Guelph University
School of Engineering
ENG6530: Reconfigurable Computing Systems

Spartan 6 (NEXYS3) Block Ram:

Xilinx XST User Guide for Virtex-6 and Spartan-6 Devices (Memory on page 173)

How to use the On Board 16MB Memory of NEXYS3 via VHDL

Block and Distributed RAM on Xilinx FPGAs

Block RAM on FPGAs: YouTube