600 Series Chipset Family Platform Controller Hub

Datasheet, Volume 1 of 2

ID 648364
Date 05/10/2022
Document Table of Contents

Multiple OOB Master

PCHs typically have multiple embedded processors (Intel ®CSME, 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. BMC), the eSPI controller implements dedicated OOB channel for each OOB processors including PMC and Intel ®CSME to improve the interface performance and potentially enable new usage models.