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FPGA

FPGA stands for “Field Programmable Gate Array”. As you may already know, FPGA essentially is a huge array of gates which can be programmed and reconfigured any time anywhere. “Huge array of gates” is an oversimplified description of FPGA. FPGA is indeed much more complex than a simple array of gates. Some FPGAs has built-in hard blocks such as Memory controllers, high-speed communication interfaces, PCIe Endpoints etc.. But the point is, there are a lot of gates inside the FPGA which can be arbitrarily connected together to make a circuit of your choice. More or less like connecting individual logic gate ICs (again oversimplified but a good mental picture nonetheless). FPGAs are manufactured by companies like Xilinx, Altera, Microsemi etc… FPGAs are fundamentally similar to CPLDs but CPLDs are very small in size and capability compared to FPGAs.

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