The demanding timing and synchronization requirements of instrumentation systems are met
by the integrated features of PXI Express. Not only are the trigger bus, 10 MHz system
reference clock, and star trigger bus available in PXI retained by PXI Express, but new timing
and synchronization features that include a 100 MHz differential system reference clock for
the synchronization of multiple modules and three differential star trigger buses for the
distribution of precise clock and trigger signals have been added. Differential timing and
synchronization signals provide PXI Express systems with increased noise immunity and the
ability to transmit clock signals at higher frequencies.
PXIe-8821
Description
The PXIe-8821 PXI Express/CompactPCI Express embedded controller is a high-performance
PXI Express/CompactPCI Express-compatible system controller. The PXIe-8821 controller
integrates standard I/O features in a single unit by using state-of-the-art packaging. Combining
a PXIe-8821 embedded controller with a PXI Express-compatible chassis, such as the
PXIe-1085, results in a fully PC-compatible computer in a compact, rugged package.
The PXIe-8821 has an Intel
®
Core
™
i3 4110E processor (2.6 GHz dual-core processor), all the
standard I/O, and a 320 GB (or larger) hard drive.
The standard I/O on each module includes one DisplayPort video, one RS-232 serial port, two
Hi-Speed USB ports, two SuperSpeed USB ports, one Gigabit Ethernet, a reset button, and a
PXI trigger.
Functional Overview
The PXIe-8821 is a modular PC in a PXI Express 3U-size form factor. The following figure is
a functional block diagram of the PXIe-8821. Following the diagram is a description of each
logic block shown.
PXIe-8821 User Manual
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© National Instruments
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