Programmable Function Input Connections; Figure 4-10. Timing I/O Connections - National Instruments VXI-MIO Series User Manual

Chapter 4 Signal Connections

Programmable Function Input Connections

VXI-MIO Series User Manual
Connections section later in this chapter. The general-purpose timing
signals are explained in the General-Purpose Timing Signal
Connections section later in this chapter.
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 of the
VXI-MIO Series module PFI pins.
TRIG1 CONVERT*
Source Source
There are a total of 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 of the PFIs when you want external
control. This flexible routing scheme reduces the need to change the
physical wiring to the module I/O connector for different applications
requiring alternative wiring.
You can individually enable each of the PFI pins to output a specific
internal timing signal. For example, if you need the CONVERT* signal
as an output on the I/O connector, your software can turn on the output
I/O Connector

Figure 4-10. Timing I/O Connections

4-24
PFI0/TRIG1
PFI2/CONVERT*
DGND
VXI-MIO Series Board
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