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R5F21122FP Datasheet(PDF) 3 Page - Renesas Technology Corp |
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R5F21122FP Datasheet(HTML) 3 Page - Renesas Technology Corp |
3 / 198 page How to Use This Manual 1. Introduction This hardware manual provides detailed information on the R8C/12 Group of microcomputers. Users are expected to have basic knowledge of electric circuits, logical circuits and microcomputers. 2. Register Diagram The symbols, and descriptions, used for bit function in each register are shown below. *1 Blank:Set to “0” or “1” according to the application 0: Set to “0” 1: Set to “1” X: Nothing is assigned *2 RW: Read and write RO: Read only WO: Write only −: Nothing is assigned *3 •Reserved bit Reserved bit. Set to specified value. *4 •Nothing is assigned Nothing is assigned to the bit concerned. As the bit may be use for future functions, set to “0” when writing to this bit. •Do not set to this value The operation is not guaranteed when a value is set. •Function varies depending on mode of operation Bit function varies depending on peripheral function mode. Refer to respective register for each mode. *5 Follow the text in each manual for binary and hexadecimal notations. *4 XXX register SymbolAddressAfter reset XXXXXX00h Bit Name Bit symbol RW b7b6b5b4b3b2b1b0 XXX Bit 1 0: XXX 0 1: XXX 1 0: Avoid this setting 1 1: XXX b1 b0 XXX1 XXX0 XXX4 Reserved Bit XXX5 XXX7 XXX6 Function Nothing is assigned. When write, should set to "0". When read, its content is indeterminate. XXX Bit Function varies depending on each operation mode Must set to “0” 0 (b3) (b2) RW RW RW RW WO RW RO XXX Bit 0: XXX 1: XXX *1 *2 *3 *5 |
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