Quantum Data Gen 2 980 User Manual page 188

980 HDMI Protocol Analyzer User Guide Rev. A1
8.12.3 Setting a Custom Data Match Definition
Configuring the system to capture a subset of the data islands is more complex and involves setting the mask data
to values for the data island header which satisfies multiple data island types. You do this using the Data Bytes
table on the left side of the Data Island Match Editor. For example, if you want to capture only infoframes, you
would set the first byte of the header value under Data Bytes to a value that satisfies all infoframes. Since all
infoframes have an 8 as the first value in the header, you would set that value to 80. You would set the
corresponding value in the Masks table 7F such that only the first bit (most significant) would be used to set the
pre-capture filter criteria. This is shown in the screen capture below.
Page 188 December 19, 2012