PIC24HJ256GP610A-E/PT - Microchip Technology

PIC24HJ256GPX06A/X08A/X10A

The PIC24HJ256GPX06A/X08A/X10A family devices

that you have received conform functionally to the

current Device Data Sheet (DS70592C), except for the

anomalies described in this document.

The silicon issues discussed in the following pages are

for silicon revisions with the Device and Revision IDs

listed in Table 1. The silicon issues are summarized in

Table 2.

The errata described in this document will be addressed

in future revisions of the PIC24HJ256GPX06A/X08A/

X10A silicon.

Data Sheet clarifications and corrections start on page 6,

following the discussion of silicon issues.

The silicon revision level can be identified using the

current version of MPLAB® IDE and Microchip’s

programmers, debuggers and emulation tools, which

are available at the Microchip corporate web site

(www.microchip.com).

For example, to identify the silicon revision level using

MPLAB IDE in conjunction with MPLAB ICD 3 or

PICkit™ 3:

1. Using the appropriate interface, connect the device

to the MPLAB ICD 3 programmer/debugger or

PICkit 3.

2. From the main menu in MPLAB IDE, select

Configure>Select Device, and then select the

target part number in the dialog box.

3. Select the MPLAB hardware tool

(Debugger>Select Tool).

4. Perform a “Connect” operation to the device

(Debugger>Connect). Depending on the devel-

opment tool used, the part number and Device

Revision ID value appear in the Output window.

The Device and Revision ID values for the various

PIC24HJ256GPX06A/X08A/X10A silicon revisions are

shown in Table 1.

Note: This document summarizes all silicon

errata issues from all revisions of silicon,

previous as well as current. Only the

issues indicated in the last column of

Table 2 apply to the current silicon

revision (A3). Note: If you are unable to extract the silicon

revision level, please contact your local

Microchip sales office for assistance.

TABLE 1: SILICON DEVREV VALUES

Part Number Device ID(1) Revision ID for Silicon Revision(2)

A2 A3

PIC24HJ256GP206A 0x0771

0x3002 0x3003PIC24HJ256GP210A 0x0773

PIC24HJ256GP610A 0x077B

Note 1: The Device and Revision IDs (DEVID and DEVREV) are located at the last two implemented addresses in

program memory.

2: Refer to the “dsPIC33F/PIC24H Flash Programming Specification” (DS70152) for detailed information on

Device and Revision IDs for your specific device.

PIC24HJ256GPX06A/X08A/X10A Family

Silicon Errata and Data Sheet Clarification

PIC24HJ256GPX06A/X08A/X10A

TABLE 2: SILICON ISSUE SUMMARY

Module Feature Item

Number Issue Summary

Affected

Revisions(1)

A2 A3

ECAN™ WAKIF bit 1. The WAKIF bit in the CxINTF register cannot be cleared by

software instruction after the device is interrupted from Sleep

due to activity on the CAN bus.

ECAN DMA 2. False DMA Error Traps may be generated in applications that

perform both transmissions and receptions using ECAN with

DMA.

UART Break

Characters

3. The UART module will not generate consecutive break

characters.

ADC DONE bit 4. The ADC Conversion Status bit (DONE) does not work when

External Interrupt is selected as the ADC trigger source.

SPI TBF bit 5. Writing to the SPIBUF register as soon as the TBF bit is

cleared will cause the SPI module to ignore the written data.

DMA

Controller

CPU Write

Collision

Detection

6. DMA CPU write collisions will not be detected. X

ADC Current

Consumption

in Sleep

Mode

7. If the ADC module is in an enabled state when the device

enters Sleep mode, the power-down current (IPD) of the device

may exceed the device data sheet specifications.

All 150ºC

Operation

8. Affected revisions of silicon only support 140ºC operation

instead of 150ºC for extended operating temperature.

CPU Interrupt

Disable

9. When a previous DISI instruction is active (i.e., the DISICNT

updated manually, the DISICNT register freezes and disables

interrupts permanently.

CPU div.sd 10. When using the div.sd instruction, the overflow bit is not

getting set when an overflow occurs.

UART TX Interrupt 11. A transmit (TX) Interrupt may occur before the data

transmission is complete.

JTAG Flash

Programming

12. JTAG Flash programming is not supported. X X

Note 1: Only those issues indicated in the last column apply to the current silicon revision.

PIC24HJ256GPX06A/X08A/X10A

Silicon Errata Issues

1. Module: ECAN™

The WAKIF bit in the CxINTF register cannot be

cleared by software instruction after the device is

interrupted from Sleep due to activity on the CAN

bus.

When the device wakes up from Sleep due to CAN

bus activity, the ECAN module is placed in

operational mode. The ECAN Event interrupt

occurs due to the WAKIF flag. Trying to clear the

flag in the Interrupt Service Routine (ISR) may not

clear the flag. The WAKIF bit being set will not

cause repetitive Interrupt Service Routine

execution.

Work around

Although the WAKIF bit does not clear, the device

Sleep and ECAN Wake functions continue to work

as expected. If the ECAN event is enabled, the

CPU will enter the Interrupt Service Routine due to

the WAKIF flag getting set. The application can

maintain a secondary flag, which tracks the device

Sleep and Wake events.

Affected Silicon Revisions

2. Module: ECAN

In user applications that perform both transmis-

sions and receptions using ECAN with DMA, inter-

mittent DMA Write Collisions might get generated,

resulting in the generation of DMA Error Traps.

The ECAN messages would be transmitted and

received correctly even when these DMA Error

Traps occur.

Work around

Within the DMA Error Trap service routine in the

application software, read the DMACS0 register

and inspect the two XWCOLn (n = 0, 1, …,7) bits

corresponding to the DMA channels being used for

ECAN transmission and reception.

For example, if DMA Channel 1 is used for ECAN

Reception and DMA Channel 2 is used for ECAN

Transmission, inspect the XWCOL1 and XWCOL2

bits. If either of these bits is found to be set, clear

the DMACERR bit in the INTCON1 register and

return from the DMA Error Trap service routine.

Affected Silicon Revisions

3. Module: UART

The UART module will not generate consecutive

break characters. Trying to perform a back-to-back

Break character transmission will cause the UART

module to transmit the dummy character used to

generate the first Break character instead of

transmitting the second Break character. Break

characters are generated correctly if they are

followed by non-Break character transmission.

Work around

None.

Affected Silicon Revisions

Note: This document summarizes all silicon

errata issues from all revisions of silicon,

previous as well as current. Only the

issues indicated by the shaded column in

the following tables apply to the current

silicon revision (A3).

A2 A3

X X

A2 A3

PIC24HJ256GPX06A/X08A/X10A

4. Module: ADC

The ADC Conversion Status (DONE) bit

(ADxCON1<0>) does not indicate completion of

conversion when External Interrupt is selected as

the ADC trigger source (ADxCON1<SSRC> = 1).

Work around

Use an ADC interrupt or poll ADxIF bit in the IFSx

registers to determine the completion of

conversion.

Affected Silicon Revisions

5. Module: SPI

Writing to the SPIxBUF register as soon as the

TBF bit is cleared will cause the SPI module to

ignore the written data. Applications that use SPI

with DMA are not affected by this erratum.

Work around

After the TBF bit is cleared, wait for a minimum

duration of one SPI clock before writing to the

SPIxBUF register.

Alternatively, do one of the following:

• Poll the RBF bit and wait for it to get set before

writing to the SPIxBUF register

• Poll the SPI Interrupt flag and wait for it to get

set before writing to the SPIxBUF register

• Use an SPI Interrupt Service Routine

• Use DMA

Affected Silicon Revisions

6. Module: DMA Controller

DMA CPU write collisions will not be detected, and

the corresponding XWCOLn bit (n = 0, 1, …, 7) will

not be set. As a result, a CPU write collision event

will not generate a DMA Error Trap.

Work around

None. Before writing to any memory location in

DMA RAM, ensure that none of the enabled DMA

channels is using the same memory location for

data transfers from a peripheral.

Affected Silicon Revisions

7. Module: ADC

If the ADC module is in an enabled state when the

device enters Sleep mode as a result of executing

a PWRSAV #0 instruction, the device power-down

current (IPD) may exceed the specifications listed

in the device data sheet. This may happen even if

the ADC module is disabled by clearing the ADON

bit prior to entering Sleep mode.

Work around

In order to remain within the IPD specifications

listed in the device data sheet, the user software

must completely disable the ADC module by

setting the ADC Module Disable bit in the

corresponding Peripheral Module Disable register

(PMDx), prior to executing a PWRSAV #0

instruction.

Affected Silicon Revisions

8. Module: All

The affected silicon revisions listed below are not

warranted for operation at 150ºC.

Work around

Only use the affected revisions of silicon for Hi-Temp

operating range from -40ºC to +140ºC.

Affected Silicon Revisions

9. Module: CPU

When a previous DISI instruction is active (i.e.,

the DISICNT register is non-zero), and the value of

the DISICNT register is updated manually, the

DISICNT register freezes and disables interrupts

permanently.

Work around

Avoid updating the DISICNT register manually.

Instead, use the DISI #n instruction with the

required value for ‘n’.

Affected Silicon Revisions

A2 A3

X X

A2 A3

X X

A2 A3

X X

A2 A3

PIC24HJ256GPX06A/X08A/X10A

10. Module: CPU

When using the Signed 32-by-16-bit Division

instruction, div.sd, the overflow bit does not

always get set when an overflow occurs.

Work around

Test for and handle overflow conditions outside of

the div.sd instruction.

Affected Silicon Revisions

11. Module: UART

When using UTXISEL = 01 (Interrupt when last

character is shifted out of the Transmit Shift

out through the Transmit Shift Register, the

Transmit (TX) Interrupt may occur before the final

bit is shifted out.

Work around

If it is critical that the interrupt processing occur

only when all transmit operations are complete.

Hold off the interrupt routine processing by adding

a loop at the beginning of the routine that polls the

Transmit Shift Register Empty bit (TRMT) before

processing the rest of the interrupt.

Affected Silicon Revisions

12. Module: JTAG

JTAG Flash programming is not supported.

Work around

None.

Affected Silicon Revisions

A2 A3

X X

A2 A3

PIC24HJ256GPX06A/X08A/X10A

Data Sheet Clarifications

The following typographic corrections and clarifications

are to be noted for the latest version of the device data

sheet (DS70592C):

No issues to report at this time.

Note: Corrections are shown in bold. Where

possible, the original bold text formatting

has been removed for clarity.

PIC24HJ256GPX06A/X08A/X10A

APPENDIX A: REVISION HISTORY

Rev A Document (9/2009)

Initial release of this document; issued for revision A2

silicon.

Includes silicon issues 1-2 (ECAN™), 3 (UART), 4

(ADC) and 5 (SPI).

Rev B Document (12/2009)

Added Rev. A3 silicon information.

Added silicon issue 6 (DMA Controller).

Rev C Document (6/2010)

Added silicon issue 7 (ADC) and data sheet clarification

1 (DC Characteristics: I/O Pin Input Specifications).

Rev D Document (9/2010)

Added silicon issue 8 (All).

Rev E Document (3/2011)

Removed data sheet clarification 1.

Rev F Document (11/2011)

Added silicon issues 9 (CPU), 10 (CPU), 11 (UART),

and 12 (JTAG).

PIC24HJ256GPX06A/X08A/X10A

NOTES:

Information contained in this publication regarding device

applications and the like is provided only for your convenience

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications.

MICROCHIP MAKES NO REPRESENTATIONS OR

WARRANTIES OF ANY KIND WHETHER EXPRESS OR

IMPLIED, WRITTEN OR ORAL, STATUTORY OR

OTHERWISE, RELATED TO THE INFORMATION,

INCLUDING BUT NOT LIMITED TO ITS CONDITION,

QUALITY, PERFORMANCE, MERCHANTABILITY OR

FITNESS FOR PURPOSE. Microchip disclaims all liability

arising from this information and its use. Use of Microchip

devices in life support and/or safety applications is entirely at

the buyer’s risk, and the buyer agrees to defend, indemnify and

hold harmless Microchip from any and all damages, claims,

suits, or expenses resulting from such use. No licenses are

conveyed, implicitly or otherwise, under any Microchip

intellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, dsPIC,

KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,

PIC32 logo, rfPIC and UNI/O are registered trademarks of

Microchip Technology Incorporated in the U.S.A. and other

countries.

FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,

MXDEV, MXLAB, SEEVAL and The Embedded Control

Solutions Company are registered trademarks of Microchip

Technology Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, chipKIT,

chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net,

dsPICworks, dsSPEAK, ECAN, ECONOMONITOR,

FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP,

Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB,

MPLINK, mTouch, Omniscient Code Generation, PICC,

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UniWinDriver, WiperLock and ZENA are trademarks of

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countries.

SQTP is a service mark of Microchip Technology Incorporated

in the U.S.A.

All other trademarks mentioned herein are property of their

respective companies.

Printed on recycled paper.

ISBN: 978-1-61341-817-8

Note the following details of the code protection feature on Microchip devices:

• Microchip products meet the specification contained in their particular Microchip Data Sheet.

• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the

intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not

mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our

products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts

allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Microchip received ISO/TS-16949:2009 certification for its worldwide

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and India. The Company’s quality system processes and procedures

are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping

devices, Serial EEPROMs, microperipherals, nonvolatile memory and

analog products. In addition, Microchip’s quality system for the design

and manufacture of development systems is ISO 9001:2000 certified.

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