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5.3 Host Commands
C141-E120-02EN 5-87
Table 5.16 DEVICE CONFIGURATION IDENTIFY data structure
Word Value Content
0 X'0001' Data structure revision
1 X'0007' Multiword DMA modes supported
Bit 15-3: Reserved
Bit 2: 1 = Multiword DMA mode 2 and below are supported
Bit 1: 1 = Multiword DMA mode 1 and below are supported
Bit 0: 1 = Multiword DMA mode 0 is supported
2 X'003F' Ultra DMA modes supported
Bit 15-6: Reserved
Bit 5: 1 = Ultra DMA mode 5 and below are supported
Bit 4: 1 = Ultra DMA mode 4 and below are supported
Bit 3: 1 = Ultra DMA mode 3 and below are supported
Bit 2: 1 = Ultra DMA mode 2 and below are supported
Bit 1: 1 = Ultra DMA mode 1 and below are supported
Bit 0: 1 = Ultra DMA mode 0 is supported
3-6 - Maximum LBA address
7 X'00CF' Command set/feature set supported
Bit 15-9: Reserved
Bit 8: 1 = 48-bit Addressing feature set supported
Bit 7: 1 = Host Protected Area feature set supported
Bit 6: 1 = Automatic acoustic management supported
Bit 5: 1 = READ/WRITE DMA QUEUED commands supported
Bit 4: 1 = Power-up in Standby feature set supported
Bit 3: 1 = Security feature set supported
Bit 2: 1 = SMART error log supported
Bit 1: 1 = SMART self-test supported
Bit 0: 1 = SMART feature set supported
8-254 X'0000' Reserved
255 X'xxA5' Integrity word. Bits 15:8 contains the data structure checksum that is
the two's complement of the sum of all byte in words 0 through 254
and the byte consisting of bits 7:0 of word 255.