Field programmable gate array Wikipedia. A field programmable gate array FPGA is an integrated circuit designed to be configured by a customer or a designer after manufacturing hence field programmable. The FPGA configuration is generally specified using a hardware description language HDL, similar to that used for an application specific integrated circuit ASIC. Circuit diagrams were previously used to specify the configuration, as they were for ASICs, but this is increasingly rare. FPGAs contain an array of programmablelogic blocks, and a hierarchy of reconfigurable interconnects that allow the blocks to be wired together, like many logic gates that can be inter wired in different configurations. Logic blocks can be configured to perform complex combinational functions, or merely simple logic gates like AND and XOR. In most FPGAs, logic blocks also include memory elements, which may be simple flip flops or more complete blocks of memory. 1Technical designeditContemporary field programmable gate arrays FPGAs have large resources of logic gates and RAM blocks to implement complex digital computations. As FPGA designs employ very fast IOs and bidirectional data buses, it becomes a challenge to verify correct timing of valid data within setup time and hold time. Altera Quartus Ii Web Edition License Verification
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