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Processor interfaces

System register access allows the processor to directly access certain debug registers. The external debug interface, see External debug interface, enables both external and self-hosted debug agents to access debug registers. Access to the debug registers is partitioned as follows:

Debug registers

This function is system register based and memory-mapped. You can access the debug register map using the APB slave port. See External debug interface.

Performance monitor

This function is system register based and memory-mapped. You can access the performance monitor registers using the APB slave port. See External debug interface.

Trace registers

This function is memory-mapped. See External debug interface.

Cross Trigger Interface registers

This function is debug register based and memory-mapped. See Cross Trigger.

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