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

A newer version of this document is available.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

Document Table of Contents

PECI Bus Architecture

The PECI architecture is based on a wired-OR bus that the clients (as processor PECI) can pull up (with the strong drive).

The idle state on the bus is ‘0’ (logical low) and near zero (Logical voltage level).

Note:PECI supported frequency range is 100 Khz-1 MHz.

The following figures demonstrate PECI design and connectivity:

  • PECI Host-Clients Connection: While the host/originator can be third party PECI host and one of the PECI clients is a processor PECI device.
  • PECI EC Connection.

PECI Host-Clients Connection Example

PECI EC Connection Example