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C141-E090-01EN5 - 32
Table 5.5 Information to be read by IDENTIFY DEVICE command (3 of 4)
*12 Word 63: Multiword DMA transfer mode
Bit 15-8: Currently used multiword DMA transfer mode
Bit 7-0: Supportable multiword DMA transfer mode
Bit 2=1 Mode 2
Bit 1=1 Mode 1
Bit 0=1 Mode 0
*13 Word 64: Advance PIO transfer mode support status
Bit 15-8: Reserved
Bit 7-0: Advance PIO transfer mode
Bit 1=1 Mode 4
Bit 0=1 Mode 3
*14 Word 80: Major version number
Bit 15-5: Reserved
Bit 4: ATA-4 Supported=1
Bit 3: ATA-3 Supported=1
Bit 2: ATA-2 Supported=1
Bit 1: ATA-1 Supported=1
Bit 0: Undefined
*15 Word 82: Support of command sets
Bit 15: Reserved
Bit 14: NOP command supported = 0
Bit 13: Read Buffer command supported = 1
Bit 12: Write Buffer command supported = 1
Bit 11: Write Verify command supported (Old Spec.) = 0
Bit 10: Host Protected Area feature command supported = 1
Bit 9: Device Reset command supported = 0
Bit 8: SERVICE Interrupt supported = 0
Bit 7: Release Interrupt supported = 0
Bit 6: Lock Ahead supported = 1
Bit 5: Write-cache supported = 1
Bit 4: Packet command feature set supported = 0
Bit 3: Power Management feature set supported=1
Bit 2: Removable feature set supported=0
Bit 1: Security feature set supported=1
Bit 0: SMART feature set supported=1
*16 Word 83: Support of command sets
Bit 15: 0
Bit 14: 1
Bit 13-5: Reserved
Bit 4: Removable Media Status Notification feature set supported = 0
Bit 3: Advanced Power Management feature set supported = 1
Bit 2: CFA feature set supported = 0
Bit 1: READ/WRITE DMA QUEUED supported = 0
Bit 0: DOWNLOAD MICROCODE command supported = 0