5K320 SATA OEM Specification
14.40S.M.A.R.T Function Set (B0h)
Command Block Output Registers |
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| Command Block Input Registers |
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Register | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| Register | 7 | 6 |
| 5 | 4 | 3 | 2 |
| 1 | 0 |
Data | - | - | - | - | - | - | - | - |
| Data | - | - |
| - | - | - | - |
| - | - |
Feature | V | V | V | V | V | V | V | V |
| Error |
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| ...See Below... |
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Sector Count | V | V | V | V | V | V | V | V |
| Sector Count | - | - |
| - | - | - | - |
| - | - |
LBA Low | - | - | - | - | - | - | - | - |
| LBA Low | - | - |
| - | - | - | - |
| - | - |
LBA Mid | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 1 |
| LBA Mid | - | - |
| - | - | - | - |
| - | - |
LBA High | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
| LBA High | - | - |
| - | - | - | - |
| - | - |
Device | - | - | - | - | - | - | - | - |
| Device | - | - |
| - | - | - | - |
| - | - |
Command | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
| Status |
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| ...See Below... |
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Error Register
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
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CRC | UNC | 0 | IDN | 0 | ABT | T0N | AM |
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0 | 0 | 0 | 0 | 0 | V | 0 | 0 |
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Status Register
7 
6 5 
4 
3 
2 
1 
0 BSY RDY DF DSC DRQ COR IDX ERR
0 | V | 0 | V | - | 0 | 0 | V |
Table 110 S.M.A.R.T. Function Set Command (B0h)
The S.M.A.R.T. Function Set command provides access to Attribute Values, Attribute Thresholds and other low level subcommands that can be used for logging and reporting purposes and to accommodate special user needs. The S.M.A.R.T. Function Set command has several separate subcommands which are selectable via the device’s Features Register when the S.M.A.R.T. Function Set command is issued by the host.
14.40.1S.M.A.R.T. Sub commands
In order to select a subcommand the host must write the subcommand code to the device’s Features Register before issuing the S.M.A.R.T. Function Set command. The subcommands and their respective codes are listed below.
Code | Subcommand |
D0h | S.M.A.R.T. Read Attribute Values |
D1h | S.M.A.R.T. Read Attribute Thresholds |
D2h | S.M.A.R.T. Enable/disable Attribute Autosave |
D3h | S.M.A.R.T. Save Attribute Values |
D4h | S.M.A.R.T. Execute |
D5h | S.M.A.R.T. Read Log Sector |
D6h | S.M.A.R.T. Write Log Sector |
D8h | S.M.A.R.T. Enable Operations |
D9h | S.M.A.R.T. Disable Operations |
DAh | S.M.A.R.T. Return Status |
DBh | S.M.A.R.T. Enable/Disable Automatic |
| S.M.A.R.T. Read Attribute Values (Subcommand D0h) |
This subcommand returns the device’s Attri bute Values to the host. Upon receipt of the S.M.A.R.T. Read Attribute Values subcommand from the host, the device saves any updated Attribute Values to the Attribute Data sectors, and then waits for the host to transfer the 512 bytes of Attribute Value information from the device.
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