Table of Contents
Advertisement
Readers
Purpose
Organization
How to Read This Manual
Conventions
INTRODUCTION
This manual is intended for users who wish to understand the functions of the
µ PD789800 Subseries and who design and develop its application systems and
programs.
Target products:
• µ PD789800 Subseries: µ PD789800 and µ PD78F9801
This manual is intended to give users an understanding of the functions described in
the Organization below.
Two manuals are available for the µ PD789800 Subseries:
This manual and the Instruction Manual (common to the 78K/0S Series).
µ PD789800 Subseries
User's Manual
• Pin functions
• Internal block functions
• Interrupts
• Other internal peripheral functions
• Electrical specifications
It is assumed that the readers of this manual have general knowledge in the fields of
electrical engineering, logic circuits, and microcontrollers.
• To understand the overall functions of the µ PD789800 Subseries
→ Read this manual in the order of the CONTENTS.
• How to read register formats
→ The name of a bit whose number is enclosed in angle brackets (< >) is reserved
in the assembler and is defined in the C compiler by the header file sfrbit.h.
• To learn the detailed functions of a register whose register name is known
→ See APPENDIX B REGISTER INDEX.
• To learn details of the instruction functions of the 78K/0S Series
→ Refer to 78K/0S Series Instruction User's Manual (U11047E) separately
available.
• To know the electrical specifications of the µ PD789800 Subseries
→ Refer to CHAPTER 16 ELECTRICAL SPECIFICATIONS.
Data significance:
Active low representation:
Note:
Caution:
Remark:
Numerical representation:
User's Manual U12978EJ3V0UD
78K/0S Series
User's Manual
Instruction
• CPU function
• Instruction set
• Instruction description
Higher digits on the left and lower digits on the right
xxx (overscore over pin or signal name)
Footnote for item marked with Note in the text
Information requiring particular attention
Supplementary information
Binary ... xxxx or xxxxB
Decimal ... xxxx
Hexadecimal ... xxxxH
7
Advertisement
Table of Contents
