Iei-integration IMBA-C2060 v1.03 Uživatelský manuál stáhnout pdf (Strana 196)

IMBA-C2060 ATX Motherboard

Page 180

D.1 Introduction

The DIO connector on the IMBA-C2060 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 +5V

3 D_IN0 4 D_OUT0

5 D_IN1 6 D_OUT1

7 D_IN2 8 D_OUT2

9 D_IN3 10 D_OUT3

11 D_8IN0 12 D_8OUT0

13 D_8IN1 14 D_8OUT1

15 D_8IN2 16 D_8OUT2

17 D_8IN3 18 D_8OUT3

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

1 2 ... 191 192 193 194 195 196 197 198 199 200 201 ... 207 208

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Iei-integration IMBA-C2060 v1.03 Uživatelský manuál Strana 196