82801CA Datasheet, PDF (244/521 Pages) Intel Corporation – I/O Controller Hub 3-S (ICH3-S)

LAN Controller Registers (B1:D8:F0)
7.1.24
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 State dependent power consumption and heat dissipation data.
Note:
The data register is an 8-bit read only register that provides a mechanism for the ICH3’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 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 7-3 below.
Table 7-3. Data Register Structure
Data Select
0
1
2
3
4
5
6
7
8
9–15
Data Scale
2
2
2
2
2
2
2
2
2
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
244
Intel^® 82801CA ICH3-S Datasheet