EP1SGX10DF672C6 Datasheet, PDF (113/272 Pages) Altera Corporation – Section I. Stratix GX Device Family Data Sheet

Stratix GX Architecture
the capabilities for dynamic and mixed sign multiplications are handled
differently. The following list provides the largest functions that can fit
into a single DSP block.
■ 36 × 36-bit unsigned by unsigned multiplication
■ 36 × 36-bit signed by signed multiplication
■ 35 × 36-bit unsigned by signed multiplication
■ 36 × 35-bit signed by unsigned multiplication
■ 36 × 35-bit signed by dynamic sign multiplication
■ 35 × 36-bit dynamic sign by signed multiplication
■ 35 × 36-bit unsigned by dynamic sign multiplication
■ 36 × 35-bit dynamic sign by unsigned multiplication
■ 35 × 35-bit dynamic sign multiplication when the sign controls for
each operand are different
■ 36 × 36-bit dynamic sign multiplication when the same sign control
is used for both operands
1 This list only shows functions that can fit into a single DSP block.
Multiple DSP blocks can support larger multiplication
functions.
Figure 4–28 shows one of the columns with surrounding LAB rows.
Altera Corporation
February 2005
4–47
Stratix GX Device Handbook, Volume 1