C1.2 Debug access

The processor implements the ARMv8 Debug architecture and debug events. Accessing system registers allows the processor to access certain debug registers directly. The external debug interface enables both external and self-hosted debug agents to access debug registers.

The partitioning of debug register access is as follows:

Debug registers
Access is based on the system registers and is memory-mapped. You can access the debug register map using the APB slave port.
PMU
Access is based on the system registers and is memory-mapped. You can access the performance monitor registers using the APB slave port.
ETM
Access is memory-mapped.
CTI
Access is based on the debug registers and is memory-mapped.
Figure C1-2 External debug interface
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