Intel FPGA Integer Arithmetic IP Cores User Guide

ID 683490
Date 10/05/2020
Document Table of Contents

8.1.3. Pre-load Constant

The pre-load constant controls the accumulator operand and complements the accumulator feedback. The valid LOADCONST_VALUE ranges from 0–64. The constant value is equal to 2 N , where N = LOADCONST_VALUE. When the LOADCONST_VALUE is set to 64, the constant value is equal to 0. This function can be used as biased rounding.

The following figure shows the pre-load constant implementation.

Figure 19. Pre-load Constant

Refer to the following IP cores for other multiplier implementations:

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