The function, ‘data bus tristated’ is performed when
A. CS(active low) =1
B. CS(active low) =0
C. CS(active low) =0, RD(active low) =1, WR(active low) =1
D. CS(active low) =1 OR CS(active low) =0, RD(active low) =1, WR(active low) =1
Answer:A
The function, ‘data bus tristated’ is performed when
A. CS(active low) =1 B. CS(active low) =0 C. CS(active low) =0, RD(active low) =1, WR(active low) =1 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.