ARM Cortex-A76 Core

C3.3 AMU counters
The Cortex-A76 core implements five counters, 0-4. The activity monitor counters,
CPUAMEVCNTR0-4, have the following characteristics:
• All events are counted in 64-bit wrapping counters that overflow when they wrap. There is no support
for overflow status indication or interrupts.
• Counters monitoring cycle events do not increment when the core is in WFI or WFE state.
• Events 0, 1, 2, 3, and 4 are fixed, and the CPUAMEVTYPER<n> evtCount bits are read-only.
C3 Activity Monitor Unit
C3.3 AMU counters
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