Intel® Arria® 10 Core Fabric and General Purpose I/Os Handbook

ID 683461
Date 1/21/2022
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3.5.1.4. 18 x 19 Multiplication Summed with 36-Bit Input Mode

Intel® Arria® 10 variable precision DSP blocks support one 18 x 19 multiplication summed to a 36-bit input.

Use the upper multiplier to provide the input for an 18 x 19 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 35. One 18 x 19 Multiplication Summed with 36-Bit Input Mode for Intel® Arria® 10 Devices