13th Generation Intel® Core™ and Intel® Core™ 14th Generation Processors

Datasheet, Volume 1 of 2
Supporting 13th Generation Intel® Core™ Processor for S, H, P, HX, and U Processor Line Platforms, formerly known as Raptor Lake, Intel® Core™ 14th Generation Processor for S, HX, and U Processor Line Platform, formerly known as Raptor Lake Refresh and Intel® Xeon™ E 2400 Processor, formerly known As Raptor Lake–E

ID 743844
Date 03/25/2024

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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 3.2 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 client is a processor PECI device.
  • PECI EC Connection.

Example for PECI Host-Clients Connection

Example for PECI EC Connection