1.2.10. TPIU

The TPIU acts as a bridge between the Cortex-M3 trace data from the ITM, an ETM if present, and an off-chip Trace Port Analyzer. You can configure the TPIU to support either serial pin trace for low-cost debug, or multi-pin trace for higher bandwidth trace. The TPIU is CoreSight compatible.

Chapter 13 Trace Port Interface Unit describes the TPIU.

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