ARM Cortex-A76 Core

C3.1 About the AMU
The Cortex-A76 core includes activity monitoring. It has features in common with performance
monitoring, but is intended for system management use whereas performance monitoring is aimed at
user and debug applications.
The activity monitors provide useful information for system power management and persistent
monitoring. The activity monitors are read-only in operation and their configuration is limited to the
highest Exception level implemented.
The Cortex-A76 core implements five counters, 0-4, and activity monitoring is only implemented in
AArch64.
C3 Activity Monitor Unit
C3.1 About the AMU
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C3-386
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