TPH ST Table @0x280

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.

Table 1. i_TPH_tab_0
Bits SW Name Description Reset
7:0 R/W ST Lower 0 [STL0] Lower 8 bits of the first Steering Tag. This is the 8-bit Steering Tag sent out in requests. 0x0
15:8 R ST Upper 0 [STU0] This field is used for the upper 8 bits of the first Steering Tag when Extended TPH Requester support is enabled. 0x0
23:16 R/W ST Lower 1 [STL1] Lower 8 bits of the second Steering Tag. This is the 8-bit Steering Tag sent out in requests. 0x0
31:24 R ST Upper 1 [STU1] This field is used for the upper 8 bits of the second Steering Tag when Extended TPH Requester support is enabled. 0x0