Intel® Core™ Ultra 200S and 200HX Series Processors IOE-P I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 834823 | 01/29/2025 | 001 | Public |
Chipset initialization 1B4C (CPPMVRIC2) – Offset 1b4c
This register contains misc. configuration related to SLP_S0# control / VR Idle.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31 | 0h | RW | PCIe Root Ports Low Voltage Qualification Disable (PCIELVQDIS) 0 = SLP_S0# assertion requires all PCIe ports and their controllers to allow for Low Voltage mode entry. |
| 30 | 0h | RW | SATA Controller in D3 Qualification Disable (SATAD3QDIS) 0 = SLP_S0# assertion requires the SATA controller to be in D3 |
| 29 | 0h | RW | USB Device in D3 Qualification Disable (USBDEVD3QDIS) 0 = SLP_S0# assertion requires the USB Device controller to be in D3 |
| 28:26 | 0h | RO | Reserved |
| 25 | 1h | RW | Connectivity Vnn Request Qualification Disable (CNVIVNNREQQDIS) 0 = SLP_S0# assertion requires CNVi not to be requesting |
| 24 | 0h | RO | Reserved |
| 23 | 0h | RW | HPET 24MHz Clk Request Qualification Disable (HPET24CLKREQQDIS) 0 = SLP_S0# assertion requires the HPET 24MHz clkreq to be low |
| 22 | 0h | RW | Audio DSP ROSC Off Qualification Disable (ADSPROSCOFFQDIS) 0 = SLP_S0# assertion requires the Audio DSP ROSC to be off |
| 21 | 0h | RW | HSIO Core Power Gated Qualification Disable (MPHYCPGQDIS) 0 = SLP_S0# assertion requires all lanes of the HSIO Core Power Domain to be gated. |
| 20 | 0h | RW | USB2 PLL is off Qualification Disable (USB2PLLSDQDIS) 0 = SLP_S0# assertion requires the USB2 PLL to be shut down. |
| 19 | 0h | RW | Audio PLL is off Qualification Disable (APLLSDQDIS) 0 = SLP_S0# assertion requires the Audio PLL to be shut down. |
| 18 | 0h | RO | Reserved |
| 17 | 0h | RW | CPU in C10 Qualification Disable (CPUC10QDIS) 0 = SLP_S0# assertion requires the CPU to be in a C10 state. |
| 16:0 | 0h | RO | Reserved |