Ethernet Link Inspector User Guide for Intel® Stratix® 10 Devices

ID 683367
Date 7/01/2019
Document Table of Contents

3.2. Link Analysis Module

Link Analysis module of the Ethernet Link Inspector plots the behavior of an Ethernet IP link based on specific signals captured from Signal Tap Logic Analyzer.

When an Ethernet IP core is configured in a KR/CR configuration (which includes Auto Negotiation and Link Training), the local device can be in either one of the following four operational modes starting from power-up to the device operation of the IP core:

  1. Sequencer Initialize mode (SEQ_Initialize)
  2. Auto Negotiation mode (Auto_Neg)
  3. Link Training mode (Link_Training)
  4. Data mode (Data)

The local device implements various internal states as part of the Sequencer State Machine to represent the four modes above. The local device may use one or more of the internal states to represent any one of the above mode. Refer to Sequencer State Machine for more details.