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App note: Using a microprocessor to configure Xilinx FPGAs via slave serial or selectMAP mode

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XAPP502

Great app note from Xilinx on configuring their FPGA through slave serial and parallel selectMAP mode

This application note describes a technique for configuring an FPGA from an embedded processor. Three common components are required: an embedded microprocessor, some non-volatile memory, and a CPLD. Cost, as well as real estate, can be reduced if the function of a dedicated configuration device, such as a PROM, can be integrated within these three components.
Note: Some systems might not require a CPLD if the microprocessor has a sufficient number of general-purpose I/O (GPIO) pins available. For these systems, the Xilinx FPGA can be configured directly by the microprocessor.

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