780964 datasheet(7/129 Pages) NEC

7 / 129 page

User's Manual U12326EJ4V0UM

INTRODUCTION

Target Readers

This manual is intended for users who wish to understand the functions of

78K/0 Series products and to design and develop its application systems and

programs.

Purpose

This manual is intended to give users an understanding of the various kinds of

instruction functions of 78K/0 Series products.

Organization

This manual is broadly divided into the following sections.

• CPU functions

• Instruction set

• Explanation of instructions

How to Read This Manual

It is assumed that readers of this manual have general knowledge in the fields of

electrical engineering, logic circuits, and microcontrollers.

• To check the details of the functions of an instruction whose mnemonic is known:

→ Refer to APPENDICES B and C.

• To check an instruction whose mnemonic is not known but whose general

function is known:

→ Find the mnemonic in CHAPTER 4 INSTRUCTION SET and then check the

detailed functions in CHAPTER 5 EXPLANATION OF INSTRUCTIONS.

• To learn about the various kinds of 78K/0 Series product instructions in general:

→ Read this manual in the order of CONTENTS.

• To learn about the hardware functions of 78K/0 Series products:

→ See the separate user’s manuals.

Conventions

Data significance:

Higher digits on the left and lower digits on the right

Note:

Footnote for item marked with Note in the text

Caution:

Information requiring particular attention

Remark:

Supplementary information

Numeral representation:

Binary ................. XXXX or XXXXB

Decimal .............. XXXX

Hexadecimal ...... XXXXH

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