The DEVICE CONFIGURATION IDENTIFY command returns a 512 byte data structure via PIO
The format of the Device Configuration Overlay data structure is shown in Table
Table
Word |
|
|
| Content |
0 | Data structure revision | |||
1 | Multiword DMA modes supported | |||
|
| Reserved | ||
| 2 |
| 1 | = Multiword DMA mode 2 and below are supported |
| 1 |
| 1 | = Multiword DMA mode 1 and below are supported |
| 0 |
| 1 | = Multiword DMA mode 0 is supported |
2 | Ultra DMA | modes supported | ||
|
| Reserved | ||
| 5 |
| 1 | = Ultra DMA mode 5 and below are supported |
| 4 |
| 1 | = Ultra DMA mode 4 and below are supported |
| 3 |
| 1 | = Ultra DMA mode 3 and below are supported |
| 2 |
| 1 | = Ultra DMA mode 2 and below are supported |
| 1 |
| 1 | = Ultra DMA mode 1 and below are supported |
| 0 |
| 1 | = Ultra DMA mode 0 is supported |
Maximum LBA address | ||||
7 | Command set/feature set supported | |||
|
| Reserved | ||
| 8 |
| 1 | = |
| 7 |
| 1 | = Host Protected Area feature set supported |
| 6 |
| 1 | = Automatic acoustic management supported |
| 5 |
| 1 | = READ/WRITE DMA QUEUED commands supported |
| 4 |
| 1 | = |
| 3 |
| 1 | = Security feature set supported |
| 2 |
| 1 | = SMART error log supported |
| 1 |
| 1 | = SMART |
| 0 |
| 1 | = SMART feature set supported |
Reserved |
|
|
| |
255 | Integrity word |
|
| |
|
| Checksum | ||
|
| Signature |
Word 0 shall contain the value 0001h.
11.8.45.3.1.2 Word 1: Multiword DMA modes supportedWord 2 bits
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