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.
Refer to the following IP cores for other multiplier implementations: