Arria® 10 Transceiver PHY User Guide

ID 683617
Date 4/01/2024
Document Table of Contents Speed Detection Parameters

Selecting the speed detection option gives the PHY the ability to detect to link partners that support 1G/10GbE but have disabled Auto-Negotiation. During Auto-Negotiation, if AN cannot detect Differential Manchester Encoding (DME) pages from a link partner, the Sequencer reconfigures to 1GbE and 10GbE modes (Speed/Parallel detection) until it detects a valid 1G or 10GbE pattern.
Table 112.  Speed Detection
Parameter Name