Low Latency 100-Gbps Ethernet IP Core User Guide

ID 683160
Date 4/15/2021
Public
Document Table of Contents

3.2.9.2. Conditions Triggering XON Frame Transmission

The TX MAC transmits XON frames when one of the following conditions occurs:

  • Client requests XON transmission—A client can explicitly request that XON frames be sent using the pause control interface signal. When pause_insert_tx is de-asserted, an XON frame is sent to the Ethernet network when the current frame transmission completes.
  • Host (software) requests XON transmission—Resetting the pause request register triggers a request that an XON frame be sent.

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