DP AUX (DisplayPort Auxiliary channel)

The DP AUX Channel is to detect the link, configuration, and status of the Display Port source. The Display Port is the digital display interface that is specified in the VESA standard.

Logic Analyzer

TB3016B

TB3000 series Specifications PDF

MSO2116E (w/ analog channels)

MSO2000 series Specifications PDF

DSO waveforms

DP AUX decode / waveforms (digital + analog):

Multiple protocols decode / waveforms

Measure DP AUX differential signals using TravelBus3000 series’ Differential Ports

MSO2216B with DP AUX adapter and USB Type-C fixture

DP AUX Differential Signal Adaptor

Cascade multiple DP AUX adapters:

USB Type-C fixture

Protocol Quick Setup：

1. Click Quick Settings to select a protocol for logic analyzer capture.

2. Select DP_AuxCH for decoding.

3. The system provides recommended settings for trigger type, sampling rate, voltage threshold, and channel settings.

4. Click the icon to access the Decode Settings screen.

Decode Settings

Channel: Set the channel to decode

Show DPCD: Show the Display Port Configuration data.

Mode: Choose the mode DP_Aux/HPD/PWR

Startup transaction: Set the transaction type of the first frame

Reply Timeout: Set the value of timeout

YouTube Videos

DP AUX Decoding Examples