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AR# 47818

LogiCORE DisplayPort v2.3 - Why does the AUX REPLY_STATUS register remain as REPLY_IN_PROGRESS even when an HDP has occurred?

描述

Why does the AUX REPLY_STATUS register remain as REPLY_IN_PROGRESS even when an HDP event has occurred?

解决方案

This can occur if the cable is disconnected after an AUX command is issued, but before the reply has been received.


This is a known problem with the DisplayPort v2.3 and v3.1 that has been resolved in the DisplayPort v3.2.

To work around this issue, send a dummy AUX request after the disconnect.

This will ensure that the state machine recovers from the "stuck" state.

Please see (Xilinx Answer 33258) for a detailed list of LogiCORE IP Display Port Release Notes and Known Issues.

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
33258 LogiCORE IP DisplayPort - Release Notes and Known Issues N/A N/A
AR# 47818
日期 08/11/2014
状态 Archive
Type 综合文章
IP
  • DisplayPort
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