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

ISH IPC

The ISH has IPC channels for communication with the Host Processor and Intel® CSE. The functions supported by the ISH IPC block are listed below.

Function 1: Allows for messages and interrupts to be sent from an initiator (such as the ISH) and a target (such as the Intel® CSE). The supported initiator -> target flows using this mechanism are shown in the table below.

IPC Initiator -> Target Flows

Initiator

Target

ISH

Host processor

Host processor

ISH

ISH

Intel® CSE

Intel® CSE

ISH

Function 2: Provides status registers and remap registers that assist in the boot flow and debug. These are simple registers with dual access read/write support and cause no interrupts.