Cyclone V Device Handbook: Volume 1: Device Interfaces and Integration

ID 683375
Date 7/05/2022
Document Table of Contents

3.6.4. 18 x 18 Multiplication Summed with 36-Bit Input Mode

Cyclone® V variable precision DSP blocks support one 18 x 18 multiplication summed to a 36-bit input.

Use the upper multiplier to provide the input for an 18 x 18 multiplication, while the bottom multiplier is bypassed. The datab_y1[17..0] and datab_y1[35..18] signals are concatenated to produce a 36-bit input.

Figure 30. One 18 x 18 Multiplication Summed with 36-Bit Input Mode for Cyclone® V Devices

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