Guaranteed operation of the TPA depends on correct design of the ASIC and of the target PCB.

When integrating an ETM into an ASIC, the quality and timing of the trace port signals to the TPA are critical for reliable operation. Some of the issues to consider are:

The importance of these issues is directly proportional to the operating frequency. At trace port frequencies greater than 100MHz, careful SPICE analysis of the system including the characteristics of the package and the chosen Trace Port Analyzer is recommended.