My experience is mainly from 8-bit CPUs, but unless you can afford one IRQ per bit, won't you just be busy waiting at 320 MHz instead? Performance tends to be l

My experience is mainly from 8-bit CPUs, but unless you can afford one IRQ per bit, won't you just be busy waiting at 320 MHz instead? Performance tends to be less of a problem than the fact that you can't do anything else at the same time.