The function, 'data bus tristated' is performed when

Electronics and Communication Engineering (ECE) : Microprocessors - Quiz(MCQ)

CS(active low) = 0

CS(active low) = 1

CS(active low) = 0, RD(active low) = 1, WR(active low) = 1

CS(active low) = 1 OR CS(active low) = 0, RD(active low) = 1, WR(active low) = 1

Correct Answer : Option (D) : CS(active low) = 1 OR CS(active low) = 0, RD(active low) = 1, WR(active low) = 1

Explanation : The data bus is tristated when chip select pin=1 or chip select pin=0 and read and write signals are high i.e 1.

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