120 Intel® 41210 Serial to Parallel PCI Bridge Developer’s Manual

Register Description
12.2.67 Offset 300h: PWRBGT_CAPID—Power BudgetingEnhanced Capability Header

This register defines the capability identifier.

12.2.68 Offset 304h: PWRBGT_DSEL—Power BudgetingData Select Register12.2.69 Offset 308h: PWRBGT_DATA—Power Budgeting Data
Register
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Table 101. Offset 300h: PWRBGT_HDR—Power Budgeting Enhanced Capability Header

Bits Type Reset Description
31:20 RO 000h N ext PCI Express* Extended Capability Pointer: This field indicates the last capability.
19:16 RO 1h Power Budgeting Capability Version Number: This field indicates the PCI Express*
Power Budgeting Capability Version Number.
15:0 RO 0004h Power Budgeting Capability ID: This field indicates the Advanced Error Reporting
Capability.

Table 102. Offset 304h: PWRBGT_DSEL—Power Budgeting Data Select Register

Bits Type Reset Description
7:0 RW 00h
Data Select: This read-write register indexes the reported through the Data Register
(“Offset 308h: PWRBGT_DATA—Power Budgeting Data Register” on page120) and selects
the Dword of the power budgeting data that must appear in the Data Register.
The index values for this register start at 0 to select the first DWord of the power budgeting
data; subsequent DWords of the power budgeting data are selected by increasing index
values. For example:
• A value of 0 selects the DWord data starting at address 314 h to appear in the Data
Register at offset 308h.
• A value of 1 selects the DWord data starting at address 318h to appear in the Data
Register.
• (and so on)
When the Data Select field values is greater than 23, all zeros are reported in the Data
Register.

Table 103. Offset 308h: PWRBGT_DATA—Power Budgeting Data Register

Bits Type Reset Description
31:0 RO 0000 0000h
Data: This read-only register returns the DWord of the power budgeting data selected by the
Data Select Register (“Offset 304h: PWRBGT_DSEL—Power Budgeting Data Select
Register” on page 120). The Intel® 41210 Serial to Parallel PCI Bridge reports its power
consumption for PM states D0, D3; types idle, sustained, maximum; power rails 1.2 V, 3.3 V,
1.8 V, Thermal.