3Ultra DMA mode 3 is supported.
4Ultra DMA mode 4 is supported.
5Ultra DMA mode 5 is supported
6Ultra DMA mode 6 is supported
8Ultra DMA mode 0 is currently active.
9Ultra DMA mode 1 is currently active.
10Ultra DMA mode 2 is currently active.
11Ultra DMA mode 3 is currently active.
12Ultra DMA mode 4 is currently active.
13Ultra DMA mode 5 is currently active.
14Ultra DMA mode 6 is currently active.
Bit | Word 93 |
131 =
4.3.2Set Features command
This command controls the implementation of various features that the drive supports. When the drive receives this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an inter- rupt. If the value in the register does not represent a feature that the drive supports, the command is aborted.
Table 8: Set Features command values
02H | Enable write cache (default). | |
03H | Set transfer mode (based on value in Sector Count register). | |
| Sector Count register values: | |
| 00H | Set PIO mode to default (PIO mode 2). |
| 01H | Set PIO mode to default and disable IORDY (PIO mode 2). |
| 08H | PIO mode 0 |
| 09H | PIO mode 1 |
| 0AH | PIO mode 2 |
| 0BH | PIO mode 3 |
| 0CH | PIO mode 4 (default) |
| 20H | Multiword DMA mode 0 |
| 21H | Multiword DMA mode 1 |
| 22H | Multiword DMA mode 2 |
| 40H | Ultra DMA mode 0 |
| 41H | Ultra DMA mode 1 |
| 42H | Ultra DMA mode 2 |
| 43H | Ultra DMA mode 3 |
| 44H | Ultra DMA mode 4 |
Momentus 5400.6 SATA Product Manual, Rev. A | 29 |
