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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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H8/3028F 数据表(PDF) 176 Page - Renesas Technology Corp |
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H8/3028F 数据表(HTML) 176 Page - Renesas Technology Corp |
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176 / 923 page  Rev. 2.00, 09/03, page 146 of 890 16-Bit, Two-State-Access Areas: Figures 6.14 to 6.16 show the timing of bus control signals for a 16-bit, two-state-access area. In these areas, the upper data bus (D15 to D8) is used in accesses to even addresses and the lower data bus (D7 to D0) in accesses to odd addresses. Wait states cannot be inserted. Bus cycle Even external address in area n Valid Invalid Valid High φ Address bus CSn AS RD D15 to D8 D7 to D0 HWR LWR D15 to D8 D7 to D0 Read access Write access Note: n = 7 to 0 T1 T2 Undetermined data Figure 6.14 Bus Control Signal Timing for 16-Bit, Two-State-Access Area (1) (Byte Access to Even Address) |
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