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

ID 683213
Date 10/18/2023
Public
Document Table of Contents

3.6.5. 18 x 18 Multiplication Summed with 36-Bit Input Mode

Arria® 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 following signals are concatenated to produce a 36-bit input:

  • Arria® V GX, GT, SX, and ST devices: datab_y1[17..0] and datab_y1[35..18]
  • Arria® V GZ devices: data1[17..0] and data1[35..18]
Figure 55. One 18 x 18 Multiplication Summed with 36-Bit Input Mode for Arria V GX, GT, SX, and ST Devices


Figure 56. One 18 x 18 Multiplication Summed with 36-Bit Input Mode for Arria V GZ Devices