4.3Supported ATA commands
The following table lists Serial ATA standard commands that the drive supports. For a detailed description of the ATA commands, refer to the Serial ATA: High Speed Serialized AT Attachment specification. See “S.M.A.R.T. commands” on page 33.for details and subcommands used in the S.M.A.R.T. implementation.
Command name | Command code (in hex) |
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Download Microcode | 92h |
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Execute Device Diagnostics | 90h |
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Flush Cache | E7h |
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Flush Cache Extended | EAh |
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Identify Device | ECh |
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Initialize Device Parameters | 91h |
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Read Buffer | E4h |
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Read DMA | C8h |
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Read DMA Extended | 25h |
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Read DMA without Retries | C9h |
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Read Multiple | C4h |
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Read Multiple Extended | 29h |
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Read Native Max Address | F8h |
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Read Native Max Address Extended | 27h |
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Read Sectors | 20h |
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Read Sectors Extended | 24h |
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Read Sectors without Retries | 21h |
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Read Verify Sectors | 40h |
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Read Verify Sectors Extended | 42h |
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Read Verify Sectors without Retries | 41h |
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Seek | 70h |
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Set Features | EFh |
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Set Max Address | F9h |
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Note: Individual Set Max commands are | Address: | 00H |
identified by the value placed in the Set Max | Password: | 01H |
Features register as defined to the right. | Lock: | 02H |
| Unlock: | 03H |
| Freeze Lock: | 04H |
Set Multiple Mode | C6h |
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S.M.A.R.T. | B0h |
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Write Buffer | E8h |
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Write DMA | CAh |
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Write DMA Extended | 35h |
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26 | Barracuda 7200.7 Serial ATA Product Manual, Rev. N |
