Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 4/01/2024
Public
Document Table of Contents

5.8.7.4.2. Receiving IBI (All types)

As a part of master initialization procedure, program the following controls after the dynamic address procedure is complete:

  1. IBI Response Controls (SIR, MR)
  2. IBI Reject Notify Controls (SIR, MR)
  3. IBI Payload Control (if applicable)
  4. SIR Data Chunk Size (if applicable)

Refer to In-Band Interrupt (IBI) Detection and Handling.

The INTR_STATUS[IBI_THLD_STS] interrupt indicates the availability of the IBI status and you can read the IBI status and data (if application) from the IBI_QUEUE_STATUS register and IBI_QUEUE_DATA register respectively.

The following flow diagram shows the steps to be followed on detecting the IBI_THLD_STS interrupt.