Intel® Core™ Ultra 200H and 200U Series Processors CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 844345 | 01/29/2025 | 001 | Public |
Power Management Capabilities (PMCAP_0_2_0_PCI) – Offset d2
This register provides information on the capabilities of the function related to powermanagement.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 15:11 | 9h | RO | PME Support (PMES) This field indicates the power states in which the IGD may assert PME#. Hardwired to 01001 to indicate we support sending out PME messages when device is in D3hot or D0. |
| 10 | 0h | RO | D2 Support (D2) Hardwired to 0 to indicate the D2 power management state is not supported. |
| 9 | 0h | RO | D1 Support (D1) Hardwired to 0 to indicate that the D1 power management state is not supported. |
| 8:6 | 0h | RO | Reserved |
| 5 | 0h | RO | Device Specific Initialization (DSI) Hardwired to 0 to indicate that special initialization of the IGD is not required before generic class device driver is to use it. |
| 4 | 0h | RO | Reserved |
| 3 | 0h | RO | PME Clock (PMECLK) Hardwired to 0 to indicate IGD does not support PME# generation. |
| 2:0 | 3h | RO | Power Management Interface Version (VER) Hardwired to 011b to indicate that there are 4 bytes of power management registers implemented and that this device complies with revision 1.2 of the PCI Power Management Interface Specification. |