Intel® 800 Series Chipset Family Platform Controller Hub (PCH), Volume 2
| ID | Date | Version | Classification |
|---|---|---|---|
| 834576 | 10/10/2024 | 001 | Public |
Capabilities List and Power Managment Capabilities Register (PM0) – Offset c8
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:27 | 0h | RW/V | PME_SUPPORT (PME_SUPPORT)
|
| 26 | 0h | RW/V | D2_SUPPORT (D2_SUPPORT) Hardwired to 0. |
| 25 | 0h | RW/V | D1_SUPPORT (D1_SUPPORT) Value of D0h indicates the location of the next pointer. |
| 24:22 | 0h | RW/V | AUX_CURRENT (AUX_CURRENT) The D2 state is not supported. |
| 21 | 1h | RW/V | Device Specific Initialization (DSI) This five-bit field indicates the power states in which the function may assert PME#. It depend on PM Ena and AUX-PWR bits in word 0Ah in the NVM: |
| 20 | 0h | RW/V | Reserved (Reserved)
|
| 19 | 0h | RW/V | PME Clock (PME_CLK) Hardwired to 010b to indicate support for Revision 1.1 of the PCI Power Management Specification. |
| 18:16 | 3h | RW/V | Version (VER)
|
| 15:8 | d0h | RW/V | Next Capability (NEXT_ITEM_PTR)
|
| 7:0 | 1h | RW/V | Capability ID (CAP_ID) Set to 1. The GbE LAN Controller requires its device driver to be executed following transition to the D0 un-initialized state. |