Intel® 800 Series Chipset Family Platform Controller Hub (PCH), Volume 2
| ID | Date | Version | Classification |
|---|---|---|---|
| 834576 | 10/10/2024 | 001 | Public |
Power Management Capabilities (PC) – Offset 52
This register provides information on the capabilities of the function related to power management.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 15:11 | 18h | RO/V | PME Support (PMES) Indicates PME# can be generated from D3 states. |
| 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 | 1h | RO/V | Aux_Current (AC) Reports 55 mA maximum Primary 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 | Immediate Readiness on Return to D0 (IRR2D0) Not implemented. |
| 3 | 0h | RO | PME Clock (PMEC) Does not apply. Hardwired to 0. |
| 2:0 | 3h | RO | Version (VS) Indicates support for Revision 1.2 of the PCI Power Management Specification. |