Table of Contents

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.1

IOP-241 Features

9

1.2

System Configuration

9

2. DOS / Windows 3.x Installation

 

 

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10

2.1

IOP-241 Client Driver for DOS

10

2.1.1 Client Driver Installation

11

2.1.2 Command Line Options

12

2.1.3 Common Problems

14

2.2

IOP-241 Enabler for DOS

15

2.2.1 Enabler Installation

16

2.2.2 Command Line Options

17

2.2.3 Common Problems

18

2.3

After Completing Configuration

19

3. Windows 95/98® Installation

 

 

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20

3.1

Installing the IOP-241 Under Windows 95/98

20

3.2

Resource Settings in Windows 95/98

20

3.2.1 Viewing Resource Settings with Device Manager

20

3.3

Changing Resource Settings with Device Manager

21

3.4

After Completing Configuration

22

4. Theory of Operation

 

 

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23

4.1

I/O Port Description

23

4.2

Port C Interrupt Description

24

4.3

External Interrupt Description

24

5. Register Descriptions

 

 

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25

5.1

Data Port A Control Register (Base + 0)

25

5.2

Data Port B Control Register (Base + 1)

26

5.3

Data Port C Control Register (Base + 2)

26

5.4

Port C Interrupt Enable Register (Base + 5)

27

5.5

Interrupt Mode Control Register (Base + 6)

28

5.6

Interrupt Status Register (Read Only) (Base + 7)

28

5.7

Interrupt Acknowledge Register (Write Only) (Base + 7)

29

5.8

Summary of Interrupt Source Options

29

5.9

Summary of Input/Output Options

30

5.10 Programming Example

31

IOP-241 Users Manual

6

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Omega Engineering IOP-241 user manual Table of Contents