Intel® Arria® 10 Hard Processor System Technical Reference Manual

ID 683711
Date 8/28/2023
Public
Document Table of Contents

10.3.10. Performance Monitoring Unit

Each Cortex* -A9 processor has a Performance Monitoring Unit (PMU). The PMU supports 58 events to gather statistics on the operation of the processor and memory system. Six counters in the PMU accumulate the events in real time. The PMU counters are accessible either from the processor itself, using the Coprocessor 14 (CP14) interface, or from an external debugger. The events are also supplied to the PTM and can be used for trigger or trace.