Statement:Write a program to initialize 8255 in the configuration given below
Sample 1:
Write a program to initialize 8255 in the configuration given below:
1. Port A: Simple input
2. Port B: Simple output
3. Port CL: Output
4. Port Cu: Input
Assume address of the control word register of 8255 as 83H.
Solution:
Sample 2:
Write a program to initialize 8255 in the configuration given below:
1. Port A: Output with handshake
2. Port B: Input with handshake
3. Port CL: Output
4. Port Cu: Input
Assume address of the control word register of 8255 as 23H.
Solution:
SOURCE PROGRAM 1:
MVI A, 98H : Load control word
OUT 83H : Send control word
SOURCE PROGRAM 2:
MVI A, AEH : Load control word
OUT 23H : Send control word