3.3

A/D Data Registers

14

3.4

A/D Channel Control Register

15

3.5

A/D Channel Read Back Register

16

3.6

A/D Input Signal Range Control Register

16

3.7

A/D Range and Status Readback Register

17

3.8

A/D Trigger Mode Control Register

17

3.9

Software Trigger Register

18

3.10

Interrupt Control Register

18

3.11

Hardware Interrupt Clear Register

19

3.12

A/D Mode & Interrupt Control Read Back Register

19

3.13

Extended I/O Ports

20

3.14

Digital I/O register

20

3.15

D/A Output Register

21

3.16

Timer/Counter Register

21

Chatper 4 Operation Theorem

22

4.1

A/D Conversion

22

 

4.1.1

A/D Conversion Procedure

23

 

4.1.2

A/D Signal Source Control

23

 

4.1.3

A/D Trigger Source Control

25

 

4.1.4

A/D Data Transfer Modes

26

 

4.1.5

Pre-Trigger Control

28

 

4.1.6

A/D Data Format

30

4.2

Interrupt Control

31

 

4.2.1

System Architecture

31

 

4.2.2

IRQ Level Setting

31

 

4.2.3

Dual Interrupt System

31

 

4.2.4

Interrupt Source Control

32

4.3

Extended Digital I/O Port

32

4.4

D/A Conversion

33

4.5

Digital Input and Output

34

4.6

Timer/Counter Operation

34

 

4.6.1

Introduction

34

 

4.6.2

Pacer Trigger Source

35

 

4.6.3

Pre-Trigger Counter

35

 

4.6.4

I/O Address

35

Chatper 5 C/C++ Library

36

5.1

Libraries Installation

36

5.2

Programming Guide

37

 

5.2.1

Naming Convention

37

 

5.2.2

Data Types

37

5.3

_9111_Initial

38

ii Table of Contents

Page 6
Image 6
HP NuDAQ I-9111DG/HR manual Hardware Interrupt Clear Register, Conversion, Interrupt Control, 9111Initial