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5.3 Host Commands
*4 Word 49: Capabilities
Bits 15-14: Reserved
Bit 13: Standby timer value. ATA spec is '1.'
Bit 12: Reserved
Bit 11: '1' = IORDY supported
Bit 10: '1' = IORDY inhibition supported
Bit 9: '1' = DMA supported
Bit 8: '1' = LBA supported
Bits 7-0: Undefined
*5 Word 50: Device capability
Bit 15: 0
Bit 14: 1
Bit 13 to 1: Reserved
Bit 0: Standby timer value '1' = Standby timer value of the device is the
smallest value.
*6 Word 51: PIO data transfer mode
Bits 15-8: PIO data transfer mode X '02' = PIO mode 2 supported
Bits 7-0: Undefined
*7 Word 53: Enables/disables setting of word 54-58 and 64-70
Bits 15-3: Reserved
Bit 2: '1' = Enables the word 88
Bit 1: '1' = Enables the word 64-70
Bit 0: '1' = Enables the word 54-58
*8 Word 59: Transfer sector count currently set by READ/WRITE
MULTIPLE command
Bits 15-9: Reserved
Bit 8: '1' = Enables the multiple sector transfer
Bits 7-0: Transfer sector count currently set by READ/WRITE MULTIPLE
command without interrupt supports 1, 2, 4, 8 and 16 sectors.
C141-E269 5-109