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Product Description

Parsed and Raw DPCD Data

Unigraf AUX Channel Monitor GUI parses all data captured from the AUX Channel traffic. This makes it straightforward for the engineer to follow the Sink / Source communication, the CTS test execution and refer it to the requirement of the standard. AUX Channel Monitor GUI lists every AUX Channel event both as as time stamped raw data and in parsed form. The details are explained with the same terminology used by the relevant VESA standard and Unigraf CTS Test report. 

AUX Channel Monitor detects and parses all DPCD locations, decodes the DP 1.2 Sideband Channel Communication messages. The activity of the Hot Plug Detect (HPD) signal and optional user defined input signals will also be tracked and time stamped.

Easy to Use

DPA-400 1.2 is a small sized, USB-powered device. It measures only 10.5×13×3.5 centimeters. The compact size and light weight makes it an ideal tool for a laboratory desktop. It is a snappy companion to a compatible laptop computer or tablet.

Unigraf AUX Channel Monitor affects the signal quality as little as possible. DPA-400 1.2 delivery includes a custom cable for bypassing the main stream lane signals. This ensures that the signal integrity of the high speed bus will not be compromized with monitoring.


  • Device independent
  • Data interpreter with time stamps
  • Detect and parse all DPCD locations
  • Decode the Sideband CH Communication messages
  • Pocket Size
  • USB controlled and powered


  • Silicon validation
  • Software debug and validation
  • Resolve interoperatibility problems
  • Monitoring and time measurement of events

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