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H8/3028F 数据表(PDF) 145 Page - Renesas Technology Corp |
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H8/3028F 数据表(HTML) 145 Page - Renesas Technology Corp |
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145 / 923 page ![]() Rev. 2.00, 09/03, page 115 of 890 Bit 3 W51 Bit 2 W50 Description 0 0 Program wait not inserted when external space area 5 is accessed 1 1 program wait state inserted when external space area 5 is accessed 1 0 2 program wait states inserted when external space area 5 is accessed 1 3 program wait states inserted when external space area 5 is accessed (Initial value) Bits 1 and 0—Area 4 Wait Control 1 and 0 (W41, W40): These bits select the number of program wait states when area 4 in external space is accessed while the AST4 bit in ASTCR is set to 1. Bit 1 W41 Bit 0 W40 Description 0 0 Program wait not inserted when external space area 4 is accessed 1 1 program wait state inserted when external space area 4 is accessed 1 0 2 program wait states inserted when external space area 4 is accessed 1 3 program wait states inserted when external space area 4 is accessed (Initial value) WCRL W11 W10 W01 W00 1 Initial value 1111111 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W 76543210 W31 W30 W21 W20 Bit Bits 7 and 6—Area 3 Wait Control 1 and 0 (W31, W30): These bits select the number of program wait states when area 3 in external space is accessed while the AST3 bit in ASTCR is set to 1. Bit 7 W31 Bit 6 W30 Description 0 0 Program wait not inserted when external space area 3 is accessed 1 1 program wait state inserted when external space area 3 is accessed 1 0 2 program wait states inserted when external space area 3 is accessed 1 3 program wait states inserted when external space area 3 is accessed (Initial value) |
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