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HD6417618 数据表(PDF) 220 Page - Renesas Technology Corp |
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HD6417618 数据表(HTML) 220 Page - Renesas Technology Corp |
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220 / 646 page ![]() Section 7 Bus State Controller (BSC) Rev. 6.00 Jun. 12, 2007 Page 188 of 610 REJ09B0131-0600 The IOIS16 signal is sampled at the falling edge of the CKIO signal in the Tpci0, Tpci0w, and Tpci1 cycles when bits TED3 to TED0 are specified as 1.5 cycles or more, and is reflected in the CE2 signal 1.5 cycles after the CKIO sampling point. Bits TED3 to TED0 must be specified appropriately to satisfy the setup time of the PC card from ICIORD and ICIOWR to CEn. Figure 7.36 shows the dynamic bus sizing basic timing. Note that the IOIS16 signal is not supported in big endian mode. In the big endian mode, the IOIS16 signal must be fixed low. Tpci1w CKIO A25 to A0 CExx RD/ WR ICIORD D15 to D0 ICIOWR D15 to D0 BS Read Write Tpci2 Tpci1 Tpci1w Tpci1w Figure 7.34 Basic Timing for PCMCIA I/O Card Interface |
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