1. XC3S250E:the XILINX Spartan-3E FPGA device which features:
- Operating Frequency: 50MHz
- Operating Voltage: 1.15V~3.3V
- Package: QFP144
- I/Os: 80
- LEs: 250K
- RAM: 216kb
- DCMs: 4
- Debugging/Programming: supports JTAG
2. AMS1117-3.3, 3.3V voltage regulator
3. AMS1117-2.5, 2.5V voltage regulator
4. AMS1117-1.2, 1.2V voltage regulator
5. XCF02S, onboard serial FLASH memory, for storing code
6. Power indicator
7. LEDs
8. FPGA initialization indicator
9. Reset button
10. nCONFIG button: for re-configuring the FPGA chip, the equivalent of power reseting
11. Power switch
12. 50M active crystal oscillator
13. 5V DC jack
14. JTAG interface: for debugging/programming
15. FPGA pins expander, VCC, GND and all the I/O ports are accessible on expansion connectors for further expansion
16. LED jumpers