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H8/3028F 数据表(PDF) 144 Page - Renesas Technology Corp |
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H8/3028F 数据表(HTML) 144 Page - Renesas Technology Corp |
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144 / 923 page ![]() Rev. 2.00, 09/03, page 114 of 890 WCRH W51 W50 W41 W40 1 Initial value 1111111 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W 76543210 W71 W70 W61 W60 Bit Bits 7 and 6—Area 7 Wait Control 1 and 0 (W71, W70): These bits select the number of program wait states when area 7 in external space is accessed while the AST7 bit in ASTCR is set to 1. Bit 7 W71 Bit 6 W70 Description 0 0 Program wait not inserted when external space area 7 is accessed 1 1 program wait state inserted when external space area 7 is accessed 1 0 2 program wait states inserted when external space area 7 is accessed 1 3 program wait states inserted when external space area 7 is accessed (Initial value) Bits 5 and 4—Area 6 Wait Control 1 and 0 (W61, W60): These bits select the number of program wait states when area 6 in external space is accessed while the AST6 bit in ASTCR is set to 1. Bit 5 W61 Bit 4 W60 Description 0 0 Program wait not inserted when external space area 6 is accessed 1 1 program wait state inserted when external space area 6 is accessed 1 0 2 program wait states inserted when external space area 6 is accessed 1 3 program wait states inserted when external space area 6 is accessed (Initial value) Bits 3 and 2—Area 5 Wait Control 1 and 0 (W51, W50): These bits select the number of program wait states when area 5 in external space is accessed while the AST5 bit in ASTCR is set to 1. |
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