MC PCIe-DIO24 User manual

PCIe-DIO24
Digital Input/Output
User's Guide
Document Revision 1, October, 2008
© Copyright 2008, Measurement Computing Corporation

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HM PCIe-DIO24.docx
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Notice
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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

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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
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Register-level programming
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.

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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
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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
8
8
4
4
8
PORT A
PCI-to-Local
Bus
BADR2
+
BADR3
Bus
Timing
LAD(0:7)
8
PCI Express Edge Connector
x1 Link
PCIe-to-PCI
Bridge
PCI Bus
3.3V3.3V
1.5V
Regulator
3.3V, 32-bit, 66 MHz
+V
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
5V
(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
4
Spare Fuse
V and 12V
DIO
+V
(pin 18)
DIO
+VDIO
(pin 20)
+12V
(pin 16)
IRQ Input
IRQ Enable
+5 (VDD) 5V
Regulator
Fuse
Protection
+12V
VDIO

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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