Overview

Core3S250E is an FPGA core board that features an XC3S250E device onboard, supports further expansion.

• onboard 1pcs XCF02S
• 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
• onboard JTAG debugging/programming interface
• 2.54mm header pitch design, suitable for being plugged-in your application system

What's On Board

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

Photos

Note:
Core3S250E provides JTAG debugging interface, yet does NOT integrate any debugging function, a debugger is required.
Mother board and programmer/debugger in the photos are NOT included in the price.

Debugging/Programming Interface

The Core3S250E FPGA core board integrates JTAG interface for programming/debugging.

JTAG Signal Names & Description

JTAG Header Pinout

Development Resources

Core3S250E FPGA core board comes with a User Guide CD including development resources listed as below:

• Related software (Xilinx ISE 12 - supports Winxp/Win7, doesn't support Win8)
• Demo code (Verilog, VHDL)
• Schematic (PDF)
• FPGA development documentations

Wiki: www.waveshare.com/wiki/Core3S250E