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H8SX1663 датащи(PDF) 256 Page - Renesas Technology Corp |
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H8SX1663 датащи(HTML) 256 Page - Renesas Technology Corp |
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256 / 1158 page ![]() Section 6 Bus Controller (BSC) Rev.1.00 Jun. 07, 2006 Page 204 of 1102 REJ09B0294-0100 6.6.7 DACK Signal Output Timing For DMAC single address transfers, the DACK signal assert timing can be modified by using the DKC bit in BCR1. Figure 6.24 shows the DACK signal output timing. Setting the DKC bit to 1 asserts the DACK signal a half cycle earlier. T 1 T 2 Bus cycle B φ Address bus Write data Write Read data Read CSn AS RD Data bus Data bus LHWR, LLWR BS RD/ WR DKC = 0 DKC = 1 DACK Notes: 1. n = 7 to 0 2. RDNn = 0 Figure 6.24 DACK Signal Output Timing |
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