Hello
Do Cortex-M85 and Cortex-M55 have core ID ? If the processor is split-lock which is one usable core in lockstep or two usable cores in splitted mode, how can I tell which core it is ?
BR, Grace
Hello Mahmood
Do all the Cortex-M cores have no per-core ID register ? As I find Cortex-M4 also has no core ID register and I'd like to confirm whether it's the common feature for Cortex-M processors ?
Thanks. Grace
Hello Grace,
Yes, that’s correct. Cortex-M processors (including Cortex-M4) do not have a per-core ID register. The CPUID register only identifies the processor type, not the core instance.