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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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H8SX1663 数据表(PDF) 248 Page - Renesas Technology Corp |
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H8SX1663 数据表(HTML) 248 Page - Renesas Technology Corp |
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248 / 1158 page  Section 6 Bus Controller (BSC) Rev.1.00 Jun. 07, 2006 Page 196 of 1102 REJ09B0294-0100 (2) 16-Bit 3-State Access Space Figures 6.18 to 6.20 show the bus timing of 16-bit 3-state access space. When accessing 16-bit access space, the upper byte data bus (D15 to D8) is used for even addresses, and the lower byte data bus (D7 to D0) is used for odd addresses. Wait cycles can be inserted. Valid Invalid T 1 T 2 T 3 Address CSn AS RD DACK D15 to D8 D7 to D0 D15 to D8 D7 to D0 LHWR LLWR High level High-Z B φ Bus cycle Valid BS RD/ WR Read Write 1. n = 0 to 7 2. When RDNn = 0 3. When DKC = 0 Notes: Figure 6.18 16-Bit 3-State Access Space Bus Timing (Byte Access for Even Address) |
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