©
National Instruments Corporation
9
TB-2705 PXI Terminal Block
PFI5/UPDATE*
DGND
Input
PFI5/Update—As an input, this is one
of the PFIs.
Output
As an output, this is the UPDATE*
signal. A high-to-low edge on
UPDATE* indicates that the analog
output waveform generation group is
being updated.
PFI6/WFTRIG
DGND
Input
PFI6/Waveform Trigger—As an input,
this is one of the PFIs.
Output
As an output, this is the WFTRIG
signal. In timed analog output
sequences, a low-to-high transition
indicates the initiation of the waveform
generation.
PFI7
DGND
Input
PFI7—As an input, this is one of the
PFIs. You cannot use PFI7 as an
output.
PFI8/GPCTR0_SOURCE
DGND
Input
PFI8/Counter 0 Source—As an input,
this is one of the PFIs.
Output
As an output, this is the
GPCTR0_SOURCE signal. This
signal reflects the actual source
connected to the general-purpose
counter 0.
PFI9/GPCTR0_GATE
DGND
Input
PFI9/Counter 0 Gate—As an input,
this is one of the PFIs.
Output
As an output, this is the
GPCTR0_GATE signal. This signal
reflects the actual gate signal
connected to the general-purpose
counter 0.
GPCTR0_OUT
DGND
Output
Counter 0 Output—This is the
general-purpose counter 0 output.
FREQ_OUT
DGND
Output
Frequency Output—This is the
frequency generator output.
Table 2.
TB-2705 Terminal Block Waveform Generation Signal Descriptions (Continued)
Signal Name
Reference
Direction
Description
