Intel® Core™ Ultra 200H and 200U Series Processors SOC I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 844346 | 01/29/2025 | 001 | Public |
AUX Power Management Control (AUX_CTRL_REG1) – Offset 80e0
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31 | 1h | RW | D3 Hot function enable register (D3_HOT_FXN_EN) This bit is from pin input which is set 1. But we allow software to alter it if it is needed. |
| 30 | 0h | RW | Allow L1 Core Clock Gating (ALL_L1_CORE_CG) When set to 1 allows core clock being gated during L1 state. |
| 29:17 | 0h | RO | Reserved |
| 16 | 0h | RW | Clock Gate Disable (CCGD) 1: Disable USB3 port clock gating |
| 15:13 | 0h | RO | Reserved |
| 12 | 1h | RW | Enable Host Engine Generate PME (EN_HE_GEN_PME) This is a global switch to whether or not eable this host engine to generate PME message. |
| 11 | 1h | RW | Enable Isolation (EN_ISOL) When set to '1' enable isolation |
| 10 | 0h | RO | Reserved |
| 9 | 0h | RW | Enable Core Clock Gating (EN_CORE_CG) When set to '1' disable core clock gating based on low power state entered |
| 8:5 | 0h | RO | Reserved |
| 4:1 | 0h | RW | Forced PM State (FORCED_PM_STATE) Forced PM state |
| 0 | 0h | RW | Initiate Force PM State (INIT_FPMS) When set to '1' force PM state to go to the state indicated in bit 4:1 |