TPH ST Table @0x28c
This table stores the Steering Tags for the TPH Capability. This table has eight entries per Function, each 16 bits long. Two of these entries occupy each 32-bit word of the table. Each of the entries can be read/written through the link (by a Configuration transaction) or through the local management bus. The format of each register is shown below.
| Bits | SW | Name | Description | Reset |
|---|---|---|---|---|
| 7:0 | R/W | ST 0 Lower [ST0L] | Lower eight bits of the first Steering Tag. This is the 8- bit Steering Tag sent out in requests. | 0x0 |
| 15:8 | R | ST 0 Upper [ST0U] | This field is used for the upper eight bits of the first Steering Tag when Extended TPH Requester support is enabled. | 0x0 |
| 23:16 | R/W | ST 1 Lower [ST1L] | Lower eight bits of the second Steering Tag. This is the 8-bit Steering Tag sent out in requests. | 0x0 |
| 31:24 | R | ST 1 Upper [ST1U] | This field is used for the upper eight bits of the second Steering Tag when Extended TPH Requester support is enabled. | 0x0 |