12th Generation Intel® Core™ Processor Datasheet Volume 2 of 2
ID | Date | Version | Classification |
---|---|---|---|
767626 | 07/13/2023 | 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 | 0x0 | RO | PME Support (PMES) This field indicates the power states in which the IGD may assert PME#. Hardwired to 0 to indicate that the IGD does not assert the PME# signal. |
10 | 0x0 | RO | D2 Support (D2) Hardwired to 0 to indicate the D2 power management state is not supported. |
9 | 0x0 | RO | D1 Support (D1) Hardwired to 0 to indicate that the D1 power management state is not supported. |
8:6 | 0h | RO | Reserved |
5 | 0x1 | RO | Device Specific Initialization (DSI) Hardwired to 1 to indicate that special initialization of the IGD is required before generic class device driver is to use it. |
4 | 0h | RO | Reserved |
3 | 0x0 | RO | PME Clock (PMECLK) Hardwired to 0 to indicate IGD does not support PME# generation. |
2:0 | 0x2 | RO | Power Management Interface Version (VER) Hardwired to 010b to indicate that there are 4 bytes of power management registers implemented and that this device complies with revision 1.1 of the PCI Power Management Interface Specification. |