NEC PD789860 User Manual page 8

How to Use This Manual
Conventions
8
It is assumed that the readers of this manual have general knowledge of electrical
engineering, logic circuits, and microcontrollers.
◊ For users who use this document as the manual for the
→ The only differences between standard products and (A) products are the quality
grades (refer to 1.9 Differences Between Standard Quality Grade Products
and (A) Products). For the (A) products, read the part numbers in Chapter 3 to
19 in the following manner.
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PD789860 →
◊ To understand the overall functions of the
→ Read this manual in the order of the CONTENTS.
◊ How to read register formats
→ The name of a bit whose number is enclosed with <> is reserved in the
assembler and is defined as an sfr variable by the #pragma sfr directive for the
C compiler.
◊ To learn the detailed functions of a register whose register name is known
→ See APPENDIX C REGISTER INDEX.
◊ To learn the details of the instruction functions of the 78K/0S Series
→ Refer to 78K/0S Series Instructions User's Manual (U11047E) separately
available.
◊ To learn the electrical specifications of the
→ See CHAPTER 20 ELECTRICAL SPECIFICATIONS.
Data significance:
Active low representation: ××× (overscore over pin or signal name)
Note:
Caution:
Remark:
Numerical representation: Binary ... ×××× or ××××B
User's Manual U14826EJ5V0UD
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PD789860(A)
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PD789860, 789861 Subseries
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PD789860, 789861 Subseries
Higher digits on the left and lower digits on the right
Footnote for item marked with Note in the text
Information requiring particular attention
Supplementary information
Decimal ... ××××
Hexadecimal ... ××××H
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PD789860(A)