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

ID 683297
Date 12/21/2020
Public
Document Table of Contents

10.1.2. Power Management Messages

Table 69.  Power Management Messages

Message

Root Port

Endpoint

Generated by

Comments

App Layer

Core

Core (with App Layer input)

PM_Active_State_Nak

TX

RX

No

Yes

No

PM_PME

RX

TX

No

No

Yes

PME_Turn_Off

TX

RX

No

No

Yes

The pme_to_cr signal sends and acknowledges this message:

  • Root Port: When pme_to_cr is asserted, the Root Port sends the PME_turn_off message.
  • Endpoint: When PME_to_cr is asserted, the Endpoint acknowledges the PME_turn_off message by sending a pme_to_ack message to the Root Port.

PME_TO_Ack

RX

TX

No

No

Yes

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