Intel® Core™ Ultra Series 3 Processors I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 872352 | 04/14/2026 | 001 | Public |
PGD PG_REQ Status Register 0 (PPRSR0) – Offset 1de0
PGD PG REQ Status Register 0
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31 | 0h | RO/V | CSME Power Gate ACK Status (AGT31_PG_REQ_STS) Same description as bit 0. |
| 30 | 0h | RO/V | Controller Link Power Gate ACK Status (AGT30_PG_REQ_STS) Same description as bit 0. |
| 29 | 0h | RO/V | CSME Power Gate ACK Status (AGT29_PG_REQ_STS) Same description as bit 0. |
| 28 | 0h | RO/V | CSME-KVM Power Gate ACK Status (AGT28_PG_REQ_STS) Same description as bit 0. |
| 27 | 0h | RO/V | CSME Power Gate ACK Status (AGT27_PG_REQ_STS) Same description as bit 0. |
| 26:25 | 0h | RO | Reserved |
| 24 | 0h | RO/V | PSF Power Gate ACK Status (AGT24_PG_REQ_STS) Same description as bit 0. |
| 23:22 | 0h | RO | Reserved |
| 21 | 0h | RO/V | PCIe Controller E Power Gate ACK Status (AGT21_PG_REQ_STS) Same description as bit 0. |
| 20 | 0h | RO | Reserved |
| 19 | 0h | RO/V | Intel Trace Hub Power Gate ACK Status (AGT19_PG_REQ_STS) Same description as bit 0. |
| 18 | 0h | RO | Reserved |
| 17 | 0h | RO/V | ISH Power Gate ACK Status (AGT17_PG_REQ_STS) Same description as bit 0. |
| 16 | 0h | RO/V | SMBus Power Gate ACK Status (AGT16_PG_REQ_STS) Same description as bit 0. |
| 15 | 0h | RO | Reserved |
| 14 | 0h | RO/V | Intel Serial I/O Power Gate ACK Status (AGT14_PG_REQ_STS) Same description as bit 0. |
| 13 | 0h | RO | Reserved |
| 12 | 0h | RO/V | Intel Partner Security Engine Power Gate ACK Status (AGT12_PG_REQ_STS) Same description as bit 0. |
| 11:8 | 0h | RO | Reserved |
| 7 | 0h | RO/V | GbE Power Gate ACK Status (AGT7_PG_REQ_STS) Same description as bit 0. |
| 6 | 0h | RO | Reserved |
| 5 | 0h | RO/V | PCIe Controller B Power Gate ACK Status (AGT5_PG_REQ_STS) Same description as bit 0. |
| 4 | 0h | RO/V | PCIe Controller A Power Gate ACK Status (AGT4_PG_REQ_STS) Same description as bit 0. |
| 3 | 0h | RO/V | xHCI Power Gate ACK Status (AGT3_PG_REQ_STS) Same description as bit 0. |
| 2 | 0h | RO/V | eSPI/SPI Power Gate ACK Status (AGT2_PG_REQ_STS) Same description as bit 0. |
| 1 | 0h | RO | Reserved |
| 0 | 0h | RO/V | PMC Power Gate ACK Status (AGT0_PG_REQ_STS) 0: Agent is requesting to be power-gated |