Intel® 800 Series Chipset Family Platform Controller Hub (PCH), Volume 2
ID | Date | Version | Classification |
---|---|---|---|
834576 | 10/10/2024 | 001 | Public |
PCI Power Management Capabilities (PMC) – Offset a2
This is the PCI Power Management Capabilities registers. Refer description for each individual field below for more details of the register functionality.
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
15:11 | 19h | RO | PME_Support (PMES) Indicates PME is supported for states D0, D3HOT and D3COLD. The root port does not generate PME, but reporting that it does is necessary for legacy Microsoft operating systems to enable PME in devices connected behind this root port. |
10 | 0h | RO | D2_Support (D2S) The D2 state is not supported. |
9 | 0h | RO | D1_Support (D1S) The D1 state is not supported. |
8:6 | 0h | RO | Aux_Current (AC) Reports 375mA maximum suspend well current required when in the D3COLD state. |
5 | 0h | RO | Device Specific Initialization (DSI) Indicates that no device-specific initialization is required. |
4 | 0h | RO | Reserved |
3 | 0h | RO | PME Clock (PMEC) Indicates that PCI clock is not required to generate PME. |
2:0 | 3h | RO | Version (VS) Indicates support for Revision 1.2 of the PCI Power Management Specification. |