Apparatus and method for the arithmetic over-ride of look up...

Electronic digital logic circuitry – Multifunctional or programmable – Having details of setting or programming of interconnections...

Reexamination Certificate

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C326S037000, C326S047000

Reexamination Certificate

active

07812633

ABSTRACT:
A programmable logic device having a Logic Element with an N-stage Look Up Table (LUT), dedicated hardware for performing a non-LUT logic function, and an over-ride element configured to selectively force a muxing stage within the N-stage LUT to select either one or more LUT configuration bit inputs or the output of the non-LUT logic function as the output of the LUT. In various embodiments, the non-LUT functions can include addition, subtraction, multiplication, division, digital signal processing, memory storage, etc.

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