Waveshare CoreEP4CE6 EP4CE6 EP4CE6E22C8N FPGA ALTERA Cyclone IV Development Board Full I/O Expander JTAG Interface onboard Serial Configuration Device EPCS16SI8N integrated FPGA basic circuit, such as clock circuit onboard nCONFIG button, RESET button, 4 x LEDs all the I/O ports are accessible on the pin headers 2.54mm header pitch design, suitable for being plugged-in your application system