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LogiCORE products are sold, licensed and supported by Xilinx. They are
developed internally by Xilinx or jointly with a partner. The cores that
Xilinx provides as LogiCORE products typically fall into one of two categories.
The first are high-performance interface cores that require a thorough
understanding and control of the FPGA technology and implementation software
in order to achieve the desired performance and complexity. An example
of a core in this category is the LogiCORE PCI interface. The second category
are cores that benefit from a very specialized implementation in the FPGA.
An example is the LogiCORE DSP modules that are implemented using a unique
algorithm, Distributed Arithmetic. This algorithm fits the lookup-table-based
architecture of the FPGA. The result is outstanding performance and device
utilization, often more than 10 times better than generic HDL descriptions.
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