Intel® Core™ Ultra 200V Series Processors CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 831649 | 03/30/2026 | 001 | Public |
SA_PERF_STATUS0 (SA_PERF_STATUS0_0_0_0_MCHBAR_PCU) – Offset 5918
System Agent Performance status. Indicates current various System Agent PLL ratios.
Operting frequency needs to be calculated according to reference clock (BCLK).
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 63:62 | 0h | RO | Reserved |
| 61:46 | 0h | RO/V/P | sa perf status0 (SA_VOLTAGE) This register holds the System Agent voltage. In dies in which SA volatge is connected to external VR then this field is not supported. |
| 45:41 | 2h | RO/V | sa perf status0 (SYSTEM_CACHE_DIV_DENOMINATOR) System Cache clock value, represented as the Qclk divider denominator. |
| 40:28 | 0h | RO | Reserved |
| 27:20 | 0h | RO/V | sa perf status0 (IPU_PS_RATIO) IPU processing system (PS) ratio in 25MHz granularity for FLL mode (default). |
| 19:12 | 0h | RO/V | sa perf status0 (IPU_IS_RATIO) IPU input system (IS) ratio in 16.667MHz. This ratio is translated to clock divider by CCU. |
| 11:10 | 0h | RO/V | sa perf status0 (GEAR) Memory Gear: |
| 9:2 | 0h | RO/V | sa perf status0 (QCLK_RATIO) DDR QCLK RATIO. Reference is granularity of 33.33MHz. |
| 1:0 | 0h | RO/V | sa perf status0 (LAST_DE_WP_REQ_SERVED) Last DE workpoint request served by Pcode |