4 TPIU pattern generator

A simple set of defined bit sequences or patterns can be output over the trace port. The TPA, or other associated trace capture device, can detect these sequences.

Analysis of the output can indicate whether it was possible to increase or, for reliability, to decrease the trace port clock speed. To ensure reliable data capture, the patterns can be used to determine the timing characteristics. The patterns can also alter any delay components on the data channels in a TPA.


Arm recommends that you only enable the pattern generator while the formatter is stopped.
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