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980 DP 1.4 Video Generator / Analyzer - User Guide
Rev. A1
5 DP Link Training Control
The 980 DP 1.4 Video Generator / Analyzer module enables you to control the link training with a DisplayPort sink
device. The Link Train application enables you to control the link training process. There are two modes: 1)
Adaptive Training and 2) Non Adaptive training. Adaptive Training enables you to train based on Lane Count and
Link Rates capabilities that you define in the application. When you set the Lane Count and Link Rate in the
Adaptive training mode you are emulating a DP source with those capabilities. The link will be established with the
appropriate voltage swing level and pre-emphasis necessary to establish a proper link. In the Non-Adaptive mode,
you are forcing the Lane Count and Link Rate as well as the voltage swing level and pre-emphasis and bypassing
the typical link training function.
Note that you can monitor the Aux Chan link transactions during these link training tests.
5.1
Accessing the Link Training Control application
Use the following procedure to test link training with your DP display device. This procedure assumes that you
have already selected a DP VESA format and a test pattern to meet your test application requirements.
1. Access the Link Train control application through the Tools tab on the 980 DP 1.4 Video Generator / Analyzer
module interface as shown below.
Page 84
June 16, 2017
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