Intel® Core™ Ultra 200V Series Processors CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 831649 | 03/30/2026 | 001 | Public |
(PACKAGE_RAPL_LIMIT_0_0_0_MCHBAR_PCU) – Offset 59a0
The Integrated Graphics driver, CPM driver, BIOS and OS can balance the power budget between the Primary Power Plane (IA) and the Secondary Power Plane (GT) via PRIMARY_PLANE_TURBO_POWER_LIMIT_MSR and SECONDARY_PLANE_TURBO_POWER_LIMIT_MSR.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 63 | 0h | RW/L | (PKG_PWR_LIM_LOCK) When set, all settings in this register are locked and are treated as Read Only. |
| 62:56 | 0h | RO | Reserved |
| 55:49 | 0h | RW/L | (PKG_PWR_LIM_2_TIME) x = PKG_PWR_LIM_2_TIME[55:54] |
| 48 | 0h | RW/L | (PKG_CLMP_LIM_2) Package Clamping limitation #2 - Allow going below P1. |
| 47 | 0h | RW/L | (PKG_PWR_LIM_2_EN) This bit enables/disables PKG_PWR_LIM_2. |
| 46:32 | 0h | RW/L | (PKG_PWR_LIM_2) This field indicates the power limitation #2. |
| 31:24 | 0h | RO | Reserved |
| 23:17 | 0h | RW/L | (PKG_PWR_LIM_1_TIME) x = PKG_PWR_LIM_1_TIME[23:22] |
| 16 | 0h | RW/L | (PKG_CLMP_LIM_1) Package Clamping limitation #1 - Allow going below P1. |
| 15 | 0h | RW/L | (PKG_PWR_LIM_1_EN) This bit enables/disables PKG_PWR_LIM_1. |
| 14:0 | 0h | RW/L | (PKG_PWR_LIM_1) This field indicates the power limitation #1. |