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

Processor-PCH eSPI Return Clock Support

In order to improve the eSPI bandwidth between the processor and the PCH, an eSPI return clock is added to increase the eSPI clock frequency up to 100 MHz. The processor Direct eSPI controller samples the return data using the return clock. The Direct eSPI interface supports 66 MHz, 80 MHz, and 100 MHz.