Index
653X User Manual I-4 ni.com
rate of data transfer, 2-18 to 2-19
triggering data transfer, 2-19 to 2-21
width of data to transfer, 2-17
delay, programmable, handshaking
protocol, 2-8 to 2-9
digital I/O specifications, A-1 to A-2
digital lines. See static digital lines.
digital patterns and waveforms. See pattern
I/O.
DIOA<0..7> signal (table), C-4
DIOB<0..7> signal (table), C-4
DIOC<0..7> signal (table), C-5
DIOD<0..7> signal, description (table), C-5
DMA or interrupt transfers
change detection, 2-31
devices that support DMA transfers
(table), E-2
handshaking I/O, 2-10
pattern I/O, 2-22
DPULL signal
description (table), C-5
power-on state, D-5
E
edge-based handshaking protocols. See signal
edge-based handshaking protocols.
environment specifications, A-4 to A-5
equipment, optional, for connecting
signals, C-7
F
finite data transfer. See continuous or finite
data transfer.
G
GND signal, description (table), C-5
H
handshaking I/O, 2-6 to 2-17. See also
handshaking I/O timing diagrams.
ACK/REQ signal polarity, 2-8
connecting signals, 2-10 to 2-11
continuous or finite data
transfer,2-9 to 2-10
continuous input, 2-9
continuous output, 2-9 to 2-10
DMA or interrupt transfers, 2-10
finite, 2-9
direction of data transfer, 2-6
maximum transfer rates (table),
E-1toE-2
port and timing controller combinations
(table), 2-6
programmable delay, 2-8 to2-9
programming, 2-12 to 2-17
buffered handshaking I/O in NI-DAQ
(figure), 2-13
handshaking input in
LabVIEW/LabVIEW RT
(figure), 2-15
handshaking output in
LabVIEW/LabVIEW RT
(figure), 2-16
unbuffered handshaking I/O in
NI-DAQ (figure), 2-14
protocols
burst protocol, 2-7 to 2-8
deciding on a protocol, 2-7
startup sequence, 2-11 to 2-12
controlling line polarities, 2-12
initialization order, 2-11 to 2-12
when to use (table), 2-1
width of data to transfer, 2-6
handshaking I/O timing diagrams, 3-4 to 3-40
8255-emulation protocol, 3-12 to 3-17
input handshaking sequence
(figure),3-12to3-17
input state machine (figure), 3-14