Triple-Speed Ethernet Intel® FPGA IP User Guide

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ID 683402
Date 5/30/2022
Public
Document Table of Contents

4.2.3.5. Carrier Sense

The carrier sense state machine detects an activity when the link synchronization is acquired and when the transmit and receive encapsulation or de-encapsulation state machines are not in the idle or error states.

The carrier sense state machine drives the mii_rx_crs and led_crs signals to 1 when it detects an activity. The led_crs signal can be used as a common visual activity check using a board LED.

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