LHV870LC/NOPB - NATIONAL SEMICONDUCTOR

TL/DD/8801

HPC16083/HPC26083/HPC36083/HPC46083/HPC16003/HPC26003/

HPC36003/HPC46003 High-Performance microControllers

PRELIMINARY

April 1994

HPC16083/HPC26083/HPC36083/HPC46083/

HPC16003/HPC26003/HPC36003/HPC46003

High-Performance microControllers

General Description

The HPC16083 and HPC16003 are members of the HPCTM

family of High Performance microControllers. Each member

of the family has the same core CPU with a unique memory

and I/O configuration to suit specific applications. The

HPC16083 has 8k bytes of on-chip ROM. The HPC16003

has no on-chip ROM and is intended for use with external

direct memory. Each part is fabricated in National’s ad-

vanced microCMOS technology. This process combined

with an advanced architecture provides fast, flexible I/O

control, efficient data manipulation, and high speed compu-

tation.

The HPC devices are complete microcomputers on a single

chip. All system timing, internal logic, ROM, RAM, and I/O

are provided on the chip to produce a cost effective solution

for high performance applications. On-chip functions such

as UART, up to eight 16-bit timers with 4 input capture regis-

ters, vectored interrupts, WATCHDOGTM logic and MICRO-

WIRE/PLUSTM provide a high level of system integration.

The ability to address up to 64k bytes of external memory

enables the HPC to be used in powerful applications typical-

ly performed by microprocessors and expensive peripheral

chips. The term ‘‘HPC16083’’ is used throughout this data-

sheet to refer to the HPC16083 and HPC16003 devices un-

less otherwise specified.

The microCMOS process results in very low current drain

and enables the user to select the optimum speed/power

product for his system. The IDLE and HALT modes provide

further current savings. The HPC is available in 68-pin

PLCC, LDCC, PGA and 80-Pin PQFP packages.

Features

YHPC familyÐcore features:

Ð 16-bit architecture, both byte and word

Ð 16-bit data bus, ALU, and registers

Ð 64k bytes of external direct memory addressing

Ð FASTÐ200 ns for fastest instruction when using

20.0 MHz clock, 134 ns at 30 MHz

Ð High code efficiencyÐmost instructions are single

byte

Ð 16 x 16 multiply and 32 x 16 divide

Ð Eight vectored interrupt sources

Ð Four 16-bit timer/counters with 4 synchronous out-

puts and WATCHDOG logic

Ð MICROWIRE/PLUS serial I/O interface

Ð CMOSÐvery low power with two power save modes:

IDLE and HALT

YUARTÐfull duplex, programmable baud rate

YFour additional 16-bit timer/counters with pulse width

modulated outputs

YFour input capture registers

Y52 general purpose I/O lines (memory mapped)

Y8k bytes of ROM, 256 bytes of RAM on chip

YROMless version available (HPC16003)

YCommercial (0§Ctoa

70§C), industrial (b40§Cto

85§C), automotive (b40§Ctoa

105§C) and military

(b55§Ctoa

125§C) temperature ranges

For applications requiring more RAM and ROM see

HPC16064 data sheet.

Block Diagram (HPC16083 with 8k ROM shown)

TL/DD/8801–1

Series 32000É, TapePakÉand TRI-STATEÉare registered trademarks of National Semiconductor Corporation.

MOLETM, HPCTM, COPSTM, MICROWIRE/PLUSTM and WATCHDOGTM are trademarks of National Semiconductor Corporation.

UNIXÉis a registered trademarks of AT&T Bell Laboratories.

VAXTM is a trademark of Digital Equipment Corporation.

IBMÉand PC/ATÉare registered trademarks of International Business Machines Corporation.

SUNÉis a registered trademark of Sun Microsystems.

SunOSTM is a trademark of Sun Microsystems.

C1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.

Absolute Maximum Ratings

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales

Office/Distributors for availability and specifications.

Total Allowable Source or Sink Current 100 mA

Storage Temperature Range b65§Ctoa

150§C

Lead Temperature (Soldering, 10 sec) 300§C

VCC with Respect to GND b0.5V to 7.0V

All Other Pins (VCC a0.5)V to (GND b0.5)V

Note:

Absolute maximum ratings indicate limits beyond

which damage to the device may occur. DC and AC electri-

cal specifications are not ensured when operating the de-

vice at absolute maximum ratings.

DC Electrical Characteristics VCC e5.0V g10% unless otherwise specified, TAe0§Ctoa

70§C for

HPC46083/HPC46003, b40§Ctoa

85§C for HPC36083/HPC36003, b40§Ctoa

105§C for

HPC26083/HPC26003, b55§Ctoa

125§C for HPC16083/HPC16003

Symbol Parameter Test Conditions Min Max Units

ICC1Supply Current VCC e5.5V, fin e30 MHz (Note 1) 65 mA

VCC e5.5V, fin e20 MHz (Note 1) 47 mA

VCC e5.5V, fin e2.0 MHz (Note 1) 10 mA

ICC2IDLE Mode Current VCC e5.5V, fin e30 MHz (Note 1) 5.0 mA

VCC e5.5V, fin e20 MHz, (Note 1) 3.0 mA

VCC e5.5V, fin e2.0 MHz, (Note 1) 1 mA

ICC3HALT Mode Current VCC e5.5V, fin e0 kHz, (Note 1) 200 mA

VCC e2.5V, fin e0 kHz, (Note 1) 50 mA

INPUT VOLTAGE LEVELS FOR SCHMITT TRIGGERED INPUTS RESET, NMI AND WO; AND ALSO CKI

VIH1Logic High 0.9 VCC V

VIL1Logic Low 0.1 VCC V

INPUT VOLTAGE LEVELS FOR ALL OTHER INPUTS

VIH2Logic High 0.7 VCC V

VIL2Logic Low 0.2 VCC V

ILI1 Input Leakage Current VIN e0 and VIN eVCC g2mA

ILI2 Input Leakage Current VIN e0b3b50 mA

RDY/HLD, EXUI

ILI3 Input Leakage Current RESET e0, VIN eVCC 0.5 7 mA

B12

CIInput Capacitance (Note 2) 10 pF

CIO I/O Capacitance (Note 2) 20 pF

OUTPUT VOLTAGE LEVELS

VOH1Logic High (CMOS) IOH eb

10 mA (Note 2) VCC b0.1 V

VOL1Logic Low (CMOS) IOH e10 mA (Note 2) 0.1 V

VOH2Port A/B Drive, CK2 IOH eb

7 mA 2.4 V

VOL2(A0–A15,B

10,B

11,B

12,B

15)IOL e3 mA 0.4 V

VOH3Other Port Pin Drive, WO (open IOH eb

1.6 mA (except WO) 2.4 V

VOL3drain), (B0–B9,B

13,B

14,P

–P3)IOL e0.5 mA 0.4 V

VOH4 ST1 and ST2 Drive IOH eb

6 mA 2.4 V

VOL4IOL e1.6 mA 0.4 V

VOH5 Port A/B Drive (A0–A15,I

OH eb

1 mA 2.4 V

B10,B

11,B

12,B

15) when used

VOL5 as External Address/Data Bus IOL e3 mA 0.4 V

VRAM RAM Keep-Alive Voltage (Note 3) 2.5 VCC V

IOZ TRI-STATEÉLeakage Current VIN e0 and VIN eVCC g5mA

Note 1: ICC1,I

CC2,I

CC3measured with no external drive (IOH and IOL e0, IIH and IIL e0). ICC1is measured with RESET eVSS,I

CC3is measured with NMI eVCC,

CKI driven to VIH1 and VIL1, with rise and fall times less than 10 ns.

Note 2: This is guaranteed by design and not tested.

Note 3: Test duration is 100 ms.

20 MHz

AC Electrical Characteristics

(See Notes 1 and 4 and

Figure 1

thru

Figure 5

CC e5.0V g10% unless otherwise specified, TAe0§Ctoa

70§C for

HPC46083/HPC46003, b40§Ctoa

85§C for HPC36083/HPC36003, b40§Ctoa

105§C for HPC26083/HPC26003, b55§Cto

125§C for HPC16083/HPC16003

Symbol and Formula Parameter Min Max Units Note

fCCKI Operating Frequency 2 20 MHz

tC1 e1/fCCKI Clock Period 50 500 ns

tCKIH CKI High Time 22.5 ns

tCKIL CKI Low Time 22.5 ns

tCe2/fCCPU Timing Cycle 100 ns

tWAIT etCCPU Wait State Period 100 ns

tDC1C2R Delay of CK2 Rising Edge after 0 55 ns (Note 2)

CKI Falling Edge

tDC1C2F Delay of CK2 Falling Edge after 0 55 ns (Note 2)

CKI Falling Edge

fUefC/8 External UART Clock Input Frequency 2.5** MHz

fMW External MICROWIRE/PLUS 1.25 MHz

Clock Input Frequency

fXIN efC/22 External Timer Input Frequency 0.91 MHz

tXIN etCPulse Width for Timer Inputs 100 ns

tUWS MICROWIRE Setup TimeÐMaster 100 ns

ÐSlave 20

tUWH MICROWIRE Hold TimeÐMaster 20 ns

ÐSlave 50

tUWV MICROWIRE Output Valid TimeÐMaster 50 ns

ÐSlave 150

tSALE e*/4 tCa40 HLD Falling Edge before ALE Rising Edge 115 ns

tHWP etCa10 HLD Pulse Width 110 ns

tHAE etCa100 HLDA Falling Edge after HLD Falling Edge 200 ns (Note 3)

tHAD e*/4 tCa85 HLDA Rising Edge after HLD Rising Edge 160 ns

tBF e(/2 tCa66 Bus Float after HLDA Falling Edge 116 ns (Note 5)

tBE e(/2 tCa66 Bus Enable after HLDA Rising Edge 116 ns (Note 5)

tUAS Address Setup Time to Falling Edge of URD 10 ns

tUAH Address Hold Time from Rising Edge of URD 10 ns

tRPW URD Pulse Width 100 ns

tOE URD Falling Edge to Output Data Valid 0 60 ns

tOD Rising Edge of URD to Output Data Invalid 5 35 ns (Note 6)

tDRDY RDRDY Delay from Rising Edge of URD 70 ns

tWDW UWR Pulse Width 40 ns

tUDS Input Data Valid before Rising Edge of UWR 10 ns

tUDH Input Data Hold after Rising Edge of UWR 20 ns

tAWRRDY Delay from Rising Edge of UWR 70 ns

ClocksTimers

MICROWIRE/

PLUS

External HoldUPI Timing

**This maximum frequency is attainable provided that this external baud clock has a duty cycle such that the high period includes two (2) falling edges of the CK2

clock.

20 MHz

AC Electrical Characteristics

(See Notes 1 and 4 and

Figure 1

thru

Figure 5

CC e5.0V g10% unless otherwise specified, TAe0§Ctoa

70§C for

HPC46083/HPC46003, b40§Ctoa

85§C for HPC36083/HPC36003, b40§Ctoa

105§C for HPC26083/HPC26003, b55§Cto

125§C for HPC16083/HPC16003 (Continued)

Symbol and Formula Parameter Min Max Units Note

tDC1ALER Delay from CKI Rising 0 35 ns (Notes 1, 2)

Edge to ALE Rising Edge

tDC1ALEF Delay from CKI Rising 0 35 ns (Notes 1, 2)

Edge to ALE Falling Edge

tDC2ALER e(/4 tCa20 Delay from CK2 Rising 45 ns (Note 2)

Edge to ALE Rising Edge

tDC2ALEF e(/4 tCa20 Delay from CK2 Rising 45 ns (Note 2)

Edge to ALE Rising Edge

tLL e(/2 tCb9 ALE Pulse Width 41 ns

tST e(/4 tCb7 Setup of Address Valid 18 ns

before ALE Falling Edge

tVP e(/4 tCb5 Hold of Address Valid 20 ns

after ALE Falling Edge

tARR e(/4 tCb5 ALE Falling Edge to RD Falling Edge 20 ns

tACC etCaWS b55 Data Input Valid after 145 ns (Note 6)

Address Output Valid

tRD e(/2 tCaWS b65 Data Input Valid after 95 ns

RD Falling Edge

tRW e(/2 tCaWS b10 RD Pulse Width 140 ns

tDR e*/4 tCb15 Hold of Data Input Valid 060 ns

after RD Rising Edge

tRDA etCb15 Bus Enable after RD Rising Edge 85 ns

tARW e(/2 tCb5 ALE Falling Edge to 45 ns

WR Falling Edge

tWW e*/4 tCaWS b15 WR Pulse Width 160 ns

tVe(/2 tCaWS b5 Data Output Valid before 145 ns

WR Rising Edge

tHW e(/4 tCb5 Hold of Data Valid after 20 ns

WR Rising Edge

tDAR e(/4 tCaWS b50 Falling Edge of ALE 75 ns

to Falling Edge of RDY

tRWP etCRDY Pulse Width 100 ns

Address CyclesRead CyclesWrite Cycles

Ready

Input

Note: CLe40 pF.

Note 1: These AC characteristics are guaranteed with external clock drive on CKI having 50% duty cycle and with less than 15 pF load on CKO with rise and fall

times (tCKIR and TCKIL) on CKI input less than 2.5 ns.

Note 2: Do not design with these parameters unless CKI is driven with an active signal. When using a passive crystal circuit, its stability is not guaranteed if either

CKI or CKO is connected to any external logic other than the passive components of the crystal circuit.

Note 3: tHAE is spec’d for case with HLD falling edge occurring at the latest time it can be accepted during the present CPU cycle being executed. If HLD falling

edge occurs later, tHAE as long as (3tCa4WS a72 tCa100) may occur depending on the following CPU instruction cycles, its wait state and ready input.

Note 4: WS (tWAIT) x (number of preprogrammed wait states). Minimum and maximum values are calculated at maximum operating frequency, tCe20 MHz, with

one wait programmed.

Note 5: Due to emulation restrictionsÐactual limits will be better.

Note 6: This is guaranteed by design and not tested.

30 MHz

AC Electrical Characteristics (Continued)

(See Notes 1 and 4 and

Figure 1

thru

Figure 5

CC e5.0V g10% unless otherwise specified, TAe0§Ctoa

70§C for

HPC46083/HPC46003, b40§Ctoa

85§C for HPC36083/HPC36003, b40§Ctoa

105§C for HPC26083/HPC26003, b55§Cto

125§C for HPC16083/HPC16003

Symbol and Formula Parameter Min Max Units Note

fCCKI Operating Frequency 2 30 MHz

tC1 e1/fCCKI Clock Period 33 500 ns

tCKIH CKI High Time 15 ns

tCKIL CKI Low Time 16.6 ns

tCe2/fCCPU Timing Cycle 66 ns

tWAIT etCCPU Wait Sate Period 66 ns

tDC1C2R Delay of CK2 Rising Edge after 0 55 ns (Note 2)

CKI Falling Edge

tDC1C2F Delay of CK2 Falling Edge after 0 55 ns (Note 2)

CKI Falling Edge

fUefC/8 External UART Clock Input Frequency 3.75** MHz

fMW External MICROWIRE/PLUS 1.875 MHz

Clock Input Frequency

fXIN efC/22 External Timer Input Frequency 1.364 MHz

tXIN etCPulse Width for Timer Inputs 66 ns

tUWS MICROWIRE Setup TimeÐMaster 100 ns

ÐSlave 20

tUWH MICROWIRE Hold TimeÐMaster 20 ns

ÐSlave 50

tUWV MICROWIRE Output Valid TimeÐMaster 50 ns

ÐSlave 150

tSALE e*/4 tCa40 HLD Falling Edge before ALE Rising Edge 90 ns

tHWP etCa10 HLD Pulse Width 76 ns

tHAE etCa85 HLDA Falling Edge after HLD Falling Edge 151 ns (Note 3)

tHAD e*/4 tCa85 HLDA Rising Edge after HLD Rising Edge 135 ns

tBF e(/2 tCa66 Bus Float after HLDA Falling Edge 99 ns (Note 5)

tBE e(/2 tCa66 Bus Enable after HLDA Rising Edge 99 ns (Note 5)

tUAS Address Setup Time to Falling Edge of URD 10 ns

tUAH Address Hold Time from Rising Edge of URD 10 ns

tRPW URD Pulse Width 100 ns

tOE URD Falling Edge to Output Data Valid 0 60 ns

tOD Rising Edge of URD to 5 35 ns (Note 6)

Output Data Invalid

tDRDY RDRDY Delay from Rising Edge of URD 70 ns

tWDW UWR Pulse Width 40 ns

tUDS Input Data Valid before Rising Edge of UWR 10 ns

tUDH Input Data Hold after Rising Edge of UWR 15 ns

tAWRRDY Delay from Rising Edge of UWR 70 ns

ClocksTimers

MICROWIRE/

PLUS

External HoldUPI Timing

**This maximum frequency is attainable provided that this external baud clock has a duty cycle such that the high period includes two (2) falling edges of the CK2

clock.

30 MHz

AC Electrical Characteristics

(See Notes 1 and 4 and

Figure 1

thru

Figure 5

CC e5.0V g10% unless otherwise specified, TAe0§Ctoa

70§C for

HPC46083/HPC46003, b40§Ctoa

85§C for HPC36083/HPC36003, b40§Ctoa

105§C for HPC26083/HPC26003, b55§Cto

125§C for HPC16083/HPC16003 (Continued)

Symbol and Formula Parameter Min Max Units Notes

tDC1ALER Delay from CKI Rising Edge to ALE Rising Edge 0 35 ns (Notes 1, 2)

tDC1ALEF Delay from CKI Rising Edge to ALE Falling Edge 0 35 ns (Notes 1, 2)

tDC2ALER e(/4 tCa20 Delay from CK2 Rising Edge to ALE Rising Edge 37 ns (Note 2)

tDC2ALEF e(/4 tCa20 Delay from CK2 Falling Edge to ALE Falling Edge 37 ns (Note 2)

tLL e(/2 tCb9 ALE Pulse Width 24 ns

tST e(/4 tCb7 Setup of Address Valid before ALE Falling Edge 9 ns

tVP e(/4 tCb5 Hold of Address Valid after ALE Falling Edge 11 ns

tARR e(/4 tCb5 ALE Falling Edge to RD Falling Edge 12 ns

tACC etCaWS b32 Data Input Valid after Address Output Valid 100 ns (Note 6)

tRD e(/2 tCaWS b39 Data Input Valid after RD Falling Edge 60 ns

tRW e(/2 tCaWS b14 RD Pulse Width 85 ns

tDR e*/4 tCb15 Hold of Data Input Valid after RD Rising Edge 0 35 ns

tRDA etCb15 Bus Enable after RD Rising Edge 51 ns

tARW e(/2 tCb5 ALE Falling Edge to WR Falling Edge 28 ns

tWW e*/4 tCaWS b15 WR Pulse Width 101 ns

tVe(/2 tCaWS b5 Data Output Valid before WR Rising Edge 94 ns

tHW e(/4 tCb10 Hold of Data Valid after WR Rising Edge 7 ns

tDAR e(/4 tCaWS b50 Falling Edge of ALE to Falling Edge of RDY 33 ns

tRWP etCRDY Pulse Width 66 ns

Address CyclesRead Cycles

Write

Cycles

Ready

Input

Note: CLe40 pF.

Note 1: These AC characteristics are guaranteed with external clock drive on CKI having 50% duty cycle and with less than 15 pF load on CKO wih rise and fall

times (tCKIR and tCKIL) on CKI input less than 2.5 ns.

Note 2: Do not design with these parameters unless CKI is driven with an active signal. When using a passive crystal circuit, its stability is not guaranteed if either

CKI or CKO is connected to any external logic other than the passive components of the crystal circuit.

Note 3: tHAE is spec’d for case with HLD falling edge occurring at the latest time it can be accepted during the present CPU cycle being executed. If HLD falling

edge occurs later, tHAE as long as (3tCa4WS a72 tCa100) may occur depending on the following CPU instruction cycles, its wait states and ready input.

Note 4: WS tWAIT c(number of pre-programmed wait states). Minimum and maximum values are calculated from maximum operating frequency, tCe30 MHz,

with one wait state programmed.

Note 5: Due to emulation restrictionsÐactual limits will be better.

Note 6: This is guaranteed by design and not tested.

CKI Input Signal Characteristics

Rise/Fall Time

TL/DD/8801–35

Duty Cycle

TL/DD/8801–36

FIGURE 1. CKI Input Signal

TL/DD/8801–38

FIGURE 2. Input and Output for AC Tests

Note: AC testing inputs are driven at VIH for a logic ‘‘1’’ and VIL for a logic ‘‘0’’. Output timing measurements are made at 2.0V for a logic ‘‘1’’ and 0.8V for a logic

‘‘0’’.

Timing Waveforms

TL/DD/8801–33

FIGURE 3. CKI, CK2, ALE Timing Diagram

TL/DD/8801–3

FIGURE 4. Write Cycle

TL/DD/8801–4

FIGURE 5. Read Cycle

TL/DD/8801–5

FIGURE 6. Ready Mode Timing

Timing Waveforms (Continued)

TL/DD/8801–6

FIGURE 7. Hold Mode Timing

TL/DD/8801–37

FIGURE 8. MICROWIRE Setup/Hold Timing

TL/DD/8801–9

FIGURE 9. UPI Read Timing

TL/DD/8801–10

FIGURE 10. UPI Write Timing

The following is the Military 883 Electrical Specification for HPC16083 and HPC16003. For latest information on RETS 16083X

contact NSC local sales office.

DC Electrical Specifications Test Conditions VCC e5V g10% (Unless Otherwise Specified) (Note 1)

Symbol Parameter Conditions

SBGRP 1 SBGRP 2 SBGRP 3

Units Notes

a25§Ca125§Cb55§C

Min Max Min Max Min Max

VIH1 Logical ‘‘1’’ Input RESET, NMI, CKI and WO 0.9 0.9 0.9 V

Voltage B10–B13,B

15 (VCC)(V

CC)(V

CC)

VIH2 All Inputs except Port A 0.7 0.7 0.7 V

(VCC)(V

CC)(V

CC)

VIH3 Port A, VCC e5.5V 4.65 4.65 4.65 V (Note 2)

Port A, VCC e4.5V 3.95 3.95 3.95 V (Note 2)

VIL1 Logical ‘‘0’’ Input RESET, NMI, CKI and WO 0.1 0.1 0.1 V

Voltage (VCC)(V

CC)(V

CC)

VIL2 All Inputs except Port A 0.2 0.2 0.2 V

(VCC)(V

CC)(V

CC)

VIL3 Port A, VCC e5.5V 0.7 0.7 0.7 V (Note 3)

Port A, VCC e4.5V 0.5 0.5 0.5 V (Note 3)

VOH2 Logical ‘‘1’’ Output IOH eb

7mA(A

–A15,2.4 2.4 2.4 V

Voltage B10–B12,B

15, CK2)

VOH3 IOH3 eb

1.6 mA (B0–B9,B

13–B14,2.4 2.4 2.4 V

P0–P3), WO (Open Drain)

VOH4 IOH eb

6 mA (ST1, ST2) 2.4 2.4 2.4 V

VOH5 IOH eb

1mA(A

–A15,B

10–B12,B

15)

When Used as an External 2.4 2.4 2.4 V

Address/Data Bus

VOL2 Logical ‘‘0’’ Output IOL e3 mA (CK2, A0–A15,B

10-B12,B

15) 0.4 0.4 0.4 V

VOL3 Voltage IOL e0.5 mA (B0–B9,B

13-B14,P

–P30.4 0.4 0.4 V

WO (Open Drain)

VOL4 IOL e1.6 mA (ST1, ST2) 0.4 0.4 0.4 V

VOL5 IOL e3mA(A

–A15,B

10–B12,B

15)

When Used as an External 0.4 0.4 0.4 V

Address/Data Bus

IOZ TRI-STATE Leakage VSS sVIN sVCC (WO, Port A, g5g5g5mA

Port B), VCC e5.5V

ILI1 Input Leakage VSS sVIN sVCC,V

CC e5.5V

Current (I1–I6,D

–D7, CKI, g2g2g2mA (Note 7)

RESET, EXM, EI)

ILI2 Input Pullup Current VIN e0(I

, RDY/HLD, b50 b3b50 b3b50 b3mA (Note 7)

EXUI), VCC e5.5V

ILI3 Port B12 Pulldown VIN eVCC, Port B12,171717mA

during Reset VCC e5.5V

VRAM RAM Keep Alive Test Duration is 10 ms 2.5 2.5 2.5 V

Voltage

ICC1 Supply Current FIN e20 MHz, RESET eVSS,55 55 55 mA

Dynamic IOH e0 mA, IOL e0 mA, VCC e5.5V

ICC2 Idle Mode Current FIN e20 MHz, External Clock 3.5 3.5 3.5 mA

ICC Halt Mode Current NMI eVCC 222mA

CI/O Input/Output ftest e1.0 MHz, 20 pF (Note 4)

Capacitance I/O Pin to Ground

SBGRP4

CI Input Capacitance ftest e1.0 MHz, 10 pF (Note 4)

Input Pin to Ground

Note 1: Electrical end point testing (when required) for GroupsC&Dshall consist only of subgroups 1, 2, 9 and 10.

Note 2: Port A VIH test limit includes 700 mV offset caused by output loads being on during Data Drive Time.

Note 3: Port A VIL test limit includes 400 mV offset caused by output loads being on during Data Drive Time.

Note 4: Verified at initial qual only.

Note 7: Future revisions of this device will not have pullups on pins I0,I

7which will be tested to ILI1 conditions.

AC Electrical Specifications Test Conditions VCC e4.5V and 5.5V (Unless Otherwise Specified) (Note 1)

Symbol Parameter Conditions

SBGRP 9 SBGRP 10 SBGRP 11

Units Notes

a25§Ca125§Cb55§C

Min Max Min Max Min Max

fCeCKI Freq. Operating Frequency 2 20 2 20 2 20 MHz (Note 5)

tCI e1/FC Clock Period 50 50 50 ns (Note 5)

tCe2/FC Timing Cycle 100 100 100 ns (Note 5)

tLL e(/2 tCb9 ALE Pulse Width 41 41 41 ns (Note 6)

tST e(/4 tCb7 Address Valid to 18 18 18 ns (Note 6)

ALE Falling Edge

tWAIT etCeWS Wait State Period 100 100 100 ns (Note 5)

FMW e0.0625 fCExternal MICROWIRE/PLUS 1.25 1.25 1.25 MHz (Note 6)

CLK Input Frequency

fUe0.125 fCExternal UART 2.5 2.5 2.5 MHz (Note 5)

Clock Input Frequency

tDCIC2 CK2 Delay From CK1 55 55 55 ns (Note 6)

tARR e(/4 tCb5 ALE Falling Edge 20 20 20 ns (Note 6)

to RD Falling Edge

tRW e(/2 RD Pulse Width 140 140 140 ns (Note 6)

tCaWS b10

tDR e3.4 tCb15 Data Hold after 0 60 0 60 0 60 ns (Note 6)

Rising Edge of RD

tRD e(/2 RD Falling Edge to 85 85 85 ns (Note 6)

tCaWS b65 Data in Valid

tRDA etCb15 RD Rising Edge to 85 85 85 ns (Note 6)

Address Valid

tVP e(/4 tCb5 Address Hold from 20 20 20 ns (Note 6)

ALE Falling Edge

tARW e(/2 tCb5 ALE Trailing Edge 45 45 45 ns (Note 6)

to WR Falling Edge

tWW e*/4 tCaWS b15 WR Pulse Width 160 160 160 ns (Note 6)

tHW e(/4 tCb5 Data Hold after 20 20 20 ns (Note 6)

Trailing Edge of WR

tVe(/2 tCaWS b5 Data Valid before 145 145 145 ns (Note 6)

Rising Edge of WR

tDAR e(/4 tCaWS b50 Falling Edge of ALE 75 75 75 ns (Note 6)

to Falling Edge of RDY

AC Electrical Specifications Test Conditions VCC e4.5V and 5.5V (Unless Otherwise Specified) (Note 1)

(Continued)

Symbol Parameter Conditions

SBGRP 9 SBGRP 10 SBGRP 11

Units Notes

a25§Ca125§Cb55§C

Min Max Min Max Min Max

tRWP etCRDY Pulse Width 100 100 100 ns (Note 6)

tSALE e*/4 tCa40 Falling Edge of HLD to 115 115 115 ns (Note 6)

to Rising Edge of ALE

tHWP etCa10 HLD Pulse Width 110 110 110 ns (Note 6)

tHAD e*/4 tCa85 Rising Edge on HLD to 160 160 160 ns (Note 6)

Rising Edge on HLDA

tHAE etCa100 Falling Edge on HLD to 200 200 200 ns (Note 6)

Falling Edge on HLDA

tBF e(/2 tCa66 BUS Float before 116 116 116 ns (Note 6)

Falling Edge on HLDA

tBE e(/2 tCa66 BUS Enable from 116 116 116 ns (Note 6)

Rising Edge of HLDA

tUAS Address Setup Time to 10 10 10 ns (Note 6)

Falling Edge of URD

tUAH Address Hold Time from 10 10 10 ns (Note 6)

Rising Edge of URD

tRPW URD Pulse Width 100 100 100 ns (Note 6)

tOE URD Falling Edge to 60 60 60 ns (Note 6)

Data Out Valid

tRDRDY RDY Delay from 70 70 70 ns (Note 6)

Rising Edge of URD

tWDW UWR Pulse Width 40 40 40 ns (Note 6)

tUDS Data Invalid before 10 10 10 ns (Note 6)

Trailing Edge of UWR

tUDH Data In Hold after 15 15 15 ns (Note 6)

Rising Edge of UWR

tAWRRDY Delay from 70 70 70 ns (Note 6)

Rising Edge of UWR

Note 1: Electrical end point testing (when required) for groupsC&Dshall consist only of subgroups 1, 2, 9 and 10.

Note 5: Tested in functional patterns. Not directly measured.

Note 6: CLe70 pF. Input and output levels are per DC characteristics.

Pin Descriptions

The HPC16083 is available in 68-pin PLCC, LDCC, PGA,

and 80-pin PQFP packages.

I/O PORTS

Port A is a 16-bit bidirectional I/O port with a data direction

fined as an input or output. When accessing external memo-

ry, port A is used as the multiplexed address/data bus.

Port B is a 16-bit port with 12 bits of bidirectional I/O similar

in structure to Port A. Pins B10, B11, B12 and B15 are gen-

eral purpose outputs only in this mode. Port B may also be

configured via a 16-bit function register BFUN to individually

allow each pin to have an alternate function.

B0: TDX UART Data Output

B1:

B2: CKX UART Clock (Input or Output)

B3: T2IO Timer2 I/O Pin

B4: T3IO Timer3 I/O Pin

B5: SO MICROWIRE/PLUS Output

B6: SK MICROWIRE/PLUS Clock (Input or Output)

B7: HLDA Hold Acknowledge Output

B8: TS0 Timer Synchronous Output

B9: TS1 Timer Synchronous Output

B10: UA0 Address 0 Input for UPI Mode

B11: WRRDY Write Ready Output for UPI Mode

B12:

B13: TS2 Timer Synchronous Output

Pin Descriptions (Continued)

B14: TS3 Timer Synchronous Output

B15: RDRDY Read Ready Output for UPI Mode

When accessing external memory, four bits of port B

are used as follows:

B10: ALE Address Latch Enable Output

B11: WR Write Output

B12: HBE High Byte Enable Output/Input

(sampled at reset)

B15: RD Read Output

Port I is an 8-bit input port that can be read as general

purpose inputs and is also used for the following functions:

I0:

I1: NMI Nonmaskable Interrupt Input

I2: INT2 Maskable Interrupt/Input Capture/URD

I3: INT3 Maskable Interrupt/Input Capture/UWR

I4: INT4 Maskable Interrupt/Input Capture

I5: SI MICROWIRE/PLUS Data Input

I6: RDX UART Data Input

I7:

Port D is an 8-bit input port that can be used as general

purpose digital inputs.

Port P is a 4-bit output port that can be used as general

purpose data, or selected to be controlled by timers 4

through 7 in order to generate frequency, duty cycle and

pulse width modulated outputs.

POWER SUPPLY PINS

VCC1 and

VCC2 Positive Power Supply

GND Ground for On-Chip Logic

DGND Ground for Output Buffers

Note: There are two electrically connected VCC pins on the chip, GND and

DGND are electrically isolated. Both VCC pins and both ground pins

must be used.

CLOCK PINS

CKI The Chip System Clock Input

CKO The Chip System Clock Output (inversion of CKI)

Pins CKI and CKO are usually connected across an external

crystal.

CK2 Clock Output (CKI divided by 2)

OTHER PINS

WO This is an active low open drain output that sig-

nals an illegal situation has been detected by the

Watch Dog logic.

ST1 Bus Cycle Status Output: indicates first opcode

fetch.

ST2 Bus Cycle Status Output: indicates machine

states (skip, interrupt and first instruction cycle).

RESET is an active low input that forces the chip to re-

start and sets the ports in a TRI-STATE mode.

RDY/HLD has two uses, selected by a software bit. It’s ei-

ther a READY input to extend the bus cycle for

slower memories, or a HOLD request input to put

the bus in a high impedance state for DMA pur-

poses.

NC (no connection) do not connect anything to this

pin.

EXM External memory enable (active high) disables

internal ROM and maps it to external memory.

EI External interrupt with vector address

FFF1:FFF0. (Rising/falling edge or high/low lev-

el sensitive). Alternately can be configured as

4th input capture.

EXUI External interrupt which is internally OR’ed with

the UART interrupt with vector address

FFF3:FFF2 (Active Low).

Connection Diagrams

Plastic and Ceramic Leaded Chip Carriers

TL/DD/8801–11

Top View

See NS Package Number EL68A or V68A

See Part Selection for Ordering Information

Connection Diagrams (Continued)

Plastic Quad Flatpack

TL/DD/8801–34

Top View

See NS Package Number VJE80A

See Part Selection for Ordering Information

Pin Grid Array Pinout

TL/DD/8801–12

Top View

(looking down on component side of PC Board)

See NS Package Number U68A

See Part Selection for Ordering Information

PortsA&B

The highly flexible A and B ports are similarly structured.

The Port A (see

Figure 11

), consists of a data register and a

direction register. Port B (see

Figures 12, 13, 14

) has an

alternate function register in addition to the data and direc-

tion registers. All the control registers are read/write regis-

ters.

The associated direction registers allow the port pins to be

individually programmed as inputs or outputs. Port pins se-

lected as inputs, are placed in a TRI-STATE mode by reset-

ting corresponding bits in the direction register.

A write operation to a port pin configured as an input causes

the value to be written into the data register, a read opera-

tion returns the value of the pin. Writing to port pins config-

ured as outputs causes the pins to have the same value,

reading the pins returns the value of the data register.

Primary and secondary functions are multiplexed onto Port

B through the alternate function register (BFUN). The sec-

ondary functions are enabled by setting the corresponding

bits in the BFUN register.

TL/DD/8801–13

FIGURE 11. Port A: I/O Structure

TL/DD/8801–14

FIGURE 12. Structure of Port B Pins B0, B1, B2, B5, B6 and B7 (Typical Pins)

PortsA&B(Continued)

TL/DD/8801–15

FIGURE 13. Structure of Port B Pins B3, B4, B8, B9, B13 and B14 (Timer Synchronous Pins)

TL/DD/8801–16

FIGURE 14. Structure of Port B Pins B10, B11, B12 and B15 (Pins with Bus Control Roles)

Operating Modes

To offer the user a variety of I/O and expanded memory

options, the HPC16083 has four operating modes. The

ROMless HPC16003 has one mode of operation. The vari-

ous modes of operation are determined by the state of both

the EXM pin and the EA bit in the PSW register. The state of

the EXM pin determines whether on-chip ROM will be ac-

cessed or external memory will be accessed within the ad-

dress range of the on-chip ROM. The on-chip ROM range of

the HPC16083 is E000 to FFFF (8k bytes). The HPC16003

has no on-chip ROM and is intended for use with external

memory for program storage. A logic ‘‘0’’ state on the EXM

pin will cause the HPC device to address on-chip ROM

when the Program Counter (PC) contains addresses within

the on-chip ROM address range. A logic ‘‘1’’ state on the

EXM pin will cause the HPC device to address memory that

is external to the HPC when the PC contains on-chip ROM

addresses. The EXM pin should always be pulled high (logic

‘‘1’’) on the HPC16003 because no on-chip ROM is avail-

able. The function of the EA bit is to determine the legal

addressing range of the HPC device. A logic ‘‘0’’ state in the

EA bit of the PSW register does two thingsÐaddresses are

limited to the on-chip ROM range and on-chip RAM and

of the WATCHDOG logic is engaged. A logic ‘‘1’’ in the EA

bit enables accesses to be made anywhere within the 64k

byte address range and the ‘‘illegal address detection’’ fea-

ture of the WATCHDOG logic is disabled. The EA bit should

be set to ‘‘1’’ by software when using the HPC16003 to

disable the ‘‘illegal address detection’’ feature of WATCH-

DOG.

All HPC devices can be used with external memory. Exter-

nal memory may be any combination of RAM and ROM.

Both 8-bit and 16-bit external data bus modes are available.

Upon entering an operating mode in which external memory

is used, port A becomes the Address/Data bus. Four pins of

port B become the control lines ALE, RD,WRand HBE. The

High Byte Enable pin (HBE) is used in 16-bit mode to select

high order memory bytes. The RD and WR signals are only

generated if the selected address is off-chip. The 8-bit mode

is selected by pulling HBE high at reset. If HBE is left float-

ing or connected to a memory device chip select at reset,

the 16-bit mode is entered. The following sections describe

the operating modes of the HPC16083 and HPC16003.

Note: The HPC devices use 16-bit words for stack memory. Therefore,

when using the 8-bit mode, User’s Stack must be in internal RAM.

HPC16083 Operating Modes

SINGLE CHIP NORMAL MODE

In this mode, the HPC16083 functions as a self-contained

microcomputer (see

Figure 15

) with all memory (RAM and

ROM) on-chip. It can address internal memory only, consist-

ing of 8k bytes of ROM (E000 to FFFF) and 256 bytes of on-

chip RAM and registers (0000 to 01FF). The ‘‘illegal address

detection’’ feature of the WATCHDOG is enabled in the Sin-

gle-Chip Normal mode and a WATCHDOG Output (WO) will

occur if an attempt is made to access addresses that are

outside of the on-chip ROM and RAM range of the device.

Ports A and B are used for I/O functions and not for ad-

dressing external memory. The EXM pin and the EA bit of

the PSW register must both be logic ‘‘0’’ to enter the Single-

Chip Normal mode.

EXPANDED NORMAL MODE

The Expanded Normal mode of operation enables the

HPC16083 to address external memory in addition to the

on-chip ROM and RAM (see Table I). WATCHDOG illegal

address detection is disabled and memory accesses may

be made anywhere in the 64k byte address range without

triggering an illegal address condition. The Expanded Nor-

mal mode is entered with the EXM pin pulled low (logic ‘‘0’’)

and setting the EA bit in the PSW register to ‘‘1’’.

SINGLE-CHIP ROMLESS MODE

In this mode, the on-chip mask programmed ROM of the

HPC16083 is not used. The address space corresponding

to the on-chip ROM is mapped into external memory so 8k

bytes of external memory may be used with the HPC16083

(see Table I). The WATCHDOG circuitry detects illegal ad-

dresses (addresses not within the on-chip ROM and RAM

range). The Single-Chip ROMless mode is entered when the

EXM pin is pulled high (logic ‘‘1’’) and the EA bit is logic ‘‘0’’.

EXPANDED ROMLESS MODE

This mode of operation is similar to Single-Chip ROMless

mode in that no on-chip ROM is used, however, a full 64k

bytes of external memory may be used. The ‘‘illegal address

detection’’ feature of WATCHDOG is disabled. The EXM pin

must be pulled high (logic ‘‘1’’) and the EA bit in the PSW

TABLE I. HPC16083 Operating Modes

Operating EXM EA Memory

Mode Pin Bit Configuration

Single-Chip Normal 0 0 E000:FFFF on-chip

Expanded Normal 0 1 E000:FFFF on-chip

0200:DFFF off-chip

Single-Chip ROMless 1 0 E000:FFFF off-chip

Expanded ROMless 1 1 0200:FFFF off-chip

Note: In all operating modes, the on-chip RAM and Registers (0000:01FF)

may be accessed.

HPC16003 Operating Modes

EXPANDED ROMLESS MODE (HPC16003)

Because the HPC16003 has no on-chip ROM, it has only

one mode of operation, the Expanded ROMless Mode. The

EXM pin must be pulled high (logic ‘‘1’’) on power up, the

EA bit in the PSW register should be set to a ‘‘1’’. The

HPC16003 is a ROMless device and is intended for use with

external memory. The external memory may be any combi-

nation of ROM and RAM. Up to 64k bytes of external mem-

ory may be accessed. It is necessary to vector on reset to

an address between F000 and FFFF, therefore the user

should have external memory at these addresses. The EA

bit in the PSW register must immediately be set to ‘‘1’’ at the

beginning of the user’s program to disable illegal address

detection in the WATCHDOG logic.

TABLE II. HPC16003 Operating Modes

Operating EXM EA Memory

Mode Pin Bit Configuration

Expanded ROMless 1 1 0200:FFFF off-chip

Note: The on-chip RAM and Registers (0000:01FF) of the HPC16003 may

be accessed at all times.

TL/DD/8801–17

FIGURE 15. Single-Chip Mode

TL/DD/8801–18

FIGURE 16. 8-Bit External Memory

HPC16003 Operating Modes (Continued)

TL/DD/8801–19

FIGURE 17. 16-Bit External Memory

Wait States

The internal ROM can be accessed at the maximum operat-

ing frequency with one wait state. With 0 wait states, internal

ROM accesses are limited to )/3 fCmax.

The HPC16083 provides four software selectable Wait

States that allow access to slower memories. The Wait

States are selected by the state of two bits in the PSW

the instruction cycle, allowing the user to interface with slow

memories and peripherals.

Power Save Modes

Two power saving modes are available on the HPC16083:

HALT and IDLE. In the HALT mode, all processor activities

are stopped. In the IDLE mode, the on-board oscillator and

timer T0 are active but all other processor activities are

stopped. In either mode, all on-board RAM, registers and

I/O are unaffected.

HALT MODE

The HPC16083 is placed in the HALT mode under software

control by setting bits in the PSW. All processor activities,

including the clock and timers, are stopped. In the HALT

mode, power requirements for the HPC16083 are minimal

and the applied voltage (VCC) may be decreased without

altering the state of the machine. There are two ways of

exiting the HALT mode: via the RESET or the NMI. The

RESET input reinitializes the processor. Use of the NMI in-

put will generate a vectored interrupt and resume operation

from that point with no initialization. The HALT mode can be

enabled or disabled by means of a control register HALT

enable. To prevent accidental use of the HALT mode the

HALT enable register can be modified only once.

IDLE MODE

The HPC16083 is placed in the IDLE mode through the

PSW. In this mode, all processor activity, except the on-

board oscillator and Timer T0, is stopped. As with the HALT

mode, the processor is returned to full operation by the

RESET or NMI inputs, but without waiting for oscillator stabi-

lization. A timer T0 overflow will also cause the HPC16083

to resume normal operation.

HPC16083 Interrupts

Complex interrupt handling is easily accomplished by the

HPC16083’s vectored interrupt scheme. There are eight

possible interrupt sources as shown in Table III.

TABLE III. Interrupts

Vector Interrupt Arbitration

Address Source Ranking

FFFF:FFFE RESET 0

FFFD:FFFC Nonmaskable external on 1

rising edge of I1 pin

FFFB:FFFA External interrupt on I2 pin 2

FFF9:FFF8 External interrupt on I3 pin 3

FFF7:FFF6 External interrupt on I4 pin 4

FFF5:FFF4 Overflow on internal timers 5

FFF3:FFF2 Internal on the UART

transmit/receive complete 6

or external on EXUI

FFF1:FFF0 External interrupt on EI pin 7

Interrupt Arbitration

The HPC16083 contains arbitration logic to determine which

interrupt will be serviced first if two or more interrupts occur

simultaneously. The arbitration ranking is given in Table III.

The interrupt on RESET has the highest rank and is serv-

iced first.

Interrupt Processing

Interrupts are serviced after the current instruction is com-

pleted except for the RESET, which is serviced immediately.

RESET and EXUI are level-LOW-sensitive interrupts and EI

is programmable for edge-(RISING or FALLING) or level-

(HIGH or LOW) sensitivity. All other interrupts are edge-sen-

sitive. NMI is positive-edge sensitive. The external interrupts

on I2, I3 and I4 can be software selected to be rising or

falling edge. External interrupt (EXUI) is shared with the

UART interrupt. This interrupt is level-low sensitive. To se-

lect this interrupt disable the ERI and ETI UART interrupt

bits in the ENUI register. To select the UART interrupt leave

this pin floating or tie it high.

Interrupt Control Registers

The HPC16083 allows the various interrupt sources and

conditions to be programmed. This is done through the vari-

ous control registers. A brief description of the different con-

trol registers is given below.

INTERRUPT ENABLE REGISTER (ENIR)

RESET and the External Interrupt on I1 are non-maskable

interrupts. The other interrupts can be individually enabled

or disabled. Additionally, a Global Interrupt Enable Bit in the

ENIR Register allows the Maskable interrupts to be collec-

tively enabled or disabled. Thus, in order for a particular

interrupt to request service both the individual enable bit

and the Global Interrupt bit (GIE) have to be set.

INTERRUPT PENDING REGISTER (IRPD)

The IRPD register contains a bit allocated for each interrupt

vector. The occurrence of specified interrupt trigger condi-

tions causes the appropriate bit to be set. There is no indi-

cation of the order in which the interrupts have been re-

ceived. The bits are set independently of the fact that the

interrupts may be disabled. IRPD is a Read/Write register.

The bits corresponding to the maskable, external interrupts

are normally cleared by the HPC16083 after servicing the

interrupts.

For the interrupts from the on-board peripherals, the user

has the responsibility of resetting the interrupt pending flags

through software.

The NMI bit is read only and I2, I3, and I4 are designed as to

only allow a zero to be written to the pending bit (writing a

one has no affect). A LOAD IMMEDIATE instruction is to be

the only instruction used to clear a bit or bits in the IRPD

the other pending bits are not affected.

INTERRUPT CONDITION REGISTER (IRCD)

Three bits of the register select the input polarity of the

external interrupt on I2, I3, and I4.

Servicing the Interrupts

The Interrupt, once acknowledged, pushes the program

counter (PC) onto the stack thus incrementing the stack

pointer (SP) twice. The Global Interrupt Enable bit (GIE) is

copied into the CGIE bit of the PSW register; it is then reset,

thus disabling further interrupts. The program counter is

loaded with the contents of the memory at the vector ad-

dress and the processor resumes operation at this point. At

the end of the interrupt service routine, the user does a

RETI instruction to pop the stack and re-enable interrupts if

the CGIE bit is set, or RET to just pop the stack if the CGIE

bit is clear, and then returns to the main program. The GIE

bit can be set in the interrupt service routine to nest inter-

rupts if desired.

Figure 18

shows the Interrupt Enable Logic.

RESET

The RESET input initializes the processor and sets ports A

and B in the TRI-STATE condition and port P in the LOW

state. RESET is an active-low Schmitt trigger input. The

processor vectors to FFFF:FFFE and resumes operation at

the address contained at that memory location (which must

correspond to an on board location). The Reset vector ad-

dress must be between E000 and FFFF when using the

HPC16003.

TL/DD/8801–20

FIGURE 18. Block Diagram of Interrupt Logic

Timer Overview

The HPC16083 contains a powerful set of flexible timers

enabling the HPC16083 to perform extensive timer func-

tions; not usually associated with microcontrollers.

The HPC16083 contains nine 16-bit timers. Timer T0 is a

free-running timer, counting up at a fixed CKI/16 (Clock In-

put/16) rate. It is used for WATCHDOG logic, high speed

event capture, and to exit from the IDLE mode. Conse-

quently, it cannot be stopped or written to under software

control. Timer T0 permits precise measurements by means

of the capture registers I2CR, I3CR, and I4CR. A control bit

in the register TMMODE configures timer T1 and its associ-

ated register R1 as capture registers I3CR and I2CR. The

capture registers I2CR, I3CR, and I4CR respectively, record

the value of timer T0 when specific events occur on the

interrupt pins I2, I3, and I4. The control register IRCD pro-

grams the capture registers to trigger on either a rising edge

or a falling edge of its respective input. The specified edge

can also be programmed to generate an interrupt (see

Fig-

ure 19

The HPC16083 provides an additional 16-bit free running

timer, T8, with associated input capture register EICR (Ex-

ternal Interrupt Capture Register) and Configuration Regis-

ter, EICON. EICON is used to select the mode and edge of

the EI pin. EICR is a 16-bit capture register which records

the value of T8 (which is identical to T0) when a specific

event occurs on the EI pin.

The timers T2 and T3 have selectable clock rates. The

clock input to these two timers may be selected from the

following two sources: an external pin, or derived internally

by dividing the clock input. Timer T2 has additional capabili-

ty of being clocked by the timer T3 underflow. This allows

the user to cascade timers T3 and T2 into a 32-bit timer/

counter. The control register DIVBY programs the clock in-

put to timers T2 and T3 (see

Figure 20

The timers T1 through T7 in conjunction with their registers

form Timer-Register pairs. The registers hold the pulse du-

ration values. All the Timer-Register pairs can be read from

or written to. Each timer can be started or stopped under

software control. Once enabled, the timers count down, and

upon underflow, the contents of its associated register are

automatically loaded into the timer.

TL/DD/8801–21

FIGURE 19. Timers T0, T1 and T8

with Four Input Capture Registers

SYNCHRONOUS OUTPUTS

The flexible timer structure of the HPC16083 simplifies

pulse generation and measurement. There are four syn-

chronous timer outputs (TS0 through TS3) that work in con-

junction with the timer T2. The synchronous timer outputs

can be used either as regular outputs or individually pro-

grammed to toggle on timer T2 underflows (see

Figure 20

Timer/register pairs 4–7 form four identical units which can

generate synchronous outputs on port P (see

Figure 21

TL/DD/8801–22

FIGURE 20. Timers T2–T3 Block

Timer Overview (Continued)

TL/DD/8801–23

FIGURE 21. Timers T4–T7 Block

Maximum output frequency for any timer output can be ob-

tained by setting timer/register pair to zero. This then will

produce an output frequency equal to (/2 the frequency of

the source used for clocking the timer.

Timer Registers

There are four control registers that program the timers. The

divide by (DIVBY) register programs the clock input to tim-

ers T2 and T3. The timer mode register (TMMODE) contains

control bits to start and stop timers T1 through T3. It also

contains bits to latch, acknowledge and enable interrupts

from timers T0 through T3. The control register PWMODE

similarly programs the pulse width timers T4 through T7 by

allowing them to be started, stopped, and to latch and en-

able interrupts on underflows. The PORTP register contains

bits to preset the outputs and enable the synchronous timer

output functions.

Timer Applications

The use of Pulse Width Timers for the generation of various

waveforms is easily accomplished by the HPC16083.

Frequencies can be generated by using the timer/register

pairs. A square wave is generated when the register value is

a constant. The duty cycle can be controlled simply by

changing the register value.

TL/DD/8801–24

FIGURE 22. Square Wave Frequency Generation

Synchronous outputs based on Timer T2 can be generated

on the 4 outputs TS0–TS3. Each output can be individually

programmed to toggle on T2 underflow. Register R2 con-

tains the time delay between events.

Figure 23

is an exam-

ple of synchronous pulse train generation.

WATCHDOG Logic

The WATCHDOG Logic monitors the operations taking

place and signals upon the occurrence of any illegal activity.

The illegal conditions that trigger the WATCHDOG logic are

potentially infinite loops and illegal addresses. Should the

TL/DD/8801–25

FIGURE 23. Synchronous Pulse Generation

WATCHDOG register not be written to before Timer T0

overflows twice, or more often than once every 4096

counts, an infinite loop condition is assumed to have oc-

curred. An illegal condition also occurs when the processor

generates an illegal address when in the Single-Chip

modes.*Any illegal condition forces the WATCHDOG Out-

put (WO) pin low. The WO pin is an open drain output and

can be connected to the RESET or NMI inputs or to the

users external logic.

*Note: See Operating Modes for details.

MICROWIRE/PLUS

MICROWIRE/PLUS is used for synchronous serial data

communications (see

Figure 24

). MICROWIRE/PLUS has

an 8-bit parallel-loaded, serial shift register using SI as the

input and SO as the output. SK is the clock for the serial

shift register (SIO). The SK clock signal can be provided by

an internal or external source. The internal clock rate is pro-

grammable by the DIVBY register. A DONE flag indicates

when the data shift is completed.

TL/DD/8801–26

FIGURE 24. MICROWIRE/PLUS

The MICROWIRE/PLUS capability enables it to interface

with any of National Semiconductor’s MICROWIRE periph-

erals (i.e., A/D converters, display drivers, EEPROMs).

MICROWIRE/PLUS Operation

The HPC16083 can enter the MICROWIRE/PLUS mode as

the master or a slave. A control bit in the IRCD register

determines whether the HPC16083 is the master or slave.

The shift clock is generated when the HPC16083 is config-

ured as a master. An externally generated shift clock on the

SK pin is used when the HPC16083 is configured as a slave.

When the HPC16083 is a master, the DIVBY register pro-

grams the frequency of the SK clock. The DIVBY register

allows the SK clock frequency to be programmed in 15 se-

lectable steps from 64 Hz to 1 MHz with CKI at 16.0 MHz.

The contents of the SIO register may be accessed through

any of the memory access instructions. Data waiting to be

transmitted in the SIO register is clocked out on the falling

edge of the SK clock. Serial data on the SI pin is clocked in

on the rising edge of the SK clock.

MICROWIRE/PLUS Application

Figure 25

illustrates a MICROWIRE/PLUS arrangement for

an automotive application. The microcontroller-based sys-

tem could be used to interface to an instrument cluster and

various parts of the automobile. The diagram shows two

HPC16083 microcontrollers interconnected to other MI-

CROWIRE peripherals. HPC16083 Ý1 is set up as the mas-

ter and initiates all data transfers. HPC16083 Ý2 is set up

as a slave answering to the master.

The master microcontroller interfaces the operator with the

system and could also manage the instrument cluster in an

automotive application. Information is visually presented to

the operator by means of a LCD display controlled by the

COP472 display driver. The data to be displayed is sent

serially to the COP472 over the MICROWIRE/PLUS link.

Data such as accumulated mileage could be stored and re-

trieved from the EEPROM COP494. The slave HPC16083

could be used as a fuel injection processor and generate

timing signals required to operate the fuel valves. The mas-

ter processor could be used to periodically send updated

values to the slave via the MICROWIRE/PLUS link. To

speed up the response, chip select logic is implemented by

connecting an output from the master to the external inter-

rupt input on the slave.

TL/DD/8801–27

FIGURE 25. MICROWIRE/PLUS Application

HPC16083 UART

The HPC16083 contains a software programmable UART.

The UART (see

Figure 26

) consists of a transmit shift regis-

ter, a receiver shift register and five addressable registers,

as follows: a transmit buffer register (TBUF), a receiver buff-

er register (RBUF), a UART control and status register

(ENU), a UART receive control and status register (ENUR)

and a UART interrupt and clock source register (ENUI). The

ENU register contains flags for transmit and receive func-

tions; this register also determines the length of the data

frame (8 or 9 bits) and the value of the ninth bit in transmis-

sion. The ENUR register flags framing and data overrun er-

rors while the UART is receiving. Other functions of the

ENUR register include saving the ninth bit received in the

data frame and enabling or disabling the UART’s Wake-up

Mode of operation. The determination of an internal or ex-

ternal clock source is done by the ENUI register, as well as

selecting the number of stop bits and enabling or disabling

transmit and receive interrupts.

The baud rate clock for the Receiver and Transmitter can

be selected for either an internal or external source using

two bits in the ENUI register. The internal baud rate is pro-

grammed by the DIVBY register. The baud rate may be se-

lected from a range of 8 Hz to 128 kHz in binary steps or T3

underflow. By selecting a 9.83 MHz crystal, all standard

baud rates from 75 baud to 38.4 kBaud can be generated.

The external baud clock source comes from the CKX pin.

The Transmitter and Receiver can be run at different rates

by selecting one to operate from the internal clock and the

other from an external source.

The HPC16083 UART supports two data formats. The first

format for data transmission consists of one start bit, eight

data bits and one or two stop bits. The second data format

for transmission consists of one start bit, nine data bits, and

one or two stop bits. Receiving formats differ from transmis-

sion only in that the Receiver always requires only one stop

bit in a data frame.

UART Wake-up Mode

The HPC16083 UART features a Wake-up Mode of opera-

tion. This mode of operation enables the HPC16083 to be

networked with other processors. Typically in such environ-

ments, the messages consist of addresses and actual data.

Addresses are specified by having the ninth bit in the data

frame set to 1. Data in the message is specified by having

the ninth bit in the data frame reset to 0.

The UART monitors the communication stream looking for

addresses. When the data word with the ninth bit set is

received, the UART signals the HPC16083 with an interrupt.

The processor then examines the content of the receiver

buffer to decide whether it has been addressed and whether

to accept subsequent data.

TL/DD/8801–28

FIGURE 26. UART Block Diagram

Universal Peripheral Interface

The Universal Peripheral Interface (UPI) allows the

HPC16083 to be used as an intelligent peripheral to another

processor. The UPI could thus be used to tightly link two

HPC16083’s and set up systems with very high data ex-

change rates. Another area of application could be where a

HPC16083 is programmed as an intelligent peripheral to a

host system such as the Series 32000Émicroprocessor.

Figure 27

illustrates how a HPC16083 could be used an an

intelligent peripherial for a Series 32000-based application.

The interface consists of a Data Bus (port A), a Read Strobe

(URD), a Write Strobe (UWR), a Read Ready Line (RDRDY),

a Write Ready Line (WRRDY) and one Address Input (UA0).

The data bus can be either eight or sixteen bits wide.

The URD and UWR inputs may be used to interrupt the

HPC16083. The RDRDY and WRRDY outputs may be used

to interrupt the host processor.

The UPI contains an Input Buffer (IBUF), an Output Buffer

(OBUF) and a Control Register (UPIC). In the UPI mode,

port A on the HPC16083 is the data bus. UPI can only be

used if the HPC16083 is in the Single-Chip mode.

Shared Memory Support

Shared memory access provides a rapid technique to ex-

change data. It is effective when data is moved from a pe-

ripheral to memory or when data is moved between blocks

of memory. A related area where shared memory access

proves effective is in multiprocessing applications where

two CPUs share a common memory block. The HPC16083

supports shared memory access with two pins. The pins are

the RDY/HLD input pin and the HLDA output pin. The user

can software select either the Hold or Ready function by the

state of a control bit. The HLDA output is multiplexed onto

port B.

The host uses DMA to interface with the HPC16083. The

host initiates a data transfer by activating the HLD input of

the HPC16083. In response, the HPC16083 places its sys-

tem bus in a TRI-STATE Mode, freeing it for use by the host.

The host waits for the acknowledge signal (HLDA) from the

HPC16083 indicating that the sytem bus is free. On receiv-

ing the acknowledge, the host can rapidly transfer data into,

or out of, the shared memory by using a conventional DMA

controller. Upon completion of the message transfer, the

host removes the HOLD request and the HPC16083 re-

sumes normal operations.

Figure 28

illustrates an application of the shared memory

interface between the HPC16083 and a Series 32000 sys-

tem. To insure proper operation, the interface logic shown is

recommended as the means for enabling and disabling the

user’s bus.

Memory

The HPC16083 has been designed to offer flexibility in

memory usage. A total address space of 64 kbytes can be

addressed with 8 kbytes of ROM and 256 bytes of RAM

available on the chip itself. The ROM may contain program

instructions, constants or data. The ROM and RAM share

the same address space allowing instructions to be execut-

ed out of RAM.

Program memory addressing is accomplished by the 16-bit

program counter on a byte basis. Memory can be addressed

directly by instructions or indirectly through the B, X and SP

registers. Memory can be addressed as words or bytes.

Words are always addressed on even-byte boundaries. The

HPC16083 uses memory-mapped organization to support

registers, I/O and on-chip peripheral functions.

The HPC16083 memory address space extends to 64

kbytes and registers and I/O are mapped as shown in Table

IV.

TL/DD/8801–29

FIGURE 27. HPC16083 as a Peripheral: (UPI Interface to Series 32000 Application)

Shared Memory Support (Continued)

TL/DD/8801–30

FIGURE 28. Shared Memory Application: HPC16083 Interface to Series 32000 System

TABLE IV. HPC16083 Memory Map

FFFF:FFF0 Interrupt Vectors

FFEF:FFD0 JSRP Vectors

FFCF:FFCE

: : On-Chip ROM

E001:E000 USER MEMORY

DFFF:DFFE

: : External Expansion

0201:0200 Memory

01FF:01FE

: : On-Chip RAM USER RAM

01C1:01C0

0195:0194 WATCHDOG Address WATCHDOG Logic

0192 T0CON Register

0191:0190 TMMODE Register

018F:018E DIVBY Register

018D:018C T3 Timer

018B:018A R3 Register Timer Block T0:T3

0189:0188 T2 Timer

0187:0186 R2 Register

0185:0184 I2CR Register/ R1

0183:0182 I3CR Register/ T1

0181:0180 I4CR Register

015E:015F EICR

015C EICON

0153:0152 Port P Register

0151:0150 PWMODE Register

014F:014E R7 Register

014D:014C T7 Timer

014B:014A R6 Register Timer Block T4:T7

0149:0148 T6 Timer

0147:0146 R5 Register

0145:0144 T5 Timer

0143:0142 R4 Register

0141:0140 T4 Timer

0128 ENUR Register

0126 TBUF Register

0124 RBUF Register UART

0122 ENUI Register

0120 ENU Register

0104 Port D Input Register

00F5:00F4 BFUN Register PORTSA&B

00F3:00F2 DIR B Register CONTROL

00F1:00F0 DIR A Register / IBUF

00E6 UPIC Register UPI CONTROL

00E3:00E2 Port B PORTSA&B

00E1:00E0 Port A / OBUF

00DE:00DF (reserved)

00DD:00DC HALT Enable Register PORT CONTROL

00D8 Port I Input Register & INTERRUPT

00D6 SIO Register CONTROL

00D4 IRCD Register REGISTERS

00D2 IRPD Register

00D0 ENIR Register

00CF:00CE X Register

00CD:00CC B Register

00CB:00CA K Register

00C9:00C8 A Register HPC CORE

00C7:00C6 PC Register REGISTERS

00C5:00C4 SP Register

00C3:00C2 (reserved)

00C0 PSW Register

00BF:00BE On-Chip

:: RAM USER RAM

0001:0000

Design Considerations

Designs using the HPC family of 16-bit high speed CMOS

microcontrollers need to follow some general guidelines on

usage and board layout.

Floating inputs are a frequently overlooked problem. CMOS

inputs have extremely high impedance and, if left open, can

float to any voltage. You should thus tie unused inputs to

VCC or ground, either through a resistor or directly. Unlike

the inputs, unused outputs should be left floating to allow

the output to switch without drawing any DC current.

To reduce voltage transients, keep the supply line’s parasit-

ic inductances as low as possible by reducing trace lengths,

using wide traces, ground planes, and by decoupling the

supply with bypass capacitors. In order to prevent additional

voltage spiking, this local bypass capacitor must exhibit low

inductive reactance. You should therefore use high frequen-

cy ceramic capacitors and place them very near the IC to

minimize wiring inductance.

#Keep VCC bus routing short. When using double sided or

multilayer circuit boards, use ground plane techniques.

#Keep ground lines short, and on PC boards make them

as wide as possible, even if trace width varies. Use sepa-

rate ground traces to supply high current devices such as

relay and transmission line drivers.

#In systems mixing linear and logic functions and where

supply noise is critical to the analog components’ per-

formance, provide separate supply buses or even sepa-

rate supplies.

#If you use local regulators, bypass their inputs with a tan-

talum capacitor of at least 1 mF and bypass their outputs

with a 10 mFto50mF tantalum or aluminum electrolytic

capacitor.

#If the system uses a centralized regulated power supply,

usea10mFto20mF tantalum electrolytic capacitor or a

50 mFto100mF aluminum electrolytic capacitor to de-

couple the VCC bus connected to the circuit board.

#Provide localized decoupling. For random logic, a rule of

thumb dictates approximately 10 nF (spaced within

12 cm) per every two to five packages, and 100 nF for

every 10 packages. You can group these capacitances,

but it’s more effective to distribute them among the ICs. If

the design has a fair amount of synchronous logic with

outputs that tend to switch simultaneously, additional de-

coupling might be advisable. Octal flip flop and buffers in

bus-oriented circuits might also require more decoupling.

Note that wire-wrapped circuits can require more decou-

pling than ground plane or multilayer PC boards.

TL/DD/8801–40

FIGURE 29. Recommended Crystal Circuit

A recommended crystal oscillator circuit to be used with the

HPC is shown below. See table for recommended compo-

nent values. The recommended values given in the table

below have yielded consistent results and are made to

match a crystal with a 18 pF load capacitance, with some

small allowance for layout capacitance.

A recommended layout for the oscillator network should be

as close to the processor as physically possible, entirely

within 1×distance. This is to reduce lead inductance from

long PC traces, as well as interference from other compo-

nents, and reduce trace capacitance. The layout contains a

large ground plane either on the top or bottom surface of

the board to provide signal shielding, and a convenient loca-

tion to ground both the HPC, and the case of the crystal.

It is very critical to have an extremely clean power supply for

the HPC crystal oscillator. Ideally one would like a VCC and

ground plane that provide low inductance power lines to the

chip. The power planes in the PC board should be decou-

pled with three decoupling capacitors as close to the chip

as possible. A 1.0 mF, a 0.1 mF, and a 0.001 mF dipped mica

or ceramic cap mounted as close to the HPC as is physically

possible on the board, using the shortest leads, or surface

mount components. This should provide a stable power

supply, and noiseless ground plane which will vastly im-

prove the performance of the crystal oscillator network.

HPC Oscillator Table

XTAL

Frequency R1(X)

(MHz)

s2 1500

4 1200

6 910

8 750

10 600

12 470

14 390

16 300

18 220

20 180

22 150

24 120

26 100

28 75

30 62

RFe3.3 MX

C1e27 pF

C2e33 pF

XTAL Specifications: The crystal used was an M-TRON Industries MP-1 Se-

ries XTAL. ‘‘AT’’ cut parallel resonant

CLe18 pF

Series Resistance is:

25X@25 MHz

40X@10 MHz

600X@2 MHz

HPC16083 CPU

The HPC16083 CPU has a 16-bit ALU and six 16-bit regis-

ters

Arithmetic Logic Unit (ALU)

The ALU is 16 bits wide and can do 16-bit add, subtract and

shift or logic AND, OR and exclusive OR in one timing cycle.

The ALU can also output the carry bit to a 1-bit C register.

Accumulator (A) Register

The 16-bit A register is the source and destination register

for most I/O, arithmetic, logic and data memory access op-

erations.

Address (B and X) Registers

The 16-bit B and X registers can be used for indirect ad-

dressing. They can automatically count up or down to se-

quence through data memory.

Boundary (K) Register

The 16-bit K register is used to set limits in repetitive loops

of code as register B sequences through data memory.

Stack Pointer (SP) Register

The 16-bit SP register is the pointer that addresses the

stack. The SP register is incremented by two for each push

or call and decremented by two for each pop or return. The

stack can be placed anywhere in user memory and be as

deep as the available memory permits.

Program (PC) Register

The 16-bit PC register addresses program memory.

Addressing Modes

ADDRESSING MODESÐACCUMULATOR AS

DESTINATION

This is the ‘‘normal’’ mode of addressing for the HPC16083

(instructions are single-byte). The operand is the memory

addressed by the B register (or X register for some instruc-

tions).

Direct

The instruction contains an 8-bit or 16-bit address field that

directly points to the memory for the operand.

Indirect

The instruction contains an 8-bit address field. The contents

of the WORD addressed points to the memory for the oper-

and.

Indexed

The instruction contains an 8-bit address field and an 8- or

16-bit displacement field. The contents of the WORD ad-

dressed is added to the displacement to get the address of

the operand.

Immediate

The instruction contains an 8-bit or 16-bit immediate field

that is used as the operand.

The operand is the memory addressed by the X register.

This mode automatically increments or decrements the X

Conditional Skip

The operand is the memory addressed by the B register.

This mode automatically increments or decrements the B

then compared with the K register. A skip condition is gener-

ated if B goes past K.

ADDRESSING MODESÐDIRECT MEMORY AS

DESTINATION

Direct Memory to Direct Memory

The instruction contains two 8- or 16-bit address fields. One

field directly points to the source operand and the other field

directly points to the destination operand.

Immediate to Direct Memory

The instruction contains an 8- or 16-bit address field and an

8- or 16-bit immediate field. The immediate field is the oper-

and and the direct field is the destination.

Double Register Indirect Using the B and X Registers

Used only with Reset, Set and IF bit instructions; a specific

bit within the 64 kbyte address range is addressed using the

B and X registers. The address of a byte of memory is

formed by adding the contents of the B register to the most

significant 13 bits of the X register. The specific bit to be

modified or tested within the byte of memory is selected

using the least significant 3 bits of register X.

HPC Instruction Set Description

Mnemonic Description Action

ARITHMETIC INSTRUCTIONS

ADD Add MAaMemI

MA carry

ADC Add with carry MAaMemIaC

MA carry

ADDS Add short imm8 MAaimm8

MA carry

DADC Decimal add with carry MAaMemIaC

MA (Decimal) carry

SUBC Subtract with carry MAbMemIaC

MA carry

DSUBC Decimal subtract w/carry MAbMemIaC

MA (Decimal) carry

MULT Multiply (unsigned) MA*MemI

MA&X,0

K, 0

DIV Divide (unsigned) MA/MemI

MA, rem.

X, 0

K, 0

DIVD Divide Double Word (unsigned) (X & MA)/MemI

MA, rem

X, 0

K, carry

IFEQ If equal Compare MA & MemI, Do next if equal

IFGT If greater than Compare MA & MemI, Do next if MA lMemI

AND Logical and MA and MemI

OR Logical or MA or MemI

XOR Logical exclusive-or MA xor MemI

MEMORY MODIFY INSTRUCTIONS

INC Increment Mem a1

Mem

DECSZ Decrement, skip if 0 Mem b1

Mem, Skip next if Mem e0

HPC Instruction Set Description (Continued)

Mnemonic Description Action

BIT INSTRUCTIONS

SBIT Set bit 1

Mem.bit

RBIT Reset bit 0

Mem.bit

IFBIT If bit If Mem.bit is true, do next instr.

MEMORY TRANSFER INSTRUCTIONS

LD Load MemI

Load, incr/decr X Mem(X)

A, X g1 (or 2)

ST Store to Memory A

Mem

X Exchange A

Mem

Exchange, incr/decr X A

Mem(X), X g1 (or 2)

PUSH Push Memory to Stack W

W(SP), SPa2

POP Pop Stack to Memory SPb2

SP, W(SP)

LDS Load A, incr/decr B, Mem(B)

A, B g1 (or 2)

Skip on condition Skip next if B greater/less than K

XS Exchange, incr/decr B, Mem(B)

A,Bg1 (or 2)

Skip on condition Skip next if B greater/less than K

LD B Load B immediate imm

LD K Load K immediate imm

LD X Load X immediate imm

LD BK Load B and K immediate imm

B,imm

ACCUMULATOR AND C INSTRUCTIONS

CLR A Clear A 0

INC A Increment A A a1

DEC A Decrement A A b1

COMP A Complement A 1’s complement of A

SWAP A Swap nibbles of A A15:12

A11:8

A7:4

A3:0

RRC A Rotate A right thru C C

A15

...

RLC A Rotate A left thru C C

A15

...

SHR A Shift A right 0

A15

...

SHL A Shift A left C

A15

...

SC Set C 1

RC Reset C 0

IFC IF C Do next if C e1

IFNC IF not C Do next if C e0

TRANSFER OF CONTROL INSTRUCTIONS

JSRP Jump subroutine from table PC

[SP],SPa2

W(tableÝ)

JSR Jump subroutine relative PC

[SP],SPa2

SP,PCaÝ

(Ýis a1025 to b1023)

JSRL Jump subroutine long PC

[SP],SPa2

SP,PCaÝ

JP Jump relative short PCaÝ

PC(Ýis a32 to b31)

JMP Jump relative PCaÝ

PC(Ýis a257 to b255)

JMPL Jump relative long PCaÝ

JID Jump indirect at PC aAPC

JIDW then Mem(PC)aPC

NOP No Operation PC a1

RET Return SPb2

SP,[SP]

RETSK Return then skip next SPb2

SP,[SP]

PC, & skip

RETI Return from interrupt SPb2

SP,[SP]

PC, interrupt re-enabled

Note: W is 16-bit word of memory

MA is Accumulator A or direct memory (8 or 16-bit)

Mem is 8-bit byte or 16-bit word of memory

MemI is 8- or 16-bit memory or 8 or 16-bit immediate data

imm is 8-bit or 16-bit immediate data

imm8 is 8-bit immediate data only

Memory Usage

Number Of Bytes For Each Instruction (number in parenthesis is 16-Bit field)

Using Accumulator A To Direct Memory

Reg Indir. Direct Indir. Index Immed. Direct Immed.

(B) (X) ******

LD 1 1 2(4) 3 4(5) 2(3) 3(5) 5(6) 3(4) 5(6)

X 1 1 2(4) 3 4(5) Ð ÐÐÐÐ

ST 1 1 2(4) 3 4(5) Ð ÐÐÐÐ

ADC 1 2 3(4) 3 4(5) 4(5) 4(5) 5(6) 4(5) 5(6)

ADDS Ð Ð Ð Ð Ð 2 ÐÐÐÐ

SBC 1 2 3(4) 3 4(5) 4(5) 4(5) 5(6) 4(5) 5(6)

DADC 1 2 3(4) 3 4(5) 4(5) 4(5) 5(6) 4(5) 5(6)

DSBC 1 2 3(4) 3 4(5) 4(5) 4(5) 5(6) 4(5) 5(6)

ADD 1 2 3(4) 3 4(5) 2(3) 4(5) 5(6) 4(5) 5(6)

MULT 1 2 3(4) 3 4(5) 2(3) 4(5) 5(6) 4(5) 5(6)

DIV 1 2 3(4) 3 4(5) 2(3) 4(5) 5(6) 4(5) 5(6)

DIVD 1 2 3(4) 3 4(5) Ð 4(5) 5(6) 4(5) 5(6)

IFEQ 1 2 3(4) 3 4(5) 2(3) 4(5) 5(6) 4(5) 5(6)

IFGT 1 2 3(4) 3 4(5) 2(3) 4(5) 5(6) 4(5) 5(6)

AND 1 2 3(4) 3 4(5) 2(3) 4(5) 5(6) 4(5) 5(6)

OR 1 2 3(4) 3 4(5) 2(3) 4(5) 5(6) 4(5) 5(6)

XOR 1 2 3(4) 3 4(5) 2(3) 4(5) 5(6) 4(5) 5(6)

*8-bit direct address

**16-bit direct address

Instructions that modify memory directly

(B) (X) Direct Indir Index B&X

SBIT 1 2 3(4) 3 4(5) 1

RBIT 1 2 3(4) 3 4(5) 1

IFBIT 1 2 3(4) 3 4(5) 1

DECSZ 3 2 2(4) 3 4(5)

INC 3 2 2(4) 3 4(5)

Immediate Load Instructions

Immed.

LD B,*2(3)

LD X,*2(3)

LD K,*2(3)

LD BK,*,*3(5)

Auto Increment and Decrement

(Ba)(B

)

LDS A,*11

XS A,*11

(Xa)(X

)

LD A,*11

XA,*11

Instructions Using A and C

CLR A 1

INC A 1

DEC A 1

COMP A 1

SWAP A 1

RRC A 1

RLC A 1

SHR A 1

SHL A 1

SC 1

RC 1

IFC 1

IFNC 1

Transfer of Control Instructions

JSRP 1

JSR 2

JSRL 3

JP 1

JMP 2

JMPL 3

JID 1

JIDW 1

NOP 1

RET 1

RETSK 1

RETI 1

Stack Reference Instructions

Direct

PUSH 2

POP 2

Code Efficiency

One of the most important criteria of a single chip microcon-

troller is code efficiency. The more efficient the code, the

more features that can be put on a chip. The memory size

on a chip is fixed so if code is not efficient, features may

have to be sacrificed or the programmer may have to buy a

larger, more expensive version of the chip.

The HPC16083 has been designed to be extremely code-

efficient. The HPC16083 looks very good in all the standard

coding benchmarks; however, it is not realistic to rely only

on benchmarks. Many large jobs have been programmed

onto the HPC16083, and the code savings over other popu-

lar microcontrollers has been considerable.

Reasons for this saving of code include the following:

SINGLE BYTE INSTRUCTIONS

The majority of instructions on the HPC16083 are single-

byte. There are two especially code-saving instructions:

JP is a 1-byte jump. True, it can only jump within a range of

plus or minus 32, but many loops and decisions are often

within a small range of program memory. Most other micros

need 2-byte instructions for any short jumps.

JSRP is a 1-byte call subroutine. The user makes a table of

the 16 most frequently called subroutines and these calls

will only take one byte. Most other micros require two and

even three bytes to call a subroutine. The user does not

have to decide which subroutine addresses to put into the

table; the assembler can give this information.

EFFICIENT SUBROUTINE CALLS

The 2-byte JSR instructions can call any subroutine within

plus or minus 1k of program memory.

MULTIFUNCTION INSTRUCTIONS FOR DATA MOVE-

MENT AND PROGRAM LOOPING

The HPC16083 has single-byte instructions that perform

multiple tasks. For example, the XS instruction will do the

following:

1. Exchange A and memory pointed to by the B register

2. Increment or decrement the B register

3. Compare the B register to the K register

4. Generate a conditional skip if B has passed K

The value of this multipurpose instruction becomes evident

when looping through sequential areas of memory and exit-

ing when the loop is finished.

BIT MANIPULATION INSTRUCTIONS

Any bit of memory, I/O or registers can be set, reset or

tested by the single byte bit instructions. The bits can be

addressed directly or indirectly. Since all registers and I/O

are mapped into the memory, it is very easy to manipulate

specific bits to do efficient control.

DECIMAL ADD AND SUBTRACT

This instruction is needed to interface with the decimal user

world.

It can handle both 16-bit words and 8-bit bytes.

The 16-bit capability saves code since many variables can

be stored as one piece of data and the programmer does

not have to break his data into two bytes. Many applications

store most data in 4-digit variables. The HPC16083 supplies

8-bit byte capability for 2-digit variables and literal variables.

MULTIPLY AND DIVIDE INSTRUCTIONS

The HPC16083 has 16-bit multiply, 16-bit by 16-bit divide,

and 32-bit by 16-bit divide instructions. This saves both

code and time. Multiply and divide can use immediate data

or data from memory. The ability to multiply and divide by

immediate data saves code since this function is often

needed for scaling, base conversion, computing indexes of

arrays, etc.

Development Support

HPC MICROCONTROLLER DEVELOPMENT SYSTEM

National Semiconductor’s HPC microcontroller develop-

ment is supported through a combination of third party hard-

ware and software, coupled with NSC in-house developed

software consisting of compilers, assemblers, linkers, cross

converters and debuggers. The code modules can then be

transferred to many EPROM programming systems.

CUSTOMER SUPPORT

National Semiconductor’s Customer Response Center

(CRC) provides samples, literature, prices, product informa-

tion. The CRC’s engineering staff is prepared to answer

questions regarding specific design and application ques-

tions regarding specific design and application questions.

Call any weekday 7:00 AM to 7:00 PM central time (US) to

1-800-272-9959 or contact your regional business center.

Development Support (Continued)

DIAL-A-HELPER

Dial-A-Helper is a service provided by the Microcontroller

Applications group. Dial-A-Helper is an Electronic Bulletin

Board Information system and additionally, provides the ca-

pability of remotely accessing the development system at a

customer site.

INFORMATION SYSTEM

The Dial-A-Helper system provides access to an automated

information storage and retrieval system that may be ac-

cessed over standard dial-up telephone lines 24 hours a

day. The system capabilities include a MESSAGE SECTION

(electronic mail) for communications to and from the Micro-

controller Applications Group and a FILE SECTION which

consists of several file areas where valuable application

software and utilities can be found. The minimum require-

ment for accessing Dial-A-Helper is a Hayes compatible mo-

dem.

If the user has a PC with a communications package then

files from the FILE SECTION can be down loaded to disk for

later use.

Order P/N: MDS-DIAL-A-HLP

Information system package contains:

DIAL-A-HELPER Users Manual

Public Domain Communications Software

FACTORY APPLICATIONS SUPPORT

Dial-A-Helper also provides immediate factory applications

support.

Development Tools Selection Table

Order Description Manual

Number Number

NSC

HPC-DEV-IBMA User’s manuals and disks for Assembler/Linker/Librarian package for the IBM PC 424410836-001

HPC-DEV-IBMC User’s manuals and disks for C Compiler and Assembler/Linker/Librarian package for the 424410883-001

IBM PC 424410836-001

HPC-DEV-HDB User’s manuals and disks for Source Symbolic Debugger, C Compiler and Assembler/Linker/ 424421640-001

Librarian Package for the IBM PC 424410883-001

For use with the HP system only 424410836-001

Signum

USP-HPC Base UnitÐUser’s manual and screen debugger

POD-HPC164 30 MHz POD and interface board for HPC46164

POD-HPC064 30 MHz POD and interface board for HPC46064

POD-HPC083 30 MHz POD and interface board for HPC46083

POD-HPC100 40 MHz POD and interface board for HPC46100

POD-HPC164-3 20 MHz 3.3V POD and interface board for HPC43164

POD-HPC064-3 20 MHz 3.3V POD and interface board for HPC43064

POD-HPC100-3 30 MHz 3.3V POD and interface board for HPC43100

Hewlett Packard

64700A Card cage

64706A 48 Channel Analyzer

64775S Software interface

OPT006 Software interface to IBM PC

64775G HPC16083 Emulator with 128K RAM

64775H HPC16064 Emulator with 128K RAM

64775J HPC16400E Emulator with 128K RAM

64701A LAN Interface (Optional)

Contact your local NSC sales office for ordering information

The Signum system comes with power supply, base unit software, RS232 link to host and emulator pod for the HPC Family member

ordered. It also includes an interface connector that fits between the POD and the Target board. This system does not support

deelopment of HPC46400E based systems. Source symbolic debug capability for both assembly and C language is included in the

screen debugger.

The HP model 64775 emulator/analyzer provides in system emulation up to 20 MHz, 0 wait state memory, and 30 MHz, 1 wait state

memory for al devices except the HPC46400E, which is 20 MHz, 1 wait state. A reverse assembler is also available.

The recommended configuration for the IBM PC compatible host is a 386 or higher running DOS 3.0 or higher with 4 MB of

extended memory. An RS232 serial port capable of running at 19.2K baud and a three button mouse is recommended for the

Signum System interface.

Development Support (Continued)

Voice: (408) 721-5582

Modem: (408) 739-1162

Baud: 300 or 1200 Baud

Set-Up: Length: 8-bit

Parity: None

Stop Bit: 1

Operation: 24 hrs, 7 days

DIAL-A-HELPER

TL/DD/8801–32

Part Selection

The HPC family includes devices with many different options and configurations to meet various application needs. The number

HPC16083 has been generically used throughout this datasheet to represent the whole family of parts. The following chart

explains how to order various options available when ordering HPC family members.

Note: All options may not currently be available.

TL/DD/8801–31

FIGURE 30. HPC Family Part Numbering Scheme

Examples

HPC46003V20 Ð ROMless, Commercial temp. (0§Cto70

C), PLCC

HPC16083XXX/U20 Ð 8k masked ROM, Military temp. (b55§Ctoa

125§C), PGA

HPC26083XXX/V20 Ð 8k masked ROM, Automotive temp. (b40§Ctoa

105§C), PLCC

Physical Dimensions inches (millimeters)

Leaded Chip Carrier Package (EL)

Order Number HPC16083XXX/L20, HPC16083XXX/L30, HPC16003EL20, HPC26003EL20, HPC36003EL20,

HPC46003EL20, HPC16003EL30, HPC26003EL30, HPC36003EL30 or HPC46003EL30

NS Package Number EL68A

Pin Grid Array Pinout (U)

Order Number HPC16083XXX/U20, HPC16083XXX/U30, HPC16003U20 or HPC16003U30

NS Package Number U68A

Physical Dimensions inches (millimeters) (Continued)

Plastic Leaded Chip Carrier (V)

Order Number HPC16083XXX/V20, HPC26083XXX/V20, HPC36083XXX/V20, HPC46083XXX/V20, HPC16083XXX/V30,

HPC26083XXX/V30, HPC36083XXX/V30, HPC16083XXX/V30, HPC16003V20, HPC26003V20, HPC36003V20,

HPC46003V20, HPC16003V30, HPC26003V30, HPC36003V30 or HPC46003V30

NS Package Number V68A

HPC16083/HPC26083/HPC36083/HPC46083/HPC16003/HPC26003/

HPC36003/HPC46003 High-Performance microControllers

Physical Dimensions inches (millimeters) (Continued)

80-Pin QFP Package (VF)

Order Number HPC46083XXX/F20, HPC46083XXX/F30, HPC46003VF20 or HPC46003VF30

NS Package Number VF80B

LIFE SUPPORT POLICY

NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT

DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL

SEMICONDUCTOR CORPORATION. As used herein:

1. Life support devices or systems are devices or 2. A critical component is any component of a life

systems which, (a) are intended for surgical implant support device or system whose failure to perform can

into the body, or (b) support or sustain life, and whose be reasonably expected to cause the failure of the life

failure to perform, when properly used in accordance support device or system, or to affect its safety or

with instructions for use provided in the labeling, can effectiveness.

be reasonably expected to result in a significant injury

to the user.

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National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.