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SMC032AF bảng dữ liệu(PDF) 38 Page - Numonyx B.V |
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SMC032AF bảng dữ liệu(HTML) 38 Page - Numonyx B.V |
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38 / 82 page ![]() Card configuration SMCxxxAF 38/82 6.8 True IDE mode I/O function The card can be configured in a True IDE mode of operation. It is configured in this mode only when the –OE signal is grounded by the host during the power-off to power-on cycle. In this True IDE mode the PCMCIA protocol and configuration are disabled and only I/O operations to the task file and data register are allowed. No memory or attribute registers are accessible to the host. The Set Feature command can be used to put the device in 8 bit mode (see Table 34). Removing and reinserting the card while the host computer’s power is on will reconfigure the card to PC Card ATA mode. Table 34. True IDE mode I/O function Function code – CE2 – CE1 A2 to A0 – IORD – IOWR D15 to D8 D7 to D0 Invalid mode L L X X X High Z High Z Standby mode H H X X X High Z High Z Task File Write H L 1h-7h H L Don’t care Data In Task File Read H L 1h-7h L H High Z Data Out Data Register Write H L L H L Odd-byte In Even-byte In Data Register Read H L L L H Odd-byte Out Even-byte Out Control Register Write L H 6h H L Don’t care Control In Alternate Status Read L H 6h L H High Z Status Out Drive Address L H 7h L H High Z Data Out |
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