Intel® Core™ Ultra 200V Series Processors

Datasheet, Volume 1 of 2

ID Date Version Classification
829568 05/27/2025 004 Confidential
Document Table of Contents

PECI Over eSPI

When PECI Over eSPI is enabled, the eSPI device (i.e. EC) can access the processor PECI via eSPI controller. The support improves the PECI commands responsiveness via PECI Over eSPI.

PECI over eSPI is not supported in Sx state. EC/BMC is not allowed to send the PECI command to eSPI in Sx states. More specifically, EC can only send PECI requests after VW PLT_​RST# de-assertion.

In S0ix, upon receiving a PECI command, the PMC will wake up the Processor from Cx and respond back once the data is available from Processor.