© National Instruments Corporation Index-1 PC-DIO-24 User Manual
Index
Special Characters
+5 V signal (table), 2-7
82C55A Programmable Peripheral Interface.
See OKI 82C55A Programmable
Peripheral Interface.

A

ACK* signal
description (table), 2-8
mode 1 output timing, 2-10
mode 2 bidirectional timing, 2-11
address, setting. See base I/O address.
address decoder, 3-2

B

base I/O address
example switch settings (table), 2-3
factory settings (table), 2-1
setting, 2-2 to 2-3
block diagram of PC-DIO-24, 3-1
board configuration. See configuration.
bus transceivers, 3-2

C

cables, custom, 1-4 to 1-5
configuration, 2-1 to 2-5. See also
installation; signal connections.
jumper and switch settings, 2-1 to 2-5
base I/O address settings, 2-1 to 2-3
factory settings, (table), 2-1
interrupt enable settings, 2-4
interrupt level settings, 2-4 to 2-5
parts locator diagram, 2-2
control words
control-word formats (figure), 4-4
mode 1 strobed input (figure), 4-7
mode 1 strobed output (figure), 4-9
mode 2 bidirectional bus (figure), 4-12
Port C set/reset control words
(table), 4-5
custom cables, 1-4 to 1-5
customer communication, xiii, D-1

D

DATA signal
description (table), 2-8
mode 1 input timing, 2-9
mode 1 output timing, 2-10
mode 2 bidirectional timing, 2-11
digital I/O connector, 3-2
digital I/O specifications, A-1
digital logic level specifications
input signals (table), A-1
output signals (table), A-1
documentation
conventions used in manual, xii
National Instruments
documentation, xii-xiii
organization of manual, xi-xii
related documentation, xiii

E

environment specifications, A-1
equipment, optional, 1-4 to 1-5

F

fax technical support, D-1
fuse, replacement, 2-7

G

getting started with PC-DIO-24, 1-2
GND signal (table), 2-7