
How to Use This Manual
1.
Purpose and Target Readers
This manual is designed to provide the user with an understanding of the hardware functions and electrical
characteristics of the MCU. It is intended for users designing application systems incorporating the MCU. A basic
knowledge of electric circuits, logical circuits, and MCUs is necessary in order to use this manual.
The manual comprises an overview of the product; descriptions of the CPU, system control functions, peripheral
functions, and electrical characteristics; and usage notes.
Particular attention should be paid to the precautionary notes when using the manual. These notes occur
within the body of the text, at the end of each section, and in the Usage Notes section.
The revision history summarizes the locations of revisions and additions. It does not list all revisions. Refer
to the text of the manual for details.
The following documents apply to the R8C/3GM Group. Make sure to refer to the latest versions of these documents.
The newest versions of the documents listed may be obtained from the Renesas Electronics Web site.
Document Type
Description
Document Title
Document No.
Datasheet
Hardware overview and electrical characteristics
R8C/3GM Group
Datasheet
R01DS0127EJ0100
User’s manual:
Hardware
Hardware specifications (pin assignments, memory
maps, peripheral function specifications, electrical
characteristics, timing charts) and operation
description
Note: Refer to the application notes for details on
using peripheral functions.
R8C/3GM Group
User’s Manual:
Hardware
This User’s manual
User’s manual:
Software
Description of CPU instruction set
R8C/Tiny Series
Software Manual
REJ09B0001
Application note
Information on using peripheral functions and
application examples
Sample programs
Information on writing programs in assembly
language and C
Available from Renesas Electronics Web
site.
Renesas
technical update
Product specifications, updates on documents, etc.