Interfacing of 8253(Programmable Interrupt Timer) with 8086(Detailed Comments)

Q: Write an Alp to interface 8253 with 8086 in all the different modes

Os: Fedora-64 bit<Linux>
Software: Minicom

Code

MOde 0 counter 1
Dyna-86>A 3000
0000:3000  MOV AL, 50
0000:3002  OUT 33, AL
0000:3004  MOV AL, 04
0000:3006  OUT 31, AL
0000:3008  INT 3

Dyna-86>G 3000

Mode 1 counter 1

Dyna-86>U 3000
0000:3000  MOV AL, 52
0000:3002  OUT 33, AL
0000:3004  MOV AL, 04
0000:3006  OUT 31, AL
0000:3008  INT 3

Mode 2 counter 1

Dyna-86>U 3000
0000:3000  MOV AL, 54
0000:3002  OUT 33, AL
0000:3004  MOV AL, 04
0000:3006  OUT 31, AL
0000:3008  INT 3

Mode 3 counter 1

Dyna-86>U 3000
0000:3000  MOV AL, 56
0000:3002  OUT 33, AL
0000:3004  MOV AL, 04
0000:3006  OUT 31, AL
0000:3008  INT 3

Mode 4 counter 1

Dyna-86>U 3000
0000:3000  MOV AL, 58
0000:3002  OUT 33, AL
0000:3004  MOV AL, 04
0000:3006  OUT 31, AL
0000:3008  INT 3

Mode 5 counter 1

Dyna-86>U 3000
0000:3000  MOV AL, 5A
0000:3002  OUT 33, AL
0000:3004  MOV AL, 04
0000:3006  OUT 31, AL
0000:3008  INT 3