Assembly Language Samples; Enable The Dio Input Function; Enable The Dio Output Function - IEI Technology NOVA-9102 User Manual

PIN NO. DESCRIPTION
15 8IN2
16 8OUT2
17 8IN3
18 8OUT3
19 8IN4
20 8OUT4
21 8IN5
22 8OUT5
23 8IN6
24 8OUT6
25 8IN7
26 8OUT7
D.3 Assembly Language Samples
D.3.1 Enable the DIO Input Function
The BIOS interrupt call INT 15H controls the digital I/O. An assembly program to enable
digital I/O input functions is listed below.
MOV AX, 6F08H
INT 15H
D.3.2 Enable the DIO Output Function
The BIOS interrupt call INT 15H controls the digital I/O. An assembly program to enable
digital I/O output functions is listed below.
MOV AX, 6F09H
MOV BL, 09H
INT 15H
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NOVA-9152 and NOVA-9102 5.25" Motherboard
LC4032/64-T8 Pin
43
16
44
17
45
20
46
21
14
22
15
23
Sets the digital port as input
Initiates the INT 15H BIOS call
Sets the digital port as output
Initiates the INT 15H BIOS call
LC4032/64-T8 Pin Description
CLK0/I
IO_B12
IO/OE_A0
IO_B14
IO_A2
IO_C0
IO_A4
IO_C2
IO_B8
IO_C4
IO_B10
IO_C6