Interface
5-38 C141-E192-01EN
Bit 7-0: Advance PIO transfer mode
Bit 1: 1 = Mode 4
Bit 0: 1 = Mode 3
*11 WORD 80
Bit 15-7: Reserved
Bit 6: 1 = ATA/ATAPI-6 supported
Bit 5: 1 = ATA/ATAPI-5 supported
Bit 4: 1 = ATA/ATAPI-4 supported
Bit 3: 1 = ATA-3 supported
Bit 2: 1 = ATA-2 supported
Bit 1-0: Undefined
*12 WORD 82
Bit 15: Undefined
Bit 14: '1' = Supports the NOP command.
Bit 13: '1' = Supports the READ BUFFER command.
Bit 12: '1' = Supports the WRITE BUFFER command.
Bit 11: Undefined
Bit 10: '1' = Supports the Host Protected Area feature set.
Bit 9: '1' = Supports the DEVICE RESET command.
Bit 8: '1' = Supports the SERVICE interrupt.
Bit 7: '1' = Supports the release interrupt.
Bit 6: '1' = Supports the read cache function.
Bit 5: '1' = Supports the write cache function.
Bit 4: '1' = Supports the PACKET command feature set.
Bit 3: '1' = Supports the power management feature set.
Bit 2: '1' = Supports the Removable Media feature set.
Bit 1: '1' = Supports the Security Mode feature set.
Bit 0: '1' = Supports the SMART feature set.
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