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H8/3021 Datasheet(PDF) 671 Page - Renesas Technology Corp |
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H8/3021 Datasheet(HTML) 671 Page - Renesas Technology Corp |
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671 / 712 page  Appendix B. Internal I/O Register Field Rev.2.00 Mar. 22, 2007 Page 647 of 684 REJ09B0352-0200 ASTCR—Access State Control Register H'ED Bus controller Bit Initial value Read/Write 7 AST7 1 R/W 6 AST6 1 R/W 5 AST5 1 R/W 4 AST4 1 R/W 3 AST3 1 R/W 0 AST0 1 R/W 2 AST2 1 R/W 1 AST1 1 R/W Area 7 to 0 access state control Areas 7 to 0 are two-state access areas Areas 7 to 0 are three-state access areas Bits 7 to 0 0 1 Number of States in Access Cycle AST7 to AST0 WCR—Wait Control Register H'EE Bus controller Bit Initial value Read/Write 7 — 1 — 6 — 1 — 5 — 1 — 4 — 1 — 3 WMS1 0 R/W 0 WC0 1 R/W 2 WMS0 0 R/W 1 WC1 1 R/W Wait count 1 and 0 WC1 Number of Wait States WC0 Bit 0 Bit 1 0 1 No wait states inserted by wait-state controller 1 state inserted 2 states inserted 3 states inserted 0 0 1 1 Wait mode select 1 and 0 WMS1 Wait Mode WMS0 Bit 2 Bit 3 0 1 Programmable wait mode No wait states inserted by wait-state controller Pin wait mode 1 Pin auto-wait mode 0 0 1 1 |
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