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8-3
•
Frequency Output
•
PXI_STAR
•
RTSI <0..7>
•
Analog Comparison Event
•
Change Detection Event
•
DI Sample Clock* (di/SampleClock)
•
DO Sample Clock* (do/SampleClock)
Note
Signals with a * are inverted before being driven to a terminal; that is, these
signals are active low.
Using PFI Terminals as Static Digital I/Os
Each PFI can be individually configured as a static digital input or a static digital output. When
a terminal is used as a static digital input or output, it is called P1.
x
or P2.
x
. On the I/O connector,
each terminal is labeled PFI
x
/P1.
x
or PFI
x
/P2.
x
.
In addition, M Series devices have up to 32 lines of bidirectional DIO signals.
Connecting PFI Input Signals
All PFI input connections are referenced to D GND. Figure 8-2 shows this reference, and how
to connect an external PFI 0 source and an external PFI 2 source to two PFI terminals.
Figure 8-2.
PFI Input Signals Connections
PFI 0
S
o
u
rce
PFI 2
S
o
u
rce
M
S
erie
s
Device
D GND
PFI 2
PFI 0
I/O Connector
Summary of Contents for PCI-6281
Page 1: ...PCI 6281...
