A directory of Objective Type Questions covering all the Computer Science subjects. Here you can access and discuss Multiple choice questions and answers for various compitative exams and interviews.

Discussion Forum

Que. Why MOVX instruction is being used to access the ports of the 8255?
a. because 8255 is used to access the memory mapped I/O
b. because 8255 is used to access the external communication
c. because 8255 is used to access the data transfer
d. because 8255 is used to access the interfacing of LCD, motor etc.
Answer:because 8255 is used to access the memory mapped I/O
Confused About the Answer? Ask for Details Here
Know Explanation? Add it Here