Digilent NEXYS 3 FPGA Development Board

The Digilent Nexys 3 is a comprehensive FPGA development board built around the Xilinx Spartan-6 LX16 FPGA. Although it has been discontinued, it remains a valuable tool for learning and prototyping digital systems.

🧠 Key Specifications
FPGA: Xilinx Spartan-6 LX16 (XC6SLX16-CS324)
Memory:

16 MB Cellular RAM (x16)
16 MB Parallel Phase Change Memory (PCM)
16 MB SPI (quad-mode) PCM
Clock: 100 MHz fixed-frequency oscillator
Expansion Ports:

4 × 12-pin Pmod™ connectors
40-pin VHDCI high-speed expansion connector
Connectivity:

10/100 Ethernet PHY
USB 2.0 Type-A host port (for mouse, keyboard, or memory stick)
USB-UART bridge
Digilent Adept USB2 port for power, programming, and data transfers
User I/O:

8 slide switches
5 push buttons
8 LEDs
4-digit 7-segment display
Display: 8-bit VGA output

The Nexys 3 is suitable for a range of applications, including:

Embedded processor designs using Xilinx’s MicroBlaze
Digital system prototyping
Learning and experimenting with VHDL or Verilog
Implementing projects like digital clocks, state machines, and VGA-based displays