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CyberResearch
®
Motherboards
MMGA
Series
CyberResearch, Inc
.
223
25 Business Park Drive
P: (203) 643-5000; F: (203) 643-5001
Branford, CT USA
www.cyberresearch.com
C.1 DIO Interface Introduction
The DIO connector on the MMGA is interfaced to GPIO ports on the ITE IT8712F 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 ITE
IT8712F Super I/O chipset.
C.2 DIO Connector Pinouts
The following table describes how the DIO connector pins are connected to the Super I/O
GPIO port 1.
Pin
Description
Super I/O Pin
Super I/O Pin Description
1 Ground
N/A
N/A
2 VCC
N/A
N/A
3
Output 3
GP27
General purpose I/O port 2 bit 7.
4
Output 2
GP26
General purpose I/O port 2 bit 6.
5
Output 1
GP25
General purpose I/O port 2 bit 5.
6
Output 0
GP24
General purpose I/O port 2 bit 4.
7
Input 3
GP23
General purpose I/O port 2 bit 3.
8
Input 2
GP22
General purpose I/O port 2 bit 2
9
Input 1
GP21
General purpose I/O port 2 bit 1
10
Input 0
GP20
General purpose I/O port 2 bit 0
Содержание MMGA Series
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Страница 224: ...MMGA Series CyberResearch Motherboards 202 Copyright 2009 CyberResearch Inc 8 Intel AMT Configuration Chapter 8...
Страница 234: ...MMGA Series CyberResearch Motherboards 212 Copyright 2009 CyberResearch Inc A BIOS Options Appendix A...
Страница 238: ...MMGA Series CyberResearch Motherboards 216 Copyright 2009 CyberResearch Inc B Terminology Appendix B...
Страница 244: ...MMGA Series CyberResearch Motherboards 222 Copyright 2009 CyberResearch Inc C DIO Interface Appendix C...
Страница 248: ...MMGA Series CyberResearch Motherboards 226 Copyright 2009 CyberResearch Inc D Watchdog Timer Appendix D...
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