Figure 4-10. timing i/o connections, Programmable function input connections, Programmable function input connections -20 – National Instruments NI 6014 User Manual
Page 46
Chapter 4
Connecting Signals
4-20
ni.com
All digital timing connections are referenced to DGND. This reference
is demonstrated in Figure 4-10, which shows how to connect an external
TRIG1 source and an external CONVERT* source to two PFI pins on the
NI 6013/6014.
Figure 4-10. Timing I/O Connections
Programmable Function Input Connections
There are 13 internal timing signals that you can externally control from the
PFI pins. The source for each of these signals is software-selectable from
any PFI pin when you want external control. This flexible routing scheme
reduces the need to change the physical wiring to the device I/O connector
for different applications requiring alternative wiring.
You can individually enable each PFI pin to output a specific internal
timing signal. For example, if you need the CONVERT* signal as an output
on the I/O connector, software can turn on the output driver for the
PFI2/CONVERT* pin.
Note
Be careful not to drive a PFI signal externally when it is configured as an output.
DGND
PFI0/TRIG1
PFI2/CONVERT*
I/O Connector
TRIG1
Source
CONVERT*
Source