![](/images/new-backgrounds/1106390/106390193x1.webp)
4.5 ATA Commands
Table 4.19 Device parameter information (3/5)
Word | Value | Bits | Description |
|
|
|
|
72 | 03E8h (1000) |
| Required time after the SERVICE command is received until |
|
|
| BSY is cleared (∝ s) (Typical) |
|
|
|
|
0000h |
| Reserved | |
|
|
|
|
80 | 0010h |
| Major Version number |
|
|
|
|
81 | 0000h |
| Minor Version number |
|
|
|
|
82 | 4278h |
| Command set supported |
|
|
| (A value of less than 1 indicates that the command is |
|
|
| supported.) |
|
| 15 | IDENTIFY DEVICE DMA command (0b) |
|
| 14 | NOP command (1b) |
|
|
|
|
|
| 13 | READ BUFFER command (0b) |
|
| 12 | WRITE BUFFER command (0b) |
|
| 11 | WRITE VERIFY command (0b) |
|
| 10 | Host protect area function (0b) |
|
|
|
|
|
| 9 | DEVICE RESET command (1b) |
|
| 8 | SERVICE command interrupt (0b) |
|
| 7 | Interrupt at release (0b) |
|
|
|
|
|
| 6 | Read ahead cache (1b) |
|
| 5 | Write cache (1b) |
|
| 4 | Packet command function (1b) |
|
|
|
|
|
| 3 | Power management function (1b) |
|
| 2 | Removable media function (0b) |
|
| 1 | Security mode (0b) |
|
| 0 | SMART function (0b) |
|
|
|
|
83 | 4000h |
| Command set supported |
|
|
| (A value of less than 1 indicates that the command is |
|
|
| supported.) |
|
| 15 | 0b. |
|
| 14 | 1b |
|
| Reserved | |
|
|
|
|
|
| 0 | DOWNLOAD MICROCODE command supported (0b) |
|
|
|
|
84 | 4000h |
| Command set supported |
|
| 15 | 0b |
|
|
|
|