DisplayPort IP User Guide

ID 683273
Date 7/15/2025
Public
Document Table of Contents

9.30. btc_dptx_aux_set_read_reply_timeout

 

Prototype:

void btc_dptx_aux_set_read_reply_timeout(BYTE tx_idx,unsigned int new_aux_read_reply_timeout);

Thread-safe:

Yes

Available from ISR:

Yes

Include:

<btc_dptx_syslib.h>

Return:

-

Parameters:

* tx_idx - source instance index (0-3) * new_aux_read_reply_timeout - new timeout value in us

Description:

Change the timeout value when waiting for a reply to an aux transaction. The values mandated by the standards are 400+us (no LTTPR in the link) and 3200+us (LTTPRs in the link). By default, this is set to 2500us (no LTTPR) or 3500us (LTTPRs) by the library but the value may be overwritten after link training.

Example:

btc_dptx_aux_set_read_reply_timeout(0, 400);