MC PCIe-DIO24 Manuale utente

PCIe-DIO24

Digital Input/Output

User's Guide

Document Revision 1, October, 2008

HM PCIe-DIO24.docx

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Table of Contents

Preface

About this User's Guide.......................................................................................................................6

What you will learn from this user's guide.........................................................................................................6

Conventions in this user's guide .........................................................................................................................6

Where to find more information.........................................................................................................................6

Register-level programming...............................................................................................................................7

Chapter 1

Introducing the PCIe-DIO24 .................................................................................................................8

Overview: PCIe-DIO24 features ........................................................................................................................8

Software features................................................................................................................................................8

PCIe-DIO24 block diagram................................................................................................................................9

Chapter 2

Installing the PCIe-DIO24 ...................................................................................................................10

What comes with your PCIe-DIO24 shipment? ...............................................................................................10

Hardware .........................................................................................................................................................................10

Additional documentation................................................................................................................................................10

Optional components.......................................................................................................................................................10

Unpacking the PCIe-DIO24 .............................................................................................................................11

Installing the software ......................................................................................................................................11

Installing the hardware .....................................................................................................................................11

Connecting the board for I/O operations ..........................................................................................................12

Main I/O connector..........................................................................................................................................................12

Connector pin out.............................................................................................................................................................12

Cabling.............................................................................................................................................................................13

Field wiring and signal termination .................................................................................................................................13

Chapter 3

Functional Details...............................................................................................................................14

82C55 emulation ..............................................................................................................................................14

Replacing a fuse ...............................................................................................................................................14

Fuse specifications...........................................................................................................................................................14

Logic level switch.............................................................................................................................................14

Chapter 4

Specifications......................................................................................................................................15

Digital input / output.........................................................................................................................................15

Power Consumption .........................................................................................................................................15

Environmental ..................................................................................................................................................15

Mechanical .......................................................................................................................................................16

General .............................................................................................................................................................16

Main connector and pin out..............................................................................................................................16

Preface

About this User's Guide

What you will learn from this user's guide

This user's guide explains how to install, configure, and use the PCIe-DIO24 so that you get the most out of its

digital I/O features.

This user's guide also refers you to related documents available on our web site, and to technical support

resources.

Conventions in this user's guide

For more information on …

Text presented in a box signifies additional information and helpful hints related to the subject matter you are

reading.

Caution! Shaded caution statements present information to help you avoid injuring yourself and others,

damaging your hardware, or losing your data.

< : > Angle brackets that enclose numbers separated by a colon signify a range of numbers, such as those assigned

to registers, bit settings, etc.

bold text Bold text is used for the names of objects on the screen, such as buttons, text boxes, and check boxes. For

example:

1. Insert the disk or CD and click the OK button.

italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase. For

example:

The InstaCal installation procedure is explained in the Quick Start Guide.

Never touch the exposed pins or circuit connections on the board.

Where to find more information

The following electronic documents provide helpful information relevant to the operation of the PCIe-DIO24.

MCC's Specifications: PCIe-DIO24 (the PDF version of the Specifications chapter in this guide) is

available on our web site at www.mccdaq.com/pdfs/PCIe-DIO24.pdf.

MCC's Quick Start Guide is available on our web site at

www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf.

MCC's Guide to Signal Connections is available on our web site at

www.mccdaq.com/signals/signals.pdf.

MCC's Universal Library User's Guide is available on our web site at

www.mccdaq.com/PDFmanuals/sm-ul-user-guide.pdf.

MCC's Universal Library Function Reference is available on our web site at

www.mccdaq.com/PDFmanuals/sm-ul-functions.pdf.

MCC's Universal Library for LabVIEW™User’s Guide is available on our web site at

www.mccdaq.com/PDFmanuals/SM-UL-LabVIEW.pdf.

PCIe-DIO24 User's Guide (this document) is also available on our web site at

www.mccdaq.com/PDFmanuals/PCIe-DIO24.pdf.

PCIe-DIO24 User's Guide About this User's Guide

If you need to program at the register level in your application, you can find more information in the Register

Map for the PCIe-DIO24. This document is available at www.mccdaq.com/registermaps/RegMapPCIe-

DIO24.pdf.

Only experienced programmers should try register-level programming.

Chapter 1

Introducing the PCIe-DIO24

Overview: PCIe-DIO24 features

This manual explains how to install and use the PCIe-DIO24 board. The PCIe-DIO24 is a digital I/O board

designed for the PCI Express (PCIe) bus.

The PCIe-DIO24 provides 24 lines of digital I/O with selectable 3.3 V and 5 V logic levels. The 24 DIO lines

are organized into three groups of 8-bits each (Port A, Port B, and Port C). Port C can be further divided into

two four-bit ports (Port C-HI and Port C-LO). The direction of each port is independently configurable with

software for either input or output. Digital outputs are HC logic and can source and sink 2.5 mA.

The PCIe-DIO24 has a 10 k resistor network associated with each digital port. You can configure each port for

pull-up or pull-down with software. On power up and reset the configuration of each port is read from

EEPROM. The board is shipped with each port configured in the pull-up state.

The PCIe-DIO24 emulates the 82C55 Programmable Peripheral Interface (PPI) chip. Measurement

Computing's Universal Library and Windows driver supports mode 0 only.

Digital I/O lines are accessible through a 37-pin D-type connector. The board has two individual slow blow

fuses rated at 0.375 amp to protect the +VDIO and +12V outputs on the connector. One spare fuse is provided.

Software programs written with the Universal Library for the USB-DIO24/37, PCI-DIO24 and CIO-DIO24

devices are fully compatible with the PCIe-DIO24.

Power is provided by the PCI Express slot. The PCIe-DIO24 board is completely plug-and-play. All board

addresses are set by the board's plug-and-play software. Board configuration is controlled by your system's

BIOS.

Software features

For information on the features of InstaCal and the other software included with your PCIe-DIO24, refer to the

Quick Start Guide that shipped with your device. The Quick Start Guide is also available in PDF at

www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf.

Check www.mccdaq.com/download.htm for the latest software version.

PCIe-DIO24 User's Guide Introducing the PCIe-DIO24

PCIe-DIO24 block diagram

PCIe-DIO24 functions are illustrated in the block diagram shown here.

Figure 1. PCIe-DIO24 functional block diagram

Boot

EEPROM

37-pin I/O Connector

Fuse

Protection

PORT A

PCI-to-Local

Bus

BADR2

BADR3

Bus

Timing

LAD(0:7)

PCI Express Edge Connector

x1 Link

PCIe-to-PCI

Bridge

PCI Bus

3.3V3.3V

1.5V

Regulator

3.3V, 32-bit, 66 MHz

Regulated

DIO

Local

Address

Data Bus

3.3V Board Power

Interface

Decode/Status

82C55 Emulation

Logic, Control,

Complex,

Programmable

Logic Device

(CPLD)

User

3.3/5V

I/O Switch

(VDD)3.3 V

PORT A

Buffering

3.3/5V

Direction CTR

PORT B

Buffering

PORT CL

Buffering

PORT CH

Buffering

PORT B

3.3/5V

Direction CTR 8

PORT CL

3.3/5V

Direction CTR 4

PORT CH

3.3/5V

Direction CTR 424 4

Direction

Control

GND

4EEPROM

switch +5V (VDD)

10 k

Pull

Resistor

Network

Buffer

Spare Fuse

V and 12V

DIO

(pin 18)

DIO

+VDIO

(pin 20)

+12V

(pin 16)

IRQ Input

IRQ Enable

+5 (VDD) 5V

Regulator

Fuse

Protection

+12V

VDIO

Chapter 2

Installing the PCIe-DIO24

What comes with your PCIe-DIO24 shipment?

The following items are shipped with the PCIe-DIO24.

Hardware

PCIe-DIO24

Additional documentation

In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF at

www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf). This booklet supplies a brief description of

the software you received with your PCIe-DIO24 and information regarding installation of that software. Please

read this booklet completely before installing any software or hardware.

Optional components

Cables

C37FF-x

C37FFS-x

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