Supported standards and specifications
The Cortex®‑A77 core implements the Arm®v8‑A architecture and some architecture extensions. It also supports interconnect, interrupt, timer, debug, and trace architectures.
Table A1-2 Compliance with standards and specifications
|Architecture specification or standard||Version||Notes|
|Arm architecture extensions||
|Generic Interrupt Controller||GICv4||-|
|Generic Timer||Armv8‑A||64-bit external system counter with timers within each core.|
|Debug||Armv8‑A||With support for the debug features added by the Armv8.2-A extensions.|
|Embedded Trace Macrocell||ETMv4.2||Instruction trace only.|
See Additional reading for a list of architectural references.