What is the function of 8255 chip?
A. the ports of 8255 can act as the input/ output port for the micro controller
B. it is a type of an external memory device that is being interfaced with the micro controller
C. both of the mentioned
D. none of the mentioned
Answer:A
What is the function of 8255 chip?
A. the ports of 8255 can act as the input/ output port for the micro controller B. it is a type of an external memory device that is being interfaced with the micro controller C. both of the mentioned D. none of the mentioned
Explanation: 8255 is an IC that is used to increase the number of input/output ports of a micro controller. As its ports offer an advantage of increasing the number of ports for interfacing external devices.