National Instruments PC-DIO-24 User Manual page 74

N
NI-DAQ driver software, 1-3
O
OBF* signal
description (table), 2-8
mode 1 output timing, 2-10
mode 2 bidirectional timing, 2-11
OBFA* bit, Port C, 4-10
OBFB* bit, Port C, 4-10, 4-12
OKI 82C55A Programmable Peripheral
Interface
capabilities, 1-1
data sheet, C-1 to C-17
modes of operation, 4-1 to 4-2
mode 0, 4-2
mode 1, 4-2
mode 2, 4-2
single bit set/reset feature, 4-2
overview, 3-2
optional equipment for PC-DIO-24, 1-4
to 1-5
P
PA<7..0> signal (table), 2-7
parts locator diagram, 2-2
PB<7..0> signal (table), 2-7
PC I/O channel control circuitry, 3-2
PC<7..0> signal (table), 2-7
PC-DIO-24
block diagram, 3-1
custom cables, 1-4 to 1-5
driving SSR-OAC-5 or SSR-OAC-5A
(note), 1-1
getting started, 1-2
interfacing with other devices, 1-1
optional equipment, 1-4 to 1-5
overview, 1-1 to 1-2
parts locator diagram, 2-2
software programming choices, 1-2.
to 1-4
LabVIEW and LabWindows/CVI
application software, 1-2
NI-DAQ driver software, 1-3
© National Instruments Corporation
register-level programming, 1-4
theory of operation, 3-1 to 3-2
unpacking, 1-6
physical specifications, A-2
Port C
pin assignments
description, 2-7
mode 1 input (figure), 4-8
mode 1 output (figure), 4-11
mode 2 bidirectional bus
(figure), 4-13
signal assignments (table), 2-7
set/reset control words (table), 4-5
status-word bit definitions
mode 1 strobed input, 4-8
mode 1 strobed output, 4-10
mode 2 bidirectional bus (figure),
4-12 to 4-13
power requirements (from PC I/O
channel), A-2
programming. See register-level
programming.
R
RD* signal
description (table), 2-8
mode 1 input timing, 2-9
mode 2 bidirectional timing, 2-11
register-level programming, 4-1 to 4-16
82C55A modes of operation, 4-1 to 4-2
compared with other software
options, 1-4
interrupt handling, 4-15 to 4-16
interrupt enable signals for all mode
combinations (table), 4-16
interrupt programming examples, 4-14
to 4-15
mode 0 basic I/O, 4-5 to 4-7
configurations (table), 4-6
overview, 4-5
programming example, 4-6 to 4-7
mode 1 strobed input, 4-7 to 4-9
control words (figures), 4-7
Port C pin assignments (figure), 4-8
Port C status-word bit
definitions, 4-8
programming example, 4-9
Index-3
Index
PC-DIO-24 User Manual