Creative Uses for Spartan-3 Dedicated Resources

The Spartan-3 FPGA logic resources include not only the four-input look-up tables that have become the standard building block of FPGAs, but also dedicated resources that provide fast and efficient implementation of special functions. These resources are automatically selected and optimized by Mentor Graphics synthesis tools and Xilinx implementation tools. However, the user should consider creative ways of applying these resources when the design is created.