Intel® Core™ Ultra Processor

Datasheet, Volume 1 of 2
Supporting Intel® Core™ Ultra Processor for U/H/U-Type4-series Platforms, formerly known as Meteor Lake

ID Date Version Classification
792044 03/05/2024 Public

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Document Table of Contents

PROCHOT Demotion

PROCHOT Demotion is designed to improve system performance following multiple Platform PROCHOT consecutive assertions. During each PROCHOT assertion processor will eventually transition to the lowest P-State (Pn) supported by the processor IA cores and graphics cores (LFM). When detecting several PROCHOT consecutive assertions the processor will reduce the max frequency in order to reduce the PROCHOT assertions events. The processor will keep reducing the frequency until reaching LFM, the processor can further reduce the frequency using clock dilution (change in the duty cycle) until no PROCHOT consecutive assertions detected. The processor will keep reducing the frequency until no consecutive assertions detected. The processor will raise the frequency if no consecutive PROCHOT assertion events will occur. PROCHOT demotion algorithm enabled only when the PROCHOT is configured as input.