NEC MPD780973 Series Bedienungsanleitung

PD780973 Subseries

8-Bit Single-Chip Microcontrollers

PD780973(A)

PD78F0974

Document No. U12406EJ2V0UM00 (2nd edition)

Date Published May 1998 N CP(K)

1997

Preliminary User’s Manual

Printed in Japan

[MEMO]

EEPROM, FIP, and IEBus are trademarks of NEC Corporation.

Windows and WindowsNT are either registered trademarks or trademarks of Microsoft Corporation in the

United States and/or other countries.

PC/AT is a trademark 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.

NEWS and NEWS-OS are trademarks of Sony Corporation.

OSF/Motif is a trademark of OpenSoftware Foundation, Inc.

TRON is an abbreviation of The Realtime Operating system Nucleus.

ITRON is an abbreviation of Industrial TRON.

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

insulatorsthateasilybuildstaticelectricity. 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. Semiconductordevicesmustnotbetouchedwith barehands. Similar precautionsneed

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

totheinputpins, it is possible that aninternalinputlevelmaybegenerated due to noise, etc., hence

causingmalfunction. CMOSdevicesbehave differentlythan BipolarorNMOSdevices. 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 VDD 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.

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

fromuseofsuchdevice. Nolicense,eitherexpress,impliedorotherwise,isgrantedunderanypatents,copyrights

or other intellectual property rights of NEC Corporation or others.

WhileNECCorporationhas beenmaking continuousefforttoenhancethereliabilityof itssemiconductordevices,

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

adevice depend on its qualitygrade, as indicated below. Customers mustcheck the quality grade ofeach 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

This product is produced and sold based on the licensed agreement with CP8 Transac concerning EEPROM-

contained microcontroller.

This product cannot be used for an IC card (SMART CARD).

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

License not needed :

PD78F0974GF-3B9

The customer must judge the need for license :

PD780973GF(A)-×××-3B9

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.

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.1.

Milano, Italy

Tel: 02-66 75 41

Fax: 02-66 75 42 99

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 1130

Tel:65-253-8311

Fax: 65-250-3583

NEC Electronics Taiwan Ltd.

Taipei, Taiwan

Tel: 02-719-2377

Fax: 02-719-5951

NEC do Brasil S.A.

Cumbica-Guarulhos-SP, Brasil

Tel: 011-6465-6810

Fax: 011-6465-6829

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.

Spain Office

Madrid, Spain

Tel: 01-504-2787

Fax: 01-504-2860

NEC Electronics (Germany) GmbH

Scandinavia Office

Taeby, Sweden

Tel: 08-63 80 820

Fax: 08-63 80 388

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.

J98. 2

MAJOR REVISIONS IN THIS EDITION (1/2)

Page Description

p.38 Table 2-1. Pin Input/Output Circuit Types

Correction of ports 8 and 9 input/output circuit types

p.40 Figure 2-1. I/O Circuits of Pins

Change of type 17-A to type 17-G

p.54 Addition of oscillator mode register to Table 3-5. Special Function Register List

p.67 4.1 EEPROM Functions

Change of the number of rewrite frequency per 1 byte as follows:

10,000 times →100,000 times

p.77 5.2.3 Port 2

• Correction of description

• Correction of Figure 5-4. P20 to P27 Block Diagram

p.78 5.2.4 Port 3

• Correction of description

• Correction of Figure 5-5. P30 to P37 Block Diagram

p.82 5.2.8 Port 8

• Correction of description

• Addition of Figure 5-9. P81 Block Diagram

• Correction of Figure 5-10. P82 to P87 Block Diagram

p.83 5.2.9 Port 9

• Correction of description

• Correction of Figure 5-11. P90 to P97 Block Diagram

p.85 Table 5-3. Port Mode Register and Output Latch Settings when Using Alternate Functions

• Change of P×× setting values of P20 to P27 and P30 to P37 from 0 to ×

• Change of Note 2

p.86 Addition of Note in Figure 5-13. Port Mode Register (PM2, PM3) Format

p.89 CHAPTER 6 CLOCK GENERATOR

• Addition of oscillator mode register to Table 6-1. Clock Generator Configuration

• Change of Figure 6-1. Clock Generator Block Diagram

• Addition of (2) Oscillator mode register (OSCM) to 6.3 Clock Generator Control Register

• Addition of explanation of oscillator mode register to 6.5 Operation of Clock Generator

p.163 13.6 Cautions on Emulation

Change of in-circuit emulator of (1) D/A converter mode register (DAM1) as follows:

IE-78001-R-A →IE78K0-NS

Addition of (2) A/D converter of IE-780974-NS-EM1

p.203 16.9 Cautions on Emulation

Change of in-circuit emulator of (1) LCD timer control register (LCDTM) as follows:

IE-78001-R-A →IE78K0-NS

p.205 17.1 Sound Generator Function

Correction of description on (1) Basic cycle output signal (with/without amplitude)

p.214 18.2 Meter Controller/Driver Configuration

Addition of Cautions to (1) Free running up counter (MCNT)

p.247 Table 20-1. HALT Mode Operating Status

Correction of HALT mode operating status of A/D converter

Operable →Operation stops

The mark shows major revised points.

MAJOR REVISIONS IN THIS EDITION (2/2)

Page Description

p.255 Addition of oscillator mode register to Table 21-1. Hardware Status after Reset

p.257 Change of Note in Table 22-1. Differences between

PD78F0974 and

PD780973(A)

p.279 APPENDIX A DEVELOPMENT TOOLS

• Support of in-circuit emulator IE-78K0-NS

• Change in supported OS

• Addition of A.4 Upgrading Former In-circuit Emulator for 78K/0 Series to IE-78001-R-A

• Deletion of OS for IBM PC from previous edition

• Deletion of Development Environment when Using IE-78000-R-A from previous edition

p.291 APPENDIX B EMBEDDED SOFTWARE

• Change in supported OS

• Deletion of Fuzzy Inference Development Support System from previous edition

The mark shows major revised points.

INTRODUCTION

Readers Thismanual has been prepared foruser engineers who want tounderstand the functions

of the

PD780973 Subseries and design and develop its application systems and

programs.

Purpose This manual is designed to help users understand the following functions using the

organization below.

Organization The

PD780973 Subseries manual is separated into two parts: this manual and the

instruction edition (common to the 78K/0 Series).

PD780973 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

How to Read This Manual

This manual assumes general knowledge of electric engineering, logic circuits, and

microcontrollers.

• To understand the functions of the

PD780973(A) and 78F0974 in general:

→Read this manual in the order of the CONTENTS.

• How to read register formats:

→The name of a bit whose number is enclosed in square is reserved for the RA78K/

0 and is defined for the CC78K/0 by the header file sfrbit.h.

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

→Refer to APPENDIX C REGISTER INDEX.

The application examples in this manual are for the “standard” model for general-

purpose electronic systems. If the examples in this manual are to be used for

applications where a quality higher than that of the “special” model is required, study

the quality grade of the respective components and circuits actually used.

Conventions Data significance : Higher digits on the left and lower digits on the right

Active low representation : ××× (overscore over pin or signal name)

Note : Footnote for item marked with Note in the text

Caution : Information requiring particular attention

Remark : Supplementary information

Numerical representation : Binary ··· ×××× or ××××B

Decimal ··· ××××

Hexadecimal ··· ××××H

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

However, preliminary versions are not marked as such.

• Related documents for

PD780973 Subseries

Document Name Document No.

Japanese English

PD780973(A) Preliminary Product Information U12759J U12759E

PD78F0974 Preliminary Product Information U12646J U12646E

PD780973 Subseries User’s Manual U12406J This manual

78K/0 Series User’s Manual Instructions U12326J U12326E

78K/0 Series Instruction Table U10903J —

78K/0 Series Instruction Set U10904J —

PD780973 Subseries Special Function Register Table U12748J —

• Related documents for development tool (User’s Manual)

Document Name Document No.

Japanese English

RA78K0 Assembler Package Operation U11802J U11802E

Assembly Language U11801J U11801E

Structured Assembly Language U11789J U11789E

RA78K Series Structured Assembler Preprocessor EEU-817 EEU-1402

CC78K0 C Compiler Operation U11517J U11517E

Language U11518J U11518E

CC78K/0 C Compiler Application Note Programming Know-how U13034J EEA-1208

CC78K Series Library Source File U12322J —

IE-78K0-NS To be prepared To be prepared

IE-78001-R-A To be prepared To be prepared

SM78K0 System Simulator WindowsTM Base Reference U10181J U10181E

SM78K Series System Simulator External Part User Open U10092J U10092E

Interface Specifications

ID78K0-NS Integrated Debugger PC Base Reference U12900J To be prepared

ID78K0 Integrated Debugger EWS Base Reference U11151J —

ID78K0 Integrated Debugger PC Base Reference U11539J U11539E

ID78K0 Integrated Debugger Windows Base Guide U11649J U11649E

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

version of a document when starting design.

• Related documents for embedded software (User’s Manual)

Document Name Document No.

Japanese English

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

Installation U11536J U11536E

78K/0 Series OS MX78K0 Basics U12257J U12257E

• Other related documents

Document Name Document No.

Japanese English

IC Package Manual C10943X

Semiconductor Device Mounting Technology Manual C10535J C10535E

Quality Grades on NEC Semiconductor Devices C11531J C11531E

NEC Semiconductor Device Reliability/Quality Control System C10983J C10983E

Guide to Prevent Damage for Semiconductor Devices by Electro Static Discharge (ESD) C11892J C11892E

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 of a document when starting design.

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