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

ID 813754
Date 5/15/2024
Public
Document Table of Contents

7.4.1.9. PRS CTRL

The GTS AXI Streaming IP generates Page Request Service (PRS) events based on the settings of this PRS CTRL register. Usage of these control registers are applicable only when operating as Endpoint and with TLP Bypass disabled.

Default value: 0x0000_0000

Table 77.  PRS CTRL Register
Register Name Bit Location Attribute User Side Description
PRS CTRL 0 RW

Generate Page Request Service (PRS) Event.

Writing '1' to this bit triggers PRS event.

Write to this bit is ignored if bit is already set or none of the associated control bits (Response Failure/Unexpected Page Request Group Index/Stopped) is set.

The GTS AXI Streaming IP generates PRS event and clears this bit indicating requested operation complete.

5:1 RW

PF Number.

Indicates Physical Function Number of the PRS event.

7:6 RsvdZ Reserved.
8 RW

Response Failure.

Indicate that the function has received a PRG response failure.

9 RW

Unexpected Page Request Group Index.

Indicates that the function has received a response with Unexpected Page Request Group Index.

10 RW

Stopped.

Indicates that the function has completed all previously issued page requests and that it has stopped requests for additional pages. Only valid when the PRS enable.

bit is clear.

19:11 RsvdZ Reserved.
24:20 RsvdZ Reserved.
31:25 RsvdZ Reserved.