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UPD780138 Datasheet(PDF) 7 Page - NEC |
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UPD780138 Datasheet(HTML) 7 Page - NEC |
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7 / 558 page  User’s Manual U16228EJ2V0UD 7 How to Read This Manual It is assumed that the readers of this manual have general knowledge of electrical engineering, logic circuits, and microcontrollers. • When using this manual as the manual for (A) grade products, (A1) grade products, and (A2) grade products: → Only the quality grade differs between standard products and (A), (A1), and (A2) grade products. Read the part number as follows. • µPD780131 → µPD780131(A), 780131(A1), 780131(A2) • µPD780132 → µPD780132(A), 780132(A1), 780132(A2) • µPD780133 → µPD780133(A), 780133(A1), 780133(A2) • µPD780134 → µPD780134(A), 780134(A1), 780134(A2) • µPD780136 → µPD780136(A), 780136(A1), 780136(A2) • µPD780138 → µPD780138(A), 780138(A1), 780138(A2) • µPD78F0134 → µPD78F0134(A), 78F0134(A1) • µPD78F0138 → µPD78F0138(A), 78F0138(A1) • To gain a general understanding of functions: → Read this manual in the order of the CONTENTS. The mark shows major revised points. • How to interpret the register format: → For a bit number enclosed in brackets, the bit name is defined as a reserved word in the assembler, and is already defined in the header file named sfrbit.h in the C compiler. • To check the details of a register when you know the register name. → Refer to APPENDIX C REGISTER INDEX. • To know details of the 78K/0 Series instructions. → Refer to the separate document 78K/0 Series Instructions User’s Manual (U12326E). Caution Examples in this manual employ the “standard” quality grade for general electronics. When using examples in this manual for the “special” quality grade, review the quality grade of each part and/or circuit actually used. 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 |
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