Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
ID | Date | Version | Classification |
---|---|---|---|
615146 | 08/09/2019 | 1.2 | Public |
Power Management Control And Status (PCS) – Offset 54
Power Management Control And Status
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
30:23 | - | - | Reserved
|
22 | 0b | RO | B2/B3 Support (B23) Does not apply. Hardwired to 0. |
21:16 | - | - | Reserved
|
15 | 0b | RO | PME Status (PMES) This bit is always zero, since this PCI Function does not generate PME# |
14:9 | - | - | Reserved
|
8 | 0b | RO | PME Enable (PMEE) This bit is always zero, since this PCI Function does not generate PME# |
7:4 | - | - | Reserved
|
3 | 1b | RO | No Soft Reset (NOSOFTRST) ), this bit indicates that devices transitioning from D3HOT to D0 becuase of PowerState commands do not perform an internal reset. Configuration context is preserved. Upon transition from D3HOT to D0 initialized state, no additional operating system intervention is required to preserve Configuration Context beyong writing the PowerState bits. |
2 | - | - | Reserved
|
1:0 | 00b | RW | Power State (PS) This field is used both to determine the current power state of the Thermal controller and to set a new power state. The values are: |