Chapter 9 Digital Routing and Clock Generation
© National Instruments 9-9 X Series User Manual
Note that in a PXI chassis with more than eight slots, the PXI trigger lines
may be divided into multiple independent buses. Refer to the
documentation for your chassis for details.
PXI_STAR Trigger
In a PXI Express system, the Star Trigger bus implements a dedicated
trigger line between the system timing slot and the other peripheral slots.
The Star Trigger can be used to synchronize multiple devices or to share a
common trigger signal among devices.
A Star Trigger controller can be installed in this system timing slot to
provide trigger signals to other peripheral modules. Systems that do not
require this functionality can install any standard peripheral module in this
system timing slot.
An X Series device receives the Star Trigger signal (PXI_STAR) from a
Star Trigger controller. PXI_STAR can be used as an external source for
many AI, AO, and counter signals.
An X Series device is not a Star Trigger controller. An X Series device can
be used in the system timing slot of a PXI system, but the system will not
be able to use the Star Trigger feature.
PXI_STAR Filters
You can enable a programmable debouncing filter on each PFI, RTSI,
PXIe-DSTAR, or PXI_STAR signal. Refer to the PFI Filters section of
Chapter 8, PFI, for more information.
PXI Express devices can provide high-quality and high-frequency
point-to-point connections between each slot and a system timing slot.
These connections come in the form of three low-voltage differential star
triggers that create point-to-point, high-frequency connections between a
PXI Express system timing module and a peripheral device. Using multiple
connections enable you to create more applications because of the
increased routing capabilities.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
To Next Page
Loading...
Need help?
General
