Intel® Stratix® 10 Variable Precision DSP Blocks User Guide

ID 683832
Date 8/13/2021
Document Table of Contents

7.2.3. 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 41. Pre-load Constant