National Instruments NI PXIe-6672 - Manual (Page 24)

Chapter 3 Hardware Overview
© National Instruments Corporation 3-11 NI PXIe-6672 User Manual
Figure 3-4 provides a more detailed view of the Selection Circuitry
referenced in Figure 3-3.
Figure 3-4. Signal Selection Circuitry Diagram
Determining Sources and Destinations
All signal routing operations can be characterized by a source (input) and
a destination. In addition, synchronous routing operations must also define
a third signal known as the synchronization clock. Refer to the
Choosing
the Type of Routing section for more information on synchronous versus
asynchronous routing.
PFI<0..5>
PXI_TRIG<0..7>
PXI_STAR<0..16>
Software Trigger
GND
CLK
CLK/N
CLK/M
SYNCHR
ONIZA
TION
CLOCKS
SOURCE
DESTINA
TION
CLKIN*
* CLKIN only valid for PXI_STAR