Intel Agilex® 7 Variable Precision DSP Blocks User Guide

ID 683037
Date 10/02/2023
Document Table of Contents

6.2.1. Pre-adder

With pre-adder, additions or subtractions are done prior to feeding the multiplier.

There are five pre-adder modes:

  • Simple mode
  • Coefficient mode
  • Input mode
  • Square mode
  • Constant mode
Note: When pre-adder is used (pre-adder coefficient/input/square mode), all data inputs to the multiplier must have the same clock setting.