ADLINK PXIe-9529 - Manual (Page 29)

Operations 19
PXIe-9529
Figure 3-4: External Digital Trigger
PXI STAR Trigger
When PXI STAR is selected as the trigger source, the
PXIe-9529 accepts a TTL-compatible digital signal as a trigger
signal. The trigger occurs when a rising edge or falling edge is
detected at PXI STAR, with trigger polarity configurable by soft-
ware, with minimum pulse width requirement of the digital trig-
ger signal 300 ns.
PXIe_DSTARB Trigger
The PXIe_DSTARB signal, a differential signal transmitted via
the PXI Express Chassis backplane, distributes high-speed,
high-quality trigger signals. When PXIe_DSTARB is selected
as the trigger source, the PXIe-9529 accepts a fast-switching
LVDS digital signal as a trigger signal. Triggering occurs when
a rising edge or falling edge is detected at PXIe_DSTARB, with
trigger polarity configurable by software, with minimum pulse
width requirement 300 ns.
PXI Trigger Bus
The PXIe-9529 utilizes PXI Trigger Bus Numbers 0 through 7
to act as a System Synchronization Interface (SSI). With the
interconnected bus provided by PXI Trigger Bus, multiple mod-
ules are easily synced. When configured as input, the
PXIe-9529 serves as a slave module and can accept trigger
Pulse Width > 10ns Pulse Width > 10ns
Rising edge trigger
event
Falling edge trigger
event