NEC UPD789026 Series Manual de usuario

User’s Manual

µµ

µPD789022

µµ

µPD789024

µµ

µPD789025

µµ

µPD789026

µµ

µPD78F9026A

µµ

µPD789026 Subseries

8-Bit Single-Chip Microcontrollers

Printed in Japan

Document No. U11919EJ3V0UMJ1 (3rd edition)

Date Published October 2000 N CP(K)

1996, 1999

www.DataSheet4U.com

User's Manual U11919EJ3V0UM00

[MEMO]

www.DataSheet4U.com

User's Manual U11919EJ3V0UM00 3

SUMMARY OF CONTENTS

CHAPTER 1 GENERAL....................................................................................................................................23

CHAPTER 2 PIN FUNCTIONS..........................................................................................................................33

CHAPTER 3 CPU ARCHITECTURE.................................................................................................................41

CHAPTER 4 PORT FUNCTIONS......................................................................................................................69

CHAPTER 5 CLOCK GENERATION CIRCUIT ................................................................................................85

CHAPTER 6 16-BIT TIMER ..............................................................................................................................93

CHAPTER 7 8-BIT TIMER/EVENT COUNTER...............................................................................................105

CHAPTER 8 WATCHDOG TIMER..................................................................................................................115

CHAPTER 9 SERIAL INTERFACE 00............................................................................................................121

CHAPTER 10 INTERRUPT FUNCTIONS.........................................................................................................149

CHAPTER 11 STANDBY FUNCTION...............................................................................................................167

CHAPTER 12 RESET FUNCTION....................................................................................................................175

CHAPTER 13

µµ

PD78F9026A............................................................................................................................179

CHAPTER 14 INSTRUCTION SET...................................................................................................................185

APPENDIX A DEVELOPMENT TOOLS...........................................................................................................195

APPENDIX B EMBEDDED SOFTWARE..........................................................................................................205

APPENDIX C REGISTER INDEX.....................................................................................................................207

APPENDIX D REVISION HISTORY .................................................................................................................211

www.DataSheet4U.com

User's Manual U11919EJ3V0UM00

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

ultimatelydegradethedeviceoperation. Stepsmustbetakentostopgenerationofstaticelectricity

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

insulatorsthateasily buildstaticelectricity. Semiconductordevicesmustbestoredandtransported

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

wriststrap. Semiconductordevicesmustnotbetouchedwithbare hands. Similarprecautions 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

totheinput pins, it is possible thataninternalinputlevelmay be generated due to noise, etc.,hence

causingmalfunction. CMOSdevicesbehavedifferentlythanBipolarorNMOSdevices. Inputlevels

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

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

being an output pin. All handling related to the unused pins must be judged device by device and

related specifications governing the devices.

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.

EEPROM is a trademark of NEC Corporation.

MS-DOS, Windows, and Windows NT are either registered trademarks or trademarks of Microsoft

Corporation in the United States and/or other countries.

IBM DOS, 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.

Solaris and SunOS are trademarks of Sun Microsystems, Inc.

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.

www.DataSheet4U.com

User's Manual U11919EJ3V0UM00 5

License not needed:

PD78F9026A

The customer must judge the need for license:

PD789022,

PD789024,

PD789025,

PD789026

M8E 00.4

The information in this document is current as of October, 1999. The information is subject to

change without notice. For actual design-in, refer to the latest publications of NEC's data sheets or

data books, etc., for the most up-to-date specifications of NEC semiconductor products. Not all

products and/or types are available in every country. Please check with an NEC sales representative

for availability and additional information.

No part of this document may be copied or reproduced in any form or by any means without prior

written consent of NEC. NEC assumes no responsibility for any errors that may appear in this document.

NEC does not assume any liability for infringement of patents, copyrights or other intellectual property rights of

third parties by or arising from the use of NEC semiconductor products listed in this document or any other

liability arising from the use of such products. No license, express, implied or otherwise, is granted under any

patents, copyrights or other intellectual property rights of NEC or others.

Descriptions of circuits, software and other related information in this document are provided for illustrative

purposes in semiconductor product operation and application examples. The incorporation of these

circuits, software and information in the design of customer's equipment shall be done under the full

responsibility of customer. NEC assumes no responsibility for any losses incurred by customers or third

parties arising from the use of these circuits, software and information.

While NEC endeavours to enhance the quality, reliability and safety of NEC semiconductor products, customers

agree and acknowledge that the possibility of defects thereof cannot be eliminated entirely. To minimize

risks of damage to property or injury (including death) to persons arising from defects in NEC

semiconductor products, customers must incorporate sufficient safety measures in their design, such as

redundancy, fire-containment, and anti-failure features.

NEC semiconductor products are classified into the following three quality grades:

"Standard", "Special" and "Specific". The "Specific" quality grade applies only to semiconductor products

developed based on a customer-designated "quality assurance program" for a specific application. The

recommended applications of a semiconductor product depend on its quality grade, as indicated below.

Customers must check the quality grade of each semiconductor product 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": Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life

support systems and medical equipment for life support, etc.

The quality grade of NEC semiconductor products is "Standard" unless otherwise expressly specified in NEC's

data sheets or data books, etc. If customers wish to use NEC semiconductor products in applications not

intended by NEC, they must contact an NEC sales representative in advance to determine NEC's willingness

to support a given application.

(Note)

(1) "NEC" as used in this statement means NEC Corporation and also includes its majority-owned subsidiaries.

(2) "NEC semiconductor products" means any semiconductor product developed or manufactured by or for

NEC (as defined above).

•

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.

www.DataSheet4U.com

User's Manual U11919EJ3V0UM00

Major Revision in This Edition

Page Description

Completion of development of

PD789022 and

PD789024

Change of part number from

PD78F9026 to

PD78F9026A

Deletion of following products:

PD789022CU-×××, 789024CU-×××

Throughout

Addition of GB-8ES type package to all models

p.39 Change of circuit type and recommended connection of unused pins in Table 2-1

p.99 Addition of cautions on rewriting CR20 to Section 6.4.1

p.106 Addition of cautions on rewriting CR00 to Section 7.2 (1)

p.109 Addition of description of operation to Section 7.4.1

p.111 Addition of description of operation to Section 7.4.2

p.112 Addition of description of operation to Section 7.4.3

pp.180 to 183 Change of flash writer from Flashpro II to Flashpro III

p.183 Addition of setting example to Section 13.1.4

p.205 Addition of part number of MX78K0S to Appendix B

The mark shows the major revised points.

www.DataSheet4U.com

User's Manual U11919EJ3V0UM00 7

Regional Information

Some information contained in this document may vary from country to country. Before using any NEC

product in your application, pIease 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: 408-588-6000

800-366-9782

Fax: 408-588-6130

800-729-9288

NEC Electronics (Germany) GmbH

Duesseldorf, Germany

Tel: 0211-65 03 02

Fax: 0211-65 03 490

NEC Electronics (UK) Ltd.

Milton Keynes, UK

Tel: 01908-691-133

Fax: 01908-670-290

NEC Electronics Italiana s.r.l.

Milano, Italy

Tel: 02-66 75 41

Fax: 02-66 75 42 99

NEC Electronics (Germany) GmbH

Benelux Office

Eindhoven, The Netherlands

Tel: 040-2445845

Fax: 040-2444580

NEC Electronics (France) S.A.

Velizy-Villacoublay, France

Tel: 01-30-67 58 00

Fax: 01-30-67 58 99

NEC Electronics (France) S.A.

Madrid Office

Madrid, Spain

Tel: 91-504-2787

Fax: 91-504-2860

NEC Electronics (Germany) GmbH

Scandinavia Office

Taeby, Sweden

Tel: 08-63 80 820

Fax: 08-63 80 388

NEC Electronics Hong Kong Ltd.

Hong Kong

Tel: 2886-9318

Fax: 2886-9022/9044

NEC Electronics Hong Kong Ltd.

Seoul Branch

Seoul, Korea

Tel: 02-528-0303

Fax: 02-528-4411

NEC Electronics Singapore Pte. Ltd.

United Square, Singapore

Tel: 65-253-8311

Fax: 65-250-3583

NEC Electronics Taiwan Ltd.

Taipei, Taiwan

Tel: 02-2719-2377

Fax: 02-2719-5951

NEC do Brasil S.A.

Electron Devices Division

Guarulhos-SP Brasil

Tel: 55-11-6462-6810

Fax: 55-11-6462-6829

J00.7

www.DataSheet4U.com

User's Manual U11919EJ3V0UM00

[MEMO]

www.DataSheet4U.com

User's Manual U11919EJ3V0UM00 9

INTRODUCTION

Readers This manual is intended for user engineers who understand the functions of the

PD789026 Subseries to design and develop its application systems and programs.

The target subseries is the

PD789026 Subseries, which consists of the

PD789022,

PD789024,

PD789025,

PD789026, and

PD78F9026A.

Purpose This manual is designed to deepen your understanding of the following functions

described in the following organization.

Organization Two manuals are available for the

PD789026 Subseries: this manual and

Instruction Manual (common to the 78K/0S Series).

PD789026 Subseries

User's Manual 78K/0S Series

User's Manual

Instruction

•Pin functions

•Internal block functions

•Interrupt

•Other internal peripheral functions

•CPU function

•Instruction set

•Instruction description

How to Read This Manual It is assumed that the readers of this manual have general knowledge on electric

engineering, logic circuits, and microcontrollers.

◊To understand the overall functions of the

PD789026 Subseries

→Read this manual in the order of the TABLE OF CONTENTS.

◊How to read register formats

→The name of a bit whose number is encircled is reserved for the assembler and

is defined for the C compiler by the header file sfrbit.h.

◊To learn the detailed functions of a register whose register name is known

→See APPENDEX C.

◊To learn the details of the instruction functions of the 78K/0S Series

→Refer to 78K/0S Series User's Manual 



Instruction (U11047E) separately

available.

Legend Data significance : Left: higher digit, right: lower digit

Active low : ××× (top bar over pin or signal name)

Note : Description of text marked Note

Caution : Important information

Remark : Supplement

Numerical representation : Binary ... ×××× or ××××B

Decimal ... ××××

Hexadecimal ... ××××H

www.DataSheet4U.com

User's Manual U11919EJ3V0UM00

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

However, preliminary versions are not marked as such.

Device Related Documents

Document No.Document Name

English Japanese

PD789022, 789024, 789025, 789026 Data Sheet U11715E U11715J

PD78F9026A Data Sheet U14356E U14356J

PD789026 Subseries User's Manual This manual U11919J

78K/0S Series User's Manual Instruction U11047E U11047J

Documents for Development Tool (User's Manual)

Document No.Document Name

English Japanese

Operation U11622E U11622J

Assembly Language U11599E U11599J

RA78K0S Assembler Package

Structured Assembly Language U11623E U11623J

Operation U11816E U11816JCC78K0S C Compiler

Language U11817E U11817J

SM78K0S System Simulator WindowsTM Based Reference U11489E U11489J

SM78K Series System Simulator External Part User Open

Interface Specifications U10092E U10092J

ID78K0S Integrated Debugger Windows Based Reference U12901E U12901J

IE-78K0S-NS In-Circuit Emulator U13549E U13549J

IE-789026-NS-EM1 Emulation Board To be created To be created

Document for Embedded Software (User's Manual)

Document No.Document Name

English Japanese

78K/0S Series OS MX78K0S Fundamental U12938E U12938J

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

documents for designing, etc.

www.DataSheet4U.com

Este manual sirve para los siguientes modelos

Tabla de contenidos

Otros manuales de Microcontrolador de NEC

NEC

NEC PD703114 Manual de usuario

NEC

NEC mPD780065 Series Manual de usuario

NEC

NEC MuPD754144 Manual de usuario

NEC

NEC 78GK0S/K 1+ Series Instrucciones de instalación y funcionamiento

NEC

NEC mPD789026 Subseries Manual de usuario

NEC

NEC mPD178054 Series Manual de usuario

NEC

NEC 78K0/KD1 Series Manual de usuario

NEC

NEC 78K0S/K 1+ Series Instrucciones de instalación y funcionamiento

NEC

NEC V850E/IA1 mPD703116 Manual de usuario

NEC

NEC V850ES/SA2 UPD703201 Manual de usuario

NEC

NEC mPD780024AS Series Manual de usuario

NEC

NEC 78K0S/K 1+ Series Instrucciones de instalación y funcionamiento

NEC

NEC mPD780973 Series Manual de usuario

NEC

NEC 78K0S/KA1+ Manual de usuario

NEC

NEC EZ-0009 Manual de usuario

NEC

NEC 78K0/KB1+ Manual de usuario

NEC

NEC 78K/0 Series Manual de usuario

NEC

NEC 78K0S/K 1+ Series Instrucciones de instalación y funcionamiento

NEC

NEC 78K/0 Series Manual de usuario

NEC

NEC 78K/0S Series Manual de usuario

NEC

NEC V850E/CA2 JUPITER Manual de usuario

NEC

NEC mPD780344 Series Manual de usuario

NEC

NEC 78K0S/KB1+ Manual de usuario

NEC

NEC mPD784225 Series Manual de usuario

Manuales populares de Microcontrolador de otras marcas

AMS

AMS AS7261 Demo Kit Manual de usuario

Novatek

Novatek NT6861 Manual de usuario

Espressif Systems

Espressif Systems ESP8266 SDK Guía de configuración

Nuvoton

Nuvoton ISD61S00 ChipCorder Guía

STMicrolectronics

STMicrolectronics ST7 Assembler Linker Manual de usuario

Texas Instruments

Texas Instruments Chipcon CC2420DK Manual de usuario

Lantronix

Lantronix Intrinsyc Open-Q 865XR SOM Manual de usuario

Mikroe

Mikroe SEMITECH N-PLC Click Instrucciones de instalación y funcionamiento

Intel

Intel Agilex Manual de usuario

Cypress

Cypress CY4607 HX2VL Manual de usuario

DIGITAL-LOGIC

DIGITAL-LOGIC MICROSPACE Manual de usuario

Texas Instruments

Texas Instruments TMS320F2837 D Series Manual de usuario

CYPRES

CYPRES CY14NVSRAMKIT-001 Manual de usuario

Texas Instruments

Texas Instruments INA-DUAL-2AMP-EVM Manual de usuario

Espressif Systems

Espressif Systems ESP8266EX Instrucciones de funcionamiento

Abov

Abov AC33M8128L Manual de usuario

Laird

Laird BL654PA Manual de usuario

Silicon Laboratories

Silicon Laboratories C8051F800 Manual de usuario