Patent ID: 8438522
Filing Date: 2013-05-07
Classification: G06F

Abstract:
1. A reconfigurable device including: an arrangement of a plurality of cells and routing resources for transmitting signals between the cells, wherein the plurality of cells comprises carry-select reuse cells, each of the carry-select reuse cells configured to provide for performing non-arithmetic operations using a reuse arithmetic carry chain interconnecting adjacent cells when a non-arithmetic mode input is received to provide a non-arithmetic mode and further configured to perform arithmetic operations using the reuse arithmetic carry chain when an arithmetic mode input is received to provide an arithmetic mode, wherein in the arithmetic mode, the carry-select reuse cells provide for two independent (K−1) input, 1-output functions with K−1 shared inputs; wherein in the non-arithmetic mode, the carry-select reuse cells provide for one K-input 1-output function; wherein the carry-select reuse cells further provide for a K-input, 2-output function; wherein K is a number of inputs of a lookup table associated with the carry select reuse cells.