Intel CONTROLLERS 413808 - Manual (Page 368)

Intel
®
413808 and 413812—Address Translation Unit (PCI Express)
Intel ® 413808 and 413812 I/O Controllers in TPER Mode
Developer’s Manual October 2007
368 Order Number: 317805-001US
3.17.89 Power Budgeting Data Register - PWRBGT_DATA
This read-only register returns the DWORD of Power Budgeting Data selected by the
Data Select Register. The values of one of the Power Budgeting Information
Registers[0:23]—PWRBGT_INFO[0:23] is returned when this register is read.
Table 229. Power Budgeting Data Register - PWRBGT_DATA
Bit Default Description
31:21 000H Preserved
20:18 000
Power Rail - Specifies the power rail of the operating condition being described. Defined encodings are:
000 Power (12V)
001 Power (3.3V)
010 Power (1.8V)
111 Thermal
All other encodings are reserved.
17:15 000
Type - Specifies the type of operating condition being described. Defined encodings are:
000 PME Aux
001 Auxiliary
010 Idle
011 Sustained
111 Maximum
All other encodings are reserved.
14:13 000
PM State - Specifies the power management state of the operating condition being described.
00 D0
01 D1
10 D2
11 D3
A device returns 11b in this field and Aux or PME Aux in the Type register to specify the D3-Cold PM
state. An encoding of 11b with any other Type register value specifies the D3-Hot state.
12:10 000
PM Sub State - Specifies the power management sub state of the operating condition being described.
000Default Sub State
001 - 111Device Specific Sub State
9:8 00
Data Scale - Specifies the scale to apply to the Base Power Value. Defined encodings are:
00 1.0x
01 0.1x
10 0.01x
11 0.001x
7:0 00H
Base Power - Specifies in watts the base power value in the given operating condition. This value must
be multiplied by the data scale to produce the actual power consumption value.
PCI
IOP
Attributes
Attributes
28 24 20 16 12 8 4 0 31
pr
pr
pr
pr
pr
pr
pr
pr
pr
pr
pr
pr
pr
pr
pr
pr
pr
pr
pr
pr
pr
pr
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
ro
Attribute Legend:
RZ = Reserved Zero
PR = Preserved
RS = Read/Set
RW = Read/Write
RC = Read Clear
RO = Read Only
NA = Not Accessible
Internal Bus Address Offset
+1F8H