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PM-BT SBC
Page 89
D.1 Introduction
The DIO connector on the PM-BT is interfaced to GPIO ports on the Super I/O chipset.
The DIO has both 4-bit digital inputs and 4-bit digital outputs. The digital inputs and digital
outputs are generally control signals that control the on/off circuit of external devices or
TTL devices. Data can be read or written to the selected address to enable the DIO
functions.
NOTE:
For further information, please refer to the datasheet for the Super I/O
chipset.
The BIOS interrupt call
INT 15H
controls the digital I/O.
INT 15H:
AH – 6FH
Sub-function:
AL – 8
:Set the digital port as INPUT
AL
:Digital I/O input value
Summary of Contents for PM-BT series
Page 2: ...PM BT SBC Page ii Revision Date Version Changes May 31 2018 1 00 Initial release ...
Page 12: ......
Page 13: ...PM BT SBC Page 1 Chapter 1 1 Introduction ...
Page 22: ...PM BT SBC Page 10 Chapter 2 2 Packing List ...
Page 26: ...PM BT SBC Page 14 Chapter 3 3 Connectors ...
Page 51: ...PM BT SBC Page 39 Chapter 4 4 Installation ...
Page 63: ...PM BT SBC Page 51 Chapter 5 5 BIOS ...
Page 93: ...PM BT SBC Page 81 Appendix A A Regulatory Compliance ...
Page 95: ...PM BT SBC Page 83 B Product Disposal Appendix B ...
Page 97: ...PM BT SBC Page 85 Appendix C C BIOS Options ...
Page 100: ...PM BT SBC Page 88 Appendix D D Digital I O Interface ...
Page 103: ...PM BT SBC Page 91 Appendix E E Watchdog Timer ...
Page 106: ...PM BT SBC Page 94 Appendix F F Hazardous Materials Disclosure ...