Quantum Data Gen 2 980 User Manual page 180

980 HDMI Protocol Analyzer User Guide
the video. If you do not want to capture the video and only capture the metadata, you can store over 100,000
frames of data.
4. Set the Trigger Position within the Buffer slidebar to a percent value to meet your requirements. This slide
bar enables you to set the position of the trigger event within the captured data. This is a slidebar that provides
an indication (on the left) of the location within the captured data, expressed as a percent with 0% indicating
that the trigger event occurs at the beginning of the captured data and 100% indicating that the trigger event
occurs at the end of the captured data.
Note: When using a Manual trigger it is important to set the Trigger Position to ensure that there is some
captured data prior to the manual trigger start point. The manual trigger is particularly useful when you are
observing the behavior of a connected sink and then manually initiating the trigger when a particular symptom
exhibits itself. Typically, you should move the trigger position to the right nearer the 100% mark. This way you
ensure that there is data prior to the trigger event by accounting for reaction time between the time the
symptom occurs and you initiate the trigger.
5. Select the Capture tab.
6. Select the Data Selection Type from the pull-down menu provided. The following selections are available:

Data Analysis [Audio, Video, Data Islands] - The 980 will capture all the audio packets, video data and the
data islands. If you select Data Analysis you can then refine your selection to include or exclude Timing
data and Video data using the associated check boxes under the Analysis heading.

Only Data Islands - The 980 will only capture the data islands (not the video packets)

Matched Data Islands – This selection is not required. If you wish to define pre-captured data, you use the
Match tab.
Page 180
Rev. A1
December 19, 2012