Patent ID: 8726213

Claim:
An integrated circuit (“IC”) comprising: a configurable logic circuit with n input terminals for configurably performing a set of functions, wherein n is a number greater than 1 and each of the n input terminals receives a user-design signal; and a set of input select interconnect circuits for providing the user design signals to the input terminals of the configurable logic circuit, each input select interconnect circuit having a set of select terminals that is controlled by a first set of configuration data, wherein: (i) when the first set of configuration data has a first value, the set of select terminals receives a second set of configuration data such that the input select interconnect circuit selects one user design signal to route to an input terminal of the configurable logic circuit; and (ii) when the first set of configuration data has a second value, at least one select terminal in the set of select terminals receives a user design signal that causes the input select interconnect circuit to perform a particular m-input logic function with the configurable logic circuit, wherein m is a number greater than n.