
4.5 ATA Commands
Table 4.19 Device parameter information (5/5)
Word | Value | Bits | Description |
|
|
|
|
87 | 4000h |
| Command set supported and whether the function is enabled or |
|
|
| disabled |
|
|
| (A value of less than 1 indicates that the command is |
|
|
| supported and enabled.) |
|
| 15 | 0b |
|
| 14 | 1b |
|
| Reserved | |
|
|
|
|
88 | 0007h | Ultra DMA transfer mode is active. | |
| (Default value) | Reserved (0b) | |
|
| 10 | Indicates 1 if mode 2 is selected. |
|
|
|
|
|
| 9 | Indicates 1 if mode 1 is selected. |
|
| 8 | Indicates 1 if mode 0 is selected. |
|
|
| Ultra DMA transfer mode is supported. |
|
|
|
|
|
| Reserved (0b) | |
|
| 2 | Mode 2 (1b) |
|
| 1 | Mode 1 (1b) |
|
| 0 | Mode 0 (1b) |
|
|
|
|
0000h |
| Reserved | |
|
|
|
|
127 | 0001h | Reserved | |
|
| 8 | Device protect |
|
|
| Indicates 1 in the |
|
|
|
|
|
|
| See Section 4.6.5.6, "Timer & Protect Page." |
|
| Reserved | |
|
| Media status notification function is supported (01b). | |
|
|
|
|
0000h |
| Reserved (0b) | |
|
|
|
|