Stratix® V Device Handbook: Volume 1: Device Interfaces and Integration

ID 683665
Date 10/18/2023
Public
Document Table of Contents

3.6.4. Sum of Square Mode

The Stratix® V variable precision DSP block can implement one sum of square mode.

Figure 44. One Sum of Square Mode Equation


You can feed the four 18-bit inputs into the pre-adder block to convert b and d input as two’s complement numbers to perform subtraction, if required.

You can feed each 18-bit pre-adder block output into both multiplicand and multiplier inputs of an 18 x 18 multiplier to generate a square result.

Figure 45. One Sum of Square Mode in a Variable Precision DSP Block for Stratix® V Devices