Intel® Processor and Intel® Core™ i3 N-Series

Datasheet, Volume 1 of 2

ID 759603
Date 01/04/2023
Version 001
Document Table of Contents

Multiple OOB Initiator

PCHs typically have multiple embedded processors (Intel® CSE, PMC, ISH, etc.). From an eSPI perspective, these are all classified as Out-of-Band (OOB) processors (as distinct from the Host processor). Since any of these OOB processors may need to communicate with the embedded controller on the platform (example, EC), the eSPI controller implements dedicated OOB channel for each OOB processors including PMC and Intel® CSE to improve the interface performance and potentially enable new usage models.