C2.5 Exporting Pmu Events - ARM Cortex-A76 Core Technical Reference Manual

C2.5 Exporting PMU events
Some of the PMU events are exported to the ETM trace unit to be monitored.
The PMUEVENT bus is not exported to external components. This is because the event bus cannot
safely cross an asynchronous boundary when events can be generated on every cycle.
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C2 Performance Monitor Unit

C2.5 Exporting PMU events

C2-384