Chapter3 HardwareOverview
RTSeries DAQ Device User Manual 3-2 ni.com
Figure3-2. PXIRT Series Data Acquisition Hardware
Processor BoardThe7030 processor board contains a microprocessor and support circuitry ,
assho wn in Figure 3-3. The support circuitry includes a chipset with PCI
controllerand ISA bridge, main memory (DRAM), L2 cache (SRAM), and
BIOS. The RT Engine software uses this embedded processor system for
its execution platform.
The DAQdaughterboard resides on the embedded PCI bus, as shown in
Figure 3-3, providinga high-performance system for comm unication
between the software running on the processor and the DAQ
daughterboard.
The processor board also holds the shared memory that communicates
betweenthe host system a nd the embedded processor.Refer to the Host to
RTSeries DAQDevice Communication section of this chapter and to
Chapter3, SoftwareOverview,oftheLabVIEWReal-Time User Manual,
for more information about using shared memory in your applications.
1 Processor Board 2 DAQ Daughterboard
1
2