Pci Initialization Control (Word 0Ah); Subsystem Id (Word 0Bh); Subsystem Vendor Id (Word 0Ch); Pci Initialization Control Word (Word 0Ah) - Intel 8 LAN Information Manual

ICH8—NVM Information Guide
1.4.8

PCI Initialization Control (Word 0Ah)

This word contains initialization values that:
• Set defaults for some internal registers.
• Enable/disable specific features.
• Determine which PCI configuration space values are loaded from the NVM.
Table 8.

PCI Initialization Control Word (Word 0Ah)

Bit
15:13 Reserved
12 Reserved
11:8 Reserved
7 AUX PWR
6 PM-Ena
5:3 Reserved
2 APM Enable
1 Load Subsystem IDs
Load Vendor/Device
0
IDs
1.4.9

Subsystem ID (Word 0Bh)

If Load Subsystem IDs bit of word 0Ah is set to 1b, this word is read in to initialize the
Subsystem ID. The Subsystem ID default value is 0000h.
1.4.10

Subsystem Vendor ID (Word 0Ch)

If Load Subsystem IDs bit of word 0Ah is set to 1b, this word is read in to initialize the
Subsystem Vendor ID. The Subsystem Vendor ID default value is 8086h.
Name Default
000b This field is reserved and should be set to 000b.
1b This field is reserved and should be set to 1b.
0000b These bits are reserved and should be set to 0000b.
This bit is used as an auxiliary power indication. It is used in
conjunction with the PM Enable bit.
1b 0b = D3cold wake-up is not advertised.
1b = D3cold wake-up is advertised in the PMC register of the PCI
function if the PM Enable bit is also set.
This bit enables the assertion of a PME in the PCI function at any
power state.
0b = PME functionality is disabled.
1b
1b = PME functionality is enabled.
This bit affects the advertised PME_Support indication in the PMC
register of the PCI function.
00b This bit is reserved and should be set to 00b.
When APM Enable is set, both the PHY (82566 or 82562V) and
the MAC should be initialized to a functional state following power
up.
1b
0b = APM functionality is disabled.
1b = APM functionality is enabled.
Note: This is a reserved bit for the ICH8 (B1 stepping).
0b = Device loads the default PCI Subsystem ID and Subsystem
Vendor ID.
1b
1b = Device loads its PCIe* Subsystem ID and Subsystem Vendor
ID from the NVM (words 0Bh and 0Ch).
0b = Device loads the default PCI Vendor and Device IDs.
1b
1b = Device loads the default values for PCI Vendor and Device IDs
from the NVM (words 0Dh and 0Eh).
Description
11