5K320 SATA OEM Specification
14.2 Device Configuration Overlay (B1h)
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| Command Block Input Registers |
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| Register |
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| 7 |
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| 6 |
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| 5 |
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| 4 |
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| 3 |
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| 2 |
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| 1 |
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| 0 |
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| Register |
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| 7 |
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| 6 |
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| 5 |
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| 4 |
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| 3 |
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| 2 |
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| 1 |
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| Data |
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| - |
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| - |
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| Data |
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| Feature |
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| 1 |
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| 0 |
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| 1 |
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| 0 |
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| V |
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| V |
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| V |
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| Error |
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| ...See Below... |
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| Sector Count |
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| - |
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| - |
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| Sector Count |
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| V |
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| V |
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| V |
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| V |
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| V |
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| V |
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| V |
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| LBA Low |
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| - |
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| - |
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| - |
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| - |
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| - |
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| - |
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| LBA Low |
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| - |
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| - |
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| - |
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| - |
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| LBA Mid |
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| - |
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| - |
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| - |
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| - |
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| - |
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| - |
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| - |
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| LBA Mid |
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| V |
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| V |
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| V |
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| V |
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| V |
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| V |
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| V |
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| V | ||||||||
| LBA High |
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| - |
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| - |
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| - |
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| - |
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| - |
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| LBA High |
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| V |
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| V |
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| V |
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| V |
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| Device |
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| Device |
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| - |
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| Command |
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| 1 |
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| 1 |
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| 1 |
| 0 |
| 0 |
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| 0 |
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| 1 |
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| Status |
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| Error Register |
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| Status Register |
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| 7 |
| 6 | 5 | 4 |
| 3 |
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| 2 |
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| 1 |
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| 0 |
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| 7 |
| 6 |
| 5 |
| 4 | 3 |
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| 2 |
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| 1 |
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| 0 |
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| CRC |
| UNC | 0 | IDN |
| 0 |
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| ABT |
| T0N |
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| AM |
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| BSY |
| RDY |
| DF |
| DSC | DRQ |
| COR |
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| IDX |
| ERR | ||||||||||||||||||||||||||||||||||
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| N |
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| 0 |
| 0 | 0 | 0 |
| 0 |
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| V |
| 0 |
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| 0 |
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| V |
| V |
| 0 |
| - |
| V |
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| V |
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Table 44 Device Configuration Overlay Command (B1h)
Individual Device Configuration Overlay feature set commands are identified by the value placed in the Features register. The table below shows these Features register values.
Value | Command |
C0h | DEVICE CONFIGURATION RESTORE |
C1h | DEVICE CONFIGURATION FREEZE LOCK |
C2h | DEVICE CONFIGURATION IDENTIFY |
C3h | DEVICE CONFIGURATION SET |
other | Reserved |
Table 45 Device Configuration Overlay Features register values
14.2.1DEVICE CONFIGURATION RESTORE (subcommand C0h)
The DEVICE CONFIGURATION RESTORE command discard any setting previously made by a DEVICE CONFIGURATION SET command and return the content of the IDENTIFY DEVICE command response to the original settings as indicated by the data returned from the execution of a DEVICE CONFIGURATION IDENTIFY command.
14.2.2DEVICE CONFIGURATION FREEZE LOCK (subcommand C1h)
The DEVICE CONFIGURATION FREEZE LOCK command prevents accidental modification of the Device Configuration Overlay settings. After successful execution of a DEVICE CONFIGURATION FREEZE LOCK command, all DEVICE CONFIGURATION SET, DEVICE CONFIGURATION FREEZE LOCK, DEVICE CONFIGURATION IDENTIFY, and DEVICE CONFIGURATION RESTORE commands are aborted by the device. The DEVICE CONFIGURATION FREEZE LOCK condition shall be cleared by a
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