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

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

7.3.1.1. Root Port Interrupt Status

Default value: 0x0000_0000

Table 59.  Root Port IRQ Status Register
Register Name Bit Attribute User Side Description
root_port_irq_status 0 RW

inta

Set when RC INTA assertion message is received, cleared by SW write 1.

1 RW

intb

Set when RC INTB assertion message is received, cleared by SW write 1.

2 RW

intc

Set when RC INTC assertion message is received, cleared by SW write 1.

3 RW

intd

Set when RC INTD assertion message is received, cleared by SW write 1.

4 RW

cfg_aer_rc_err_int

Set when a reported error condition causes a bit to be set in the Root Error Status register and the associated error message reporting enable bit is set in the Root Error Command register. This happens when the RC internally generates an error or when an error message is received by the RC. HW self clear or SW write 1 to clear.

5 RW

cfg_pme_int

Set when following condition meets: The INTx Assertion Disable bit in the Command register is 0. The PME Interrupt Enable bit in the Root Control register is set to 1. The PME Status bit in the Root Status register is set to 1. HW self clear or SW write 1 to clear.

6 RW

hp_int

Set when all the following conditions are true: The INTx Assertion Disable bit in the Command register is 0. Hot-Plug interrupts are enabled in the Slot Control register. Any bit in the Slot Status register is equal to 1, and the associated event notification is enabled in the Slot Control register HW self clear or SW write 1 to clear.

7 RW

hp_pme

Set when all the following conditions are true: The PME Enable bit in the Power Management Control and Status register is set to 1. Any bit in the Slot Status register transitions from 0 to 1 and the associated event notification is enabled in the Slot Control register. HW self clear or SW write 1 to clear

8 RW

cfg_link_auto_bw_int

The controller asserts cfg_link_auto_bw_int when all of the following conditions are true: The INTx assertion disable bit in the Command register is 0, and The Link Autonomous Bandwidth Interrupt Enable bit in the Link Control register is set to 1, and The Link Autonomous Bandwidth Interrupt Status bit in the Link Status register is set to 1. SW write 1 to clear.

9 RW

cfg_bw_mgt_int

The controller asserts cfg_bw_mgt_int when all of the following conditions are true: The INTx Assertion Disable bit in the Command register is 0, and The Bandwidth Management Interrupt Enable bit in the Link Control register is set to 1, and The Bandwidth Management Interrupt Status bit in the Link Status register is set to 1 SW write 1 to clear.

10 RW

cfg_link_eq_req_int

Interrupt indicating to your application that the Link Equalization Request bit in the Link Status 2 Register has been set and the Link Equalization Request Interrupt Enable (Link Control 3 Register bit 1) is set. SW write 1 to clear.

31:11 RsvdZ Reserved.