IEI Technology TANK-870AI SERIES, User Manual

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TANK-870AI Embedded System
Page 120
E.2 Assembly Language Sample 1
MOV AX, 6F08H ;setting the digital port as input
INT 15H ;
AL low byte = value
AH – 6FH
Sub-function:
AL – 9 :Set the digital port as OUTPUT
BL
:Digital I/O input value
E.3 Assembly Language Sample 2
MOV AX, 6F09H ;setting the digital port as output
MOV BL, 09H ;digital value is 09H
INT 15H ;
Digital Output is 1001b