Using BDDs to design ULMs for FPGAs

    FPGA, pp. 24-30, 1996.

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    EI
    Keywords:
    data structuresfield programmable gate arrayslookup tableboolean functionsfpga

    Abstract:

    Many modern FPGAs use lookup table (LUT) logicblocks which can be programmed to realize any functionof a fixed number of inputs. Since permutationsand negation of signals are virtually costless operationsin FPGAs, it is possible to employ logic blocks that realizeonly a subset of all functions, while the rest can beobtained by permuting ...More

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