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Chapter 6
Programmable Function Interfaces (PFI)
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
For more information about PFI lines, refer to the
I/O. For a list of the PFI pins and the signals they can output, refer to the
Descriptions
section in Chapter 2,
6-2 | ni.com
Do not drive a PFI signal externally when it is configured as an output.
I/O
Connector.
Power-On States
section of Chapter 4,
Digital
I/O Connector Signal
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