Chapter4 ConnectingSignals
NI6013/6014 User Man ual 4-36 ni.com
Figure4-31. GPCTR0_OUTSignal Timing
GPCTR0_UP_DOWN Signal
Thissignal can be externally in put on the DIO6 pin and is not available as
anoutput on the I/O connector. The general-purpose counter 0 counts down
when this pin is at a logic low and count up when it is at a logic high.
You can disable this input so that software can control the up-down
functionality and leave the DIO6 pin free for general use.
GPCTR1_SOURCE Signal
Any PFIpin can ext ernally input the GPCTR1_SOURCE signal, which
isavailable as an output on the PFI3/GPCTR1_SOURCE pin.
Asan input, GPCTR1_SOURCE is configured in the edge-detection mode.
Youcan select any PFI pin as the source for GPCTR1_SOURCE and
configurethe polarity selection for either ri sing orfalling edg e.
As anoutput, GPCTR1_SOURCEmonitors the actual clock connected to
general-purpose counter 1, evenif the source clock is being externally
generated byan other PFI. This output is set to high-impedance at startup.
GPCTR0_SOURCE
GPCTR0_OUT
GPCTR0_OUT
(ToggleOutput on TC)
(Pulseon TC)
TC