How to Read This Manual It is assumed that the readers of this manual have general knowledge of electrical
engineering, logic circuits, and microcontrollers.
• To gain a general understanding of functions:
→ Read this manual in the order of the CONTENTS. The mark “<R>” shows major
revised points. The revised points can be easily searched by copying an “<R>” in the
PDF file and specifying it in the “Find what:” field.
• How to interpret the register format:
→ For a bit number enclosed in angle brackets, the bit name is defined as a reserved
word in the assembler, and is defined as an sfr variable using the #pragma sfr
directive in the compiler.
• To know details of the RL78 Microcontroller instructions:
→ Refer to the separate document RL78 Microcontroller Instructions User’s Manual
(R01US0015E).
Conventions Data significance: Higher digits on the left and lower digits on the right
Active low representations: ××× (overscore over pin and signal name)
Note: Footnote for item marked with Note in the text
Caution: Information requiring particular attention
Remark: Supplementary information
Numerical representations: 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.
Documents Related to Devices
Document Name Document No.
RL78/G13 User’s Manual Hardware This manual
RL78 Microcontroller Instructions User’s Manual R01US0015E
Documents Related to Flash Memory Programming
Document Name Document No.
PG-FP5 Flash Memory Programmer User’s Manual R20UT0008E
Caution The related documents listed above are subject to change without notice. Be sure to use the latest
version of each document when designing.
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