Intel® 800 Series Chipset Family Platform Controller Hub (PCH), Volume 2
| ID | Date | Version | Classification |
|---|---|---|---|
| 834576 | 10/10/2024 | 001 | Public |
Power Management Data, Control/Status Register Bridge Support Extensions, Control And Status (KT_HOST_PMD_PMCSRBSE_PMCSR) – Offset 54
This register contains the power management data, control and status register bridge support extensions, control and status registers.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:24 | 0h | RO | Data (DATA) Not implemented. Hardwired to 0. |
| 23:16 | 0h | RO | Control/Status Register Bridge Support Extensions (CSRBSE) Not implemented. Hardwired to 0. |
| 15 | 0h | RO | PME Status (PMESTS) Not implemented. Hardwired to 0. |
| 14:13 | 0h | RO | Data Scale (DS) Not implemented. Hardwired to 0. |
| 12:9 | 0h | RO | Data Select (DSEL) Not implemented. Hardwired to 0. |
| 8 | 0h | RO | PME Enable (PMEEN) Not implemented. Hardwired to 0. |
| 7:4 | 0h | RO | Reserved (RSVD1)
|
| 3 | 1h | RO | No Soft Reset (NSR) When set to 1, this bit indicates thatdevices transitioning from D3hot to D0 because of PowerState commands do not perform an internal reset. |
| 2 | 0h | RO | Reserved (RSVD0)
|
| 1:0 | 0h | 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: |