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H8SX1663 数据表(PDF) 277 Page - Renesas Technology Corp |
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H8SX1663 数据表(HTML) 277 Page - Renesas Technology Corp |
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277 / 1158 page ![]() Section 6 Bus Controller (BSC) Rev.1.00 Jun. 07, 2006 Page 225 of 1102 REJ09B0294-0100 6.9.9 Extension of Chip Select ( CS) Assertion Period In the address/data multiplexed interface, the extension cycles can be inserted before and after the bus cycle. For details, see section 6.6.6, Extension of Chip Select ( CS) Assertion Period. Figure 6.35 shows an example of the chip select ( CS) assertion period extension timing. T ma1 T ma2 T 2 T t T 1 T h B φ Address bus D15 to D0 D15 to D0 Address cycle Bus cycle Data cycle CSn LHWR LLWR AH RD DACK BS RD/ WR Note: n = 3 to 7 Address Read data Address Write data Read Write Figure 6.35 Chip Select ( CS) Assertion Period Extension Timing in Data Cycle |
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