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

ID 683665
Date 10/18/2023
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3.6.5. 18 x 18 Multiplication Summed with 36-Bit Input Mode

Stratix® 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 data1[17..0] and data1[35..18] signals are concatenated to produce a 36-bit input.

Figure 46. One 18 x 18 Multiplication Summed with 36-Bit Input Mode for Stratix V Devices