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About This Manual
Conventions Used in This Manual
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82C55A
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PC-DIO-24/PnP User Manual
Appendix C, Register-Level Programming, describes in detail the
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address and function of each of the PC-DIO-24/PnP control and
status registers.
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Appendix D, Using Your PC-DIO-24 (Non-PnP) Board, describes
the differences between the PC-DIO-24 and PC-DIO-24PnP
boards, the PC-DIO-24 board configuration, and the PC-DIO-24
installation into your computer.
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Appendix E, Customer Communication, contains forms you can
use to request help from National Instruments or to comment on
our products.
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The Glossary contains an alphabetical list and description of terms
used in this manual, including abbreviations, acronyms, metric
prefixes, mnemonics, symbols, and terms.
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The Index alphabetically lists the topics in this manual, including
the page where you can find each one.
The following conventions are used in this manual:
This icon to the left of bold italicized text denotes a note, which alerts
you to important information.
This icon to the left of bold italicized text denotes a caution, which
advises you of precautions to take to avoid injury, data loss, or a
system crash.
82C55A refers to the OKI Semiconductor 82C55A CMOS PPI.
Angle brackets containing numbers separated by an ellipsis represent
a range of values associated with a bit or signal name (for example,
PB<7..0>).
Bold text denotes the names of menus, menu items, parameters, dialog
boxes, dialog box buttons or options, icons, windows, Windows 95 tabs,
or LEDs.
Bold italic text denotes a note, caution, or warning.
Italic text denotes emphasis, a cross reference, or an introduction to
a key concept.
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© National Instruments Corporation
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