Conclusion - 16.2 English

1G/2.5G Ethernet PCS/PMA or SGMII LogiCORE IP Product Guide (PG047)

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16.2 English

The device-specific transceivers can be configured to optionally perform clock correction during the auto-negotiation cycle, and their default configuration varies from family to family. Regardless, if correctly connected, as per the example design, the core state machine can determine the transceivers elastic buffer behavior and auto-negotiation will complete cleanly.