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