
PM-PV-D4251/N4551/D5251 User Manual
Page 122
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
Sets the digital port as input
INT 15H
Initiates the INT 15H BIOS call
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
Sets the digital port as output
MOV BL,
09H
INT 15H
Initiates the INT 15H BIOS call
Summary of Contents for PM-PV-D4251
Page 13: ...PM PV D4251 N4551 D5251 User Manual Page 1 Chapter 1 1 Introduction ...
Page 19: ...PM PV D4251 N4551 D5251 User Manual Page 7 Figure 1 6 Dimensions Bottom ...
Page 23: ...PM PV D4251 N4551 D5251 User Manual Page 11 Chapter 2 2 Unpacking ...
Page 27: ...PM PV D4251 N4551 D5251 User Manual Page 15 Chapter 3 3 Connectors ...
Page 47: ...PM PV D4251 N4551 D5251 User Manual Page 35 Chapter 4 4 Installation ...
Page 69: ...PM PV D4251 N4551 D5251 User Manual Page 57 Chapter 5 5 BIOS ...
Page 97: ...PM PV D4251 N4551 D5251 User Manual Page 85 Appendix A A BIOS Options ...
Page 100: ...PM PV D4251 N4551 D5251 User Manual Page 88 Appendix B B One Key Recovery ...
Page 128: ...PM PV D4251 N4551 D5251 User Manual Page 116 Appendix C C Terminology ...
Page 132: ...PM PV D4251 N4551 D5251 User Manual Page 120 Appendix D D Digital I O Interface ...
Page 135: ...PM PV D4251 N4551 D5251 User Manual Page 123 Appendix E E Watchdog Timer ...
Page 138: ...PM PV D4251 N4551 D5251 User Manual Page 126 Appendix F F Hazardous Materials Disclosure ...