Christian Kleiber wrote:
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my question is. when executing fase 1-4. can i still work with the 8051 or it stops doing whatever it was doing, and loose those precious and critical 9.25us. or the 8051 works and the next instruction to execute is the fase 5

no it does not stops until the current instruction is executed. yes you may loose some time as far as execution is concern, but independant hardware like timers and communication goes on, according to the way it has been programmed.


abhishek