4 Bit H'FE92 TPU4 7 6 5 4 3 2 1 0 IOB3 IOB2 IOB1 IOB0 IOA3 IOA2 IOA1 IOA0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W TGR4A I/O Control 0 0 0 1 1 0 1 0 TGR4A is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 1 1 * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 0 TGR4A is 1 input capture * register * Capture input source is TIOCA4 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at generation of TGR3A source is TGR3A compare match/input capture compare match/ input capture *: Don't care TGR4B I/O Control 0 0 0 1 1 0 1 0 TGR4B is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 1 1 * 0 TGR4B is 1 input capture * register * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match Capture input source is TIOCB4 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at generation of TGR3C source is TGR3C compare match/input capture compare match/ input capture *: Don't care REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 997 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIER4--Timer Interrupt Enable Register 4 Bit H'FE94 TPU4 7 6 5 4 3 2 1 0 TTGE -- TCIEU TCIEV -- -- TGIEB TGIEA Initial value 0 1 0 0 0 0 0 0 Read/Write R/W -- R/W R/W -- -- R/W R/W TGR Interrupt Enable A 0 Interrupt requests (TGIA) by TGFA bit disabled 1 Interrupt requests (TGIA) by TGFA bit enabled TGR Interrupt Enable B 0 Interrupt requests (TGIB) by TGFB bit disabled 1 Interrupt requests (TGIB) by TGFB bit enabled Overflow Interrupt Enable 0 Interrupt requests (TCIV) by TCFV disabled 1 Interrupt requests (TCIV) by TCFV enabled Underflow Interrupt Enable 0 Interrupt requests (TCIU) by TCFU disabled 1 Interrupt requests (TCIU) by TCFU enabled A/D Conversion Start Request Enable 0 A/D conversion start request generation disabled 1 A/D conversion start request generation enabled Page 998 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TSR4--Timer Status Register 4 H'FE95 TPU4 7 6 5 4 3 2 1 0 TCFD -- TCFU TCFV -- -- TGFB TGFA Initial value 1 1 0 0 0 0 0 0 Read/Write R -- R/(W)* R/(W)* -- -- R/(W)* R/(W)* Bit Input Capture/Output Compare Flag A 0 [Clearing conditions] * When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFA after reading TGFA = 1 1 [Setting conditions] * When TCNT = TGRA while TGRA is functioning as output compare register * When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register Input Capture/Output Compare Flag B 0 [Clearing conditions] * When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFB after reading TGFB = 1 1 [Setting conditions] * When TCNT = TGRB while TGRB is functioning as output compare register * When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register Overflow Flag 0 [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 1 [Setting condition] When the TCNT value overflows (changes from H'FFFF to H'0000) Underflow Flag 0 [Clearing condition] When 0 is written to TCFU after reading TCFU = 1 1 [Setting condition] When the TCNT value underflows (changes from H'0000 to H'FFFF) Count Direction Flag 0 1 TCNT counts down TCNT counts up Note: * Can only be written with 0 for flag clearing. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 999 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCNT4--Timer Counter 4 H'FE96 TPU4 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Up/down-counter* Note: * These counters can be used as up/down-counters only in phase counting mode or when counting overflow/underflow on another channel. In other cases they function as up-counters. TGR4A--Timer General Register 4A TGR4B--Timer General Register 4B Bit Initial value Read/Write Page 1000 of 1126 H'FE98 H'FE9A TPU4 TPU4 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCR5--Timer Control Register 5 Bit H'FEA0 TPU5 7 6 5 4 3 2 1 0 -- CCLR1 CCLR0 CKEG1 CKEG0 TPSC2 TPSC1 TPSC0 Initial value 0 0 0 0 0 0 0 0 Read/Write -- R/W R/W R/W R/W R/W R/W R/W Time Prescaler 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /4 1 0 Internal clock: counts on /16 1 Internal clock: counts on /64 1 0 0 External clock: counts on TCLKA pin input 1 External clock: counts on TCLKC pin input 1 0 Internal clock: counts on /256 1 External clock: counts on TCLKD pin input Note: This setting is ignored when channel 5 is in phase counting mode. Clock Edge 0 0 Count at rising edge 1 Count at falling edge 1 -- Count at both edges Note: Internal clock edge selection is valid when the input clock is /4 or slower. This setting is ignored if the input clock is /1, or when overflow/underflow of another channel is selected. Counter Clear 0 0 TCNT clearing disabled 1 TCNT cleared by TGRA compare match/input capture 1 0 TCNT cleared by TGRB compare match/input capture 1 TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation* Note: * Synchronous operation setting is performed by setting the SYNC bit in TSYR to 1. Note: Bit 7 is reserved in channel 5. It is always read as 0 and cannot be modified. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1001 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TMDR5--Timer Mode Register 5 Bit H'FEA1 TPU5 7 6 5 4 3 2 1 0 -- -- -- -- MD3 MD2 MD1 MD0 Initial value 1 1 0 0 0 0 0 0 Read/Write -- -- -- -- R/W R/W R/W R/W Mode 0 0 0 Normal operation 1 Reserved 0 PWM mode 1 1 PWM mode 2 0 Phase counting mode 1 1 Phase counting mode 2 1 0 Phase counting mode 3 1 Phase counting mode 4 * * -- 0 1 1 1 * 0 *: Don't care Note: MD3 is a reserved bit. In a write, it should always be written with 0. Page 1002 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIOR5--Timer I/O Control Register 5 H'FEA2 TPU5 7 6 5 4 3 2 1 0 IOB3 IOB2 IOB1 IOB0 IOA3 IOA2 IOA1 IOA0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit TGR5A I/O Control 0 0 0 1 1 0 1 1 * 0 1 0 TGR5A is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 Output disabled 1 Initial output is 1 output 0 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match 1 Toggle output at compare match 0 TGR5A is Capture input source is 1 input capture TIOCA5 pin * register Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care TGR5B I/O Control 0 0 0 1 1 0 1 1 * 0 1 0 TGR5B is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 Output disabled 1 Initial output is 1 output 0 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match 1 Toggle output at compare match 0 TGR5B is Capture input source is 1 input capture TIOCB5 pin * register Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1003 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIER5--Timer Interrupt Enable Register 5 Bit H'FEA4 TPU5 7 6 5 4 3 2 1 0 TTGE -- TCIEU TCIEV -- -- TGIEB TGIEA Initial value 0 1 0 0 0 0 0 0 Read/Write R/W -- R/W R/W -- -- R/W R/W TGR Interrupt Enable A 0 Interrupt requests (TGIA) by TGFA bit disabled 1 Interrupt requests (TGIA) by TGFA bit enabled TGR Interrupt Enable B 0 Interrupt requests (TGIB) by TGFB bit disabled 1 Interrupt requests (TGIB) by TGFB bit enabled Overflow Interrupt Enable 0 Interrupt requests (TCIV) by TCFV disabled 1 Interrupt requests (TCIV) by TCFV enabled Underflow Interrupt Enable 0 Interrupt requests (TCIU) by TCFU disabled 1 Interrupt requests (TCIU) by TCFU enabled A/D Conversion Start Request Enable 0 A/D conversion start request generation disabled 1 A/D conversion start request generation enabled Page 1004 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TSR5--Timer Status Register 5 H'FEA5 TPU5 7 6 5 4 3 2 1 0 TCFD -- TCFU TCFV -- -- TGFB TGFA Initial value 1 1 0 0 0 0 0 0 Read/Write R -- R/(W)* R/(W)* -- -- R/(W)* R/(W)* Bit Input Capture/Output Compare Flag A 0 [Clearing conditions] * When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFA after reading TGFA = 1 1 [Setting conditions] * When TCNT = TGRA while TGRA is functioning as output compare register * When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register Input Capture/Output Compare Flag B 0 [Clearing conditions] * When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFB after reading TGFB = 1 1 [Setting conditions] * When TCNT = TGRB while TGRB is functioning as output compare register * When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register Overflow Flag 0 [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 1 [Setting condition] When the TCNT value overflows (changes from H'FFFF to H'0000) Underflow Flag 0 [Clearing condition] When 0 is written to TCFU after reading TCFU = 1 1 [Setting condition] When the TCNT value underflows (changes from H'0000 to H'FFFF) Count Direction Flag 0 1 TCNT counts down TCNT counts up Note: * Can only be written with 0 for flag clearing. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1005 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCNT5--Timer Counter 5 H'FEA6 TPU5 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Up/down-counter* Note: * These counters can be used as up/down-counters only in phase counting mode or when counting overflow/underflow on another channel. In other cases they function as up-counters. TGR5A--Timer General Register 5A TGR5B--Timer General Register 5B Bit Initial value Read/Write H'FEA8 H'FEAA 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W TSTR--Timer Start Register Bit TPU5 TPU5 H'FEB0 TPU 7 6 5 4 3 2 1 0 -- -- CST5 CST4 CST3 CST2 CST1 CST0 Initial value 0 0 0 0 0 0 0 0 Read/Write -- -- R/W R/W R/W R/W R/W R/W Counter Start 0 TCNTn count operation is stopped 1 TCNTn performs count operation (n = 5 to 0) Note: If 0 is written to the CST bit during operation with the TIOC pin designated for output, the counter stops but the TIOC pin output compare output level is retained. If TIOR is written to when the CST bit is cleared to 0, the pin output level will be changed to the set initial output value. Page 1006 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TSYR--Timer Synchro Register Bit H'FEB1 TPU 7 6 5 4 3 2 1 0 -- -- SYNC5 SYNC4 SYNC3 SYNC2 SYNC1 SYNC0 Initial value 0 0 0 0 0 0 0 0 Read/Write -- -- R/W R/W R/W R/W R/W R/W Timer Synchro 0 TCNTn operates independently (TCNT presetting/ clearing is unrelated to other channels) 1 TCNTn performs synchronous operation TCNT synchronous presetting/synchronous clearing is possible (n = 5 to 0) Notes: 1. To set synchronous operation, the SYNC bits for at least two channels must be set to 1. 2. To set synchronous clearing, in addition to the SYNC bit , the TCNT clearing source must also be set by means of bits CCLR2 to CCLR0 in TCR. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1007 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register IPRA--Interrupt Priority Register A IPRB--Interrupt Priority Register B IPRC--Interrupt Priority Register C IPRD--Interrupt Priority Register D IPRE--Interrupt Priority Register E IPRF--Interrupt Priority Register F IPRG--Interrupt Priority Register G IPRH--Interrupt Priority Register H IPRJ--Interrupt Priority Register J IPRK--Interrupt Priority Register K IPRM--Interrupt Priority Register M H'FEC0 H'FEC1 H'FEC2 H'FEC3 H'FEC4 H'FEC5 H'FEC6 H'FEC7 H'FEC9 H'FECA H'FECC INT INT INT INT INT INT INT INT INT INT INT 7 6 5 4 3 2 1 0 -- IPR6 IPR5 IPR4 -- IPR2 IPR1 IPR0 Initial value 0 1 1 1 0 1 1 1 Read/Write -- R/W R/W R/W -- R/W R/W R/W Bit Correspondence between Interrupt Sources and IPR Settings Bits Register 2 to 0 6 to 4 IPRA IRQ0 IRQ1 IPRB IRQ2 IRQ4 IRQ3 IRQ5 IPRC --*1 DTC IPRD Watchdog timer 0 --*1 IPRE PC break A/D converter, watchdog timer 1 IPRF TPU channel 0 TPU channel 1 IPRG TPU channel 2 TPU channel 3 IPRH TPU channel 4 TPU channel 5 IPRJ --*1 SCI channel 0 IPRK SCI channel 1 --*2 IPRM PWM channel 1, 2 HCAN Notes: 1. Reserved. These bits are always read as 1 and cannot be modified. 2. Reserved. These bits are always read as 1 and should only be written with H'7. Page 1008 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register ABWCR--Bus Width Control Register Bit H'FED0 Bus Controller 7 6 5 4 3 2 1 0 ABW7 ABW6 ABW5 ABW4 ABW3 ABW2 ABW1 ABW0 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Modes 5 to 7 Mode 4 Area 7 to 0 Bus Width Control 0 Area n is designated for 16-bit access 1 Area n is designated for 8-bit access (n = 7 to 0) ASTCR--Access State Control Register H'FED1 Bus Controller 7 6 5 4 3 2 1 0 AST7 AST6 AST5 AST4 AST3 AST2 AST1 AST0 Bit Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Area 7 to 0 Access State Control 0 Area n is designated for 2-state access Wait state insertion in area n external space is disabled 1 Area n is designated for 3-state access Wait state insertion in area n external space is enabled (n = 7 to 0) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1009 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register WCRH--Wait Control Register H Bit H'FED2 Bus Controller 7 6 5 4 3 2 1 0 W71 W70 W61 W60 W51 W50 W41 W40 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Area 4 Wait Control 1 and 0 0 0 Program wait not inserted when external space area 4 is accessed 1 1 program wait state inserted when external space area 4 is accessed 1 0 2 program wait states inserted when external space area 4 is accessed 1 3 program wait states inserted when external space area 4 is accessed Area 5 Wait Control 1 and 0 0 0 Program wait not inserted when external space area 5 is accessed 1 1 program wait state inserted when external space area 5 is accessed 1 0 2 program wait states inserted when external space area 5 is accessed 1 3 program wait states inserted when external space area 5 is accessed Area 6 Wait Control 1 and 0 0 0 Program wait not inserted when external space area 6 is accessed 1 1 program wait state inserted when external space area 6 is accessed 1 0 2 program wait states inserted when external space area 6 is accessed 1 3 program wait states inserted when external space area 6 is accessed Area 7 Wait Control 1 and 0 0 0 Program wait not inserted when external space area 7 is accessed 1 1 program wait state inserted when external space area 7 is accessed 1 0 2 program wait states inserted when external space area 7 is accessed 1 3 program wait states inserted when external space area 7 is accessed Page 1010 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register WCRL--Wait Control Register L Bit H'FED3 Bus Controller 7 6 5 4 3 2 1 0 W31 W30 W21 W20 W11 W10 W01 W00 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Area 0 Wait Control 1 and 0 0 0 Program wait not inserted when external space area 0 is accessed 1 1 program wait state inserted when external space area 0 is accessed 1 0 2 program wait states inserted when external space area 0 is accessed 1 3 program wait states inserted when external space area 0 is accessed Area 1 Wait Control 1 and 0 0 0 Program wait not inserted when external space area 1 is accessed 1 1 program wait state inserted when external space area 1 is accessed 1 0 2 program wait states inserted when external space area 1 is accessed 1 3 program wait states inserted when external space area 1 is accessed Area 2 Wait Control 1 and 0 0 0 Program wait not inserted when external space area 2 is accessed 1 1 program wait state inserted when external space area 2 is accessed 1 0 2 program wait states inserted when external space area 2 is accessed 1 3 program wait states inserted when external space area 2 is accessed Area 3 Wait Control 1 and 0 0 0 Program wait not inserted when external space area 3 is accessed 1 1 program wait state inserted when external space area 3 is accessed 1 0 2 program wait states inserted when external space area 3 is accessed 1 3 program wait states inserted when external space area 3 is accessed REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1011 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register BCRH--Bus Control Register H H'FED4 7 6 ICIS1 ICIS0 Initial value 1 1 0 1 0 Read/Write R/W R/W R/W R/W R/W Bit 5 4 3 BRSTRM BRSTS1 BRSTS0 Bus Controller 2 1 0 -- -- -- 0 0 0 R/W R/W R/W Burst Cycle Select 0 0 Max. 4 words in burst access 1 Max. 8 words in burst access Burst Cycle Select 1 0 Burst cycle comprises 1 state 1 Burst cycle comprises 2 states Burst ROM Enable 0 Area 0 is basic bus interface 1 Area 0 is burst ROM interface Idle Cycle Insert 0 0 Idle cycle not inserted in case of successive external read and external write cycles 1 Idle cycle inserted in case of successive external read and external write cycles Idle Cycle Insert 1 Page 1012 of 1126 0 Idle cycle not inserted in case of successive external read cycles in different areas 1 Idle cycle inserted in case of successive external read cycles in different areas REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register BCRL--Bus Control Register L Bit H'FED5 Bus Controller 7 6 5 4 3 2 1 0 -- -- -- -- -- -- WDBE WAITE Initial value 0 0 0 0 1 0 0 0 Read/Write R/W R/W -- R/W R/W R/W R/W R/W Wait Enable 0 Wait input by WAIT pin disabled. WAIT pin can be used as I/O port. 1 Wait input by WAIT pin enabled Write Data Buffer Enable REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 0 Write data buffer function not used 1 Write data buffer function used Page 1013 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register RAMER--RAM Emulation Register Bit H'FEDB Flash Memory 7 6 5 4 3 2 1 0 -- -- -- -- RAMS RAM2 RAM1 RAM0 Initial value 0 0 0 0 0 0 0 0 Read/Write R R R/W R/W R/W R/W R/W R/W Flash Memory Area Selection RAMS RAM2 RAM1 RAM0 Addresses Block Name H'FFE000-H'FFE3FF RAM area 1 kB 0 * * H'000000-H'0003FF EB0 (1 kB) 1 0 0 H'000400-H'0007FF EB1 (1 kB) H'000800-H'000BFF EB2 (1 kB) H'000C00-H'000FFF EB3 (1 kB) * 1 1 0 1 *: Don't care RAM Select Page 1014 of 1126 0 Emulation not selected Program/erase-protection of all flash memory blocks is disabled 1 Emulation selected Program/erase-protection of all flash memory blocks is enabled REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register P1DR--Port 1 Data Register Bit H'FF00 Port 7 6 5 4 3 2 1 0 P17DR P16DR P15DR P14DR P13DR P12DR P11DR P10DR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W P2DR--Port 2 Data Register H'FF01 Port 7 6 5 4 3 2 1 0 P27DR P26DR P25DR P24DR P23DR P22DR P21DR P20DR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit P3DR--Port 3 Data Register Bit H'FF02 Port 7 6 5 4 3 2 1 0 P37DR P36DR P35DR P34DR P33DR P32DR P31DR P30DR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W P5DR--Port 5 Data Register Bit Initial value Read/Write H'FF04 7 6 5 4 3 2 1 0 -- -- -- -- -- P52DR P51DR P50DR 0 0 0 R/W R/W R/W Undefined Undefined Undefined Undefined Undefined -- -- -- -- PADR--Port A Data Register Bit Port -- H'FF09 Port 7 6 5 4 3 2 1 0 PA7DR PA6DR PA5DR PA4DR PA3DR PA2DR PA1DR PA0DR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1015 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PBDR--Port B Data Register Bit H'FF0A Port 7 6 5 4 3 2 1 0 PB7DR PB6DR PB5DR PB4DR PB3DR PB2DR PB1DR PB0DR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W PCDR--Port C Data Register H'FF0B Port 7 6 5 4 3 2 1 0 PC7DR PC6DR PC5DR PC4DR PC3DR PC2DR PC1DR PC0DR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit PDDR--Port D Data Register Bit H'FF0C Port 7 6 5 4 3 2 1 0 PD7DR PD6DR PD5DR PD4DR PD3DR PD2DR PD1DR PD0DR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W PEDR--Port E Data Register H'FF0D Port 7 6 5 4 3 2 1 0 PE7DR PE6DR PE5DR PE4DR PE3DR PE2DR PE1DR PE0DR Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit PFDR--Port F Data Register Bit H'FF0E Port 7 6 5 4 3 2 1 0 -- PF6DR PF5DR PF4DR PF3DR PF2DR -- PF0DR Initial value 0 0 0 0 0 0 Undefined 0 Read/Write R/W R/W R/W R/W R/W R/W -- R/W Page 1016 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCR0--Timer Control Register 0 H'FF10 TPU0 7 6 5 4 3 2 1 0 CCLR2 CCLR1 CCLR0 CKEG1 CKEG0 TPSC2 TPSC1 TPSC0 Bit Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Time Prescaler 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /4 1 0 Internal clock: counts on /16 1 Internal clock: counts on /64 1 0 0 External clock: counts on TCLKA pin input 1 0 External clock: counts on TCLKC pin input 1 External clock: counts on TCLKB pin input 1 External clock: counts on TCLKD pin input Clock Edge 0 0 Count at rising edge 1 Count at falling edge 1 -- Count at both edges Note: Internal clock edge selection is valid when the input clock is /4 or slower. This setting is ignored if the input clock is /1, or when overflow/underflow of another channel is selected. Counter Clear 0 0 0 TCNT clearing disabled 1 TCNT cleared by TGRA compare match/input capture 1 0 TCNT cleared by TGRB compare match/input capture 1 TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation*1 1 0 0 TCNT clearing disabled 1 TCNT cleared by TGRC compare match/input capture*2 1 0 TCNT cleared by TGRD compare match/input capture*2 1 TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation*1 Notes: 1. Synchronous operation setting is performed by setting the SYNC bit in TSYR to 1. 2. When TGRC or TGRD is used as a buffer register, TCNT is not cleared because the buffer register setting has priority, and compare match/input capture does not occur. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1017 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TMDR0--Timer Mode Register 0 Bit H'FF11 TPU0 7 6 5 4 3 2 1 0 -- -- BFB BFA MD3 MD2 MD1 MD0 Initial value 1 1 0 0 0 0 0 0 Read/Write -- -- R/W R/W R/W R/W R/W R/W Mode 0 0 0 Normal operation 1 Reserved 0 PWM mode 1 1 PWM mode 2 0 Phase counting mode 1 1 Phase counting mode 2 1 0 Phase counting mode 3 1 Phase counting mode 4 * * -- 0 1 1 1 * 0 *: Don't care Notes: 1. MD3 is a reserved bit. In a write, it should always be written with 0. 2. Phase counting mode cannot be set for channel 0. In this case, 0 should always be written to MD2. Buffer Operation A 0 TGRA operates normally 1 TGRA and TGRC used together for buffer operation Buffer Operation B Page 1018 of 1126 0 TGRB operates normally 1 TGRB and TGRD used together for buffer operation REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIOR0H--Timer I/O Control Register 0H Bit H'FF12 TPU0 7 6 5 4 3 2 1 0 IOB3 IOB2 IOB1 IOB0 IOA3 IOA2 IOA1 IOA0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W TGR0A I/O Control 0 0 0 1 1 0 1 0 TGR0A is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 1 1 * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 0 TGR0A is 1 input capture * register * Capture input source is TIOCA0 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT1 count-up/ source is channel count-down 1/count clock *: Don't care TGR0B I/O Control 0 0 0 1 1 0 1 0 TGR0B is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 1 1 * 0 TGR0B is 1 input capture * register * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match Capture input source is TIOCB0 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT1 count-up/ source is channel count-down*1 1/count clock *: Don't care Note: 1. When bits TPSC2 to TPSC0 in TCR1 are set to B'000 and /1 is used as the TCNT1 count clock, this setting is invalid and input capture is not generated. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1019 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIOR0L--Timer I/O Control Register 0L Bit H'FF13 TPU0 7 6 5 4 3 2 1 0 IOD3 IOD2 IOD1 IOD0 IOC3 IOC2 IOC1 IOC0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W TGR0C I/O Control 0 0 0 1 1 0 1 0 TGR0C is Output disabled 1 output Initial output is 0 compare 0 register*1 output 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 1 1 * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 0 TGR0C is 1 input capture * register*1 * Capture input source is TIOCC0 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT1 count-up/ source is channel count-down 1/count clock *: Don't care Note: 1. When the BFA bit in TMDR0 is set to 1 and TGR0C is used as a buffer register, this setting is invalid and input capture/output compare is not generated. TGR0D I/O Control 0 0 0 1 1 0 1 0 TGR0D is Output disabled 1 output Initial output is 0 compare 0 register*2 output 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 1 1 * 0 TGR0D is 1 input capture * register*2 * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match Capture input source is TIOCD0 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT1 count-up/ source is channel count-down*1 1/count clock *: Don't care Notes: 1. When bits TPSC2 to TPSC0 in TCR1 are set to B'000 and /1 is used as the TCNT1 count clock, this setting is invalid and input capture is not generated. 2. When the BFB bit in TMDR0 is set to 1 and TGR0D is used as a buffer register, this setting is invalid and input capture/output compare is not generated. Note: When TGRC or TGRD is designated for buffer operation, this setting is invalid and the register operates as a buffer register. Page 1020 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIER0--Timer Interrupt Enable Register 0 Bit H'FF14 TPU0 7 6 5 4 3 2 1 0 TTGE -- -- TCIEV TGIED TGIEC TGIEB TGIEA Initial value 0 1 0 0 0 0 0 0 Read/Write R/W -- -- R/W R/W R/W R/W R/W TGR Interrupt Enable A 0 Interrupt requests (TGIA) by TGFA bit disabled 1 Interrupt requests (TGIA) by TGFA bit enabled TGR Interrupt Enable B 0 Interrupt requests (TGIB) by TGFB bit disabled 1 Interrupt requests (TGIB) by TGFB bit enabled TGR Interrupt Enable C 0 Interrupt requests (TGIC) by TGFC bit disabled 1 Interrupt requests (TGIC) by TGFC bit enabled TGR Interrupt Enable D 0 Interrupt requests (TGID) by TGFD bit disabled 1 Interrupt requests (TGID) by TGFD bit enabled Overflow Interrupt Enable 0 Interrupt requests (TCIV) by TCFV disabled 1 Interrupt requests (TCIV) by TCFV enabled A/D Conversion Start Request Enable 0 A/D conversion start request generation disabled 1 A/D conversion start request generation enabled REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1021 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TSR0--Timer Status Register 0 Bit Initial value TPU0 7 6 5 4 3 2 1 0 -- -- -- TCFV TGFD TGFC TGFB TGFA 1 1 0 0 0 0 0 0 -- R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* -- Read/Write H'FF15 -- Input Capture/Output Compare Flag A 0 [Clearing conditions] * When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFA after reading TGFA = 1 1 [Setting conditions] * When TCNT = TGRA while TGRA is functioning as output compare register * When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register Input Capture/Output Compare Flag B 0 [Clearing conditions] * When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFB after reading TGFB = 1 1 [Setting conditions] * When TCNT = TGRB while TGRB is functioning as output compare register * When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register Input Capture/Output Compare Flag C 0 [Clearing conditions] * When DTC is activated by TGIC interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFC after reading TGFC = 1 1 [Setting conditions] * When TCNT = TGRC while TGRC is functioning as output compare register * When TCNT value is transferred to TGRC by input capture signal while TGRC is functioning as input capture register Input Capture/Output Compare Flag D 0 [Clearing conditions] * When DTC is activated by TGID interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFD after reading TGFD = 1 1 [Setting conditions] * When TCNT = TGRD while TGRD is functioning as output compare register * When TCNT value is transferred to TGRD by input capture signal while TGRD is functioning as input capture register Overflow Flag 0 [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 1 [Setting condition] When the TCNT value overflows (changes from H'FFFF to H'0000) Note: * Can only be written with 0 for flag clearing. Page 1022 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCNT0--Timer Counter 0 H'FF16 TPU0 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Up-counter TGR0A--Timer General Register 0A TGR0B--Timer General Register 0B TGR0C--Timer General Register 0C TGR0D--Timer General Register 0D Bit Initial value Read/Write TPU0 TPU0 TPU0 TPU0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H'FF18 H'FF1A H'FF1C H'FF1E Page 1023 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCR1--Timer Control Register 1 Bit H'FF20 TPU1 7 6 5 4 3 2 1 0 -- CCLR1 CCLR0 CKEG1 CKEG0 TPSC2 TPSC1 TPSC0 Initial value 0 0 0 0 0 0 0 0 Read/Write -- R/W R/W R/W R/W R/W R/W R/W Time Prescaler 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /4 1 0 Internal clock: counts on /16 1 Internal clock: counts on /64 1 0 0 External clock: counts on TCLKA pin input 1 External clock: counts on TCLKB pin input 1 0 Internal clock: counts on /256 1 Counts on TCNT2 overflow/underflow Note: This setting is ignored when channel 1 is in phase counting mode. Clock Edge 0 0 Count at rising edge 1 Count at falling edge 1 -- Count at both edges Note: Internal clock edge selection is valid when the input clock is /4 or slower. This setting is ignored if the input clock is /1, or when overflow/underflow of another channel is selected. Counter Clear 0 0 TCNT clearing disabled 1 TCNT cleared by TGRA compare match/input capture 1 0 TCNT cleared by TGRB compare match/input capture 1 TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation* Note: * Synchronous operation setting is performed by setting the SYNC bit in TSYR to 1. Note: Bit 7 is reserved in channel 1. It is always read as 0 and cannot be modified. Page 1024 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TMDR1--Timer Mode Register 1 Bit H'FF21 TPU1 7 6 5 4 3 2 1 0 -- -- -- -- MD3 MD2 MD1 MD0 Initial value 1 1 0 0 0 0 0 0 Read/Write -- -- -- -- R/W R/W R/W R/W Mode 0 0 0 Normal operation 1 Reserved 0 PWM mode 1 1 PWM mode 2 0 Phase counting mode 1 1 Phase counting mode 2 1 0 Phase counting mode 3 1 Phase counting mode 4 * * -- 0 1 1 1 * 0 *: Don't care Note: MD3 is a reserved bit. In a write, it should always be written with 0. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1025 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIOR1--Timer I/O Control Register 1 Bit H'FF22 TPU1 7 6 5 4 3 2 1 0 IOB3 IOB2 IOB1 IOB0 IOA3 IOA2 IOA1 IOA0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W TGR1A I/O Control 0 0 0 1 1 0 1 0 TGR1A is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 1 1 * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 0 TGR1A is 1 input capture * register * Capture input source is TIOCA1 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at generation of source is TGR0A channel 0/TGR0A compare match/ compare match/ input capture input capture *: Don't care TGR1B I/O Control 0 0 0 1 1 0 1 0 TGR1B is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 Output disabled 1 Initial output is 1 output 0 1 1 0 0 1 1 * 0 TGR1B is 1 input capture * register * 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match Capture input source is TIOCB1 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at generation of TGR0C source is TGR0C compare match/input capture compare match/ input capture *: Don't care Page 1026 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIER1--Timer Interrupt Enable Register 1 Bit H'FF24 TPU1 7 6 5 4 3 2 1 0 TTGE -- TCIEU TCIEV -- -- TGIEB TGIEA Initial value 0 1 0 0 0 0 0 0 Read/Write R/W -- R/W R/W -- -- R/W R/W TGR Interrupt Enable A 0 Interrupt requests (TGIA) by TGFA bit disabled 1 Interrupt requests (TGIA) by TGFA bit enabled TGR Interrupt Enable B 0 Interrupt requests (TGIB) by TGFB bit disabled 1 Interrupt requests (TGIB) by TGFB bit enabled Overflow Interrupt Enable 0 Interrupt requests (TCIV) by TCFV disabled 1 Interrupt requests (TCIV) by TCFV enabled Underflow Interrupt Enable 0 Interrupt requests (TCIU) by TCFU disabled 1 Interrupt requests (TCIU) by TCFU enabled A/D Conversion Start Request Enable 0 A/D conversion start request generation disabled 1 A/D conversion start request generation enabled REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1027 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TSR1--Timer Status Register 1 H'FF25 TPU1 7 6 5 4 3 2 1 0 TCFD -- TCFU TCFV -- -- TGFB TGFA Initial value 1 1 0 0 0 0 0 0 Read/Write R -- R/(W)* R/(W)* -- -- R/(W)* R/(W)* Bit Input Capture/Output Compare Flag A 0 [Clearing conditions] * When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFA after reading TGFA = 1 1 [Setting conditions] * When TCNT = TGRA while TGRA is functioning as output compare register * When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register Input Capture/Output Compare Flag B 0 [Clearing conditions] * When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFB after reading TGFB = 1 1 [Setting conditions] * When TCNT = TGRB while TGRB is functioning as output compare register * When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register Overflow Flag 0 [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 1 [Setting condition] When the TCNT value overflows (changes from H'FFFF to H'0000) Underflow Flag 0 [Clearing condition] When 0 is written to TCFU after reading TCFU = 1 1 [Setting condition] When the TCNT value underflows (changes from H'0000 to H'FFFF) Count Direction Flag 0 1 TCNT counts down TCNT counts up Note: * Can only be written with 0 for flag clearing. Page 1028 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCNT1--Timer Counter 1 H'FF26 TPU1 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Up/down-counter* Note: * These counters can be used as up/down-counters only in phase counting mode or when counting overflow/underflow on another channel. In other cases they function as up-counters. TGR1A--Timer General Register 1A TGR1B--Timer General Register 1B Bit Initial value Read/Write TPU1 TPU1 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H'FF28 H'FF2A Page 1029 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCR2--Timer Control Register 2 Bit H'FF30 TPU2 7 6 5 4 3 2 1 0 -- CCLR1 CCLR0 CKEG1 CKEG0 TPSC2 TPSC1 TPSC0 Initial value 0 0 0 0 0 0 0 0 Read/Write -- R/W R/W R/W R/W R/W R/W R/W Time Prescaler 0 0 0 Internal clock: counts on /1 1 Internal clock: counts on /4 1 0 Internal clock: counts on /16 1 Internal clock: counts on /64 1 0 0 External clock: counts on TCLKA pin input 1 External clock: counts on TCLKB pin input 1 0 External clock: counts on TCLKC pin input 1 Internal clock: counts on /1024 Note: This setting is ignored when channel 2 is in phase counting mode. Clock Edge 0 0 Count at rising edge 1 Count at falling edge 1 -- Count at both edges Note: Internal clock edge selection is valid when the input clock is /4 or slower. This setting is ignored if the input clock is /1, or when overflow/underflow of another channel is selected. Counter Clear 0 0 TCNT clearing disabled 1 TCNT cleared by TGRA compare match/input capture 1 0 TCNT cleared by TGRB compare match/input capture 1 TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation* Note: * Synchronous operation setting is performed by setting the SYNC bit in TSYR to 1. Note: Bit 7 is reserved in channel 2. It is always read as 0 and cannot be modified. Page 1030 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TMDR2--Timer Mode Register 2 Bit H'FF31 TPU2 7 6 5 4 3 2 1 0 -- -- -- -- MD3 MD2 MD1 MD0 Initial value 1 1 0 0 0 0 0 0 Read/Write -- -- -- -- R/W R/W R/W R/W Mode 0 0 0 Normal operation 1 Reserved 0 PWM mode 1 1 PWM mode 2 0 Phase counting mode 1 1 Phase counting mode 2 1 0 Phase counting mode 3 1 Phase counting mode 4 * * -- 0 1 1 1 * 0 *: Don't care Note: MD3 is a reserved bit. In a write, it should always be written with 0. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1031 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIOR2--Timer I/O Control Register 2 H'FF32 TPU2 7 6 5 4 3 2 1 0 IOB3 IOB2 IOB1 IOB0 IOA3 IOA2 IOA1 IOA0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit TGR2A I/O Control 0 0 0 1 1 0 1 1 * 0 1 0 TGR2A is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 Output disabled 1 Initial output is 1 output 0 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match 1 Toggle output at compare match 0 TGR2A is Capture input source is 1 input capture TIOCA2 pin * register Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care TGR2B I/O Control 0 0 0 1 1 0 1 1 * 0 1 0 TGR2B is Output disabled 1 output Initial output is 0 compare output 0 register 1 0 Output disabled 1 Initial output is 1 output 0 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match 1 Toggle output at compare match 0 TGR2B is Capture input source is 1 input capture TIOCB2 pin * register Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care Page 1032 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TIER2--Timer Interrupt Enable Register 2 Bit H'FF34 TPU2 7 6 5 4 3 2 1 0 TTGE -- TCIEU TCIEV -- -- TGIEB TGIEA Initial value 0 1 0 0 0 0 0 0 Read/Write R/W -- R/W R/W -- -- R/W R/W TGR Interrupt Enable A 0 Interrupt requests (TGIA) by TGFA bit disabled 1 Interrupt requests (TGIA) by TGFA bit enabled TGR Interrupt Enable B 0 Interrupt requests (TGIB) by TGFB bit disabled 1 Interrupt requests (TGIB) by TGFB bit enabled Overflow Interrupt Enable 0 Interrupt requests (TCIV) by TCFV disabled 1 Interrupt requests (TCIV) by TCFV enabled Underflow Interrupt Enable 0 Interrupt requests (TCIU) by TCFU disabled 1 Interrupt requests (TCIU) by TCFU enabled A/D Conversion Start Request Enable 0 A/D conversion start request generation disabled 1 A/D conversion start request generation enabled REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1033 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TSR2--Timer Status Register 2 H'FF35 TPU2 7 6 5 4 3 2 1 0 TCFD -- TCFU TCFV -- -- TGFB TGFA Initial value 1 1 0 0 0 0 0 0 Read/Write R -- R/(W)* R/(W)* -- -- R/(W)* R/(W)* Bit Input Capture/Output Compare Flag A 0 [Clearing conditions] * When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFA after reading TGFA = 1 1 [Setting conditions] * When TCNT = TGRA while TGRA is functioning as output compare register * When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register Input Capture/Output Compare Flag B 0 [Clearing conditions] * When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFB after reading TGFB = 1 1 [Setting conditions] * When TCNT = TGRB while TGRB is functioning as output compare register * When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register Overflow Flag 0 [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 1 [Setting condition] When the TCNT value overflows (changes from H'FFFF to H'0000) Underflow Flag 0 [Clearing condition] When 0 is written to TCFU after reading TCFU = 1 1 [Setting condition] When the TCNT value underflows (changes from H'0000 to H'FFFF) Count Direction Flag 0 1 TCNT counts down TCNT counts up Note: * Can only be written with 0 for flag clearing. Page 1034 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCNT2--Timer Counter 2 H'FF36 TPU2 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Up/down-counter* Note: * These counters can be used as up/down-counters only in phase counting mode or when counting overflow/underflow on another channel. In other cases they function as up-counters. TGR2A--Timer General Register 2A TGR2B--Timer General Register 2B Bit Initial value Read/Write TPU2 TPU2 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H'FF38 H'FF3A Page 1035 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCSR0--Timer Control/Status Register 0 Bit H'FF74(W), H'FF74(R) WDT0 7 6 5 4 3 2 1 0 OVF WT/IT TME -- -- CKS2 CKS1 CKS0 Initial value 0 0 0 1 1 0 0 0 Read/Write R/(W)* R/W R/W -- -- R/W R/W R/W Clock Select 2 to 0 CKS2 CKS1 CKS0 0 0 1 1 0 1 Clock Overflow Period* (where = 20 MHz) 0 /2 25.6 s 1 /64 819.2 s 0 /128 1.6 ms 1 /512 6.6 ms 0 /2048 26.2 ms 1 /8192 104.9 ms 0 /32768 419.4 ms 1 /131072 1.68 s Note: * An overflow period is the time interval between the start of counting up from H'00 on the TCNT and the occurrence of a TCNT overflow. Timer Enable 0 TCNT is initialized to H'00 and halted 1 TCNT counts Timer Mode Select 0 Interval timer mode: WDT0 requests an interval timer interrupt (WOVI) from the CPU when the TCNT overflows 1 Watchdog timer mode: A reset is issued when the TCNT overflows if the RSTE bit of RSTCSR is set to 1* Note: * For details see section 12.2.3, Reset Control/Status Register (RSTCSR). Overflow Flag 0 [Clearing conditions] * Cleared when 0 is written to the TME bit (Only applies to WDT1) * Cleared by reading TCSR when OVF = 1, then write 0 in OVF 1 [Setting condition] When TCNT overflows (changes from H'FF to H'00) (When internal reset request generation is selected in watchdog timer mode, OVF is cleared automatically by the internal reset) Note: * Only a 0 may be written to this bit to clear the flag. TCSR0 register differs from other registers in being more difficult to write to. For details see section 12.2.4, Notes on Register Access. Page 1036 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCNT0--Timer Counter 0 H'FF74(W), H'FF75(R) WDT0 Bit 7 6 5 4 3 2 1 0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Up-counter Note: TCNT is write-protected by a password to prevent accidental overwriting. For details see section 12.2.4, Notes on Register Access. RSTCSR--Reset Control/Status Register Bit H'FF76(W), H'FF77(R) WDT0 7 6 5 4 3 2 1 0 WOVF RSTE -- -- -- -- -- -- Initial value 0 0 0 1 1 1 1 1 Read/Write R/(W)* R/W -- -- -- -- -- -- Reset Enable 0 Reset signal is not generated if TCNT overflows* 1 Reset signal is generated if TCNT overflows Note: * The modules within the H8S/2646 are not reset, but TCNT and TCSR within the WDT are reset. Watchdog Overflow Flag 0 [Clearing condition] Cleared by reading TCSR when WOVF = 1, then writing 0 to WOVF 1 [Setting condition] Set when TCNT overflows (changed from H'FF to H'00) during watchdog timer operation Note: * Can only be written with 0 for flag clearing. RSTCSR is write-protected by a password to prevent accidential overwriting. For details see section 12.2.4, Notes on Register Access. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1037 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SMR0--Serial Mode Register 0 Bit H'FF78 SCI0 7 6 5 4 3 2 1 0 C/A CHR PE O/E STOP MP CKS1 CKS0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Clock Select 1 and 0 0 1 0 clock 1 /4 clock 0 /16 clock 1 /64 clock Multiprocessor Mode 0 Multiprocessor function disabled 1 Multiprocessor format selected Stop Bit Length 0 1 stop bit: In transmission, a single 1 bit (stop bit) is added to the end of a transmit character before it is sent. 1 2 stop bits: In transmission, two 1 bits (stop bits) are added to the end of a transmit character before it is sent. Parity Mode 0 Even parity*3 1 Odd parity*4 Parity Enable 0 Parity bit addition and checking disabled 1 Parity bit addition and checking enabled*2 Character Length 0 8-bit data 1 7-bit data*1 Communication Mode 0 Asynchronous mode 1 Synchronous mode Page 1038 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Notes: 1. When 7-bit data is selected, the MSB (bit 7) of TDR is not transmitted, and it is not possible to choose between LSB-first or MSB-first transfer. 2. When the PE bit is set to 1, the parity (even or odd) specified by the O/E bit is added to transmit data before transmission. In reception, the parity bit is checked for the parity (even or odd) specified by the O/E bit. 3. When even parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is even. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is even. 4. When odd parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is odd. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is odd. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1039 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SMR0--Serial Mode Register 0 H'FF78 SCI0, Smart Card Interface 0 7 6 5 4 3 2 1 0 GM BLK PE O/E BCP1 BCP0 CKS1 CKS0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit Clock Select 1 and 0 0 0 clock 1 /4 clock 1 0 /16 clock 1 /64 clock Basic Clock Pulse 0 1 0 32 clock periods 1 64 clock periods 0 372 clock periods 1 256 clock periods Parity Mode 0 Even parity*2 1 Odd parity*3 Parity Enable 0 Parity bit addition and checking disabled 1 Parity bit addition and checking enabled*1 Block Transfer Mode 0 Normal Smart Card interface mode operation * Error signal transmission/detection and automatic data retransmission performed * TXI interrupt generated by TEND flag * TEND flag set 12.5 etu after start of transmission (11.0 etu in GSM mode) 1 Block transfer mode operation * Error signal transmission/detection and automatic data retransmission not performed * TXI interrupt generated by TDRE flag * TEND flag set 11.5 etu after start of transmission (11.0 etu in GSM mode) GSM Mode 0 Normal smart card interface mode operation * TEND flag generation 12.5 etu (11.5 etu in block transfer mode) after beginning of start bit * Clock output ON/OFF control only 1 GSM mode smart card interface mode operation * TEND flag generation 11.0 etu after beginning of start bit * High/low fixing control possible in addition to clock output ON/OFF control (set by SCR) Note: etu: Elementary time unit (time for transfer of 1 bit) Page 1040 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Notes: When the smart card interface is used, be sure to make the 1 setting shown for bit 5. 1. When the PE bit is set to 1, the parity (even or odd) specified by the O/E bit is added to transmit data before transmission. In reception, the parity bit is checked for the parity (even or odd) specified by the O/E bit. 2. When even parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is even. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is even. 3. When odd parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is odd. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is odd. BRR0--Bit Rate Register 0 H'FF79 SCI0, Smart Card Interface 0 Bit 7 6 5 4 3 2 1 0 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Set the serial transmit/receive bit rate Note: For details see section 13.2.8, Bit Rate Register (BRR). REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1041 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SCR0--Serial Control Register 0 Bit H'FF7A SCI0 7 6 5 4 3 2 1 0 TIE RIE TE RE MPIE TEIE CKE1 CKE0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Clock Enable 1 and 0 0 0 Asynchronous mode Internal clock/SCK pin functions as I/O port Internal clock/SCK pin Clocked synchronous mode functions as serial clock output 1 Asynchronous mode Internal clock/SCK pin functions as clock output*9 Clocked Internal clock/SCK pin synchronous mode functions as serial clock output 1 0 Asynchronous mode External clock/SCK pin functions as clock input*10 Clocked External clock/SCK pin synchronous mode functions as serial clock input 1 Asynchronous mode External clock/SCK pin functions as clock input*10 Clocked External clock/SCK pin synchronous mode functions as serial clock input Transmit End Interrupt Enable 0 Transmit-end interrupt (TEI) request disabled*8 1 Transmit-end interrupt (TEI) request enabled*8 Multiprocessor Interrupt Enable 0 Multiprocessor interrupts disabled (normal reception mode performed) [Clearing conditions] * When the MPIE bit is cleared to 0 * When MPB = 1 data is received 1 Multiprocessor interrupts enabled*7 Receive interrupt (RXI) requests, receive-error interrupt (ERI) requests, and setting of the RDRF, FER, and ORER flags in SSR are disabled until data with the multiprocessor bit set to 1 is received Transmit Interrupt Enable 0 1 Transmit-data-empty interrupt (TXI) request disabled*1 Transmit-data-empty interrupt (TXI) request enabled Receive Enable Receive Interrupt Enable 0 1 Receive-data-full interrupt (RXI) request and receive-error interrupt (ERI) request disabled*2 Receive-data-full interrupt (RXI) request and receive-error interrupt (ERI) request enabled Page 1042 of 1126 0 Reception disabled*5 1 Reception enabled*6 Transmit Enable 0 Transmission disabled*3 1 Transmission enabled*4 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Notes: 1. TXI interrupt request cancellation can be performed by reading 1 from the TDRE flag, then clearing it to 0, or clearing the TIE bit to 0. 2. RXI and ERI interrupt request cancellation can be performed by reading 1 from the RDRF flag, or the FER, PER, or ORER flag, then clearing the flag to 0, or clearing the RIE bit to 0. 3. The TDRE flag in SSR is fixed at 1. 4. In this state, serial transmission is started when transmit data is written to TDR and the TDRE flag in SSR is cleared to 0. SMR setting must be performed to decide the transfer format before setting the TE bit to 1. 5. Clearing the RE bit to 0 does not affect the RDRF, FER, PER, and ORER flags, which retain their states. 6. Serial reception is started in this state when a start bit is detected in asynchronous mode or serial clock input is detected in clocked synchronous mode. SMR setting must be performed to decide the transfer format before setting the RE bit to 1. 7. When receive data including MPB = 0 is received, receive data transfer from RSR to RDR, receive error detection, and setting of the RDRF, FER, and ORER flags in SSR , is not performed. When receive data including MPB = 1 is received, the MPB bit in SSR is set to 1, the MPIE bit is cleared to 0 automatically, and generation of RXI and ERI interrupts (when the TIE and RIE bits in SCR are set to 1) and FER and ORER flag setting is enabled. 8. TEI cancellation can be performed by reading 1 from the TDRE flag in SSR, then clearing it to 0 and clearing the TEND flag to 0, or clearing the TEIE bit to 0. 9. Outputs a clock of the same frequency as the bit rate. 10. Inputs a clock with a frequency 16 times the bit rate. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1043 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SCR0--Serial Control Register 0 H'FF7A SCI0, Smart Card Interface 0 7 6 5 4 3 2 1 0 TIE RIE TE RE MPIE TEIE CKE1 CKE0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit Clock Enable 1 and 0 SCMR SMR SCR Setting SMIF C/A, GM CKE1 0 1 SCK Pin Function CKE0 See the SCI 0 0 1 1 0 Operates as port I/O pin 1 Outputs clock as SCK output pin 0 Operates as SCK output pin, with output fixed low 1 Outputs clock as SCK output pin 0 Operates as SCK output pin, with output fixed high 1 Outputs clock as SCK output pin Operate in the same way as for the nomal SCI. TDR0--Transmit Data Register 0 Bit 7 6 H'FF7B 5 4 SCI0, Smart Card Interface 0 3 2 1 0 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Store serial transmit data Page 1044 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SSR0--Serial Status Register 0 Bit Initial value Read/Write H'FF7C SCI0 7 6 5 4 3 2 1 0 TDRE RDRF ORER FER PER TEND MPB MPBT 1 0 0 0 0 1 0 0 R R R/W *9 R/(W) *9 R/(W) *9 R/(W) *9 *9 R/(W) R/(W) Multiprocessor Bit Transfer 0 Data with a 0 multi-processor bit is transmitted 1 Data with a 1 multi-processor bit is transmitted Multiprocessor Bit 0 *7 [Clearing condition] When data with a 0 multiprocessor bit is received 1 [Setting condition] When data with a 1 multiprocessor bit is received Transmit End 0 [Clearing conditions] * When 0 is written in TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR 1 [Setting conditions] * When the TE bit in SCR is 0 * When TDRE = 1 at transmission of the last bit of a 1-byte serial transmit character Parity Error 0 [Clearing condition] When 0 is written in PER after reading PER = 1 1 [Setting condition] When, in reception, the number of 1 bits in the receive data plus the parity bit does not match the parity setting (even or odd) specified by the O/E bit in SMR*6 *5 Framing Error 0 [Clearing condition] When 0 is written in FER after reading FER = 1 1 [Setting condition] When the SCI checks whether the stop bit at the end of the receive data when reception ends, and the stop bit is 0*4 *3 Overrun Error 0 [Clearing condition] When 0 is written in ORER after reading ORER = 1 1 [Setting condition] *2 When the next serial reception is completed while RDRF = 1 *1 Receive Data Register Full *8 0 [Clearing conditions] * When 0 is written in RDRF after reading RDRF = 1 * When the DTC is activated by an RXI interrupt and reads data from RDR 1 [Setting condition] When serial reception ends normally and receive data is transferred from RSR to RDR Transmit Data Register Empty 0 [Clearing conditions] * When 0 is written in TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR 1 [Setting conditions] * When the TE bit in SCR is 0 * When data is transferred from TDR to TSR and data can be written in TDR REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1045 of 1126 Appendix B Internal I/O Register H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Notes: 1. The ORER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 2. The receive data prior to the overrun error is retained in RDR, and the data received subsequently is lost. Also, subsequent serial reception cannot be continued while the ORER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. 3. The FER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 4. In 2-stop-bit mode, only the first stop bit is checked for a value of 0; the second stop bit is not checked. If a framing error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the FER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. 5. The PER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 6. If a parity error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the PER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. 7. Retains its previous state when the RE bit in SCR is cleared to 0 with multiprocessor format. 8. RDR and the RDRF flag are not affected and retain their previous values when an error is detected during reception or when the RE bit in SCR is cleared to 0. If reception of the next data is completed while the RDRF flag is still set to 1, an overrun error will occur and the receive data will be lost. 9. Only 0 can be written, to clear the flag. Page 1046 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SSR0--Serial Status Register 0 Bit H'FF7C SCI0, Smart Card Interface 0 7 6 5 4 3 2 1 0 TDRE RDRF ORER ERS PER TEND MPB MPBT Initial value 1 0 0 0 0 1 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R R R/W Operate in the same way as for the normal SCI. Error Signal Status 0 Normal reception, with no error signal [Clearing condition] * Upon reset, and in standby mode or module stop mode * When 0 is written to ERS after reading ERS = 1 1 Error signal sent from receiver indicating detection of parity error [Setting condition] When the low level of the error signal is sampled Note: Clearing the TE bit in SCR to 0 does not affect the ERS flag, which retains its previous state. Operate in the same way as for the normal SCI. Note: * Only 0 can be written, to clear the flag. RDR0--Receive Data Register 0 Bit 7 6 H'FF7D 5 4 SCI0, Smart Card Interface 0 3 2 1 0 Initial value 0 0 0 0 0 0 0 0 Read/Write R R R R R R R R Store serial receive data REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1047 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SCMR0--Smart Card Mode Register 0 Bit H'FF7E SCI0, Smart Card Interface 0 7 6 5 4 3 2 1 0 -- -- -- -- SDIR SINV -- SMIF Initial value 1 1 1 1 0 0 1 0 Read/Write -- -- -- -- R/W R/W -- R/W Smart Card Interface Mode Select 0 Operates as normal SCI (smart card interface function disabled) 1 Smart card interface function enabled Smart Card Data Invert 0 TDR contents are transmitted without modification Receive data is stored in RDR without modification 1 TDR contents are inverted before being transmitted Receive data is stored in RDR in inverted form Smart Card Data Transfer Direction Page 1048 of 1126 0 TDR contents are transmitted LSB-first Receive data is stored in RDR LSB-first 1 TDR contents are transmitted MSB-first Receive data is stored in RDR MSB-first REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SMR1--Serial Mode Register 1 Bit H'FF80 SCI1 7 6 5 4 3 2 1 0 C/A CHR PE O/E STOP MP CKS1 CKS0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Clock Select 1 and 0 0 1 0 clock 1 /4 clock 0 /16 clock 1 /64 clock Multiprocessor Mode 0 Multiprocessor function disabled 1 Multiprocessor format selected Stop Bit Length 0 1 stop bit: In transmission, a single 1 bit (stop bit) is added to the end of a transmit character before it is sent. 1 2 stop bits: In transmission, two 1 bits (stop bits) are added to the end of a transmit character before it is sent. Parity Mode 0 Even parity*3 1 Odd parity*4 Parity Enable 0 Parity bit addition and checking disabled 1 Parity bit addition and checking enabled*2 Character Length 0 8-bit data 1 7-bit data*1 Communication Mode 0 Asynchronous mode 1 Clocked synchronous mode REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1049 of 1126 Appendix B Internal I/O Register H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Notes: 1. When 7-bit data is selected, the MSB (bit 7) of TDR is not transmitted and it is not possible to choose between LSB-first or MSB-first transfer. 2. When the PE bit is set to 1, the parity (even or odd) specified by the O/E bit is added to transmit data before transmission. In reception, the parity bit is checked for the parity (even or odd) specified by the O/E bit. 3. When even parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is even. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is even. 4. When odd parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is odd. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is odd. Page 1050 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SMR1--Serial Mode Register 1 H'FF80 SCI1, Smart Card Interface 1 7 6 5 4 3 2 1 0 GM BLK PE O/E BCP1 BCP0 CKS1 CKS0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit Clock Select 1 and 0 0 0 clock 1 /4 clock 1 0 /16 clock 1 /64 clock Basic Clock Pulse 0 1 0 32 clock periods 1 64 clock periods 0 372 clock periods 1 256 clock periods Parity Mode 0 Even parity*2 1 Odd parity*3 Parity Enable 0 Parity bit addition and checking disabled 1 Parity bit addition and checking enabled*1 Block Transfer Mode 0 Normal Smart Card interface mode operation * Error signal transmission/detection and automatic data retransmission performed * TXI interrupt generated by TEND flag * TEND flag set 12.5 etu after start of transmission (11.0 etu in GSM mode) 1 Block transfer mode operation * Error signal transmission/detection and automatic data retransmission not performed * TXI interrupt generated by TDRE flag * TEND flag set 11.5 etu after start of transmission (11.0 etu in GSM mode) GSM Mode 0 Normal smart card interface mode operation * TEND flag generation 12.5 etu (11.5 etu in block transfer mode) after beginning of start bit * Clock output ON/OFF control only 1 GSM mode smart card interface mode operation * TEND flag generation 11.0 etu after beginning of start bit * High/low fixing control possible in addition to clock output ON/OFF control (set by SCR) Note: etu: Elementary time unit (time for transfer of 1 bit) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1051 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Notes: When the smart card interface is used, be sure to make the 1 setting shown for bit 5. 1. When the PE bit is set to 1, the parity (even or odd) specified by the O/E bit is added to transmit data before transmission. In reception, the parity bit is checked for the parity (even or odd) specified by the O/E bit. 2. When even parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is even. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is even. 3. When odd parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is odd. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is odd. BRR1--Bit Rate Register 1 H'FF81 SCI1, Smart Card Interface 1 Bit 7 6 5 4 3 2 1 0 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Set the serial transmit/receive bit rate Note: For details see section 13.2.8, Bit Rate Register (BRR). Page 1052 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SCR1--Serial Control Register 1 Bit H'FF82 SCI1 7 6 5 4 3 2 1 0 TIE RIE TE RE MPIE TEIE CKE1 CKE0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Clock Enable 1 and 0 0 0 Asynchronous mode Internal clock/SCK pin functions as I/O port Internal clock/SCK pin Clocked synchronous mode functions as serial clock output 1 Asynchronous mode Internal clock/SCK pin functions as clock output*9 Clocked Internal clock/SCK pin synchronous mode functions as serial clock output 1 0 Asynchronous mode External clock/SCK pin functions as clock input*10 Clocked External clock/SCK pin synchronous mode functions as serial clock input 1 Asynchronous mode External clock/SCK pin functions as clock input*10 Clocked External clock/SCK pin synchronous mode functions as serial clock input Transmit End Interrupt Enable 0 Transmit-end interrupt (TEI) request disabled*8 1 Transmit-end interrupt (TEI) request enabled*8 Multiprocessor Interrupt Enable 0 Transmit Interrupt Enable 0 1 Transmit-data-empty interrupt (TXI) request disabled*1 1 Transmit-data-empty interrupt (TXI) request enabled 1 Receive-data-full interrupt (RXI) request and receive-error interrupt (ERI) request disabled*2 Receive-data-full interrupt (RXI) request and receive-error interrupt (ERI) request enabled REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Multiprocessor interrupts enabled*7 Receive interrupt (RXI) requests, receive-error interrupt (ERI) requests, and setting of the RDRF, FER, and ORER flags in SSR are disabled until data with the multiprocessor bit set to 1 is received Receive Enable Receive Interrupt Enable 0 Multiprocessor interrupts disabled (normal reception mode performed) [Clearing conditions] * When the MPIE bit is cleared to 0 * When MPB = 1 data is received 0 Reception disabled*5 1 Reception enabled*6 Transmit Enable 0 Transmission disabled*3 1 Transmission enabled*4 Page 1053 of 1126 Appendix B Internal I/O Register H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Notes: 1. TXI interrupt request cancellation can be performed by reading 1 from the TDRE flag, then clearing it to 0, or clearing the TIE bit to 0. 2. RXI and ERI interrupt request cancellation can be performed by reading 1 from the RDRF flag, or the FER, PER, or ORER flag, then clearing the flag to 0, or clearing the RIE bit to 0. 3. The TDRE flag in SSR is fixed at 1. 4. In this state, serial transmission is started when transmit data is written to TDR and the TDRE flag in SSR is cleared to 0. SMR setting must be performed to decide the transfer format before setting the TE bit to 1. 5. Clearing the RE bit to 0 does not affect the RDRF, FER, PER, and ORER flags, which retain their states. 6. Serial reception is started in this state when a start bit is detected in asynchronous mode or serial clock input is detected in clocked synchronous mode. SMR setting must be performed to decide the transfer format before setting the RE bit to 1. 7. When receive data including MPB = 0 is received, receive data transfer from RSR to RDR, receive error detection, and setting of the RDRF, FER, and ORER flags in SSR , is not performed. When receive data including MPB = 1 is received, the MPB bit in SSR is set to 1, the MPIE bit is cleared to 0 automatically, and generation of RXI and ERI interrupts (when the TIE and RIE bits in SCR are set to 1) and FER and ORER flag setting is enabled. 8. TEI cancellation can be performed by reading 1 from the TDRE flag in SSR, then clearing it to 0 and clearing the TEND flag to 0, or clearing the TEIE bit to 0. 9. Outputs a clock of the same frequency as the bit rate. 10. Inputs a clock with a frequency 16 times the bit rate. Page 1054 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SCR1--Serial Control Register 1 Bit H'FF82 SCI1, Smart Card Interface 1 7 6 5 4 3 2 1 0 TIE RIE TE RE MPIE TEIE CKE1 CKE0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Clock Enable 1 and 0 SCMR SMR SCR Setting SMIF C/A, GM CKE1 0 1 SCK Pin Function CKE0 See the SCI 0 0 1 1 0 Operates as port I/O pin 1 Outputs clock as SCK output pin 0 Operates as SCK output pin, with output fixed low 1 Outputs clock as SCK output pin 0 Operates as SCK output pin, with output fixed high 1 Outputs clock as SCK output pin Operate in the same way as for the normal SCI. TDR1--Transmit Data Register 1 H'FF83 SCI1, Smart Card Interface 1 Bit 7 6 5 4 3 2 1 0 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Store serial transmit data REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1055 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SSR1--Serial Status Register 1 Bit Initial value Read/Write H'FF84 SCI1 7 6 5 4 3 2 1 0 TDRE RDRF ORER FER PER TEND MPB MPBT 1 0 0 0 0 1 0 0 R R R/W *9 R/(W) *9 R/(W) *9 R/(W) *9 *9 R/(W) R/(W) Multiprocessor Bit Transfer 0 Data with a 0 multi-processor bit is transmitted 1 Data with a 1 multi-processor bit is transmitted Multiprocessor Bit 0 *7 [Clearing condition] When data with a 0 multiprocessor bit is received 1 [Setting condition] When data with a 1 multiprocessor bit is received Transmit End 0 [Clearing conditions] * When 0 is written in TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR 1 [Setting conditions] * When the TE bit in SCR is 0 * When TDRE = 1 at transmission of the last bit of a 1-byte serial transmit character Parity Error 0 [Clearing condition] When 0 is written in PER after reading PER = 1 1 [Setting condition] When, in reception, the number of 1 bits in the receive data plus the parity bit does not match the parity setting (even or odd) specified by the O/E bit in SMR*6 *5 Framing Error 0 [Clearing condition] When 0 is written in FER after reading FER = 1 1 *4 [Setting condition] When the SCI checks whether the stop bit at the end of the receive data when reception ends, and the stop bit is 0 *3 Overrun Error 0 [Clearing condition] When 0 is written in ORER after reading ORER = 1 1 [Setting condition] *2 When the next serial reception is completed while RDRF = 1 *1 Receive Data Register Full *8 0 [Clearing conditions] * When 0 is written in RDRF after reading RDRF = 1 * When the DTC is activated by an RXI interrupt and reads data from RDR 1 [Setting condition] When serial reception ends normally and receive data is transferred from RSR to RDR Transmit Data Register Empty 0 [Clearing conditions] * When 0 is written in TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR 1 [Setting conditions] * When the TE bit in SCR is 0 * When data is transferred from TDR to TSR and data can be written in TDR Page 1056 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Notes: 1. The ORER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 2. The receive data prior to the overrun error is retained in RDR, and the data received subsequently is lost. Also, subsequent serial reception cannot be continued while the ORER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. 3. The FER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 4. In 2-stop-bit mode, only the first stop bit is checked for a value of 0; the second stop bit is not checked. If a framing error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the FER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. 5. The PER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 6. If a parity error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the PER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. 7. Retains its previous state when the RE bit in SCR is cleared to 0 with multiprocessor format. 8. RDR and the RDRF flag are not affected and retain their previous values when an error is detected during reception or when the RE bit in SCR is cleared to 0. If reception of the next data is completed while the RDRF flag is still set to 1, an overrun error will occur and the receive data will be lost. 9. Only 0 can be written, to clear the flag. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1057 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SSR1--Serial Status Register 1 Bit H'FF84 SCI1, Smart Card Interface 1 7 6 5 4 3 2 1 0 TDRE RDRF ORER ERS PER TEND MPB MPBT Initial value 1 0 0 0 0 1 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R R R/W Operate in the same way as for the normal SCI. Error Signal Status 0 Normal reception, with no error signal [Clearing condition] * Upon reset, and in standby mode or module stop mode * When 0 is written to ERS after reading ERS = 1 1 Error signal sent from receiver indicating detection of parity error [Setting condition] When the low level of the error signal is sampled Note: Clearing the TE bit in SCR to 0 does not affect the ERS flag, which retains its previous state. Operate in the same way as for the normal SCI. Note: * Only 0 can be written, to clear the flag. RDR1--Receive Data Register 1 H'FF85 SCI1, Smart Card Interface 1 Bit 7 6 5 4 3 2 1 0 Initial value 0 0 0 0 0 0 0 0 Read/Write R R R R R R R R Store serial receive data Page 1058 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SCMR1--Smart Card Mode Register 1 Bit H'FF86 SCI1, Smart Card Interface 1 7 6 5 4 3 2 1 0 -- -- -- -- SDIR SINV -- SMIF Initial value 1 1 1 1 0 0 1 0 Read/Write -- -- -- -- R/W R/W -- R/W Smart Card Interface Mode Select 0 Operates as normal SCI (smart card interface function disabled) 1 Smart card interface function enabled Smart Card Data Invert 0 TDR contents are transmitted without modification Receive data is stored in RDR without modification 1 TDR contents are inverted before being transmitted Receive data is stored in RDR in inverted form Smart Card Data Transfer Direction 0 TDR contents are transmitted LSB-first Receive data is stored in RDR LSB-first 1 TDR contents are transmitted MSB-first Receive data is stored in RDR MSB-first REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1059 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SMR2--Serial Mode Register 2 Bit H'FF88 SCI2 7 6 5 4 3 2 1 0 C/A CHR PE O/E STOP MP CKS1 CKS0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Clock Select 1 and 0 0 1 0 clock 1 /4 clock 0 /16 clock 1 /64 clock Multiprocessor Mode 0 Multiprocessor function disabled 1 Multiprocessor format selected Stop Bit Length 0 1 stop bit: In transmission, a single 1 bit (stop bit) is added to the end of a transmit character before it is sent. 1 2 stop bits: In transmission, two 1 bits (stop bits) are added to the end of a transmit character before it is sent. Parity Mode 0 Even parity*3 1 Odd parity*4 Parity Enable 0 Parity bit addition and checking disabled 1 Parity bit addition and checking enabled*2 Character Length 0 8-bit data 1 7-bit data*1 Communication Mode Page 1060 of 1126 0 Asynchronous mode 1 Clocked synchronous mode REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Notes: 1. When 7-bit data is selected, the MSB (bit 7) of TDR is not transmitted and it is not possible to choose between LSB-first or MSB-first transfer. 2. When the PE bit is set to 1, the parity (even or odd) specified by the O/E bit is added to transmit data before transmission. In reception, the parity bit is checked for the parity (even or odd) specified by the O/E bit. 3. When even parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is even. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is even. 4. When odd parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is odd. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is odd. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1061 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SMR2--Serial Mode Register 2 H'FF88 SCI2, Smart Card Interface 2 7 6 5 4 3 2 1 0 GM BLK PE O/E BCP1 BCP0 CKS1 CKS0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Bit Clock Select 1 and 0 0 0 clock 1 /4 clock 1 0 /16 clock 1 /64 clock Basic Clock Pulse 0 1 0 32 clock periods 1 64 clock periods 0 372 clock periods 1 256 clock periods Parity Mode 0 Even parity*2 1 Odd parity*3 Parity Enable 0 Parity bit addition and checking disabled 1 Parity bit addition and checking enabled*1 Block Transfer Mode 0 Normal Smart Card interface mode operation * Error signal transmission/detection and automatic data retransmission performed * TXI interrupt generated by TEND flag * TEND flag set 12.5 etu after start of transmission (11.0 etu in GSM mode) 1 Block transfer mode operation * Error signal transmission/detection and automatic data retransmission not performed * TXI interrupt generated by TDRE flag * TEND flag set 11.5 etu after start of transmission (11.0 etu in GSM mode) GSM Mode 0 Normal smart card interface mode operation * TEND flag generation 12.5 etu (11.5 etu in block transfer mode) after beginning of start bit * Clock output ON/OFF control only 1 GSM mode smart card interface mode operation * TEND flag generation 11.0 etu after beginning of start bit * High/low fixing control possible in addition to clock output ON/OFF control (set by SCR) Note: etu: Elementary time unit (time for transfer of 1 bit) Page 1062 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Notes: When the smart card interface is used, be sure to make the 1 setting shown for bit 5. 1. When the PE bit is set to 1, the parity (even or odd) specified by the O/E bit is added to transmit data before transmission. In reception, the parity bit is checked for the parity (even or odd) specified by the O/E bit. 2. When even parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is even. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is even. 3. When odd parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is odd. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is odd. BRR2--Bit Rate Register 2 H'FF89 SCI2, Smart Card Interface 2 Bit 7 6 5 4 3 2 1 0 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Set the serial transmit/receive bit rate Note: For details see section 13.2.8, Bit Rate Register (BRR). REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1063 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SCR2--Serial Control Register 2 Bit H'FF8A SCI2 7 6 5 4 3 2 1 0 TIE RIE TE RE MPIE TEIE CKE1 CKE0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Clock Enable 1 and 0 0 0 Asynchronous mode Internal clock/SCK pin functions as I/O port Internal clock/SCK pin Clocked synchronous mode functions as serial clock output 1 Asynchronous mode Internal clock/SCK pin functions as clock output*9 Clocked Internal clock/SCK pin synchronous mode functions as serial clock output 1 0 Asynchronous mode External clock/SCK pin functions as clock input*10 Clocked External clock/SCK pin synchronous mode functions as serial clock input 1 Asynchronous mode External clock/SCK pin functions as clock input*10 Clocked External clock/SCK pin synchronous mode functions as serial clock input Transmit End Interrupt Enable 0 Transmit-end interrupt (TEI) request disabled*8 1 Transmit-end interrupt (TEI) request enabled*8 Multiprocessor Interrupt Enable 0 Transmit Interrupt Enable 0 1 Transmit-data-empty interrupt (TXI) request disabled*1 1 Transmit-data-empty interrupt (TXI) request enabled 1 Receive-data-full interrupt (RXI) request and receive-error interrupt (ERI) request disabled*2 Receive-data-full interrupt (RXI) request and receive-error interrupt (ERI) request enabled Page 1064 of 1126 Multiprocessor interrupts enabled*7 Receive interrupt (RXI) requests, receive-error interrupt (ERI) requests, and setting of the RDRF, FER, and ORER flags in SSR are disabled until data with the multiprocessor bit set to 1 is received Receive Enable Receive Interrupt Enable 0 Multiprocessor interrupts disabled (normal reception mode performed) [Clearing conditions] * When the MPIE bit is cleared to 0 * When MPB = 1 data is received 0 Reception disabled*5 1 Reception enabled*6 Transmit Enable 0 Transmission disabled*3 1 Transmission enabled*4 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register Notes: 1. TXI interrupt request cancellation can be performed by reading 1 from the TDRE flag, then clearing it to 0, or clearing the TIE bit to 0. 2. RXI and ERI interrupt request cancellation can be performed by reading 1 from the RDRF flag, or the FER, PER, or ORER flag, then clearing the flag to 0, or clearing the RIE bit to 0. 3. The TDRE flag in SSR is fixed at 1. 4. In this state, serial transmission is started when transmit data is written to TDR and the TDRE flag in SSR is cleared to 0. SMR setting must be performed to decide the transfer format before setting the TE bit to 1. 5. Clearing the RE bit to 0 does not affect the RDRF, FER, PER, and ORER flags, which retain their states. 6. Serial reception is started in this state when a start bit is detected in asynchronous mode or serial clock input is detected in clocked synchronous mode. SMR setting must be performed to decide the transfer format before setting the RE bit to 1. 7. When receive data including MPB = 0 is received, receive data transfer from RSR to RDR, receive error detection, and setting of the RDRF, FER, and ORER flags in SSR , is not performed. When receive data including MPB = 1 is received, the MPB bit in SSR is set to 1, the MPIE bit is cleared to 0 automatically, and generation of RXI and ERI interrupts (when the TIE and RIE bits in SCR are set to 1) and FER and ORER flag setting is enabled. 8. TEI cancellation can be performed by reading 1 from the TDRE flag in SSR, then clearing it to 0 and clearing the TEND flag to 0, or clearing the TEIE bit to 0. 9. Outputs a clock of the same frequency as the bit rate. 10. Inputs a clock with a frequency 16 times the bit rate. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1065 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SCR2--Serial Control Register 2 Bit H'FF8A SCI2, Smart Card Interface 2 7 6 5 4 3 2 1 0 TIE RIE TE RE MPIE TEIE CKE1 CKE0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Clock Enable 1 and 0 SCMR SMR SCR Setting SMIF C/A, GM CKE1 0 1 CKE0 SCK Pin Function See the SCI 0 0 1 1 0 Operates as port I/O pin 1 Outputs clock as SCK output pin 0 Operates as SCK output pin, with output fixed low 1 Outputs clock as SCK output pin 0 Operates as SCK output pin, with output fixed high 1 Outputs clock as SCK output pin Operate in the same way as for the normal SCI. TDR2--Transmit Data Register 2 H'FF8B SCI2, Smart Card Interface 2 Bit 7 6 5 4 3 2 1 0 Initial value 1 1 1 1 1 1 1 1 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Store serial transmit data Page 1066 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SSR2--Serial Status Register 2 Bit Initial value Read/Write H'FF8C SCI2 7 6 5 4 3 2 1 0 TDRE RDRF ORER FER PER TEND MPB MPBT 1 0 0 0 0 1 0 0 R R R/W *9 R/(W) *9 R/(W) *9 R/(W) *9 *9 R/(W) R/(W) Multiprocessor Bit Transfer 0 Data with a 0 multi-processor bit is transmitted 1 Data with a 1 multi-processor bit is transmitted Multiprocessor Bit 0 *7 [Clearing condition] When data with a 0 multiprocessor bit is received 1 [Setting condition] When data with a 1 multiprocessor bit is received Transmit End 0 [Clearing conditions] * When 0 is written in TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR 1 [Setting conditions] * When the TE bit in SCR is 0 * When TDRE = 1 at transmission of the last bit of a 1-byte serial transmit character Parity Error 0 [Clearing condition] When 0 is written in PER after reading PER = 1 1 [Setting condition] When, in reception, the number of 1 bits in the receive data plus the parity bit does not match the parity setting (even or odd) specified by the O/E bit in SMR*6 *5 Framing Error 0 [Clearing condition] When 0 is written in FER after reading FER = 1 1 *4 [Setting condition] When the SCI checks whether the stop bit at the end of the receive data when reception ends, and the stop bit is 0 *3 Overrun Error 0 [Clearing condition] When 0 is written in ORER after reading ORER = 1 1 [Setting condition] *2 When the next serial reception is completed while RDRF = 1 *1 Receive Data Register Full *8 0 [Clearing conditions] * When 0 is written in RDRF after reading RDRF = 1 * When the DTC is activated by an RXI interrupt and reads data from RDR 1 [Setting condition] When serial reception ends normally and receive data is transferred from RSR to RDR Transmit Data Register Empty 0 [Clearing conditions] * When 0 is written in TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR 1 [Setting conditions] * When the TE bit in SCR is 0 * When data is transferred from TDR to TSR and data can be written in TDR REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1067 of 1126 Appendix B Internal I/O Register H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Notes: 1. The ORER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 2. The receive data prior to the overrun error is retained in RDR, and the data received subsequently is lost. Also, subsequent serial reception cannot be continued while the ORER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. 3. The FER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 4. In 2-stop-bit mode, only the first stop bit is checked for a value of 0; the second stop bit is not checked. If a framing error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the FER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. 5. The PER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 6. If a parity error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the PER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. 7. Retains its previous state when the RE bit in SCR is cleared to 0 with multiprocessor format. 8. RDR and the RDRF flag are not affected and retain their previous values when an error is detected during reception or when the RE bit in SCR is cleared to 0. If reception of the next data is completed while the RDRF flag is still set to 1, an overrun error will occur and the receive data will be lost. 9. Only 0 can be written, to clear the flag. Page 1068 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SSR2--Serial Status Register 2 Bit H'FF8C SCI2, Smart Card Interface 2 7 6 5 4 3 2 1 0 TDRE RDRF ORER ERS PER TEND MPB MPBT Initial value 1 0 0 0 0 1 0 0 Read/Write R/(W)* R/(W)* R/(W)* R/(W)* R/(W)* R R R/W Operate in the same way as for the normal SCI. Error Signal Status 0 Normal reception, with no error signal [Clearing condition] * Upon reset, and in standby mode or module stop mode * When 0 is written to ERS after reading ERS = 1 1 Error signal sent from receiver indicating detection of parity error [Setting condition] When the low level of the error signal is sampled Note: Clearing the TE bit in SCR to 0 does not affect the ERS flag, which retains its previous state. Operate in the same way as for the normal SCI. Note: * Only 0 can be written, to clear the flag. RDR2--Receive Data Register 2 H'FF8D SCI2, Smart Card Interface 2 Bit 7 6 5 4 3 2 1 0 Initial value 0 0 0 0 0 0 0 0 Read/Write R R R R R R R R Store serial receive data REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1069 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register SCMR2--Smart Card Mode Register 2 Bit H'FF8E SCI2, Smart Card Interface 2 7 6 5 4 3 2 1 0 -- -- -- -- SDIR SINV -- SMIF Initial value 1 1 1 1 0 0 1 0 Read/Write -- -- -- -- R/W R/W -- R/W Smart Card Interface Mode Select 0 Operates as normal SCI (smart card interface function disabled) 1 Smart card interface function enabled Smart Card Data Invert 0 TDR contents are transmitted without modification Receive data is stored in RDR without modification 1 TDR contents are inverted before being transmitted Receive data is stored in RDR in inverted form Smart Card Data Transfer Direction 0 TDR contents are transmitted LSB-first Receive data is stored in RDR LSB-first 1 TDR contents are transmitted MSB-first Receive data is stored in RDR MSB-first ADDRA--A/D Data Register A ADDRB--A/D Data Register B ADDRC--A/D Data Register C ADDRD--A/D Data Register D Bit 15 14 13 H'FF90 H'FF92 H'FF94 H'FF96 7 A/D Converter A/D Converter A/D Converter A/D Converter 6 5 4 3 2 1 0 AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 -- -- -- -- -- -- 12 11 10 9 8 Initial value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Read/Write R R R R R R R R R R R R R R R R Page 1070 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register ADCSR--A/D Control/Status Register H'FF98 A/D Converter 7 6 5 4 3 2 1 0 ADF ADIE ADST SCAN CH3 CH2 CH1 CH0 Bit Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/W R/W R/W R/W R/W R/W R/W Channel Select 2 to 0 CH3 CH2 CH1 CH0 0 0 0 0 1 0 1 0 1 0 1 0 1 0 1 1 1 0 1 1 0 0 1 Single Mode (SCAN = 0) AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7 AN8 AN9 AN10 AN11 Scan Mode (SCAN = 1) AN0 AN0, AN1 AN0 to AN2 AN0 to AN3 AN4 AN4, AN5 AN4 to AN6 AN4 to AN7 AN8 AN8, AN9 AN8 to AN10 AN8 to AN11 Channel Select 3 0 AN8 to AN11 are group 0 analog input pins 1 AN0 to AN3 are group 0 analog input pins, AN4 to AN7 are group 1 analog input pins Scan Mode 0 Single mode 1 Scan mode A/D Start 0 A/D conversion stopped 1 * Single mode: A/D conversion is started. Cleared to 0 automatically when conversion on the specified channel ends * Scan mode: A/D conversion is started. Conversion continues sequentially on the selected channels until ADST is cleared to 0 by software, a reset, or a transition to standby mode or module stop mode A/D Interrupt Enable 0 A/D conversion end interrupt (ADI) request disabled 1 A/D conversion end interrupt (ADI) request enabled A/D End Flag 0 [Clearing conditions] * When 0 is written in the to ADF flag after reading ADF = 1 * When the DTC is activated by an ADI interrupt and ADDR is read 1 [Setting conditions] * Single mode: When A/D conversion ends * Scan mode: When A/D conversion ends on all specified channels Note: * Only 0 can be written, to clear the flag. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1071 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register ADCR--A/D Control Register H'FF99 A/D Converter 7 6 5 4 3 2 1 0 TRGS1 TRGS0 -- -- CKS1 CKS0 -- -- Initial value 0 0 1 1 0 0 1 1 Read/Write R/W R/W -- -- R/W R/W -- -- Bit Clock Select 0 1 0 Conversion time = 530 states (max.) 1 Conversion time = 266 states (max.) 0 Conversion time = 134 states (max.) 1 Conversion time = 68 states (max.) Timer Trigger Select 0 1 Page 1072 of 1126 0 A/D conversion start by software is enabled 1 A/D conversion start by TPU conversion start trigger is enabled 0 Setting prohibited 1 A/D conversion start by external trigger pin (ADTRG) is enabled REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCSR1--Timer Control/Status Register 1 Bit H'FFA2(W), H'FFA2(R) WDT1 7 6 5 4 3 2 1 0 OVF WT/IT TME PSS RST/NMI CKS2 CKS1 CKS0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/(W)* R/W R/W R/W R/W R/W R/W R/W Clock Select 2 to 0 PSS CKS2 CKS1 CKS0 0 0 0 1 1 0 1 Reset or NMI 0 NMI request 1 Internal reset request 1 0 1 Prescaler Select 0 1 The TCNT counts frequencydivision clock pulses of the based prescaler (PSM) The TCNT counts frequencydivision clock pulses of the SUB-based prescaler (PSS) Timer Enable 0 TCNT is initialized to H'00 and halted 1 TCNT counts 0 1 0 1 Clock Overflow Period* (where = 20 MHz) (where SUB = 32.768 kHz) 25.6 s 0 /2 1 /64 819.2 s 0 /128 1.6 ms 1 /512 6.6 ms 0 /2048 26.2 ms 1 /8192 104.9 ms 0 /32768 419.4 ms 1 /131072 1.68 s 0 SUB/2 15.6 ms 1 SUB/4 31.3 ms 0 SUB/8 62.5 ms 1 SUB/16 125 ms 0 SUB/32 250 ms 1 SUB/64 500 ms 0 SUB/128 1s 1 SUB/256 2s Note: * An overflow period is the time interval between the start of counting up from H'00 on the TCNT and the occurrence of a TCNT overflow. Timer Mode Select 0 Interval timer mode: WDT1 requests an interval timer interrupt (WOVI) from the CPU when the TCNT overflows 1 Watchdog timer mode: WDT1 requests a reset or an NMI interrupt from the CPU when the TCNT overflows Overflow Flag 0 [Clearing conditions] * Cleared when 0 is written to the TME bit (Only applies to WDT1) * Cleared by reading TCSR when OVF = 1, then write 0 in OVF 1 [Setting condition] When TCNT overflows (changes from H'FF to H'00) (When internal reset request generation is selected in watchdog timer mode, OVF is cleared automatically by the internal reset) Note: * Only a 0 may be written to this bit to clear the flag. TCSR1 register differs from other registers in being more difficult to write to. For details see section 12.2.4, Notes on Register Access. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1073 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register TCNT1--Timer Counter 1 H'FFA2(W), H'FFA3(R) WDT1 Bit 7 6 5 4 3 2 1 0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Up-counter Note: TCNT is write-protected by a password to prevent accidental overwriting. For details see section 12.2.4, Notes on Register Access. Page 1074 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register FLMCR1--Flash Memory Control Register 1 H'FFA8 Flash Memory 7 6 5 4 3 2 1 0 FWE SWE ESU PSU EV PV E P Initial value --* 0 0 0 0 0 0 0 Read/Write R R/W R/W R/W R/W R/W R/W R/W Bit Erase Program 0 Erase mode cleared 0 Program mode cleared 1 Transition to erase mode [Setting condition] When FWE = 1, SWE = 1, and ESU = 1 1 Transition to program mode [Setting condition] When FWE = 1, SWE = 1, and PSU = 1 Program-Verify 0 Program-verify mode cleared 1 Transition to program-verify mode [Setting condition] When FWE = 1 and SWE = 1 Erase-verify 0 Erase-verify mode cleared 1 Transition to erase-verify mode [Setting condition] When FWE = 1 and SWE = 1 Program Setup Bit 0 Program setup cleared 1 Program setup [Setting condition] When FWE = 1 and SWE = 1 Erase Setup Bit 0 Erase setup cleared 1 Erase setup [Setting condition] When FWE = 1 and SWE = 1 Software Write Enable Bit 0 Writes disabled 1 Writes enabled [Setting condition] When FWE = 1 Flash Write Enable Bit 0 When a low level is input to the FWE pin (hardware-protected state) 1 When a high level is input to the FWE pin Note: * Determined by the state of the FWE pin. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1075 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register FLMCR2--Flash Memory Control Register 2 Bit H'FFA9 Flash Memory 7 6 5 4 3 2 1 0 FLER -- -- -- -- -- -- -- Initial value 0 0 0 0 0 0 0 0 Read/Write R R R R R R R R Flash Memory Error Page 1076 of 1126 0 Flash memory is operating normally Flash memory program/erase protection (error protection) is disabled [Clearing condition] Power-on reset or hardware standby mode 1 An error has occurred during flash memory programming/erasing Flash memory program/erase protection (error protection) is enabled [Setting condition] See section 20.8.3, Error Protection REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register EBR1--Erase Block Register 1 EBR2--Erase Block Register 2 H'FFAA H'FFAB Flash Memory Flash Memory EBR1 Bit 15 14 13 12 11 10 9 8 EB7 EB6 EB5 EB4 EB3 EB2 EB1 EB0 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W EBR2 Bit 7 6 5 4 3 2 1 0 -- -- -- -- -- -- EB9 EB8 Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Specify the flash memory erase area Block (Size) Addresses EB0 (1 kB) H'000000-H'0003FF EB1 (1 kB) H'000400-H'0007FF EB2 (1 kB) H'000800-H'000BFF EB3 (1 kB) H'000C00-H'000FFF EB4 (28 kB) H'001000-H'007FFF EB5 (16 kB) H'008000-H'00BFFF EB6 (8 kB) H'00C000-H'00DFFF EB7 (8 kB) H'00E000-H'00FFFF EB8 (32 kB) H'010000-H'017FFF EB9 (32 kB) H'018000-H'01FFFF FLPWCR--Flash Memory Power Control Register Bit H'FFAC Flash Memory 7 6 5 4 3 2 1 0 PDWND -- -- -- -- -- -- -- Initial value 0 0 0 0 0 0 0 0 Read/Write R/W R R R R R R R Power-Down Disable 0 Transition to flash memory power-down mode enabled 1 Transition to flash memory power-down mode disabled REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1077 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PORT1--Port 1 Register Bit H'FFB0 Port 7 6 5 4 3 2 1 0 P17 P16 P15 P14 P13 P12 P11 P10 Initial value --* --* --* --* --* --* --* --* Read/Write R R R R R R R R State of the port 1 pins Note: * Determined by state of pins P17 to P10. PORT2--Port 2 Register H'FFB1 Port 7 6 5 4 3 2 1 0 P27 P26 P25 P24 P23 P22 P21 P20 Initial value --* --* --* --* --* --* --* --* Read/Write R R R R R R R R Bit State of the port 2 pins Note: * Determined by state of pins P27 to P20. PORT3--Port 3 Register H'FFB2 Port 7 6 5 4 3 2 1 0 P37 P36 P35 P34 P33 P32 P31 P30 Initial value --* --* --* --* --* --* --* --* Read/Write R R R R R R R R Bit State of the port 3 pins Note: * Determined by state of pins P37 to P30. Page 1078 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PORT4--Port 4 Register Bit H'FFB3 Port 7 6 5 4 3 2 1 0 P47 P46 P45 P44 P43 P42 P41 P40 Initial value --* --* --* --* --* --* --* --* Read/Write R R R R R R R R State of the port 4 pins Note: * Determined by state of pins P47 to P40. PORT5--Port 5 Register Bit Initial value Read/Write H'FFB4 Port 7 6 5 4 3 2 1 0 -- -- -- -- -- P52 P51 P50 --* --* --* R R R Undefined Undefined Undefined Undefined Undefined -- -- -- -- -- State of the port 5 pins Note: * Determined by state of pins P52 to P50. PORT9--Port 9 Register H'FFB8 Port 7 6 5 4 3 2 1 0 P97 P96 P95 P94 P93 P92 P91 P90 Initial value --* --* --* --* --* --* --* --* Read/Write R R R R R R R R Bit State of the port 9 pins Note: * Determined by state of pins P97 to P90. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1079 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PORTA--Port A Register Bit H'FFB9 Port 7 6 5 4 3 2 1 0 PA7 PA6 PA5 PA4 PA3 PA2 PA1 PA0 Initial value --* --* --* --* --* --* --* --* Read/Write R R R R R R R R State of the port A pins Note: * Determined by state of pins PA7 to PA0. PORTB--Port B Register H'FFBA Port 7 6 5 4 3 2 1 0 PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0 Initial value --* --* --* --* --* --* --* --* Read/Write R R R R R R R R Bit State of the port B pins Note: * Determined by state of pins PB7 to PB0. PORTC--Port C Register H'FFBB Port 7 6 5 4 3 2 1 0 PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0 Initial value --* --* --* --* --* --* --* --* Read/Write R R R R R R R R Bit State of the port C pins Note: * Determined by state of pins PC7 to PC0. Page 1080 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix B Internal I/O Register PORTD--Port D Register Bit H'FFBC Port 7 6 5 4 3 2 1 0 PD7 PD6 PD5 PD4 PD3 PD2 PD1 PD0 Initial value --* --* --* --* --* --* --* --* Read/Write R R R R R R R R State of the port D pins Note: * Determined by state of pins PD7 to PD0. PORTE--Port E Register H'FFBD Port 7 6 5 4 3 2 1 0 PE7 PE6 PE5 PE4 PE3 PE2 PE1 PE0 Initial value --* --* --* --* --* --* --* --* Read/Write R R R R R R R R Bit State of the port E pins Note: * Determined by state of pins PE7 to PE0. PORTF--Port F Register H'FFBE Port 7 6 5 4 3 2 1 0 PF7 PF6 PF5 PF4 PF3 PF2 -- PF0 Initial value --* --* --* --* --* --* Undefined --* Read/Write R R R R R R -- R Bit State of the port F pins Note: * Determined by state of pins PF7 to PF2, PF0. REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1081 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams Appendix C I/O Port Block Diagrams C.1 Port 1 Block Diagrams WDDR1 Reset Internal address bus R Q D P1nDDR C Internal data bus Reset R Q D P1nDR C P1n * WDR1 PPG module Pulse output enable Pulse output TPU module Output compare Output/PWM output enable Output compare output/ PWM output RDR1 RPOR1 Input capture input Legend: WDDR1 WDR1 RDR1 RPOR1 : Write to P1DDR : Write to P1DR : Read P1DR : Read port 1 Notes: n = 0 or 1 * Priority order: Output compare output/PWM output > pulse output > DR output Figure C.1 (a) Port 1 Block Diagram (Pins P10 and P11) Page 1082 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams WDDR1 Reset Internal address bus R Q D P1nDDR C Internal data bus Reset R Q D P1nDR C P1n * WDR1 PPG module Pulse output enable Pulse output TPU module Output compare output/ PWM output enable Output compare output/ PWM output RDR1 RPOR1 Input capture input External clock input Legend: WDDR1: WDR1: RDR1: RPOR1: Write to P1DDR Write to P1DR Read P1DR Read port 1 Notes: n = 2 or 3 * Priority order: output compare output/PWM output > pulse output > DR output Figure C.1 (b) Port 1 Block Diagram (Pins P12 and P13) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1083 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams R Q D P14DDR C WDDR1 Reset R Q D P14DR C P14 * Internal data bus Reset WDR1 PPG module Pulse output enable Pulse output TPU module Output compare output/ PWM output enable Output compare output/ PWM output RDR1 RPOR1 Input capture input Interrupt controller IRQ0 interrupt input Legend: WDDR1: WDR1: RDR1: RPOR1: Write to P1DDR Write to P1DR Read P1DR Read port 1 Note: * Priority order: output compare output/PWM output > pulse output > DR output Figure C.1 (c) Port 1 Block Diagram (Pin P14) Page 1084 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams R Q D P15DDR C WDDR1 Reset Internal data bus Reset R Q D P15DR C P15 * WDR1 PPG module Pulse output enable Pulse output TPU module Output compare output/ PWM output enable Output compare output/ PWM output RDR1 RPOR1 Input capture input External clock input Legend: WDDR1: WDR1: RDR1: RPOR1: Write to P1DDR Write to P1DR Read P1DR Read port 1 Note: * Priority order: output compare output/PWM output > pulse output > DR output Figure C.1 (d) Port 1 Block Diagram (Pin P15) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1085 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams R Q D P16DDR C WDDR1 Reset R Q D P16DR C P16 * Internal data bus Reset WDR1 PPG module Pulse output enable Pulse output RDR1 TPU module Output compare Output/PWM output enable Output compare output/ PWM output RPOR1 Input capture input Input controller IRQ1 interrupt input Legend: WDDR1 WDR1 RDR1 RPOR1 : Write to P1DDR : Write to P1DR : Read P1DR : Read port 1 Note: * Priority order: output compare output/PWM output > pulse output > DR output Figure C.1 (e) Port 1 Block Diagram (Pin P16) Page 1086 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams R Q D P17DDR C WDDR1 Reset R Q D P17DR C P17 * Internal data bus Reset WDR1 PPG module Pulse output enable Pulse output TPU module Output compare output/ PWM output enable Output compare output/ PWM output RDR1 RPOR1 Input capture input External clock input Legend: WDDR1 WDR1 RDR1 RPOR1 : Write to P1DDR : Write to P1DR : Read P1DR : Read port 1 Note: * Priority order: output compare output/PWM output > pulse output > DR output Figure C.1 (f) Port 1 Block Diagram (Pin P17) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1087 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams C.2 Port 2 Block Diagrams R Q D P2nDDR C WDDR2 Reset P2n * Internal data bus Reset R Q D P2nDR C WDR2 TPU module Output compare output/ PWM output enable Output compare output/ PWM output RDR2 RPOR2 Input capture input Legend: WDDR2 WDR2 RDR2 RPOR2 : Write to P2DDR : Write to P2DR : Read P2DR : Read port 2 Notes: n = 0 to 3, 5, and 7 * Priority order: output compare output/PWM output > DR output Figure C.2 (a) Port 2 Block Diagram (Pins P20 to P23, P25, and P27) Page 1088 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams R Q D P2nDDR C WDDR2 Reset P2n * Internal data bus Reset R Q D P2nDR C WDR2 TPU module Output compare output/ PWM output enable Output compare output/ PWM output RDR2 RPOR2 Input capture input Comparator Analog input Legend: WDDR2 WDR2 RDR2 RPOR2 : Write to P2DDR : Write to P2DR : Read P2DR : Read port 2 Notes: n = 4 or 6 * Priority order: output compare output/PWM output > DR output Figure C.2 (b) Port 2 Block Diagram (Pins P24 and P26) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1089 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams C.3 Port 3 Block Diagrams R Q D P30DDR C WDDR3 *1 Reset R Q D P30DR C P30 Internal data bus Reset WDR3 *2 Reset R Q D P30ODR C WODR3 RODR3 SCI module Serial transmit enable Serial transmit data TxD0 RDR3 RPOR3 Legend: WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: 1. Output enable signal 2. Open drain control signal Figure C.3 (a) Port 3 Block Diagram (Pin P30) Page 1090 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams Reset R Q D P31DDR C Reset R Q D P31DR C P31 WDR3 *2 Internal data bus WDDR3 *1 Reset R Q D P31ODR C WODR3 RODR3 SCI module RDR3 Serial receive data enable RPOR3 Serial receive data RxD0 Legend: WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: 1. Output enable signal 2. Open drain control signal Figure C.3 (b) Port 3 Block Diagram (Pin P31) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1091 of 1126 Appendix C I/O Port Block Diagrams H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM R Q D P32DDR C WDDR3 *2 Reset Internal data bus Reset R Q D P32DR C P32 *1 WDR3 *3 Reset R Q D P32ODR C WODR3 RODR3 SCI module RDR3 Serial clock output enable Serial clock output SCK0 Serial clock input enable RPOR3 Serial clock input SCK0 Interrupt controller IRQ4 interrupt input Legend: WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: 1. Priority order: Serial clock output > DR output 2. Output enable signal 3. Open drain control signal Figure C.3 (c) Port 3 Block Diagram (Pin P32) Page 1092 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams R Q D P33DDR C WDDR3 *1 Reset R Q D P33DR C P33 Internal data bus Reset WDR3 *2 Reset R Q D P33ODR C WODR3 RODR3 SCI module Serial transmit enable Serial transmit data TxD1 RDR3 RPOR3 Legend: WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: 1. Output enable signal 2. Open drain control signal Figure C.3 (d) Port 3 Block Diagram (Pin P33) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1093 of 1126 Appendix C I/O Port Block Diagrams H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Reset R Q D P34DDR C Reset R Q D P34DR C P34 WDR3 *2 Internal data bus WDDR3 *1 Reset R Q D P34ODR C WODR3 RODR3 SCI module RDR3 Serial receive data enable RPOR3 Serial receive data RxD1 Legend: WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: 1. Output enable signal 2. Open drain control signal Figure C.3 (e) Port 3 Block Diagram (Pin P34) Page 1094 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams Reset R Q D P35DDR C Reset P35 *1 R Q D P35DR C WDR3 Internal data bus WDDR3 *2 Reset *3 R Q D P35ODR C WODR3 RODR3 SCI module RDR3 Serial clock output enable Serial clock output SCK1 Serial clock input enable RPOR3 Serial clock input SCK1 Interrupt controller IRQ5 interrupt input Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: 1. Priority order: Serial clock output > DR output 2. Output enable signal 3. Open drain control signal Figure C.3 (f) Port 3 Block Diagram (Pin P35) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1095 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams Reset R Q D P3nDDR C Reset R Q D P3nDR C P3n WDR3 *2 Internal data bus WDDR3 *1 Reset R Q D P3nODR C WODR3 RODR3 RDR3 RPOR3 Legend: WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: n = 6 or 7 1. Output enable signal 2. Open drain control signal Figure C.3 (g) Port 3 Block Diagram (Pins P36 and P37) Page 1096 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Port 4 Block Diagram RPOR4 P4n Internal data bus C.4 Appendix C I/O Port Block Diagrams A/D converter module Analog input Legend: RPOR4 : Read port 4 Note: n = 0 to 7 Figure C.4 Port 4 Block Diagram (Pins P40 to P47) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1097 of 1126 Appendix C I/O Port Block Diagrams C.5 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Port 5 Block Diagrams R Q D P5nDDR C WDDR5 Reset R Q D P5nDR C P5n Internal data bus Reset WDR5 RDR5 RPOR5 Legend: WDDR5 WDR5 RDR5 RPOR5 : Write to P5DDR : Write to P5DR : Read P5DR : Read port 5 Note: n = 0 to 2 Figure C.5 (a) Port 5 Block Diagram (Pins P50 to P52) (H8S/2646, H8S/2646R, H8S/2645) Page 1098 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams Reset R Q D P50DDR C Reset R Q D P50DR C P50 WDR5 Internal data bus WDDR5 SCI module Serial receive data enable Serial receive data TxD2 RDR5 RPOR5 Legend: WDDR5 WDR5 RDR5 RPOR5 : Write to P5DDR : Write to P5DR : Read P5DR : Read port 5 Figure C.5 (b) Port 5 Block Diagram (Pin P50) (H8S/2648, H8S/2648R, H8S/2647) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1099 of 1126 Appendix C I/O Port Block Diagrams H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Reset R Q D P51DDR C Reset R Q D P51DR C P51 WDR5 RDR5 Internal data bus WDDR5 SCI module Serial receive data enable RPOR5 Serial receive data TxD2 Legend: WDDR5 WDR5 RDR5 RPOR5 : Write to P5DDR : Write to P5DR : Read P5DR : Read port 5 Figure C.5 (c) Port 5 Block Diagram (Pin P51) (H8S/2648, H8S/2648R, H8S/2647) Page 1100 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams Reset R Q D P52DDR C Reset P52 * R Q D P52DR C WDR5 Internal data bus WDDR5 SCI module Serial clock output enable Serial clock output SCK2 Serial clock input enable RDR5 RPOR5 Serial clock input SCK2 Legend: WDDR5 WDR5 RDR5 RPOR5 : Write to P5DDR : Write to P5DR : Read P5DR : Read port 5 Note: * Priority order: Serial clock output > DR output Figure C.5 (d) Port 5 Block Diagram (Pin P52) (H8S/2648, H8S/2648R, H8S/2647) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1101 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams Port 9 Block Diagram RPOR9 P9n Internal data bus C.6 A/D converter module Analog input Legend: RPOR9 : Read port 9 Note: n = 0 to 7 Figure C.6 Port 9 Block Diagram (Pins P90 to P97) Page 1102 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM C.7 Appendix C I/O Port Block Diagrams Port A Block Diagram WPCRA RPCRA Internal address bus R Q D PAnPCR C Internal data bus Reset Reset R Q D PAnDDR C WDDRA *1 Reset PAn Mode 4 to 6 Address enable *2 R Q D PAnDR C WDRA Reset R Q D PAnODR C WODRA RODRA RDRA RPORA Legend: WDDRA WDRA WODRA WPCRA RDRA RPORA RODRA RPCRA : Write to PADDR : Write to PADR : Write to PAODR : Write to PAPCR : Read PADR : Read port A : Read PAODR : Read PAPCR Notes: n = 0 to 7 1. Output enable signal 2. Open drain control signal Figure C.7 Port A Block Diagram (Pins PA0 to PA7) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1103 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams C.8 Port B Block Diagram WPCRB RPCRB Internal data bus R Q D PBnPCR C Internal address bus Reset Reset R Q D PBnDDR C WDDRB *1 Reset PBn Mode 4 to 6 Address enable *2 R Q D PBnDR C WDRB Reset R Q D PBnODR C WODRB RODRB RDRB RPORB Legend: WDDRB : Write to PBDDR WDRB : Write to PBDR WODRB : Write to PBODR WPCRB : Write to PBPCR RDRB : Read PBDR RPORB : Read port B RODRB : Read PBODR RPCRB : Read PBPCR Notes: n = 0 to 7 1. Output enable signal 2. Open drain control signal Figure C.8 Port B Block Diagram (Pins PB0 to PB7) Page 1104 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM C.9 Appendix C I/O Port Block Diagrams Port C Block Diagram WPCRC RPCRC Internal address bus R Q D PCnPCR C Internal data bus Reset Reset R Q D PCnDDR C WDDRA *1 Reset Mode 4 and 5 Mode 6 PCn R Q D PCnDR C WDRA *2 Reset R Q D PCnODR C WODRC RODRC RDRC RPORC Legend: WDDRA : Write to PCDDR WDRA : Write to PCDR WODRA : Write to PCODR WPCRA : Write to PCPCR RDRA : Read PCDR RPORA : Read port A RODRA : Read PCODR RPCRA : Read PCPCR Notes: n = 0 to 7 1. Output enable signal 2. Open drain control signal Figure C.9 Port C Block Diagram (Pins PC0 to PC7) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1105 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams C.10 Port D Block Diagram R Q D PDnPCR C WPCRD RPCRD Internal upper data bus Reset Reset External address write R Q D PDnDDR C WDDRD Reset PDn R Q D PDnDR C Mode 7 Mode 4 to 6 WDRD External address upper write RDRD RPORD External address upper read Legend: WDDRD : Write to PDDDR WDRD : Write to PDDR WPCRD : Write to PDPCR RDRD : Read PDDR RPORD : Read port D RPCRD : Read PDPCR Note: n = 0 to 7 Figure C.10 Port D Block Diagram (Pins PD0 to PD7) Page 1106 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM C.11 Appendix C I/O Port Block Diagrams Port E Block Diagram WPCRE RPCRE Internal lower data bus R Q D PEnPCR C Internal upper data bus Reset Reset External address write R Q D PEnDDR C WDDRE Reset Mode 7 Mode 4 to 6 PEn R Q D PEnDR C WDRE RDRE RPORE External addres lower read Legend: WDDRE WDRE WPCRE RDRE RPORE RPCRE Note: n = 0 to 7 : Write to PEDDR : Write to PEDR : Write to PEPCR : Read PEDR : Read port E : Read PEPCR Figure C.11 Port E Block Diagram (Pins PE0 to PE7) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1107 of 1126 Appendix C I/O Port Block Diagrams Port F Block Diagrams Reset R Q D PF0DDR C WDDRF Internal data bus C.12 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Reset R Q D PF0DR C PF0 WDRF RDRF RPORF IRQ interrupt input Legend: WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C.12 (a) Port F Block Diagram (Pin PF0) Page 1108 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Reset R Q D PF2DDR C WDDRF Reset Mode 4/5/6 PF2 Mode 4/5/6 Internal data bus Appendix C I/O Port Block Diagrams Bus controller Wait enable R Q D PF2DR C WDRF RDRF RPORF Wait input Legend: WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C.12 (b) Port F Block Diagram (Pin PF2) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1109 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams R Q D PF3DDR C WDDRF Reset PF3 Mode 4/5/6 R Q D PF3DR C Internal data bus Reset WDRF Bus controller LWR output RDRF RPORF ADTRG input IRQ3 interrupt input Legend: WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C.12 (c) Port F Block Diagram (Pin PF3) Page 1110 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams R Q D PF4DDR C WDDRF Reset PF4 Mode 4/5/6 R Q D PF4DR C Internal data bus Reset WDRF Bus controller HWR output RDRF RPORF Legend: WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C.12 (d) Port F Block Diagram (Pin PF4) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1111 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams R Q D PF5DDR C WDDRF Reset PF5 Mode 4/5/6 R Q D PF5DR C Internal data bus Reset WDRF Bus controller RD output RDRF RPORF Legend: WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C.12 (e) Port F Block Diagram (Pin PF5) Page 1112 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams R Q D PF6DDR C WDDRF Reset PF6 Mode 4/5/6 R Q D PF6DR C Internal data bus Reset WDRF Bus controller AS output RDRF RPORF Legend: WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C.12 (f) Port F Block Diagram (Pin PF6) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1113 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix C I/O Port Block Diagrams S* R Q D D PF7DDR C WDDRF Internal data bus Mode 4/5/6 Reset PF7 RDRF RPORF Legend: WDDRF WDRF RDRF RPORF Note: * Set priority : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C.12 (g) Port F Block Diagram (Pin PF7) Page 1114 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM C.13 Appendix C I/O Port Block Diagrams Port G Block Diagram R Q D PHnDDR C WDDRH Reset R Q D PHnDR C PHn Internal data bus Reset WDRH PWM module PWM output enable PWM output RDRH RPORH Legend: WDDRH WDRH RDRH RPORH : Write to PHDDR : Write to PHDR : Read PHDR : Read port H Note: n = 0 to 7 Figure C.13 Port H Block Diagram (Pins PH0 to PH7) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1115 of 1126 Appendix C I/O Port Block Diagrams C.14 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Port J Block Diagram R Q D PJnDDR C WDDRJ Reset R Q D PJnDR C PJn Internal data bus Reset WDRJ PWM module PWM output enable PWM output RDRJ RPORJ Legend: WDDRJ WDRJ RDRJ RPORJ : Write to PJDDR : Write to PJDR : Read PJDR : Read port J Note: n = 0 to 7 Figure C.14 Port J Block Diagram (Pins PJ0 to PJ7) Page 1116 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM C.15 Appendix C I/O Port Block Diagrams Port K Block Diagram R Q D PKnDDR C WDDRK Reset R Q D PKnDR C PKn Internal data bus Reset WDRK RDRK RPORK Legend: WDDRK WDRK RDRK RPORK : Write to PKDDR : Write to PKDR : Read PKDR : Read port K Note: n = 6 or 7 Figure C.15 Port K Block Diagram (Pins PK6 and PK7) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1117 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix D Pin States Appendix D Pin States D.1 Port States in Each Mode Table D.1 I/O Port States in Each Processing State (H8S/2646, H8S/2646R, H8S/2645) MCU Port Name Operating Pin Name Mode Reset Hardware Standby Mode Software Standby Mode Program Execution State Sleep Mode Port 1 4 to 7 T T kept I/O port Port 2 4 to 7 T T kept I/O port Port 3 4 to 7 T T kept I/O port Port 4 4 to 7 T T T Input port Port 5 4 to 7 T T kept I/O port Port 9 4 to 7 T T T Input port [Address output, OPE = 0] T [Address output, OPE = 1] kept [Segment, common output] port [Otherwise] kept [Address output] A23 to A16 [Segment, common output] SEG24 to SEG21 COM4 to COM1 [Otherwise] I/O port Port A Port B 4, 5 L T 6 T T 7 T T [Segment, common output] port [Otherwise] kept [Segment, common output] SEG24 to SEG21 COM4 to COM1 [Otherwise] I/O port [Address output, OPE = 0] T [Address output, OPE = 1] kept [Segment output] port [Otherwise] kept [Address output] A15 to A8 [Segment output] SEG16 to SEG9 [Otherwise] I/O port [Segment output] port [Otherwise] kept [Segment output] SEG16 to SEG9 [Otherwise] I/O port 4, 5 L T 6 T T 7 T T Page 1118 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Reset Hardware Standby Software Standby Mode Mode Program Execution State Sleep Mode 4, 5 L T [OPE = 0] T [OPE = 1] kept A7 to A0 6 T T [Segment output] port [DDR = 1, OPE = 0] T [DDR = 1, OPE = 1] kept [DDR = 0] kept [Segment output] SEG8 to SEG1 [DDR = 1] A7 to A0 [DDR = 0] Input port 7 T T [Segment output] port [Otherwise] kept [Segment output] SEG8 to SEG1 [Otherwise] I/O port 4 to 6 T T T Data bus 7 T T kept I/O port 4 to 6 8 bit bus T T kept I/O port 16 bit T bus T T Data bus 7 T T kept I/O port 4 to 6 Clock output T [DDR = 0] T [DDR = 1] H [DDR = 0] T [DDR = 1] Clock output 7 T T [DDR = 0] T [DDR = 1] H [DDR = 0] T [DDR = 1] Clock output 4 to 6 H T [OPE = 0] T [OPE = 1] H AS 7 T T [Segment output] port [Otherwise] kept [Segment output] SEG20 [Otherwise] I/O port MCU Port Name Operating Pin Name Mode Port C Port D Port E PF7/ PF6/AS REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Appendix D Pin States Page 1119 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix D Pin States Reset Hardware Standby Software Standby Mode Mode Program Execution State Sleep Mode 4 to 6 H T [OPE = 0] T [OPE = 1] H RD, HWR 7 T T [Segment output] port [Otherwise] kept [Segment output] SEG19, SEG18 [Otherwise] I/O port 4 to 6 H T [OPE = 0] T [OPE = 1] H LWR 7 T T kept I/O port 4 to 6 T T [Segment output] port [Otherwise] kept [WAITE = 1] WAIT 7 T T [Segment output] port [Otherwise] kept [Segment output] SEG17 [Otherwise] I/O port PF0 4 to 7 T T kept I/O port Port H 4 to 7 T T kept I/O port MCU Port Name Operating Pin Name Mode PF5/RD PF4/HWR PF3/LWR PF2/WAIT Port J 4 to 7 T T kept I/O port Port K 4 to 7 T T kept I/O port HTxD 4 to 7 H T H HTxD output HRxD 4 to 7 input T T HRxD input Legend: H : High level L : Low level T : High impedance kept : Input port becomes high-impedance, output port retains state Port : Determined by port setting (input is high-impedance) DDR : Data direction register OPE : Output port enable WAITE : Wait input enable Page 1120 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Table D.2 Appendix D Pin States I/O Port States in Each Processing State (H8S/2648, H8S/2648R, H8S/2647) Reset Hardware Standby Software Standby Mode Mode Program Execution State Sleep Mode 4 to 7 T T kept I/O port Port 2 4 to 7 T T kept I/O port Port 3 4 to 7 T T kept I/O port Port 4 4 to 7 T T T Input port Port 5 4 to 7 T T kept I/O port Port 9 4 to 7 T T T Input port Port A 4, 5 L T 6 T T [Address output, OPE = 0] T [Address output, OPE = 1] kept [Segment, common output] port [Otherwise] kept [Address output] A23 to A16 [Segment, common output] SEG40 to SEG37 COM4 to COM1 [Otherwise] I/O port 7 T T [Segment, common output] port [Otherwise] kept [Segment, common output] SEG40 to SEG37 COM4 to COM1 [Otherwise] I/O port 4, 5 L T 6 T T [Address output, OPE = 0] T [Address output, OPE = 1] kept [Segment output] port [Otherwise] kept [Address output] A15 to A8 [Segment output] SEG32 to SEG25 [Otherwise] I/O port 7 T T [Segment output] port [Otherwise] kept [Segment output] SEG32 to SEG25 [Otherwise] I/O port MCU Port Name Operating Pin Name Mode Port 1 Port B REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1121 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix D Pin States Reset Hardware Standby Software Standby Mode Mode Program Execution State Sleep Mode 4, 5 L T [OPE = 0] T [OPE = 1] kept A7 to A0 6 T T [Segment output] port [DDR = 1, OPE = 0] T [DDR = 1, OPE = 1] kept [DDR = 0] kept [Segment output] SEG24 to SEG17 [DDR = 1] A7 to A0 [DDR = 0] Input port 7 T T [Segment output] port [Otherwise] kept [Segment output] SEG24 to SEG17 [Otherwise] I/O port 4 to 6 T T T Data bus 7 T T kept I/O port 4 to 6 8 bit bus T T kept I/O port 16 bit T bus T T Data bus 7 T T kept I/O port 4 to 6 Clock output T [DDR = 0] T [DDR = 1] H [DDR = 0] T [DDR = 1] Clock output 7 T T [DDR = 0] T [DDR = 1] H [DDR = 0] T [DDR = 1] Clock output 4 to 6 H T [OPE = 0] T [OPE = 1] H AS 7 T T [Segment output] port [Otherwise] kept [Segment output] SEG20 [Otherwise] I/O port MCU Port Name Operating Pin Name Mode Port C Port D Port E PF7/ PF6/AS Page 1122 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM MCU Port Name Operating Pin Name Mode PF5/RD PF4/HWR PF3/LWR PF2/WAIT PF0 Appendix D Pin States Reset Hardware Standby Mode Software Standby Mode Program Execution State Sleep Mode 4 to 6 H T [OPE = 0] T [OPE = 1] H RD, HWR 7 T T [Segment output] port [Otherwise] kept [Segment output] SEG19, SEG18 [Otherwise] I/O port 4 H T LWR 5, 6 T T [OPE = 0] T [OPE = 1] H 7 T T kept I/O port 4 to 6 T T [Segment output] port [Otherwise] kept [WAITE = 1] WAIT 7 T T [Segment output] port [Otherwise] kept [Segment output] SEG17 [Otherwise] I/O port 4 to 7 T T kept I/O port [16-bit bus mode] LWR [Otherwise] I/O port Port H 4 to 7 T T kept I/O port Port J 4 to 7 T T kept I/O port Port K 4 to 7 T T kept I/O port HTxD 4 to 7 H T H HTxD output HRxD 4 to 7 input T T HRxD input Legend: H : High level L : Low level T : High impedance kept : Input port becomes high-impedance, output port retains state Port : Determined by port setting (input is high-impedance) DDR : Data direction register OPE : Output port enable WAITE : Wait input enable REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1123 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix E Timing of Transition to and Recovery from Hardware Standby Mode Appendix E Timing of Transition to and Recovery from Hardware Standby Mode Timing of Transition to Hardware Standby Mode (1) To retain RAM contents with the RAME bit set to 1 in SYSCR, drive the RES signal low at least 10 states before the STBY signal goes low, as shown below. RES must remain low until STBY signal goes low (delay from STBY low to RES high: 0 ns or more). STBY t1 10 tcyc t2 0 ns RES Figure E.1 Timing of Transition to Hardware Standby Mode (2) To retain RAM contents with the RAME bit cleared to 0 in SYSCR, or when RAM contents do not need to be retained, RES does not have to be driven low as in (1). Timing of Recovery from Hardware Standby Mode Drive the RES signal low and the NMI signal high approximately 100 ns or more before STBY goes high to execute a power-on reset. STBY t 100 ns RES tOSC tNMIRH NMI Figure E.2 Timing of Recovery from Hardware Standby Mode Page 1124 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix F Package Dimensions Appendix F Package Dimensions The package dimension that is shown in the Renesas Semiconductor Package Data Book has priority. Figure F.1 shows the package dimensions of the H8S/2646R and H8S/2648R and figure F.2 shows that of the H8S/2646, H8S/2645, H8S/2648, and H8S/2647. JEITA Package Code P-QFP144-20x20-0.50 RENESAS Code PRQP0144KB-A Previous Code FP-144J/FP-144JV MASS[Typ.] 2.4g NOTE) 1. DIMENSIONS"*1"AND"*2" DO NOT INCLUDE MOLD FLASH 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET. HD *1 D 108 73 109 72 bp Reference Symbol c c1 HE ZE Terminal cross section 1 36 E 20 A2 2.70 HD 21.8 22.0 22.2 HE 21.8 22.0 22.2 A1 0.00 0.10 0.25 bp 0.17 0.22 0.27 3.05 0.20 0.12 c A2 A1 L L1 Detail F *3 y bp M x 0.17 0.22 0.15 c1 c A F Max 20 b1 ZD e Nom A 37 144 Dimension in Millimeters Min D *2 E b1 0 8 0.5 e 0.10 x 0.10 y ZD 1.25 ZE 1.25 0.4 L 0.5 0.6 1.0 L1 Figure F.1 FP-144J Package Dimension (H8S/2646R, H8S/2648R) REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Page 1125 of 1126 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM Appendix F Package Dimensions JEITA Package Code P-QFP144-20x20-0.50 RENESAS Code PRQP0144KA-A Previous Code FP-144G/FP-144GV MASS[Typ.] 2.4g NOTE) 1. DIMENSIONS"*1"AND"*2" DO NOT INCLUDE MOLD FLASH 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET. HD *1 D 108 73 109 72 bp Reference Symbol c c1 HE Dimension in Millimeters Min E ZE 36 1 21.8 22.0 22.2 HE 21.8 22.0 22.2 A1 0.00 0.10 0.25 bp 0.17 0.22 0.27 0.12 0.17 A2 c1 F A1 L L1 Detail F *3 bp 0.20 x 0.22 0.15 c A c y 3.05 b1 ZD e 2.70 HD A 37 144 Max 20 A2 Terminal cross section Nom 20 D *2 E b1 M 0 8 0.5 e x 0.10 y 0.10 ZD 1.25 ZE 1.25 L L1 0.4 0.5 0.6 1.0 Figure F.2 FP-144G Package Dimension (H8S/2646, H8S/2645, H8S/2648, H8S/2647) Page 1126 of 1126 REJ09B0257-0700 Rev. 7.00 Jun 10, 2010 Renesas 16-Bit Single-Chip Microcomputer H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM User's Manual: Hardware Publication Date: 1st Edition, December 1999 Rev.7.00, June 10, 2010 Published by: Renesas Electronics Corporation 1753, Shimonumabe, Nakahara-ku, Kawasaki-shi, Kanagawa 211-8668 Japan http://www.renesas.com SALES OFFICES Refer to "http://www.renesas.com/" for the latest and detailed information. Renesas Electronics America Inc. 2880 Scott Boulevard Santa Clara, CA 95050-2554, U.S.A. Tel: +1-408-588-6000, Fax: +1-408-588-6130 Renesas Electronics Canada Limited 1101 Nicholson Road, Newmarket, Ontario L3Y 9C3, Canada Tel: +1-905-898-5441, Fax: +1-905-898-3220 Renesas Electronics Europe Limited Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K Tel: +44-1628-585-100, Fax: +44-1628-585-900 Renesas Electronics Europe GmbH Arcadiastrasse 10, 40472 Dusseldorf, Germany Tel: +49-211-65030, Fax: +49-211-6503-1327 Renesas Electronics (China) Co., Ltd. 7th Floor, Quantum Plaza, No.27 ZhiChunLu Haidian District, Beijing 100083, P.R.China Tel: +86-10-8235-1155, Fax: +86-10-8235-7679 Renesas Electronics (Shanghai) Co., Ltd. Unit 204, 205, AZIA Center, No.1233 Lujiazui Ring Rd., Pudong District, Shanghai 200120, China Tel: +86-21-5877-1818, Fax: +86-21-6887-7858 / -7898 Renesas Electronics Hong Kong Limited Unit 1601-1613, 16/F., Tower 2, Grand Century Place, 193 Prince Edward Road West, Mongkok, Kowloon, Hong Kong Tel: +852-2886-9318, Fax: +852 2886-9022/9044 Renesas Electronics Taiwan Co., Ltd. 7F, No. 363 Fu Shing North Road Taipei, Taiwan Tel: +886-2-8175-9600, Fax: +886 2-8175-9670 Renesas Electronics Singapore Pte. Ltd. 1 harbourFront Avenue, #06-10, keppel Bay Tower, Singapore 098632 Tel: +65-6213-0200, Fax: +65-6278-8001 Renesas Electronics Malaysia Sdn.Bhd. Unit 906, Block B, Menara Amcorp, Amcorp Trade Centre, No. 18, Jln Persiaran Barat, 46050 Petaling Jaya, Selangor Darul Ehsan, Malaysia Tel: +60-3-7955-9390, Fax: +60-3-7955-9510 Renesas Electronics Korea Co., Ltd. 11F., Samik Lavied' or Bldg., 720-2 Yeoksam-Dong, Kangnam-Ku, Seoul 135-080, Korea Tel: +82-2-558-3737, Fax: +82-2-558-5141 (c) 2010 Renesas Electronics Corporation. All rights reserved. Colophon 1.0 H8S/2646 Group, H8S/2646R F-ZTATTM, H8S/2648R F-ZTATTM User's Manual: Hardware REJ09B0257-0700