1 Article purpose[edit source]
The purpose of this article is to provide information on the Arm® CoreSight™ hardware subsystem.
It explains what are the principle peripherals of this subsystem.
2 Peripheral overview[edit source]
Arm® CoreSight™ products include
- a wide range of trace macrocells for Arm® processors,
To enable the debug and trace of the most complex, multi-core SoCs, Arm® CoreSight™ products include
- a system and software instrumentation,
- and a comprehensive set of IP blocks.
Arm® has defined an open CoreSight architecture to allow SoC designers to add "debug and trace" capabilities for other IP cores in to the CoreSight™ infrastructure.
2.1 Components description[edit source]
The debug features are based on Arm® CoreSight™ components:
- SWJ-DP: JTAG/Serial-wire debug port
- AXI-AP: AXI access port
- AHB-AP: AHB access port
- APB-AP: APB access port
- ITM: Instrumentation Trace Macrocell
- DWT: Data Watchpoint and Trace
- ETM: Embedded Trace Macrocell
- ETF: Embedded Trace FIFO
- TPIU: Trace Port Interface Unit
- SWO: Serial Wire Output
- CTI: Cross Trigger Interface
- CTM: Cross Trigger Matrix
- TSGEN: Timestamp Generator
- STM: System Trace Macrocell
More information about these components can be found in the Arm® website [1]
2.2 Features[edit source]
Refer to the Debug support (DBG) chapter of
- STM32MP13 reference manuals for STM32MP13x lines
- STM32MP15 reference manuals for STM32MP15x lines
for the complete list of features, and to the software components, introduced below, to see which features are really implemented.
3 References[edit source]
Arm® is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere. 
Arm® is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.