360014937
Table
Command Code
Command Name | Hex Value |
| PARAMETERS USED |
| ||||
|
|
| SC | SN | CY | DRV | HD | FT |
Nop |
| 00H | X | X | X | O | X | X |
Recalibrate |
| 1xH | X | X | X | O | X | X |
Read Sector(s) |
| 20/21H | O | O | O | O | O | X |
Read Long |
| 22/23H | O | O | O | O | O | X |
Write Sector(s) |
| 30/31H | O | O | O | O | O | X |
Write Long |
| 32/33H | O | O | O | O | O | X |
Write Verify |
| 3CH | O | O | O | O | O | X |
Read Verify Sector(s) |
| 40/41H | O | O | O | O | O | X |
Format Track |
| 50H | X | X | O | O | O | X |
Seek |
| 7xH | X | X | O | O | O | X |
Execute Diagnostics |
| 90H | X | X | X | O | X | X |
Initialize Device Parameters |
| 91H | O | X | X | O | O | X |
SMART |
| B0H | X | X | O | O | X | O |
Read Multiple |
| C4H | O | O | O | O | O | X |
Write Multiple |
| C5H | O | O | O | O | O | X |
Set Multiple Mode |
| C6H | O | X | X | O | X | X |
Read DMA |
| C8/C9H | O | O | O | O | O | X |
Write DMA |
| CA/CBH | O | O | O | O | O | X |
Power Control | E0 / 94H | O | X | X | O | X | X | |
| Idle Immediate | E1 / 95H | O | X | X | O | X | X |
| E2 / 96H | O | X | X | O | X | X | |
| Idle | E3 / 97H | O | X | X | O | X | X |
| Check Power Mode | E5 / 98H | O | X | X | O | X | X |
| Sleep | E6 / 99H | O | X | X | O | X | X |
Read Buffer |
| E4H | X | X | X | O | X | X |
Flush Cache |
| E7H | X | X | X | O | X | X |
Write Buffer |
| E8H | X | X | X | O | X | X |
Identify Device |
| ECH | X | X | X | O | X | X |
Set Features |
| EFH | X | X | X | O | X | O |
Security | Set Password | F1H | X | X | X | O | X | X |
| Unlock | F2H | X | X | X | O | X | X |
| Erase Prepare | F3H | X | X | X | O | X | X |
| Erase Unit | F4H | X | X | X | O | X | X |
| Freeze | F5H | X | X | X | O | X | X |
| Disable Password | F6H | X | X | X | O | X | X |
Read Native Max Address |
| F8H | X | X | X | O | X | X |
Set Max Address |
| F9H | O | O | O | O | O | X |
Note: O and X are defined as follows.
O = Must contain valid information for this command. X = Don't care for this command.
L = “0” indicates normal read/ write. “1” indicates Long command ( ECC Byte transfer ).
Parameters are defined as follows.
SC | = SECTOR COUNT register. |
SN | = SECTOR NUMBER register. |
CY | = CYLINDER LOW and CYLINDER HIGH register. |
DRV = DRIVE SELECT bit (bit 4 in DRIVE/HEAD register) | |
HD | = HEAD SELECT bits (bit |
FT | = FEATURES register (WRITE PRECOMPENSATION register) |
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