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AR# 58108

QSGMII v2.0 (Rev.1) and earlier - Update to RX termination for 7 Series GTH

描述

If using the QSGMII core v2.0 (Rev.1) and earlier to target Virtex-7 devices with GTH transceivers, the RX termination is set to AVTT while the latest recommendation in the GTH transceiver User Guides is to set the RX termination to 800 mV if using DFE mode.

解决方案

To change the RX termination to 800 mV for Virtex-7 GTH transceiver:

  • In the core_name_gth_gtwizard_gt.v/vhd file, change to use the following settings:
    RX_CM_SEL [1:0] = 2'b11
    RX_CM_TRIM = 4'b1010

链接问答记录

主要问答记录

Answer Number 问答标题 问题版本 已解决问题的版本
54668 LogiCORE IP QSGMII - Release Notes and Known Issues for Vivado 2013.1 and Forward N/A N/A
AR# 58108
日期 10/31/2013
状态 Active
Type 综合文章
IP
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