Interface
5.2.3.7 Data - Host to Device or Device to Host (Bidirectional)
This Data FIS has the following layout:
| 3 | 3 |
| 2 | 2 | 2 | 2 |
| 2 | 2 | 2 | 2 |
| 2 | 2 | 1 |
| 1 |
| 1 | 1 | 1 | 1 | 1 |
| 1 | 1 | 1 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 1 | 0 |
| 9 | 8 | 7 | 6 |
| 5 | 4 | 3 | 2 |
| 1 | 0 | 9 |
| 8 |
| 7 | 6 | 5 | 4 | 3 |
| 2 | 1 | 0 |
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0 |
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| Reserved (0) |
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| Reserved (0) |
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| R | R | R |
| Reserved (0) |
| FIS Type (46h) |
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| N Dwords of data |
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… |
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| (1 to 2048 Dwords) |
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Figure 5.8 Data FIS (Bidirectional) layout
The Data FIS is used for data transfers between the host system and device.