GTS AXI Streaming Intel® FPGA IP for PCI Express* User Guide

ID 813754
Date 11/04/2024
Public
Document Table of Contents

6.5. Configuration Extension Bus (CEB) Interface

This interface is applicable only in Endpoint mode and is mutually exclusive with the Configuration Intercept Interface (CII). The CEB interface is similar to the CII interface, the differences are:
  • CII is active on all configuration cycles, while CEB is activate when the address is matching with a pre-programmed range. The pre-programmed range can be set via the GTS AXI Streaming IP parameter editor.
  • You can use CII for intercepting and overriding configuration read and write of any kind, not limited to the use case of extending PCIe* Capability. You can use CEB for PCIe* Capability extension purposes only.
When the CEB interface is present, the CII interface is not active as they are mutually exclusive.