IEI Technology HPCIE-Q470, User Manual

Page: 76 / 84

HPCIE-Q470 Half-size PICMG 1.3 CPU Card
Page 76
C.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
C.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