Altera Stratix - DSP Block Overview

6–2 Altera Corporation
Stratix Device Handbook, Volume 2 July 2005
DSP Block Overview
DSP Block
Overview
Each Stratix and Stratix GX device has two columns of DSP blocks that
efficiently implement multiplication, multiply accumulate (MAC), and
filtering functions. Figure 6–1 shows one of the columns with
surrounding LAB rows. You can configure each DSP block to support:
■ Eight 9 × 9 bit multipliers
■ Four 18 × 18 bit multipliers
■ One 36 × 36 bit multiplier
Figure 6–1. DSP Blocks Arranged in Columns
The multipliers can then feed an adder or an accumulator block,
depending on the DSP block operational mode. Additionally, you can use
the DSP block input registers as shift registers to implement applications
such as FIR filters efficiently. The number of DSP blocks per column
DSP Block
Column
8 LAB
Rows
DSP Block