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 (PMECTRLSTATUS) – Offset 84
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 30:16 | - | - | Reserved
|
| 15 | 0h | RW/1C | PME Status (PMESTATUS)
|
| 14:9 | - | - | Reserved
|
| 8 | 0h | RW | PME Enable (PMEENABLE) 0 = PME message is disabled |
| 7:4 | - | - | Reserved
|
| 3 | 1h | RO | No Soft Reset (NO_SOFT_RESET) This bit indicates that devices transitioning from D3hot to D0 because of Powerstate commands do not perform an internal reset |
| 2 | - | - | Reserved
|
| 1:0 | 0h | RW | Power State (POWERSTATE) This field is used both todetermine the current power state and to set a new power state.The values are:00 = D0 state11 = D3HOT stateOthers = ReservedNotes: If software attempts to write a value of 01b or 10b in to this field,the data is discarded and no state change occurs. When in the D3HOT states, interrupts are blocked. |