IMB-Q870-i2 microATX Motherboard
Page 199
D.1 Introduction
The DIO connector on the IMB-Q870-i2 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.
D.2 DIO Connector Pinouts
PIN NO. DESCRIPTION
PIN NO. DESCRIPTION
1
GND
2
VCC
3
Output 3
4
Output 2
5
Output 1
6
Output 0
7
Input 3
8
Input 2
9
Input 1
10
Input 0
Table 6-1: Digital I/O Connector Pinouts
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
Содержание IMB-Q870-i2
Страница 17: ...IMB Q870 i2 microATX Motherboard Page 1 Chapter 1 1 Introduction ...
Страница 25: ...IMB Q870 i2 microATX Motherboard Page 9 Chapter 2 2 Packing List ...
Страница 31: ...IMB Q870 i2 microATX Motherboard Page 15 Chapter 3 3 Connectors ...
Страница 69: ...IMB Q870 i2 microATX Motherboard Page 53 Chapter 4 4 Installation ...
Страница 96: ...IMB Q870 i2 microATX Motherboard Page 80 Chapter 5 5 BIOS ...
Страница 140: ...IMB Q870 i2 microATX Motherboard Page 124 6 Software Drivers Chapter 6 ...
Страница 162: ...IMB Q870 i2 microATX Motherboard Page 146 Figure 6 30 Intel ME Driver Installation Finish Screen ...
Страница 163: ...IMB Q870 i2 microATX Motherboard Page 147 Appendix A A BIOS Options ...
Страница 166: ...IMB Q870 i2 microATX Motherboard Page 150 ...
Страница 167: ...IMB Q870 i2 microATX Motherboard Page 151 Appendix B B Terminology ...
Страница 171: ...IMB Q870 i2 microATX Motherboard Page 155 Appendix C C One Key Recovery ...
Страница 179: ...IMB Q870 i2 microATX Motherboard Page 163 Figure C 5 Partition Creation Commands ...
Страница 214: ...IMB Q870 i2 microATX Motherboard Page 198 Appendix D D Digital I O Interface ...
Страница 217: ...IMB Q870 i2 microATX Motherboard Page 201 Appendix E E Watchdog Timer ...
Страница 220: ...IMB Q870 i2 microATX Motherboard Page 204 Appendix F F Hazardous Materials Disclosure ...