ST STM32F40 Series User Manual

RM0090 Debug support (DBG)
Doc ID 018909 Rev 4 1400/1422
33.17 TPIU (trace port interface unit)
33.17.1 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 428. TPIU block diagram
Bits 15:2 Reserved, must be kept at reset value.
Bit 1 DBG_TIM8_STOP: TIM8 counter stopped when core is halted
0: The clock of the involved Timer Counter is fed even if the core is halted
1: The clock of the involved Timer counter is stopped when the core is halted
Bit 0 DBG_TIM1_STOP: TIM1 counter stopped when core is halted
0: The clock of the involved Timer Counter is fed even if the core is halted
1: The clock of the involved Timer counter is stopped when the core is halted
formatter
Trace out
(serializer)
TRACECLKIN
TRACECK
TRACEDATA
[3:0]
TRACESWO
CLK domain
TRACECLKIN domain
External PPB bus
TPIU
TPIU
Asynchronous
FIFO
Asynchronous
FIFO
ETM
ITM
ai17114

ST STM32F40 Series Specifications

General

Brand	ST
Model	STM32F40 Series
Category	Microcontrollers
Language	English