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PCIe-DIO24 Digital Input/Output gp d. su n w ay in fo . co m .
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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 .........................................................................................................................
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.
PCIe-DIO24 User's Guide About this User's Guide 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/RegMapPCIeDIO24.pdf. gp d. su n w ay in fo . co m .cn 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).
PCIe-DIO24 User's Guide Introducing the PCIe-DIO24 PCIe-DIO24 block diagram PCIe-DIO24 functions are illustrated in the block diagram shown here. +12V +12V (pin 16) Fuse Protection +V DIO (pin 18) Fuse Protection +V DIO Regulated Spare Fuse VDIO and 12V 1.5V Regulator 3.3V 3.3V Board Power +V DIO (pin 20) +5 (VDD) 3.3V 5V Regulator PORT B Buffering PORT CL Buffering 4 Direction CTR PCIe-to-PCI Bridge 8 3.3/5V PORT B Direction CTR 8 Complex, Programmable Logic Device (CPLD) 3.
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 gp d. su n w ay in fo . co m .cn 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).
PCIe-DIO24 User's Guide Installing the PCIe-DIO24 Signal termination and conditioning accessories Measurement Computing provides signal termination products for use with the PCIe-DIO24. Refer to the section "Field wiring and signal termination" on page 13 for compatible accessory products. Unpacking the PCIe-DIO24 As with any electronic device, you should take care while handling to avoid damage from static electricity.
PCIe-DIO24 User's Guide Installing the PCIe-DIO24 Connecting the board for I/O operations Main I/O connector The table below lists the board connectors, applicable cables and compatible accessory boards. Board connectors, cables, accessory equipment Connector type Compatible cables Compatible accessory products (with the C37FF-x or C37FFS-x cable) 37-pin D-type C37FF-x unshielded ribbon cable. x = length in feet. (see Figure 3) C37FFS-x cable shielded round cable. x = length in feet.
PCIe-DIO24 User's Guide Installing the PCIe-DIO24 Cabling The red stripe identifies pin # 1 1 1 20 20 37 37 19 19 Figure 3. C37FF-x cable 1 1 20 20 19 37 19 37 m .cn Figure 4. C37FFS-x cable fo . co Field wiring and signal termination su n SCB-37 – 37-conductor, shielded signal connection/screw terminal box that provides two independent 37pin connections. Details on this product are available at www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=196&pf_id=1166.
Chapter 3 Functional Details 82C55 emulation The PCIe-DIO24 emulates the 82C55 Programmable Peripheral Interface (PPI) chip. Measurement Computing's Universal Library and Windows driver supports mode 0 only. Whenever the board is powered on or reset, all pins are set to high-impedance input. Based on standard TTL functionality, these inputs typically float high, and may have enough drive current to turn on external devices.
Chapter 4 Specifications All specifications are subject to change without notice. Typical for 25 °C unless otherwise specified. Digital input / output Table 1. Digital I/O specifications ay in fo . co m .cn 82C55 Emulation 2 banks of 8, 2 banks of 4, programmable by bank as input or output Ports A and B: 74HC245A Port C: 74HC126 Ports A and B: 74HC245A Port C: 74HC125 24 I/O Board Silk Screen Reference: S1 - Default +5V 2.8 volts min @ -2.5 mA 0.3 volts max @ 2.5 mA 2.6 volts min, 3.
PCIe-DIO24 User's Guide Specifications Mechanical Table 4. Environmental specifications Card dimensions 167.4 mm (L) x 111.2 mm (H) x 18.72 mm (W) 6.59" (L) x 4.38" (H) x 0.74" (W) General Table 5. General specifications Bus Type Bus Width PCI Express 1.1 x1 lane PCI Express Main connector and pin out Table 6. Main connector specifications Connector type Compatible cables 37-pin D-type C37FF-x unshielded ribbon cable. x = length in feet. C37FFS-x cable shielded round cable. x = length in feet.
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