CMOD S6 Xilinx Spartan 6 Board Xilinx Spartan-6 XC6SLX4-2CPG196 FPGA 16Mbyte Spansion Quad SPI Flash for storing FPGA configurations and/or user data 46 FPGA GPIO signals brought to DIP pins Two on-board clock sources, 4 user LEDs and 2 user buttons On-board Adept USB2 port for configuration, test and communications interfaces