Which is true in interfacing 7 segment code display?
A. transmitted by second port
B. display is selected by third port
C. display is selected by second port
D. none of the mentioned
Answer:A
Which is true in interfacing 7 segment code display?
A. transmitted by second port B. display is selected by third port C. display is selected by second port D. none of the mentioned
Explanation: The 7-segment code of a digit is transmitted by the first port and the display is selected by second port. As soon as the display is selected by the second port, the digit starts glowing on that display position.