Arria V Avalon-ST Interface for PCIe Solutions: User Guide

ID 683660
Date 5/12/2017
Public
Document Table of Contents
Give Feedback

9.1.1. INTX Messages

Table 63.  INTX Messages

Message

Root Port

Endpoint

Generated by

Comments

App Layer

Core

Core (with App Layer input)

Assert_INTA

Receive

Transmit

No

Yes

No

For Root Port, legacy interrupts are translated into message interrupt TLPs which triggers the int_status[3:0] signals to the Application Layer.

  • int_status[0]: Interrupt signal A
  • int_status[1]: Interrupt signal B
  • int_status[2]: Interrupt signal C
  • int_status[3]: Interrupt signal D

Assert_INTB

Receive

Transmit

No

No

No

Assert_INTC

Receive

Transmit

No

No

No

Assert_INTD

Receive

Transmit

No

No

No

Deassert_INTA

Receive

Transmit

No

Yes

No

Deassert_INTB

Receive

Transmit

No

No

No

Deassert_INTC

Receive

Transmit

No

No

No

Deassert_INTD

Receive

Transmit

No

No

No