Figure 486. Tpiu Block Diagram; Tpiu (Trace Port Interface Unit) - STMicroelectronics STM32F405 Reference Manual

RM0090
38.17

TPIU (trace port interface unit)

38.17.1 Introduction
The TPIU acts as a bridge between the on-chip trace data from the ITM and the ETM.
The output data stream encapsulates the trace source ID, that is then captured by a trace
port analyzer (TPA).
The core embeds a simple TPIU, especially designed for low-cost debug (consisting of a
special version of the CoreSight TPIU).

Figure 486. TPIU block diagram

CLK domain
Asynchronous
ETM
Asynchronous
ITM
External PPB bus
DocID018909 Rev 11
TPIU
FIFO
TPIU
formatter
FIFO
Debug support (DBG)
TRACECLKIN domain
TRACECLKIN
TRACECK
Trace out
TRACEDATA
(serializer)
[3:0]
TRACESWO
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