307013-003 Datasheet, PDF (314/848 Pages) Intel Corporation – Intel I/O Controller Hub 7

LAN Controller Registers (B1:D8:F0) (Desktop and Mobile Only)
8.1.24
PCIDATA — PCI Power Management Data Register
(LAN Controller—B1:D8:F0)
Offset Address: E3h
Default Value: 00h
Attribute:
Size:
RO
8 bits
Bit
Description
7:0
Power Management Data (PWR_MGT) — RO. State dependent power consumption and
heat dissipation data.
The data register is an 8-bit read only register that provides a mechanism for the
ICH7’s integrated LAN controller to report state dependent maximum power
consumption and heat dissipation. The value reported in this register depends on the
value written to the Data Select field in the PMCSR register. The power measurements
defined in this register have a dynamic range of 0 W to 2.55 W with 0.01 W resolution,
scaled according to the Data Scale field in the PMCSR. The structure of the Data
Register is given in Table 8-3.
Table 8-3.
Data Register Structure
Data Select
0
1
2
3
4
5
6
7
Data Scale
2
2
2
2
2
2
2
2
8
2
9–15
0
Data Reported
D0 Power Consumption
D1 Power Consumption
D2 Power Consumption
D3 Power Consumption
D0 Power Dissipated
D1 Power Dissipated
D2 Power Dissipated
D3 Power Dissipated
Common Function Power
Dissipated
Reserved
314
Intel ^® ICH7 Family Datasheet