Pre-Adder Block Applications

Versal ACAP DSP Engine Architecture Manual (AM004)

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1.2.1 English

DSP58 users can benefit from the pre-adder in several applications ranging from wireless applications (for example, in algorithms as in the Long-Term Evolution specification), in generic filtering (FIR and IIR), in video processing (for example, alpha blending), and many others. The most common use for the pre-adder is to pre-add corresponding values of a symmetric FIR filter tap delay line.

Refer to Pre-Adder Used as a Multiplexer for information on how the pre-adder can be used as a 2:1 multiplexer to dynamically select between A[26:0] and D[26:0].