Patent ID: 7472155

Claim:
An integrated circuit comprising: a plurality of digital signal processing (DSP) elements, including a first DSP element and a second DSP element, each of the first DSP element and the second DSP element having substantially identical structure and each of the first DSP element and the second DSP element comprising a respective switch connected to a respective hardwired adder; a first signal line and a second signal line connecting the first DSP element to the second DSP element; the first signal line connecting a first output cascade port of the first DSP element to a first input cascade port of the second DSP element; the second signal line connecting a second output cascade port of the first DSP element to a second input cascade port of the second DSP element; the first output cascade port being on an input side of a multiplier of the first DSP element; the first input cascade port being on an input side of a multiplier of the second DSP element; the second output cascade port being on an output side of both the hardwired adder of the first DSP element and the multiplier of the first DSP element; and the second input cascade port being on an input side of the hardwired adder of the second DSP element and on an output side of the multiplier of the second DSP element; wherein the first DSP element is connected to the second DSP element for cascading thereof on pre- and post-multiplier sides of the second DSP element.