Chapter 6
Programmable Function Interfaces (PFI)
Analog Output Series User Manual
6-2
ni.com
Outputs
You can also individually enable each PFI pin to output a specific internal
timing signal. For example, if you need the Counter 0 Source signal as an
output on the I/O connector, software can turn on the output driver for the
PFI 8/CTR 0 SRC pin. This signal, however, cannot be output on any other
PFI pin.
Not all timing signals can be output. PFI pins are labeled with the timing
signal that can be output on it. For example, PFI 8 is labeled PFI 8/CTR 0
Source. The following timing signals can be output on PFI pins.
•
AO Start Trigger Signal
•
AO Sample Clock Signal
•
Counter 0 Source Signal
•
Counter 0 Gate Signal
•
Counter 1 Source Signal
•
Counter 1 Gate Signal
Caution
Do not drive a PFI signal externally when it is configured as an output.
For more information about PFI lines, refer to the
section
of Chapter 4,
. For a list of the PFI pins and the signals they can
output, refer to the
I/O Connector Signal Descriptions
section in Chapter 2,
