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 (KT_CSXE_PMD_PMCSRBSE_PMCSR) – Offset 54
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
30:4 | - | - | Reserved
|
3 | 1b | RO | No Soft Reset (NSR) When set to 1, this bit indicates that devices transitioning from D3hot to D0 because of PowerState commands do not perform an internal reset. Configuration Context is preserved. Upon transition from the D3hot to the D0 Initialized state, no additional operating system intervention is required to preserve Configuration Context beyond writing the PowerState bits. |
2 | - | - | Reserved
|
1:0 | 00b | RW | Power State (PWRST) This 2-bit field is used both to determine the current power state of a function and to set the function into a new power state. The definition of the field values is given below: |