6
Preliminary User’s Manual U16035EJ1V0UM
INTRODUCTION
Readers
This manual has been prepared for user engineers who understand the functions of the
µ
PD780024AS, 780034AS Subseries and wish to design and develop application
systems and programs for these devices.
µ
PD780024AS Subseries:
µ
PD780021AS, 780022AS, 780023AS, 780024AS
µ
PD780034AS Subseries:
µ
PD780031AS, 780032AS, 780033AS, 780034AS, 78F0034BS
Purpose
This manual is intended to give users an understanding of the functions described in the
Organization
below.
Organization
The
µ
PD780024AS, 780034AS Subseries manual is separated into two parts: this
manual and the instructions edition (common to the 78K/0 Series).
µ
PD780024AS, 780034AS 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
It is assumed that the reader of this manual has general knowledge in the fields of
electrical engineering, logic circuits, and microcontrollers.
•
To gain a general understanding of functions:
→
Read this manual in the order of the
Contents
.
•
How to interpret the register format:
→
For the bit number enclosed in square, the bit name is defined as a reserved word
in RA78K0, and in CC78K0, already defined in the header file named sfrbit.h.
•
To check the details of a register when you know the register name.
→
Refer to
APPENDIX D REGISTER INDEX.
Differences Between
µ
PD780024AS and 780034AS Subseries
The resolution of the A/D converter differ between the
µ
PD780024AS and 780034AS Subseries products.
Subseries
µ
PD780024AS
µ
PD780034AS
Item
A/D converter
8-bit resolution
10-bit resolution