Word | Description | Value |
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The mandatory value of the world wide name (WWN) for the drive. | Each drive will have a unique | |
| NOTE: This field is valid if word 84, bit 8 is set to 1 indicating | value. |
| WWN support. |
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0000H | ||
128 | Security status | 0001H |
xxxxH | ||
0000H | ||
255 | Integrity word | xxA5H |
Note. See the bit descriptions below for words 63, 84, and 88 of the Identify Drive data.
Description (if bit is set to 1)
| Bit | Word 63 |
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| 0 | Multiword DMA mode 0 is supported. |
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| 1 | Multiword DMA mode 1 is supported. |
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| 2 | Multiword DMA mode 2 is supported. |
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| 8 | Multiword DMA mode 0 is currently active. |
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| 9 | Multiword DMA mode 1 is currently active. |
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| 10 | Multiword DMA mode 2 is currently active. |
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| Bit | Word 84 |
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| 0 | SMART error loggin is supported. |
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| 1 | SMART |
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| 2 | Media serial number is supported. |
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| 3 | Media Card Pass Through Command feature set is supported. |
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| 4 | Streaming feature set is supported. |
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| 5 | GPL feature set is supported. |
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| 6 | WRITE DMA FUA EXT and WRITE MULTIPLE FUA EXT commands are supported. |
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| 7 | WRITE DMA QUEUED FUA EXT command is supported. |
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| 8 | |
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| Obsolete. | |
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| Reserved for TLC. | |
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| 13 | IDLE IMMEDIATE command with IUNLOAD faeture is supported. |
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| 14 | Shall be set to 1. |
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| 15 | Shall be cleared to 0. |
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Constellation.2 Serial ATA Product Manual, Rev. B | 39 |