Using Precision Trigging And Pre-Capture Filtering - Quantum Data Gen 2 980 User Manual

980 HDMI Protocol Analyzer User Guide Rev. A1

8.12 Using Precision Trigging and Pre-Capture Filtering

If the trigger and data matching selections available on the Data and Trigger menus are not sufficient, you can use
the Match feature to define more specific triggering and matching criteria. The 980 HDMI Protocol Analyzer
Capture Control function has an advanced triggering and pre-capture filtering function which enables you to
specify the triggering and pre-capture filtering with a greater degree of detail. These advanced features are
configured through the Match functional tab under the Capture tab shown below.
To set the match criteria for either pre-capture filtering or triggering, you check the appropriate box (Data or
Trigger) in the Match tab for each Match definition. Once you check either the Data or Trigger checkbox the Edit
activation button becomes enabled. Clicking on the Edit activation button will open up the Data Island Match
Editor dialog box (shown below). The Data Island Match Editor dialog box is where you define the advance
triggering and pre-capture filtering.
Note: If you are going to set both a custom match trigger and a custom match data you must use different Match
Edit dialog boxes.
8.12.1 Advanced Triggering using Match Definition
You can trigger on a single condition or multiple conditions in the same data island type using one of the Match
definitions (Match 1, 2 or 3). When you trigger on multiple conditions using the same Match definition in a single
type of data island, the two conditions are treated as a logical AND. This means that only when both conditions are
met, will the trigger activate.
You can trigger on multiple conditions in the different data island types using two of the Match definitions (Match 1,
Match 2). When you trigger on multiple conditions in separate Match definitions, the two conditions are treated as a
logical OR. This means that the trigger will activate when either condition is met.
8.12.2 Advanced Pre-Capture Filtering using Data Match Definition
If you are using the Match function at all for advanced triggering, you will have to define the pre-capture filter using
a different Match definition. For example if you are using Match 1 to set the triggering, you should use Match 2 or 3
for pre-capture filtering.
Page 186 December 19, 2012