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About the ETM

The Embedded Trace Macrocell (ETM) trace unit is a module that performs real-time instruction flow tracing based on the ETMv4 architecture. The ETM is a CoreSight component, and is an integral part of the Arm® Real-time Debug solution, DS-5 Development Studio.

See the Arm® Embedded Trace Macrocell Architecture Specification, ETMv4 for more information.