Assembly Language Samples; D.3 A Ssembly L Anguage S Amples; Enable The Dio Input Function; Enable The Dio Output Function - IEI Technology KINO-DQM871 User Manual
Mini-itx sbc with 4th generation 22nm intel mobile cpu up to 16.0 gb ddr3, hdmi, lvds, displayport, vga dual gbe, sata 6gb/s, usb 3.0, dual pcie mini pcie x16, intel® amt 9.0, roh
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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
Page 192
KINO-DQM871 Mini-ITX SBC
Sets the digital port as input
Initiates the INT 15H BIOS call
Sets the digital port as output
Initiates the INT 15H BIOS call
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