microcontroller - What's the difference between an event and an interrupt in ARM Cortex? -


i wondering, because seems different (for example wfi , wfe separate instructions), can't pinpoint thing.

both instructions meant power management/saving. while wfi supposed halt core till interrupt or exception occurs, wfe wait "event", can send sev instruction.

it implementation defined level instructions implemented, might nops. example can not trust interrupt or "event" occurred when wfe returns.


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