13.2.3. Serial Wire Output format

The TPIU can output trace data in a Serial Wire Output (SWO) format:

When one of the two SWO modes is selected, you can enable the TPIU to bypass the formatter for trace output. If the formatter is bypassed, only the ITM and DWT trace source passes through. The TPIU accepts and discards data from the ETM. You can use this function to connect a device containing an ETM to a trace capture device that is only able to capture SWO data.

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