V-Series Transceiver PHY IP Core User Guide

ID 683171
Date 7/26/2022
Public
Document Table of Contents

4.4.2. 10GBASE-KR Auto-Negotiation and Link Training Parameters

Table 26.  Auto Negotiation and Link Training Settings
Name Range Description
Enable Auto-Negotiation On

Off

Enables or disables the Auto-Negotiation feature.
Pause ability-C0 On

Off

Depends upon MAC. Local device pause capability C2:0 = D12:10 of AN word.

C0 is the same as PAUSE.

Pause ability-C1 On

Off

Depends upon MAC. Local device pause capability C2:0 = D12:10 of AN word.

C1 is the same as ASM_DIR.

Enable Link Training On

Off

Enables or disables the Link Training feature.
Maximum bit error count

15, 31, 63, 127, 255, 511, 1023

Specifies the number of bit errors for the error counter expected during each step of the link training. If the number of errors exceeds this number for each step, the core returns an error. The number of errors depends upon the amount of time for each step and the quality of the physical link media.

The default value is 511.

Number of frames to send before sending actual data

127, 255

This timer is started when the local receiver is trained and detects that the remote receiver is ready to receive data. The local physical medium dependent (PMD) layer delivers wait_timer additional training frames to ensure that the link partner correctly detects the local receiver state.

The default value is 127.

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