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5-38 C141-E145-02EN
Bit 2: 1 = Enable the word 88
Bit 1: 1 = Enable the word 64-70
Bit 0: 1 = Enable the word 54-58
*6 Word 59: Transfer sector count currently set by READ/WRITE
MULTIPLE
command
Bit 15-9: Reserved
Bit 8: 1 = Enable the multiple sector transfer
Bit 7-0: Transfer sector count currently set by READ/WRITE
MULTIPLE command without interrupt supports 2, 4, 8 and 16
sectors.
*7 Word 63: Multiword DMA transfer mode
Bit 15-11: Reserved
Bit 10: '1' = multiword DMA mode 2 is selected.
Bit 9: '1' = multiword DMA mode 1 is selected.
Bit 8: '1' = multiword DMA mode 0 is selected.
Bit 7-3: Reserved
Bit 2: 1 = Multiword DMA mode 2, 1, and 0 supported (Bit 1 = 0 = '1')
Bit 1: 1 = Multiword DMA mode 1, and 0 supported (Bit 0 = '1')
Bit 0: 1 = Mode 0
*8 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
*9 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