Developer Guide

FPGA Optimization Guide for Intel® oneAPI Toolkits

ID 767853
Date 7/13/2023
Public

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Digital Signal Processing (DSP) Block

A digital signal processing (DSP) block implements specific arithmetic operations (addition and multiplication) that reduce the need to build equivalent logic from general-purpose ALMs. Some FPGAs support floating-point arithmetic in DSP blocks in addition to integer/fixed-point arithmetic. For more information, refer to Digital Signal Processing.

The following figure illustrates a simplified three-input DSP block consisting of a multiplier (×) and an adder (+):

DSP Block