12th Generation Intel® Core™ Processors

Datasheet, Volume 1 of 2

ID Date Version Classification
655258 05/30/2022 Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

On-Demand Mode

The processor provides an auxiliary mechanism that allows system software to force the processor to reduce its power consumption using clock modulation. This mechanism is referred to as “On-Demand” mode and is distinct from Adaptive Thermal Monitor and bi-directional PROCHOT#. The processor platforms should not rely on software usage of this mechanism to limit the processor temperature. On-Demand Mode can be accomplished using processor MSR or chipset I/O emulation. On-Demand Mode may be used in conjunction with the Adaptive Thermal Monitor. However, if the system software tries to enable On-Demand mode at the same time the TCC is engaged, the factory configured the duty cycle of the TCC will override the duty cycle selected by the On-Demand mode. If the I/O based and MSR-based On-Demand modes are in conflict, the duty cycle selected by the I/O emulation-based On-Demand mode will take precedence over the MSR-based On-Demand Mode.