Intel® Core™ Ultra 200H and 200U Series Processors CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 844345 | 01/29/2025 | 001 | Public |
Temperature Target (TEMPERATURE_TARGET_0_0_0_MCHBAR_PCU) – Offset 599c
Legacy register holding temperature related constants for Platform use.
NOTE: Lock bit will only block certain SAI values (POSTBOOT, UCODE, SMM, SUNPASS, BOOT)
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31 | 0h | RW/L | (LOCKED) When set, this entire register becomes read-only. |
| 30:24 | 0h | RO/V | TjMax Tcc Offset (TJ_MAX_TCC_OFFSET) Temperature offset in degrees (C) from the TjMax. Used for throttling temperature. |
| 23:16 | 0h | RO/V | Thermal Junction Maximum Temperature (TJMAX) This field indicates the maximum junction temperature, also referred to as the Throttle |
| 15:8 | 0h | RO/V | Fan Temperature Offset (FAN_TEMP_TARGET_OFST) Fan Temperature Target Offset (a.k.a. T-Control) indicates the relative offset from the Thermal Monitor Trip Temperature at which fans should be engaged. |
| 7:0 | 0h | RO | Reserved |