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8.8. TPIU pattern generator

A simple set of defined bit sequences or patterns can be output over the trace port and be detected by the TPA or other associated trace capture device. Analysis of the output can indicate if it was possible to increase or, for reliability, to decrease the trace port clock speed. The patterns can also be used to determine the timing characteristics and so alter any delay components on the data channels in a TCD, to ensure reliable data capture.