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

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

4.14. Page Request Service (EP only)

The Page Request Service (PRS) Control register allows the GTS AXI Streaming IP to generate events on the HIP’s PRS interface. When an Endpoint determines that it requires access to a page for which the ATS translation is not available, it sends a Page Request message to request that the page be mapped into system memory. By accessing the configuration space register PRS_CTRL, the GTS AXI Streaming IP converts the configuration space register access to a PRS Received message to be sent over to the HIP. The PRS Received message only applies in EP mode, and with TLP Bypass disabled.
Note: Refer to Control Registers for the details about the PRS CTRL register.