For MEMR(active low) and MEMWR(active low) operations the mode of isolation buffer should respectively be in
A. receiver mode, receiver mode
B. transmit mode, receiver mode
C. receiver mode, transmit mode
D. transmit mode, transmit mode
Answer:A
For MEMR(active low) and MEMWR(active low) operations the mode of isolation buffer should respectively be in
A. receiver mode, receiver mode B. transmit mode, receiver mode C. receiver mode, transmit mode D. transmit mode, transmit mode
Explanation: During MEMR(active low) the data flows from memory to CPU so isolation buffer should be in receiver mode and data flows from CPU to memory during MEMWR(active low) operation and so buffer should be in transmit mode.