National Instruments NI PCI-6110 - Manual (Page 35)

Chapter 4 Connecting Signals
© National Instruments Corporation 4-5 NI PCI-6110/6111 User Manual
PFI2/CONVERT* DGND Input
Output
PFI2/Convert—As an input, this is a PFI.
As an output, this is the CONVERT* signal.
A high-to-low edge on CONVERT* indicates that an
A/D conversion is occurring.
PFI3/GPCTR1_SOURCE DGND Input
Output
PFI3/Counter 1 Source—As an input, this is a PFI.
As an output, this is the GPCTR1_SOURCE signal. This
signal reflects the actual source connected to the
general-purpose counter 1.
PFI4/GPCTR1_GATE DGND Input
Output
PFI4/Counter 1 Gate—As an input, this is a PFI.
As an output, this is the GPCTR1_GATE signal. This
signal reflects the actual gate signal connected to the
general-purpose counter 1.
GPCTR1_OUT DGND Output Counter 1 Output—This output is from the
general-purpose counter 1 output.
PFI5/UPDATE* DGND Input
Output
PFI5/Update—As an input, this is a PFI.
As an output, this is the UPDATE* signal. A high-to-low
edge on UPDATE* indicates that the AO primary group
is being updated.
PFI6/WFTRIG DGND Input
Output
PFI6/Waveform Trigger—As an input, this is a PFI.
As an output, this is the WFTRIG signal. In timed
AO sequences, a low-to-high transition indicates the
initiation of the waveform generation.
PFI7/STARTSCAN DGND Input
Output
PFI7/Start of Scan—As an input, this is a PFI.
As an output, this is the STARTSCAN signal. This pin
pulses once at the start of each AI scan in the interval
scan. A low-to-high transition indicates the start of the
scan.
PFI8/GPCTR0_SOURCE DGND Input
Output
PFI8/Counter 0 Source—As an input, this is a PFI.
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
Output
PFI9/Counter 0 Gate—As an input, this is a PFI.
As an output, this is the GPCTR0_GATE signal. This
signal reflects the actual gate signal connected to the
general-purpose counter 0.
Table 4-2. Signal Descriptions for I/O Connector Pins (Continued)
Signal Name Reference Direction Description