An ADC is interfaced with a microprocessor as shown in the figure. All signals have been indicated with typical notations. Acquisition of one new sample of the analog input signal by the microprocessor involves:
a) one READ cycle only
b) one WRITE cycle only
c) one WRITE cycle followed by one READ cycle
d) one READ cycle followed by one WRITE cycle
So as I understand it, an ADC is treated as an input device. The Microprocessor (MP) sends an initialising signal first to the ADC, the ADC starts the conversion. Is this the "WRITE" cycle?
Now once the conversion is done, the ADC sends the EOC signal, and now the MP does the READ cycle, completing the Acquisition.
I was not sure of what all is going on, I wanted confirmation that (c) is the answer.