NEC PD78076, uPD78078, PD78P078, PD78078, uPD78P078Y User Manual

User’s Manual

µ

PD78078, 78078Y Subseries

8-bit Single-chip Microcontrollers

µ

PD78076

µ

PD78078

µ

PD78P078

µ

PD78076Y

µ

PD78078Y

µ

PD78P078Y

Document No. U10641EJ4V0UM00 (4th edition)
Date Published December 1997 N

©

Printed in Japan

1994

[MEMO]

2

NOTES FOR CMOS DEVICES

1 PRECAUTION AGAINST ESD FOR SEMICONDUCTORS

Note:
Strong electric field, when exposed to a MOS device, can cause destruction of the gate oxide and
ultimately degrade the device operation. Steps must be taken to stop generation of static electricity
as much as possible, and quickly dissipate it once, when it has occurred. Environmental control
must be adequate. When it is dry, humidifier should be used. It is recommended to avoid using
insulators that easily build static electricity. Semiconductor devices must be stored and transported
in an anti-static container, static shielding bag or conductive material. All test and measurement
tools including work bench and floor should be grounded. The operator should be grounded using
wrist strap. Semiconductor devices must not be touched with bare hands. Similar precautions need
to be taken for PW boards with semiconductor devices on it.

2 HANDLING OF UNUSED INPUT PINS FOR CMOS

Note:
No connection for CMOS device inputs can be cause of malfunction. If no connection is provided
to the input pins, it is possible that an internal input level may be generated due to noise, etc., hence
causing malfunction. CMOS devices behave differently than Bipolar or NMOS devices. Input levels
of CMOS devices must be fixed high or low by using a pull-up or pull-down circuitry. Each unused
pin should be connected to V
being an output pin. All handling related to the unused pins must be judged device by device and
related specifications governing the devices.

DD or GND with a resistor, if it is considered to have a possibility of

3 STATUS BEFORE INITIALIZATION OF MOS DEVICES

Note:
Power-on does not necessarily define initial status of MOS device. Production process of MOS
does not define the initial operation status of the device. Immediately after the power source is
turned ON, the devices with reset function have not yet been initialized. Hence, power-on does
not guarantee out-pin levels, I/O settings or contents of registers. Device is not initialized until the
reset signal is received. Reset operation must be executed immediately after power-on for devices
having reset function.

FIP, EEPROM, IEBus, and QTOP are trademarks of NEC Corporation.
MS-DOS, Windows, and WindowsNT are either registered trademarks or trademarks of Microsoft
Corporation in the United States and/or other countries.
IBM DOS, IBM PC/AT, and PC DOS are trademarks of International Business Machines Corporation.
HP9000 Series 700 and HP-UX are trademarks of Hewlett-Packard Company.
SPARCstation is a trademark of SPARC International, Inc.
SunOS is a trademark of Sun Microsystems, Inc.
Ethernet is a trademark of XEROX Corporation.
OSF/Motif is a trademark of Open Software Foundation, Inc.
NEWS and NEWS-OS are trademarks of Sony Corporation.
TRON is an abbreviation of The Realtime Operating System Nucleus.
ITRON is an abbreviation of Industrial TRON.

3

The export of these products from Japan is regulated by the Japanese government. The export of some or all of
these products may be prohibited without governmental license. To export or re-export some or all of these products
from a country other than Japan may also be prohibited without a license from that country. Please call an NEC
sales representative.

License not needed:

The customer must judge the need for license:

The application circuits and their parameters are for reference only and are not intended for use in actual design-ins.

µ

PD78P078KL-T, 78P078YKL-T

µ

PD78076GC-xxx-7EA, 78076GC-xxx-8EU, 78076GF-xxx-3BA,

µ

PD78076YGF-xxx-3BA

µ

PD78078GC-xxx-7EA, 78078GC-xxx-8EU, 78078GF-xxx-3BA,

µ

PD78078YGF-xxx-3BA

µ

PD78P078GC-7EA, 78P078GC-8EU, 78P078GF-3BA, 78P078YGF-3BA

Purchase of NEC I2C components conveys a license under the Philips I2C Patent Rights to use these
components in an I

2

C system, provided that the system conforms to the I2C Standard Specification as

defined by Philips.

The information in this document is subject to change without notice.

No part of this document may be copied or reproduced in any form or by any means without the prior written consent
of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this
document.
NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual property
rights of third parties by or arising from use of a device described herein or any other liability arising from use of
such device. No license, either express, implied or otherwise, is granted under any patents, copyrights or other
intellectual property rights of NEC Corporation or others.
While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices,
the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or property
arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety measures in
its design, such as redundancy, fire-containment, and anti-failure features.
NEC devices are classified into the following three quality grades:
“Standard”, “Special”, and “Specific”. The Specific quality grade applies only to devices developed based on a
customer designated “quality assurance program” for a specific application. The recommended applications of
a device depend on its quality grade, as indicated below. Customers must check the quality grade of each device
before using it in a particular application.

Standard: Computers, office equipment, communications equipment, test and measurement equipment, audio

and visual equipment, home electronic appliances, machine tools, personal electronic equipment
and industrial robots

Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster

systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for
life support)

Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support

systems or medical equipment for life support, etc.
The quality grade of NEC devices is “Standard” unless otherwise specified in NEC’s Data Sheets or Data Books.
If customers intend to use NEC devices for applications other than those specified for Standard quality grade, they
should contact an NEC sales representative in advance.
Anti-radioactive design is not implemented in this product.

M7 96.5

4

Regional Information

Some information contained in this document may vary from country to country. Before using any NEC
product in your application, please contact the NEC office in your country to obtain a list of authorized
representatives and distributors. They will verify:

• Device availability

• Ordering information

• Product release schedule

• Availability of related technical literature

• Development environment specifications (for example, specifications for third-party tools and
components, host computers, power plugs, AC supply voltages, and so forth)

• Network requirements

In addition, trademarks, registered trademarks, export restrictions, and other legal issues may also vary
from country to country.

NEC Electronics Inc. (U.S.)

Santa Clara, California
Tel: [phone]

800-366-9782

Fax: [phone]

800-729-9288

NEC Electronics (Germany) GmbH

Duesseldorf, Germany
Tel: [phone]
Fax: [phone]

NEC Electronics (UK) Ltd.

Milton Keynes, UK
Tel: [phone]
Fax: [phone]

NEC Electronics Italiana s.r.1.

Milano, Italy
Tel: [phone]
Fax: [phone]

NEC Electronics (Germany) GmbH

Benelux Office
Eindhoven, The Netherlands
Tel:[phone]
Fax: [phone]

NEC Electronics (France) S.A.

Velizy-Villacoublay, France
Tel:[phone]
Fax: [phone]

NEC Electronics (France) S.A.

Spain Office
Madrid, Spain
Tel: [phone]
Fax: [phone]

NEC Electronics (Germany) GmbH

Scandinavia Office
Taeby, Sweden
Tel: [phone]
Fax: [phone]

NEC Electronics Hong Kong Ltd.

Hong Kong
Tel:[phone]
Fax: [phone]

NEC Electronics Hong Kong Ltd.

Seoul Branch
Seoul, Korea
Tel: [phone]
Fax: [phone]

NEC Electronics Singapore Pte. Ltd.

United Square, Singapore 1130
Tel:[phone]
Fax: [phone]

NEC Electronics Taiwan Ltd.

Taipei, Taiwan
Tel: [phone]
Fax: [phone]

NEC do Brasil S.A.

Cumbica-Guarulhos-SP, Brasil
Tel: [phone]
Fax: [phone]

J97. 8

5

Major Revisions in This Edition

Page Description

Throughout The following products have been changed from “under development” to “already developed”.

µ

PD78078Y Subseries: µPD78076Y, 78078Y, 78P078Y

The following packages have been added to the µPD78078Y Subseries.

100-pin plastic LQFP (Fine pitch) (14 × 14 mm, resin thickness 1.4 mm)
p. 139 to 143, Block diagrams of ports have been changed.
149, 153 Figure 6-5. Block Diagram of P20, P21, P23 to P26, Figure 6-6. Block Diagram of P22 and P27,

Figure 6-7. Block Diagram of P20, P21, P23 to P26, Figure 6-8. Block Diagram of P22 and P27,

Figure 6-9. Block Diagram of P30 to P37, Figure 6-16. Block Diagram of P71 and P72,

Figure 6-20. Block Diagram of P100 and P101

p. 169 Table 7-2. Relationship between CPU Clock and Minimum Instruction Execution Time has been

added.
p. 181 8.1 Outline of Timers Incorporated into µPD78078, 78078Y Subseries has been added.
p. 241 Figure 9-10. Square Wave Output Operation Timing has been added.
p. 262 Figure 10-13. Square Wave Output Operation Timing has been added.
p. 277 Figure 12-1. Block Diagram of Watchdog Timer has been corrected.
p. 316, 366 Precautions have been added to 17.1, 18.1 Serial Interface Channel 0 Functions.
p. 323, 374 Precautions have been added to 17.3 (2), 18.3 (2) Serial Operating Mode Register 0 (CSIM0).
p. 372 Note about the BSYE flag in Figure 17-5. Serial Bus Interface Control Register Format has been

changed.
p. 336 Precautions have been added to 17.4.3 (2) (a) Bus release signal (REL), (b) Command signal

(CMD).
p. 449 19.4.3 (3) (d) Busy control option, (e) Busy & strobe control option, and (f) Bit slippage

detection function have been changed to (4) Synchronization control, and the explanation has

been improved.
p. 481 20.4.2 (2) (d) Reception

Conditions of INTSR generation when receive error occurrs has been corrected.
p. 482 Figure 20-10. Receive Error Timing has been corrected, and note has been added.
p. 490 20.4.3 (3) MSB/LSB switching as the start bit has been added.
p. 491 20.4.4 Restrictions on using UART mode has been added.
p. 569 Precautions have been added to Table 27-1. Differences between µPD78P078, 78P078Y and Mask

ROM Versions.

p. 597 APPENDIX A DIFFERENCES BETWEEN µPD78078, 78075B SUBSERIES AND µPD78070A has

been added.

p. 599 to 612 APPENDIX B DEVELOPMENT TOOL

Entirely revised: Supports in-circuit emulator IE-78K0-NS

p. 613, 614 APPENDIX C EMBEDDED SOFTWARE

Entirely revised: Fuzzy inference developing support system has been deleted.

The mark shows major revised points.

6

INTRODUCTION

Readers This manual has been prepared for user engineers who understand the functions

of the

µ

PD78078 and 78078Y Subseries and design and develop its application
systems and programs.
The µPD78078 and 78078Y Subseries consist of the following members.

• µPD78078 Subseries: µPD78076, 78078, 78P078

µ

PD78078Y Subseries: µPD78076Y, 78078Y, 78P078Y

•

Caution Of the above members, the following devices with the suffix

KL-T should be used only for experiment or function evaluation,
because they are not intended for use in equipment that will be
mass-produced and do not have enough reliability.

• µPD78P078KL-T and 78P078YKL-T

Purpose This manual is intended for users to understand the functions described in the

Organization below.

Organization The

How to Read This Manual Before reading this manual, you should have general knowledge of electric and

µ

PD78078 and 78078Y Subseries manual is separated into two parts: this

manual and the instructions edition (common to the 78K/0 Series).

µ

PD78078, 78078Y Subseries 78K/0 Series

User’s Manual User’s Manual

(This manual) — Instructions —

• Pin functions • CPU functions

• Internal block functions • Instruction set

• Interrupt • Explanation of each instruction

• Other on-chip peripheral functions

logic circuits and microcontroller.

When you want to understand the functions in general:
→ Read this manual in the order of the contents.
How to interpret the register format:

→

For the circled bit number, the bit name is defined as a reserved word in RA78K/

0, and in CC78K/0, already defined in the header file named sfrbit.h.
When you know a register name and want to confirm its details:
→ Read “APPENDIX D REGISTER INDEX”
To know the differences between the µPD78054 and 78054Y Subseries:

µ

→ See sections 1.10 and 2.10, titled “Differences with

and “Differences with
To know the µPD78078 and 78078Y Subseries instruction function in detail:
→ Refer to “78K/0 Series User’s Manual—Instructions (U12326E)”
To know the application example of each function of the µPD78078 and 78078Y
Subseries:

→ Refer to separately available Application Note.

µ

PD78054Y Subseries”, respectively.

PD78054 Subseries”

7

Chapter Organization: This manual divides the descriptions for the µPD78078 and 78078Y Subseries into different

chapters as shown below. Read only the chapters related to the device you use.

Chapter

Chapter 1 Outline (µPD78078 Subseries) √ —
Chapter 2 Outline (µPD78078Y Subseries) — √
Chapter 3 Pin Function (µPD78078 Subseries) √ —
Chapter 4 Pin Function (µPD78078Y Subseries) — √
Chapter 5 CPU Architecture √√
Chapter 6 Port Functions √√
Chapter 7 Clock Generator √√
Chapter 8 16-Bit Timer/Event Counter √√
Chapter 9 8-Bit Timer/Event Counters 1 and 2 √√
Chapter 10 8-Bit Timer/Event Counters 5 and 6 √√
Chapter 11 Watch Timer √√
Chapter 12 Watchdog Timer √√
Chapter 13 Clock Output Control Circuit √√
Chapter 14 Buzzer Output Control Circuit √√
Chapter 15 A/D Converter √√

µ

PD78078µPD78078Y

Subseries Subseries

Chapter 16 D/A Converter √√
Chapter 17 Serial Interface Channel 0 (µPD78078 Subseries) √ —
Chapter 18 Serial Interface Channel 0 (µPD78078Y Subseries) — √
Chapter 19 Serial Interface Channel 1 √√
Chapter 20 Serial Interface Channel 2 √√
Chapter 21 Real-Time Output Port √√
Chapter 22 Interrupt and Test Functions √√
Chapter 23 External Device Expansion Function √√
Chapter 24 Standby Function √√
Chapter 25 Reset Function √√
Chapter 26 ROM Correction √√
Chapter 27µPD78P078, µPD78P078Y √√
Chapter 28 Instruction Set √√

8

Differences between µPD78078 and µPD78078Y Subseries

The µPD78078 and µPD78078Y Subseries are different in the following functions of the serial
interface channel 0.

Mode of serial interface channel 0

3-wire serial I/O mode √√
2-wire serial I/O mode √√
SBI (serial bus interface) mode √ —
I2C (Inter IC) bus mode — √
√ : Supported
— : Not supported

µ

PD78078µPD78078Y

Subseries Subseries

Legend Data significance : High digits on the left and low digits on the right

Active low representations : xxx (line over the pin and signal names)
Note : Description of note in the text
Caution : Information requiring particular attention
Remark : Additional explanatory material
Numeral representations : Binary ... xxxx or xxxxB

Decimal ... xxxx
Hexadecimal ... xxxxH

Related Documents The related documents indicated in this publication may include preliminary

versions. However, preliminary versions are not marked as such.

• Related documents for this subseries

Document name Document No.

English Japanese

µ

PD78078, 78078Y Subseries User’s Manual This manual U10641J

µ

PD78076, 78078 Data Sheet U10167E U10167J

µ

PD78P078 Data Sheet U10168E U10168J

µ

PD78076Y, 78078Y Data Sheet U10605E U10605J

µ

PD78P078Y Data Sheet U10606E U10606J
78K/0 Series User’s Manual—Instructions U12326E U12326J
78K/0 Series Instruction Table — U10903J
78K/0 Series Instruction Set — U10904J

µ

PD78078 Subseries Special Function Register Table — IEM-5607

µ

PD78078Y Subseries Special Function Register Table — IEM-5601
78K/0 Series Application Note Basics (III) U10182E U10182J

Caution The above documents are subject to change without prior notice. Be sure to use the latest

version when starting design.

9

• Development Tool Documents (User’s Manuals)

Document Name Document No.

English Japanese

RA78K Series Assembler Package Operation EEU-1399 EEU-809

Language EEU-1404 EEU-815
RA78K Series Structured Assembler Preprocessor EEU-1402 U12323J
RA78K0 Assembler Package Operation U11802E U11802J

Language U11801E U11801J

Structured Assembly U11789E U11789J

Language
CC78K Series C Compiler Operation EEU-1280 EEU-656

Language EEU-1284 EEU-655
CC78K0 C Compiler Operation U11517E U11517J

Language U11518E U11518J
CC78K0 C Compiler Application Note

CC78K Series Library Source File — U12322J
PG-1500 PROM Programmer EEU-1335 U11940J
PG-1500 Controller PC-9800 Series (MS-DOSTM)-Based EEU-1291 EEU-704
PG-1500 Controller IBM PC Series (PC DOSTM)-Based U10540E EEU-5008
IE-78K0-NS
IE-78001-R-A
IE-78K0-R-EX1
IE-78078-NS-EM1

Programming Know-how

EEA-1208 U13034J

To be prepared To be prepared
To be prepared To be prepared
To be prepared To be prepared
To be prepared To be prepared

IE-78078-R-EM U10775E U10775J
EP-78064 EEU-1469 EEU-934
SM78K0 System Simulator WindowsTM-Based Reference U10181E U10181J
SM78K Series System Simulator External Part User Open Interface Specifications U10092E U10092J

ID78K0-NS Integrated Debugger Reference
ID78K0 Integrated Debugger EWS Based Reference — U11151J
ID78K0 Integrated Debugger PC Based Reference U11539E U11539J
ID78K0 Integrated Debugger Windows Based Guides U11649E U11649J

To be prepared

U12900J

Caution The above documents are subject to change without prior notice. Be sure to use the latest

version when starting design.

10

• Documents for Embedded Software (User’s Manuals)

Document Name Document No.

English Japanese

78K/0 Series Real-time OS Basics U11537E U11537J

Installation U11536E U11536J

78K/0 Series OS MX78K0 Basics U12257E U12257J

• Other Documents

Document Name Document No.

English Japanese
IC Package Manual C10943X
Semiconductor Device Mounting Technology Manual C10535E C10535J
Quality Grades on NEC Semiconductor Devices C11531E C11531J
NEC Semiconductor Device Reliability/Quality Control System U10983E U10983J
Guide to Prevent Damage for Semiconductor Devices by Electrostatic Discharge (ESD) C11892E C11892J

Guide to Quality Assurance for Semiconductor Devices MEI-1202 —
Microcomputer Product Series Guide — U11416J

Caution The above documents are subject to change without prior notice. Be sure to use the latest

version when starting design.

11

[MEMO]

12

TABLE OF CONTENTS

CHAPTER 1 OUTLINE (µPD78078 SUBSERIES)................................................................................. 33

1.1 Features .................................................................................................................................. 33

1.2 Application Fields.................................................................................................................. 34

1.3 Ordering Information............................................................................................................. 3 4

1.4 Quality Grade ......................................................................................................................... 3 5

1.5 Pin Configuration (Top View)............................................................................................... 36

1.6 78K/0 Series Expansion........................................................................................................ 42

1.7 Block Diagram........................................................................................................................ 44

1.8 Outline of Function ................................................................................................................ 45

1.9 Mask Options .......................................................................................................................... 47

1.10 Differences with µPD78054 Subseries ................................................................................ 47

CHAPTER 2 OUTLINE (µPD78078Y SUBSERIES) .............................................................................. 49

2.1 Features .................................................................................................................................. 49

2.2 Application Fields.................................................................................................................. 50

2.3 Ordering Information............................................................................................................. 5 0

2.4 Quality Grade ......................................................................................................................... 5 1

2.5 Pin Configuration (Top View)............................................................................................... 52

2.6 78K/0 Series Expansion........................................................................................................ 58

2.7 Block Diagram........................................................................................................................ 60

2.8 Outline of Function ................................................................................................................ 61

2.9 Mask Options .......................................................................................................................... 63

2.10 Differences with µPD78054Y Subseries ............................................................................. 63

CHAPTER 3 PIN FUNCTION (µPD78078 SUBSERIES) ....................................................................... 65

3.1 Pin Function List .................................................................................................................... 65

3.1.1 Normal operating mode pins ...................................................................................................... 65

3.1.2 PROM programming mode pins (µPD78P078 only) ................................................................. 69

3.2 Description of Pin Functions ............................................................................................... 70

3.2.1 P00 to P07 (Port 0) .....................................................................................................................70

3.2.2 P10 to P17 (Port 1) .....................................................................................................................70

3.2.3 P20 to P27 (Port 2) .....................................................................................................................71

3.2.4 P30 to P37 (Port 3) .....................................................................................................................72

3.2.5 P40 to P47 (Port 4) .....................................................................................................................72

3.2.6 P50 to P57 (Port 5) .....................................................................................................................73

3.2.7 P60 to P67 (Port 6) .....................................................................................................................73

3.2.8 P70 to P72 (Port 7) .....................................................................................................................74

3.2.9 P80 to P87 (Port 8) .....................................................................................................................74

3.2.10 P90 to P96 (Port 9) ..................................................................................................................... 75

3.2.11 P100 to P103 (Port 10) ............................................................................................................... 75

3.2.12 P120 to P127 (Port 12) ............................................................................................................... 75

3.2.13 P130 and P131 (Port 13) ............................................................................................................ 76

3.2.14 AV

3.2.15 AV

3.2.16 AVDD ............................................................................................................................................. 76

REF0 .......................................................................................................................................... 76

REF1 .......................................................................................................................................... 76

13

3.2.17 AVSS ............................................................................................................................................. 76

3.2.18 RESET ......................................................................................................................................... 76

3.2.19 X1 and X2 .................................................................................................................................... 76

3.2.20 XT1 and XT2 ............................................................................................................................... 76

3.2.21 V

3.2.22 V

DD ............................................................................................................................................... 77

SS ................................................................................................................................................ 77

3.2.23 VPP (µPD78P078 only) ................................................................................................................ 77

3.2.24 IC (Mask ROM version only) ...................................................................................................... 77

3.3 Input/output Circuits and Recommended Connection of Unused Pins ........................ 78

CHAPTER 4 PIN FUNCTION (µPD78078Y SUBSERIES) ................................................................... 83

4.1 Pin Function List .................................................................................................................... 83

4.1.1 Normal operating mode pins ...................................................................................................... 83

4.1.2 PROM programming mode pins (µPD78P078Y only) ............................................................... 87

4.2 Description of Pin Functions ............................................................................................... 88

4.2.1 P00 to P07 (Port 0) .....................................................................................................................88

4.2.2 P10 to P17 (Port 1) .....................................................................................................................88

4.2.3 P20 to P27 (Port 2) .....................................................................................................................89

4.2.4 P30 to P37 (Port 3) .....................................................................................................................90

4.2.5 P40 to P47 (Port 4) .....................................................................................................................90

4.2.6 P50 to P57 (Port 5) .....................................................................................................................91

4.2.7 P60 to P67 (Port 6) .....................................................................................................................91

4.2.8 P70 to P72 (Port 7) .....................................................................................................................92

4.2.9 P80 to P87 (Port 8) .....................................................................................................................92

4.2.10 P90 to P96 (Port 9) ..................................................................................................................... 93

4.2.11 P100 to P103 (Port 10) ............................................................................................................... 93

4.2.12 P120 to P127 (Port 12) ............................................................................................................... 93

4.2.13 P130 and P131 (Port 13) ............................................................................................................ 94

4.2.14 AV

4.2.15 AV

REF0 .......................................................................................................................................... 94

REF1 .......................................................................................................................................... 94

4.2.16 AVDD ............................................................................................................................................. 94

4.2.17 AVSS ............................................................................................................................................. 94

4.2.18 RESET ......................................................................................................................................... 94

4.2.19 X1 and X2 .................................................................................................................................... 94

4.2.20 XT1 and XT2 ............................................................................................................................... 94

4.2.21 V

DD ............................................................................................................................................... 95

4.2.22 VSS ................................................................................................................................................ 95

4.2.23 VPP (µPD78P078Y only) .............................................................................................................. 95

4.2.24 IC (Mask ROM version only) ...................................................................................................... 95

4.3 Input/output Circuits and Recommended Connection of Unused Pins ........................ 96

CHAPTER 5 CPU ARCHITECTURE.................................................................................................... 101

5.1 Memory Spaces.................................................................................................................... 101

5.1.1 Internal program memory space .............................................................................................. 104

5.1.2 Internal data memory space ..................................................................................................... 106

5.1.3 Special function register (SFR) area........................................................................................ 10 6

5.1.4 External memory space ............................................................................................................ 10 6

5.1.5 Data memory addressing.......................................................................................................... 10 7

14

5.2 Processor Registers............................................................................................................ 11 0

5.2.1 Control registers ........................................................................................................................ 110

5.2.2 General registers....................................................................................................................... 11 3

5.2.3 Special function register (SFR) ................................................................................................ 114

5.3 Instruction Address Addressing ....................................................................................... 118

5.3.1 Relative addressing................................................................................................................... 118

5.3.2 Immediate addressing............................................................................................................... 1 19

5.3.3 Table indirect addressing..........................................................................................................120

5.3.4 Register addressing .................................................................................................................. 121

5.4 Operand Address Addressing ........................................................................................... 122

5.4.1 Implied addressing .................................................................................................................... 122

5.4.2 Register addressing .................................................................................................................. 123

5.4.3 Direct addressing ...................................................................................................................... 124

5.4.4 Short direct addressing ............................................................................................................. 125

5.4.5 Special function register (SFR) addressing .............................................................................126

5.4.6 Register indirect addressing .....................................................................................................127

5.4.7 Based addressing......................................................................................................................128

5.4.8 Based indexed addressing .......................................................................................................129

5.4.9 Stack addressing....................................................................................................................... 1 29

CHAPTER 6 PORT FUNCTIONS......................................................................................................... 131

6.1 Port Functions ...................................................................................................................... 131

6.2 Port Configuration ............................................................................................................... 136

6.2.1 Port 0 ......................................................................................................................................... 136

6.2.2 Port 1 ......................................................................................................................................... 138

6.2.3 Port 2 (µPD78078 Subseries) ................................................................................................... 139

µ

6.2.4 Port 2 (

6.2.5 Port 3 ......................................................................................................................................... 143

6.2.6 Port 4 ......................................................................................................................................... 144

6.2.7 Port 5 ......................................................................................................................................... 145

6.2.8 Port 6 ......................................................................................................................................... 146

6.2.9 Port 7 ......................................................................................................................................... 148

6.2.10 Port 8 ......................................................................................................................................... 150

6.2.11 Port 9 ......................................................................................................................................... 151

6.2.12 Port 10 .......................................................................................................................................153

6.2.13 Port 12 .......................................................................................................................................155

6.2.14 Port 13 .......................................................................................................................................156

PD78078Y Subseries) ................................................................................................ 141

6.3 Port Function Control Registers ....................................................................................... 157

6.4 Port Function Operations ................................................................................................... 163

6.4.1 Writing to input/output port ....................................................................................................... 163

6.4.2 Reading from input/output port................................................................................................. 1 63

6.4.3 Operations on input/output port................................................................................................ 16 3

6.5 Selection of Mask Option ................................................................................................... 1 64

15

CHAPTER 7 CLOCK GENERATOR .................................................................................................... 165

7.1 Clock Generator Functions ................................................................................................ 16 5

7.2 Clock Generator Configuration .......................................................................................... 166

7.3 Clock Generator Control Register ..................................................................................... 167

7.4 System Clock Oscillator ..................................................................................................... 1 71

7.4.1 Main system clock oscillator ..................................................................................................... 171

7.4.2 Subsystem clock oscillator........................................................................................................172

7.4.3 Divider........................................................................................................................................ 1 74

7.4.4 When no subsystem clocks are used ...................................................................................... 174

7.5 Clock Generator Operations .............................................................................................. 175

7.5.1 Main system clock operations .................................................................................................. 176

7.5.2 Subsystem clock operations ..................................................................................................... 177

7.6 Changing System Clock and CPU Clock Settings .......................................................... 178

7.6.1 Time required for switchover between system clock and CPU clock ..................................... 178

7.6.2 System clock and CPU clock switching procedure ................................................................. 17 9

CHAPTER 8 16-BIT TIMER/EVENT COUNTER.................................................................................. 181

8.1 Outline of Timers Incorporated into µPD78078, 78078Y Subseries............................. 181

8.2 16-Bit Timer/Event Counter Functions ............................................................................. 183

8.3 16-Bit Timer/Event Counter Configuration ...................................................................... 185

8.4 16-Bit Timer/Event Counter Control Registers ............................................................... 19 0

8.5 16-Bit Timer/Event Counter Operations ........................................................................... 1 98

8.5.1 Interval timer operations ........................................................................................................... 1 98

8.5.2 PWM output operations ............................................................................................................ 200

8.5.3 PPG output operations..............................................................................................................203

8.5.4 Pulse width measurement operations ...................................................................................... 204

8.5.5 External event counter operation ............................................................................................. 211

8.5.6 Square-wave output operation .................................................................................................213

8.5.7 One-shot pulse output operation .............................................................................................. 215

8.6 16-Bit Timer/Event Counter Operating Precautions....................................................... 219

CHAPTER 9 8-BIT TIMER/EVENT COUNTERS 1 AND 2................................................................... 223

9.1 8-Bit Timer/Event Counters 1 and 2 Functions............................................................... 2 23

9.1.1 8-bit timer/event counter mode.................................................................................................223

9.1.2 16-bit timer/event counter mode ............................................................................................... 226

9.2 8-Bit Timer/Event Counters 1 and 2 Configurations ...................................................... 22 8

9.3 8-Bit Timer/Event Counters 1 and 2 Control Registers ................................................. 231

9.4 8-Bit Timer/Event Counters 1 and 2 Operations............................................................. 236

9.4.1 8-bit timer/event counter mode.................................................................................................236

9.4.2 16-bit timer/event counter mode ............................................................................................... 242

9.5 8-Bit Timer/Event Counters 1 and 2 Precautions ........................................................... 246

16

CHAPTER 10 8-BIT TIMER/EVENT COUNTERS 5 AND 6................................................................. 249

10.1 8-Bit Timer/Event Counters 5 and 6 Functions............................................................... 2 49

10.2 8-Bit Timer/Event Counters 5 and 6 Configurations ...................................................... 25 2

10.3 8-Bit Timer/Event Counters 5 and 6 Control Registers ................................................. 254

10.4 8-Bit Timer/Event Counters 5 and 6 Operations............................................................. 259

10.4.1 Interval timer operations ........................................................................................................... 259

10.4.2 External event counter operation ............................................................................................. 261

10.4.3 Square-wave output .................................................................................................................. 262

10.4.4 PWM output operations ............................................................................................................ 2 64

10.5 8-Bit Timer/Event Counters 5 and 6 Precautions ........................................................... 267

CHAPTER 11 WATCH TIMER ............................................................................................................. 269

11.1 Watch Timer Functions....................................................................................................... 269

11.2 Watch Timer Configuration ................................................................................................ 270

11.3 Watch Timer Control Registers ......................................................................................... 27 1

11.4 Watch Timer Operations..................................................................................................... 274

11.4.1 Watch timer operation ............................................................................................................... 274

11.4.2 Interval timer operation ............................................................................................................. 274

CHAPTER 12 WATCHDOG TIMER ..................................................................................................... 275

12.1 Watchdog Timer Functions ................................................................................................ 275

12.2 Watchdog Timer Configuration ......................................................................................... 277

12.3 Watchdog Timer Control Registers .................................................................................. 278

12.4 Watchdog Timer Operations .............................................................................................. 281

12.4.1 Watchdog timer operation......................................................................................................... 281

12.4.2 Interval timer operation ............................................................................................................. 282

CHAPTER 13 CLOCK OUTPUT CONTROL CIRCUIT........................................................................ 283

13.1 Clock Output Control Circuit Functions .......................................................................... 283

13.2 Clock Output Control Circuit Configuration.................................................................... 2 84

13.3 Clock Output Function Control Registers ....................................................................... 285

CHAPTER 14 BUZZER OUTPUT CONTROL CIRCUIT ...................................................................... 289

14.1 Buzzer Output Control Circuit Functions ........................................................................ 289

14.2 Buzzer Output Control Circuit Configuration.................................................................. 289

14.3 Buzzer Output Function Control Registers ..................................................................... 290

CHAPTER 15 A/D CONVERTER ......................................................................................................... 293

15.1 A/D Converter Functions .................................................................................................... 293

15.2 A/D Converter Configuration ............................................................................................. 293

15.3 A/D Converter Control Registers ...................................................................................... 296

15.4 A/D Converter Operations .................................................................................................. 30 0

15.4.1 Basic operations of A/D converter............................................................................................ 300

15.4.2 Input voltage and conversion results ....................................................................................... 30 2

15.4.3 A/D converter operating mode.................................................................................................. 303

15.5 A/D Converter Cautions...................................................................................................... 305

17

CHAPTER 16 D/A CONVERTER ......................................................................................................... 309

16.1 D/A Converter Functions .................................................................................................... 309

16.2 D/A Converter Configuration ............................................................................................. 310

16.3 D/A Converter Control Registers ...................................................................................... 312

16.4 D/A Converter Operations .................................................................................................. 31 3

16.5 D/A Converter Cautions...................................................................................................... 314

CHAPTER 17 SERIAL INTERFACE CHANNEL 0 (µPD78078 SUBSERIES) .................................... 315

17.1 Serial Interface Channel 0 Functions ............................................................................... 316

17.2 Serial Interface Channel 0 Configuration......................................................................... 318

17.3 Serial Interface Channel 0 Control Registers.................................................................. 321

17.4 Serial Interface Channel 0 Operations ............................................................................. 328

17.4.1 Operation stop mode................................................................................................................. 328

17.4.2 3-wire serial I/O mode operation .............................................................................................. 329

17.4.3 SBI mode operation .................................................................................................................. 333

17.4.4 2-wire serial I/O mode operation .............................................................................................. 357

17.4.5 SCK0/P27 pin output manipulation .......................................................................................... 363

CHAPTER 18 SERIAL INTERFACE CHANNEL 0 (µPD78078Y Subseries) ..................................... 365

18.1 Serial Interface Channel 0 Functions ............................................................................... 366

18.2 Serial Interface Channel 0 Configuration......................................................................... 368

18.3 Serial Interface Channel 0 Control Registers.................................................................. 372

18.4 Serial Interface Channel 0 Operations ............................................................................. 380

18.4.1 Operation stop mode................................................................................................................. 380

18.4.2 3-wire serial I/O mode operation .............................................................................................. 381

18.4.3 2-wire serial I/O mode operation .............................................................................................. 385

2

18.4.4 I

18.4.5 Cautions on use of I2C bus mode ............................................................................................ 408

18.4.6 Restrictions in I2C bus mode .................................................................................................... 4 11

18.4.7 SCK0/SCL/P27 pin output manipulation .................................................................................. 413

C bus mode operation ............................................................................................................ 3 90

CHAPTER 19 SERIAL INTERFACE CHANNEL 1 .............................................................................. 415

19.1 Serial Interface Channel 1 Functions ............................................................................... 415

19.2 Serial Interface Channel 1 Configuration......................................................................... 416

19.3 Serial Interface Channel 1 Control Registers.................................................................. 418

19.4 Serial Interface Channel 1 Operations ............................................................................. 425

19.4.1 Operation stop mode................................................................................................................. 425

19.4.2 3-wire serial I/O mode operation .............................................................................................. 426

19.4.3 3-wire serial I/O mode operation with automatic transmit/receive function ........................... 429

CHAPTER 20 SERIAL INTERFACE CHANNEL 2 .............................................................................. 457

20.1 Serial Interface Channel 2 Functions ............................................................................... 457

20.2 Serial Interface Channel 2 Configuration......................................................................... 458

20.3 Serial Interface Channel 2 Control Registers.................................................................. 461

20.4 Serial Interface Channel 2 Operation ............................................................................... 469

20.4.1 Operation stop mode................................................................................................................. 469

20.4.2 Asynchronous serial interface (UART) mode .......................................................................... 471

20.4.3 3-wire serial I/O mode............................................................................................................... 4 84

20.4.4 Restrictions on using UART mode ........................................................................................... 4 91

18

CHAPTER 21 REAL-TIME OUTPUT PORT ........................................................................................ 495

21.1 Real-Time Output Port Functions ..................................................................................... 495

21.2 Real-Time Output Port Configuration............................................................................... 495

21.3 Real-Time Output Port Control Registers........................................................................ 497

CHAPTER 22 INTERRUPT FUNCTIONS ............................................................................................ 499

22.1 Interrupt Function Types .................................................................................................... 499

22.2 Interrupt Sources and Configuration................................................................................ 500

22.3 Interrupt Function Control Registers ............................................................................... 504

22.4 Interrupt Servicing Operations .......................................................................................... 513

22.4.1 Non-maskable interrupt request acknowledge operation ........................................................ 513

22.4.2 Maskable interrupt request acknowledge operation ................................................................ 516

22.4.3 Software interrupt request acknowledge operation ................................................................. 51 8

22.4.4 Multiple interrupt servicing ........................................................................................................519

22.4.5 Interrupt request reserve .......................................................................................................... 5 22

22.5 Test Functions ..................................................................................................................... 523

22.5.1 Registers controlling the test function ...................................................................................... 523

22.5.2 Test input signal acknowledge operation................................................................................. 5 25

CHAPTER 23 EXTERNAL DEVICE EXPANSION FUNCTION ........................................................... 527

23.1 External Device Expansion Functions ............................................................................. 527

23.2 External Device Expansion Function Control Register ................................................. 5 31

23.3 External Device Expansion Function Timing .................................................................. 534

23.3.1 Timings in multiplexed bus mode............................................................................................ 534

23.3.2 Timings in separate bus mode ................................................................................................ 53 9

CHAPTER 24 STANDBY FUNCTION.................................................................................................. 545

24.1 Standby Function and Configuration ............................................................................... 545

24.1.1 Standby function........................................................................................................................ 5 45

24.1.2 Standby function control register.............................................................................................. 546

24.2 Standby Function Operations............................................................................................ 5 47

24.2.1 HALT mode................................................................................................................................ 547

24.2.2 STOP mode ............................................................................................................................... 550

CHAPTER 25 RESET FUNCTION ....................................................................................................... 553

25.1 Reset Function ..................................................................................................................... 553

CHAPTER 26 ROM CORRECTION ..................................................................................................... 559

26.1 ROM Correction Functions ................................................................................................. 559

26.2 ROM Correction Configuration .......................................................................................... 559

26.3 ROM Correction Control Registers ................................................................................... 561

26.4 ROM Correction Application .............................................................................................. 562

26.5 ROM Correction Example ................................................................................................... 565

26.6 Program Execution Flow .................................................................................................... 566

26.7 Cautions on ROM Correction............................................................................................. 568

19

CHAPTER 27 µPD78P078, 78P078Y .................................................................................................. 569

27.1 Internal Memory Size Switching Register........................................................................ 570

27.2 Internal Extension RAM Size Switching Register........................................................... 571

27.3 PROM Programming............................................................................................................ 572

27.3.1 Operating modes .......................................................................................................................572

27.3.2 PROM write procedure.............................................................................................................. 574

27.3.3 PROM reading procedure ......................................................................................................... 578

27.4 Erasure Procedure (µPD78P078KL-T and 78P078YKL-T Only)..................................... 579

27.5 Opaque Film Masking Window (µPD78P078KL-T and 78P078YKL-T Only) ................ 579

27.6 Screening of One-Time PROM Versions .......................................................................... 579

CHAPTER 28 INSTRUCTION SET ...................................................................................................... 581

28.1 Legends Used in Operation List ........................................................................................ 582

28.1.1 Operand identifiers and description methods .......................................................................... 5 82

28.1.2 Description of “operation” column ............................................................................................583

28.1.3 Description of “flag operation” column ..................................................................................... 583

28.2 Operation List....................................................................................................................... 584

28.3 Instructions Listed by Addressing Type.......................................................................... 59 2

APPENDIX A DIFFERENCES BETWEEN µPD78078, 78075B SUBSERIES, AND µPD78070A...... 597

APPENDIX B DEVELOPMENT TOOLS .............................................................................................. 599

B.1 Language Processing Software ......................................................................................... 602

B.2 PROM Writing Tools............................................................................................................ 604

B.2.1 Hardware ................................................................................................................................... 6 04

B.2.2 Software.....................................................................................................................................604

B.3 Debugging Tools .................................................................................................................. 605

B.3.1 Hardware ................................................................................................................................... 6 05

B.3.2 Software.....................................................................................................................................607

B.4 OS for IBM PC ...................................................................................................................... 60 9

B.5 System Upgrading from Former-type In-circuit Emulator for 78K/0 Series

to IE-78001-R-A .................................................................................................................... 609

APPENDIX C EMBEDDED SOFTWARE ............................................................................................ 613

APPENDIX D REGISTER INDEX......................................................................................................... 615

D.1 Register Name Index ........................................................................................................... 615

D.2 Register Symbol Index........................................................................................................ 619

APPENDIX E REVISION HISTORY ..................................................................................................... 623

20

LIST OF FIGURES (1/9)

Figure No. Title Page

3-1 List of Pin Input/Output Circuits ................................................................................................... 80

4-1 List of Pin Input/Output Circuits ................................................................................................... 98

µ

5-1 Memory Map (
5-2 Memory Map (

5-3 Memory Map (µPD78P078, µPD78P078Y) ............................................................................... 10 3

5-4 Data Memory Addressing (µPD78076, 78076Y)....................................................................... 107

5-5 Data Memory Addressing (

5-6 Data Memory Addressing (µPD78P078, 78P078Y).................................................................. 109

5-7 Program Counter Configuration ................................................................................................. 110

5-8 Program Status Word Configuration .......................................................................................... 110

5-9 Stack Pointer Configuration ....................................................................................................... 112

5-10 Data to be Saved to Stack Memory ........................................................................................... 11 2

5-11 Data to be Reset from Stack Memory ....................................................................................... 1 12

5-12 General Register Configuration .................................................................................................. 113

PD78076, 78076Y) ........................................................................................... 101

µ

PD78078, 78078Y) ........................................................................................... 102

µ

PD78078, 78078Y)....................................................................... 108

6-1 Port Types ................................................................................................................................... 13 1

6-2 Block Diagram of P00 and P07.................................................................................................. 137

6-3 Block Diagram of P01 to P06..................................................................................................... 137

6-4 Block Diagram of P10 to P17..................................................................................................... 138

6-5 Block Diagram of P20, P21, P23 to P26 ................................................................................... 139

6-6 Block Diagram of P22 and P27.................................................................................................. 140

6-7 Block Diagram of P20, P21, P23 to P26 ................................................................................... 141

6-8 Block Diagram of P22 and P27.................................................................................................. 142

6-9 Block Diagram of P30 to P37..................................................................................................... 143

6-10 Block Diagram of P40 to P47 ..................................................................................................... 14 4

6-11 Block Diagram of Falling Edge Detection Circuit...................................................................... 144

6-12 Block Diagram of P50 to P57 ..................................................................................................... 14 5

6-13 Block Diagram of P60 to P63 ..................................................................................................... 14 7

6-14 Block Diagram of P64 to P67 ..................................................................................................... 14 7

6-15 Block Diagram of P70 ................................................................................................................. 1 48

6-16 Block Diagram of P71 and P72 .................................................................................................. 149

6-17 Block Diagram of P80 to P87 ..................................................................................................... 15 0

6-18 Block Diagram of P90 to P93 ..................................................................................................... 15 2

6-19 Block Diagram of P94 to P96 ..................................................................................................... 15 2

6-20 Block Diagram of P100 and P101 ............................................................................................. 153

6-21 Block Diagram of P102 and P103 ............................................................................................. 154

6-22 Block Diagram of P120 to P127 ................................................................................................. 155

6-23 Block Diagram of P130 and P131 ............................................................................................. 156

6-24 Port Mode Register Format........................................................................................................ 159

6-25 Pull-Up Resistor Option Register Format.................................................................................. 160

6-26 Memory Expansion Mode Register Format............................................................................... 161

6-27 Key Return Mode Register Format............................................................................................ 162

21

LIST OF FIGURES (2/9)

Figure No. Title Page

7-1 Block Diagram of Clock Generator ............................................................................................ 166

7-2 Subsystem Clock Feedback Resistor ........................................................................................ 167

7-3 Processor Clock Control Register Format................................................................................. 168

7-4 Oscillation Mode Selection Register Format ............................................................................. 170

7-5 Main System Clock Waveform due to Writing to OSMS .......................................................... 17 0

7-6 External Circuit of Main System Clock Oscillator ..................................................................... 171

7-7 External Circuit of Subsystem Clock Oscillator......................................................................... 172

7-8 Examples of Oscillator with Bad Connection ............................................................................ 17 2

7-9 Main System Clock Stop Function............................................................................................. 176

7-10 System Clock and CPU Clock Switching .................................................................................. 179

8-1 16-Bit Timer/Event Counter Block Diagram .............................................................................. 1 86

8-2 16-Bit Timer/Event Counter Output Control Circuit Block Diagram ......................................... 187

8-3 Timer Clock Selection Register 0 Format ................................................................................. 191

8-4 16-Bit Timer Mode Control Register Format ............................................................................. 192

8-5 Capture/Compare Control Register 0 Format ........................................................................... 19 3

8-6 16-Bit Timer Output Control Register Format ........................................................................... 194

8-7 Port Mode Register 3 Format..................................................................................................... 195

8-8 External Interrupt Mode Register 0 Format............................................................................... 196

8-9 Sampling Clock Select Register Format.................................................................................... 197

8-10 Control Register Settings for Interval Timer Operation ............................................................ 198

8-11 Interval Timer Configuration Diagram ........................................................................................ 1 99

8-12 Interval Timer Operation Timings .............................................................................................. 199

8-13 Control Register Settings for PWM Output Operation.............................................................. 201

8-14 Example of D/A Converter Configuration with PWM Output.................................................... 202

8-15 TV Tuner Application Circuit Example ....................................................................................... 202

8-16 Control Register Settings for PPG Output Operation ............................................................... 20 3

8-17 Control Register Settings for Pulse Width Measurement with Free-Running Counter

and One Capture Register ......................................................................................................... 204

8-18 Configuration Diagram for Pulse Width Measurement by Free-Running Counter .................. 205

8-19 Timing of Pulse Width Measurement Operation by Free-Running Counter and

One Capture Register (with Both Edges Specified) ................................................................. 205

8-20 Control Register Settings for Two Pulse Width Measurements with

Free-Running Counter ................................................................................................................ 206

8-21 Timing of Pulse Width Measurement Operation with Free-Running Counter

(with Both Edges Specified) ....................................................................................................... 207

8-22 Control Register Settings for Pulse Width Measurement with Free-Running Counter and

Two Capture Registers............................................................................................................... 208

8-23 Timing of Pulse Width Measurement Operation by Free-Running Counter and

Two Capture Registers (with Rising Edge Specified)............................................................... 209

8-24 Control Register Settings for Pulse Width Measurement by Means of Restart ...................... 2 10

8-25 Timing of Pulse Width Measurement Operation by Means of Restart

(with Rising Edge Specified) ...................................................................................................... 2 10

22

LIST OF FIGURES (3/9)

Figure No. Title Page

8-26 Control Register Settings in External Event Counter Mode ..................................................... 21 1

8-27 External Event Counter Configuration Diagram........................................................................ 212

8-28 External Event Counter Operation Timings (with Rising Edge Specified) ............................... 2 12

8-29 Control Register Settings in Square-Wave Output Mode......................................................... 213

8-30 Square-Wave Output Operation Timing .................................................................................... 214

8-31 Control Register Settings for One-Shot Pulse Output Operation Using Software Trigger ..... 215

8-32 Timing of One-Shot Pulse Output Operation Using Software Trigger..................................... 216

8-33 Control Register Settings for One-Shot Pulse Output Operation Using External Trigger ...... 217

8-34 Timing of One-Shot Pulse Output Operation Using External Trigger

(With Rising Edge Specified) ..................................................................................................... 218

8-35 16-Bit Timer Register Start Timing ............................................................................................ 219

8-36 Timings After Change of Compare Register During Timer Count Operation.......................... 219

8-37 Capture Register Data Retention Timing .................................................................................. 220

8-38 Operation Timing of OVF0 Flag................................................................................................. 221

9-1 8-Bit Timer/Event Counters 1 and 2 Block Diagram................................................................. 228

9-2 Block Diagram of 8-Bit Timer/Event Counter Output Control Circuit 1.................................... 229

9-3 Block Diagram of 8-Bit Timer/Event Counter Output Control Circuit 2.................................... 229

9-4 Timer Clock Select Register 1 Format ...................................................................................... 232

9-5 8-Bit Timer Mode Control Register 1 Format ............................................................................ 233

9-6 8-Bit Timer Output Control Register Format ............................................................................. 23 4

9-7 Port Mode Register 3 Format..................................................................................................... 235

9-8 Interval Timer Operation Timing ................................................................................................ 2 36

9-9 External Event Counter Operation Timings (with Rising Edge Specified)............................... 239

9-10 Timing of Square Wave Output Operation ................................................................................ 241

9-11 Interval Timer Operation Timing ................................................................................................ 242

9-12 External Event Counter Operation Timings (with Rising Edge Specified) ............................... 2 44

9-13 8-Bit Timer Registers 1 and 2 Start Timing ............................................................................... 246

9-14 External Event Counter Operation Timing ................................................................................. 246

9-15 Timing after Compare Register Change during Timer Count Operation ................................. 24 7

10-1 8-Bit Timer/Event Counters 5 and 6 Block Diagram ................................................................. 2 52

10-2 Block Diagram of 8-Bit Timer/Event Counters 5 and 6 Output Control Circuit ....................... 253

10-3 Timer Clock Select Register 5 Format ...................................................................................... 254

10-4 Timer Clock Select Register 6 Format ...................................................................................... 255

10-5 8-Bit Timer Output Control Register Format ............................................................................. 256

10-6 8-Bit Timer Output Control Register 6 Format .......................................................................... 257

10-7 Port Mode Register 10 Format ................................................................................................... 258

10-8 8-Bit Timer Mode Control Register Settings for Interval Timer Operation .............................. 259

10-9 Interval Timer Operation Timings .............................................................................................. 259

10-10 8-Bit Timer Mode Control Register Setting for External Event Counter Operation ................. 26 1

10-11 External Event Counter Operation Timings (with Rising Edge Specified)............................... 261

10-12 8-Bit Timer Mode Control Register Settings for Square-Wave Output Operation .................. 26 2

10-13 Timing of Square Wave Output Operation ................................................................................ 2 62

23

LIST OF FIGURES (4/9)

Figure No. Title Page

10-14 8-Bit Timer Control Register Settings for PWM Output Operation .......................................... 26 4

10-15 PWM Output Operation Timing (Active High Setting) ............................................................... 2 65

10-16 PWM Output Operation Timings (CRn0 = 00H, Active High Setting)...................................... 265

10-17 PWM Output Operation Timings (CRn0 = FFH, Active High Setting) ..................................... 266

10-18 PWM Output Operation Timings (CRn0 Changing, Active High Setting) ................................ 266

10-19 8-bit Timer Registers 5 and 6 Start Timings ............................................................................. 267

10-20 External Event Counter Operation Timings............................................................................... 267

10-21 Timings after Compare Register Change during Timer Count Operation ............................... 268

11-1 Watch Timer Block Diagram ...................................................................................................... 271

11-2 Timer Clock Select Register 2 Format ...................................................................................... 272

11-3 Watch Timer Mode Control Register Format ............................................................................ 273

12-1 Watchdog Timer Block Diagram ................................................................................................ 277

12-2 Timer Clock Select Register 2 Format ...................................................................................... 279

12-3 Watchdog Timer Mode Register Format ................................................................................... 280

13-1 Remote Controlled Output Application Example....................................................................... 2 83

13-2 Clock Output Control Circuit Block Diagram ............................................................................. 28 4

13-3 Timer Clock Select Register 0 Format ...................................................................................... 286

13-4 Port Mode Register 3 Format ..................................................................................................... 287

14-1 Buzzer Output Control Circuit Block Diagram........................................................................... 289

14-2 Timer Clock Select Register 2 Format ...................................................................................... 291

14-3 Port Mode Register 3 Format ..................................................................................................... 292

15-1 A/D Converter Block Diagram.................................................................................................... 294

15-2 A/D Converter Mode Register Format ....................................................................................... 297

15-3 A/D Converter Input Select Register Format ............................................................................ 298

15-4 External Interrupt Mode Register 1 Format............................................................................... 2 99

15-5 A/D Converter Basic Operation .................................................................................................. 30 1

15-6 Relationships between Analog Input Voltage and A/D Conversion Result ............................. 302

15-7 A/D Conversion by Hardware Start ............................................................................................ 303

15-8 A/D Conversion by Software Start............................................................................................. 304

15-9 Example of Method of Reducing Current Consumption in Standby Mode.............................. 305

15-10 Analog Input Pin Disposition ...................................................................................................... 3 06

15-11 A/D Conversion End Interrupt Request Generation Timing ..................................................... 307

15-12 Handling of AV

DD Pin .................................................................................................................. 30 7

16-1 D/A Converter Block Diagram.................................................................................................... 310

16-2 D/A Converter Mode Register Format ....................................................................................... 312

16-3 Use Example of Buffer Amplifier................................................................................................ 314

24

LIST OF FIGURES (5/9)

Figure No. Title Page

17-1 Serial Bus Interface (SBI) System Configuration Example ...................................................... 317

17-2 Serial Interface Channel 0 Block Diagram ................................................................................ 3 18

17-3 Timer Clock Select Register 3 Format ...................................................................................... 322

17-4 Serial Operating Mode Register 0 Format ................................................................................ 324

17-5 Serial Bus Interface Control Register Format ........................................................................... 3 25

17-6 Interrupt Timing Specify Register Format .................................................................................. 327

17-7 3-Wire Serial I/O Mode Timings ................................................................................................. 331

17-8 RELT and CMDT Operations ..................................................................................................... 331

17-9 Circuit of Switching in Transfer Bit Order.................................................................................. 3 32

17-10 Example of Serial Bus Configuration with SBI.......................................................................... 333

17-11 SBI Transfer Timings.................................................................................................................. 335

17-12 Bus Release Signal .................................................................................................................... 336

17-13 Command Signal ........................................................................................................................ 33 6

17-14 Addresses ................................................................................................................................... 33 7

17-15 Slave Selection with Address..................................................................................................... 337

17-16 Commands .................................................................................................................................. 338

17-17 Data ............................................................................................................................................. 338

17-18 Acknowledge Signal ................................................................................................................... 33 9

17-19 BUSY and READY Signals ........................................................................................................ 339

17-20 RELT, CMDT, RELD, and CMDD Operations (Master)............................................................ 344

17-21 RELD and CMDD Operations (Slave) ....................................................................................... 344

17-22 ACKT Operation.......................................................................................................................... 345

17-23 ACKE Operations........................................................................................................................ 3 46

17-24 ACKD Operations ....................................................................................................................... 347

17-25 BSYE Operation.......................................................................................................................... 347

17-26 Pin Configuration ........................................................................................................................ 350

17-27 Address Transmission from Master Device to Slave Device (WUP = 1) ................................ 3 52

17-28 Command Transmission from Master Device to Slave Device................................................ 353

17-29 Data Transmission from Master Device to Slave Device ......................................................... 3 54

17-30 Data Transmission from Slave Device to Master Device ......................................................... 3 55

17-31 Serial Bus Configuration Example Using 2-Wire Serial I/O Mode ........................................... 3 57

17-32 2-Wire Serial I/O Mode Timings ................................................................................................. 3 61

17-33 RELT and CMDT Operations ..................................................................................................... 3 61

17-34 SCK0/P27 Pin Configuration ...................................................................................................... 363

2

18-1 Serial Bus Configuration Example Using I

C Bus ..................................................................... 367

18-2 Serial Interface Channel 0 Block Diagram ................................................................................ 3 69

18-3 Timer Clock Select Register 3 Format ...................................................................................... 373

18-4 Serial Operating Mode Register 0 Format ................................................................................ 375

18-5 Serial Bus Interface Control Register Format ........................................................................... 3 76

18-6 Interrupt Timing Specify Register Format .................................................................................. 378

18-7 3-Wire Serial I/O Mode Timings ................................................................................................. 383

18-8 RELT and CMDT Operations ..................................................................................................... 383

18-9 Circuit of Switching in Transfer Bit Order.................................................................................. 3 84

25

LIST OF FIGURES (6/9)

Figure No. Title Page

18-10 Serial Bus Configuration Example Using 2-Wire Serial I/O Mode ........................................... 385

18-11 2-Wire Serial I/O Mode Timings................................................................................................. 3 88

18-12 RELT and CMDT Operations ..................................................................................................... 3 89

18-13 Example of Serial Bus Configuration Using I2C Bus ................................................................ 390

18-14 I2C Bus Serial Data Transfer Timing ......................................................................................... 3 91

18-15 Start Condition ............................................................................................................................ 392

18-16 Address ....................................................................................................................................... 392

18-17 Transfer Direction Specification ................................................................................................. 39 2

18-18 Acknowledge Signal ................................................................................................................... 39 3

18-19 Stop Condition ............................................................................................................................ 39 3

18-20 Wait Signal .................................................................................................................................. 39 4

18-21 Pin Configuration ........................................................................................................................ 399

18-22 Example of Communication from Master to Slave

(with 9-Clock Wait Selected for Both Master and Slave) ......................................................... 401

18-23 Example of Communication from Slave to Master

(with 9-Clock Wait Selected for Both Master and Slave) ......................................................... 404

18-24 Start Condition Output ................................................................................................................ 408

18-25 Slave Wait Release (Transmission)........................................................................................... 4 09

18-26 Slave Wait Release (Reception) ................................................................................................ 410

18-27 SCK0/SCL/P27 Pin Configuration.............................................................................................. 413

18-28 SCK0/SCL/P27 Pin Configuration.............................................................................................. 414

18-29 Logic Circuit of SCL Signal ........................................................................................................ 414

19-1 Serial Interface Channel 1 Block Diagram ................................................................................ 416

19-2 Timer Clock Select Register 3 Format ...................................................................................... 418

19-3 Serial Operation Mode Register 1 Format ................................................................................ 419

19-4 Automatic Data Transmit/Receive Control Register Format .................................................... 420

19-5 Automatic Data Transmit/Receive Interval Specify Register Format....................................... 421

19-6 3-Wire Serial I/O Mode Timings ................................................................................................. 42 7

19-7 Circuit of Switching in Transfer Bit Order.................................................................................. 4 28

19-8 Basic Transmission/Reception Mode Operation Timings......................................................... 436

19-9 Basic Transmission/Reception Mode Flowchart ....................................................................... 437

19-10 Buffer RAM Operation in 6-byte Transmission/Reception

(in Basic Transmit/Receive Mode)............................................................................................. 438

19-11 Basic Transmission Mode Operation Timings........................................................................... 440

19-12 Basic Transmission Mode Flowchart ......................................................................................... 44 1

19-13 Buffer RAM Operation in 6-byte Transmission (in Basic Transmit Mode) ............................... 4 42

19-14 Repeat Transmission Mode Operation Timing.......................................................................... 444

19-15 Repeat Transmission Mode Flowchart ...................................................................................... 445

19-16 Buffer RAM Operation in 6-byte Transmission (in Repeat Transmit mode)............................ 446

19-17 Automatic Transmission/Reception Suspension and Restart ................................................... 4 48

19-18 System Configuration when the Busy Control Option is Used................................................. 449

19-19 Operation Timings when Using Busy Control Option (BUSY0 = 0)......................................... 450

19-20 Busy Signal and Wait Cancel (BUSY0 = 0) .............................................................................. 451

26

LIST OF FIGURES (7/9)

Figure No. Title Page

19-21 Operation Timings when Using Busy & Strobe Control Option (BUSY0 = 0) ......................... 452

19-22 Operation Timing of the Bit Slippage Detection Function through the Busy Signal

(BUSY0 = 1)................................................................................................................................ 453

19-23 Automatic Data Transmit/Receive Interval ................................................................................ 4 54

19-24 Operation Timing with Automatic Data Transmit/Receive Function Performed

by Internal Clock ......................................................................................................................... 455

20-1 Serial Interface Channel 2 Block Diagram ................................................................................ 4 58

20-2 Baud Rate Generator Block Diagram ........................................................................................ 459

20-3 Serial Operating Mode Register 2 Format ................................................................................ 461

20-4 Asynchronous Serial Interface Mode Register Format............................................................. 462

20-5 Asynchronous Serial Interface Status Register Format ............................................................ 464

20-6 Baud Rate Generator Control Register Format ........................................................................ 465

20-7 Asynchronous Serial Interface Transmit/Receive Data Format ............................................... 478

20-8 Asynchronous Serial Interface Transmission Completion Interrupt Request Generation

Timing.......................................................................................................................................... 480

20-9 Asynchronous Serial Interface Reception Completion Interrupt Request Generation

Timing.......................................................................................................................................... 481

20-10 Receive Error Timing.................................................................................................................. 482

20-11 State of Receive Buffer Register (RXB) When Receive Operation is Stopped and

Whether Interrupt Request (INTSR) is Generated or Not ........................................................ 483

20-12 3-Wire Serial I/O Mode Timing .................................................................................................. 48 9

20-13 Circuit of Switching in Transfer Bit Order.................................................................................. 490

20-14 Receive Completion Interrupt Request Generation Timing (ISRM = 1) .................................. 491

20-15 Period that Reading Receive Buffer Register is Prohibited ..................................................... 492

21-1 Real-time Output Port Block Diagram ....................................................................................... 495

21-2 Real-time Output Buffer Register Configuration ....................................................................... 496

21-3 Port Mode Register 12 Format................................................................................................... 4 97

21-4 Real-time Output Port Mode Register Format .......................................................................... 497

21-5 Real-time Output Port Control Register Format ........................................................................ 498

22-1 Basic Configuration of Interrupt Function.................................................................................. 502

22-2 Interrupt Request Flag Register Format.................................................................................... 505

22-3 Interrupt Mask Flag Register Format......................................................................................... 506

22-4 Priority Specify Flag Register Format ........................................................................................ 5 07

22-5 External Interrupt Mode Register 0 Format ............................................................................... 5 08

22-6 External Interrupt Mode Register 1 Format ............................................................................... 5 09

22-7 Sampling Clock Select Register Format .................................................................................... 5 10

22-8 Noise Eliminator Input/Output Timing (during Rising Edge Detection) .................................... 511

22-9 Program Status Word Format .................................................................................................... 5 12

22-10 Flowchart from Non-Maskable Interrupt Generation to Acknowledge ..................................... 514

22-11 Non-Maskable Interrupt Request Acknowledge Timing............................................................ 514

22-12 Non-Maskable Interrupt Request Acknowledge Operation ....................................................... 515

27

LIST OF FIGURES (8/9)

Figure No. Title Page

22-13 Interrupt Request Acknowledge Processing Algorithm ............................................................. 5 17

22-14 Interrupt Request Acknowledge Timing (Minimum Time) ......................................................... 518

22-15 Interrupt Request Acknowledge Timing (Maximum Time) ........................................................ 518

22-16 Multiple Interrupt Example .......................................................................................................... 520

22-17 Interrupt Request Hold ............................................................................................................... 522

22-18 Basic Configuration of Test Function ......................................................................................... 523

22-19 Format of Interrupt Request Flag Register 1L .......................................................................... 524

22-20 Format of Interrupt Mask Flag Register 1L ............................................................................... 524

22-21 Key Return Mode Register Format ............................................................................................ 525

23-1 Memory Map when Using External Device Expansion Function ............................................. 529

23-2 Memory Expansion Mode Register Format............................................................................... 531

23-3 Internal Memory Size Switching Register Format ..................................................................... 5 32

23-4 External Bus Type Select Register Format............................................................................... 533

23-5 Instruction Fetch from External Memory in Multiplexed Bus Mode ......................................... 535

23-6 External Memory Read Timing in Multiplexed Bus Mode......................................................... 536

23-7 External Memory Write Timing in Multiplexed Bus Mode ......................................................... 5 37

23-8 External Memory Read Modify Write Timing in Multiplexed Bus Mode ................................... 538

23-9 Instruction Fetch from External Memory in Separate Bus Mode ............................................. 5 40

23-10 External Memory Read Timing in Separate Bus Mode ............................................................ 541

23-11 External Memory Write Timing in Separate Bus Mode ............................................................ 542

23-12 External Memory Read Modify Write Timing in Separate Bus Mode ...................................... 543

24-1 Oscillation Stabilization Time Select Register Format .............................................................. 546

24-2 HALT Mode Released by Interrupt Request Generation .......................................................... 5 48

24-3 HALT Mode Released by RESET Input .................................................................................... 549

24-4 STOP Mode Released by Interrupt Request Generation ......................................................... 55 1

24-5 STOP Mode Released by RESET Input .................................................................................... 5 52

25-1 Block Diagram of Reset Function .............................................................................................. 5 53

25-2 Timing of Reset by RESET Input ............................................................................................... 55 4

25-3 Timing of Reset due to Watchdog Timer Overflow................................................................... 554

25-4 Timing of Reset by RESET Input in STOP Mode..................................................................... 554

26-1 Block Diagram of ROM Correction ............................................................................................ 559

26-2 Correction Address Registers 0 and 1 Format ......................................................................... 560

26-3 Correction Control Register Format........................................................................................... 561

26-4 Storing Example to EEPROM (when One Place is Corrected)................................................ 562

26-5 Connecting Example with EEPROM (Using 2-Wire Serial I/O Mode) ..................................... 562

26-6 Initialization Routine ................................................................................................................... 563

26-7 ROM Correction Operation ......................................................................................................... 564

26-8 ROM Correction Example ........................................................................................................... 565

26-9 Program Transition Diagram (when One Place is Corrected) .................................................. 5 66

26-10 Program Transition Diagram (when Two Places are Corrected) ............................................. 567

28

LIST OF FIGURES (9/9)

Figure No. Title Page

27-1 Internal Memory Size Switching Register Format ..................................................................... 5 70

27-2 Internal Extension RAM Size Switching Register Format ........................................................ 571

27-3 Page Program Mode Flowchart ................................................................................................. 574

27-4 Page Program Mode Timing ...................................................................................................... 575

27-5 Byte Program Mode Flowchart ................................................................................................... 576

27-6 Byte Program Mode Timing ....................................................................................................... 577

27-7 PROM Read Timing .................................................................................................................... 57 8

B-1 Development Tool Configuration................................................................................................ 600

B-2 TGC-100SDW Drawing (For Reference Only) .......................................................................... 610

B-3 EV-9200GF-100 Drawing (For Reference Only) ....................................................................... 611

B-4 EV-9200GF-100 Recommended Footprints (For Reference Only) .......................................... 612

29

LIST OF TABLES (1/3)

Table No. Title Page

1-1 Mask Options of Mask ROM Versions......................................................................................... 47

1-2 Differences between µPD78078 Subseries and µPD78054 Subseries ..................................... 47

2-1 Mask Options of Mask ROM Versions......................................................................................... 63

2-2 Differences between µPD78078Y Subseries and µPD78054Y Subseries ................................ 63

3-1 Pin Input/Output Circuit Types ..................................................................................................... 78

4-1 Pin Input/Output Circuit Types ..................................................................................................... 96

5-1 Internal ROM Capacities ............................................................................................................ 10 4

5-2 Vector Table ................................................................................................................................ 105

5-3 Special Function Register List ................................................................................................... 115

6-1 Port Functions (µPD78078 Subseries) ...................................................................................... 1 32

6-2 Port Functions (µPD78078Y Subseries) .................................................................................... 13 4

6-3 Port Configuration ....................................................................................................................... 13 6

6-4 Pull-up Resistor Options for Port 6 ............................................................................................ 146

6-5 Pull-up Resistor Options for Port 9 ............................................................................................ 151

6-6 Port Mode Register and Output Latch Settings when Using Alternate Function .................... 158

6-7 Comparison between Mask ROM Version and the µPD78P078 and 78P078Y...................... 164

7-1 Clock Generator Configuration................................................................................................... 166

7-2 Relationship between CPU Clock and Minimum Instruction Execution Time ........................ 169

7-3 Maximum Time Required for CPU Clock Switchover ............................................................... 178

8-1 Timer/Event Counter Operations ............................................................................................... 18 2

8-2 16-Bit Timer/Event Counter Interval Times ............................................................................... 183

8-3 16-Bit Timer/Event Counter Square-Wave Output Ranges ...................................................... 184

8-4 16-Bit Timer/Event Counter Configuration ................................................................................ 185

8-5 INTP0/TI00 Pin Valid Edge and CR00 Capture Trigger Valid Edge........................................ 188

8-6 16-Bit Timer/Event Counter Interval Times ............................................................................... 200

8-7 16-Bit Timer/Event Count Square-Wave Output Ranges ......................................................... 214

9-1 8-Bit Timer/Event Counters 1 and 2 Interval Times ................................................................. 224

9-2 8-Bit Timer/Event Counters 1 and 2 Square-Wave Output Ranges ........................................ 225

9-3 Interval Times when 8-Bit Timer/Event Counters 1 and 2

are Used as 16-Bit Timer/Event Counters ................................................................................ 22 6

9-4 Square-Wave Output Ranges when 8-Bit Timer/Event Counters 1 and 2 are

Used as 16-Bit Timer/Event Counters ....................................................................................... 22 7

9-5 8-Bit Timer/Event Counters 1 and 2 Configurations ................................................................. 228

9-6 8-Bit Timer/Event Counter 1 Interval Time................................................................................ 237

9-7 8-Bit Timer/Event Counter 2 Interval Time................................................................................ 238

9-8 8-Bit Timer/Event Counters 1 and 2 Square-Wave Output Ranges ........................................ 240

30