DESCRIPTION

The LSH32 is a 32-bit high speed shifter designed for use in floating point normalization, word pack/unpack, field extraction, and similar applications. It has 32 data inputs, and 16 output lines. Any shift configuration of the 32 inputs, including circular (barrel) shifting, left shifts with zero fill, and right shift with sign extend are possible. In addition, a built-in priority encoder is provided to aid floating point normalization.

FEATURES

❑ 32-bit Input, 32-bit Output Multiplexed to 16 Lines

❑ Full 0-31 Position Barrel Shift Capability

❑ Integral Priority Encoder for 32-bit Floating Point Normalization

❑ Sign-Magnitude or Two’s Complement Mantissa Representation

❑ 32-bit Linear Shifts with Sign or Zero Fill

❑ Independent Priority Encoder Outputs for Block Floating Point

❑ 68-pin PLCC, J-Lead