Intel® 400 Series Chipset On-Package Platform Controller Hub
Online Register Database
| ID | Date | Version | Classification |
|---|---|---|---|
| 615146 | 08/09/2019 | 1.2 | Public |
PCI Power Management Control and Status (PMCS) – Offset 74
PCI Power Management Control and Status
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 15 | 0h | RW/1C/V | PME Status (PMES) Bit is set when a PME event is to be requested, and if this bit and PMEE is set, a PME# will be generated from the SATA controller. |
| 14:9 | - | - | Reserved
|
| 8 | 0h | RW | PME Enable (PMEE) When set, the SATA controller asserts PME# when exiting D3HOT on a wake event. |
| 7:4 | - | - | Reserved
|
| 3 | 1h | RO | No Soft Reset (NSFRST) These bits are used to indicate whether devices transitioning from D3HOT state to D0 state will perform an internal reset. |
| 2 | - | - | Reserved
|
| 1:0 | 0h | RW | Power State (PS) These bits are used both to determine the current power state of the SATA controller and to set a new power state. |