PXI/PXIe FPGA I/O Items

Figure 1. FPGA I/O Node

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You can use an FPGA I/O Node, configured for reading and writing, with your FlexRIO Integrated I/O device. The FPGA I/O Node is located on the FPGA I/O Functions palette and performs specific FPGA I/O operations on your FPGA target.

You can select the following PXI/PXI Express FPGA I/O items for the FlexRIO with Integrated I/O devices.

Table 2. PXI/PXIe FPGA I/O Items
FPGA I/O Item Description
PXI_Clk10 Controls the 10 MHz clock on the PXI backplane. You can use this clock to synchronize multiple PXI modules. Use an FPGA I/O Node configured for reading across this channel.
Table 2. PXI Express FPGA I/O Items
Terminal Description
PXIe_DStarB Controls the differential star trigger that creates connections between a PXI Express system timing module and a peripheral device. PXIe_DStarB distributes trigger signals from the system timing slot to the peripherals (input). Use an FPGA I/O Node configured for reading to access this channel.
PXIe_DStarC Controls the differential star trigger that creates connections between a PXI Express system timing module and a peripheral device. PXIe_DStarC sends trigger or clock signals from the peripherals to the system timing slot (output). Use an FPGA I/O Node configured for writing to access this channel.
PXIe_Sync100 Controls the reference signal that is synchronous to the rising edge of PXIe_CLK100. Use PXIe_Sync100 to synchronize multiple modules in a PXI Express system. Use an FPGA I/O Node configured for reading to access this channel.