In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Coriolis wrote:

Ah, I think I understand, you accept a certain amount of jitter by only caring which interrupt period the sync occurs. I was always taught to oversample to reduce jitter in a sync operation, but I may just be remembering the technique of async com where you must clock off the width and edge of the start bit. Man my com knowledge is rusting and deficient.

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