Intel® Core™ Ultra 200S, Intel® Core™ Ultra 200S Plus ,Intel® Core™ Ultra 200HX and 200HX Plus Series Processors

Datasheet, Volume 1 of 2

ID Date Version Classification
832586 03/17/2026 Public
Document Table of Contents
LAM

Thermal Reporting to EC

To support a platform EC that is managing the system thermals, the processor provides the ability for the EC to read the processor temperature over SMBus and/or over eSPI. If enabled, Power Management will drive the temperature directly to the SMBus and eSPI units. The EC will issue an SMBus read or eSPI OOB Channel request and receives a single byte of data, indicating a temperature between 0°C and 127°C, where 255 (0xFF) indicates that the sensor isn’t enabled yet. The EC must be connected to either SMLink1 or eSPI for thermal reporting support.