The Wei Xi Technology UBD‑Spartan3‑ST3 experimental board user manual describes power, interfaces, LEDs, buttons, DIP switches, 7‑segment display, clock…
This manual provides a complete guide to the UBD‑Spartan3‑ST3 experimental board, detailing each component, its connections and operation. It is intended for users who want to develop and test FPGA designs on the board.
The document is organized into chapters covering Power supply, RS‑232 interface, LED indicators, Push‑button switches, DIP switches, 7‑segment displays, Clock circuitry, User connectors (JC1‑JC4), Download interface, and FPGA configuration and features. This manual is written in Chinese.
| FPGA | Xilinx Spartan‑3 XC3S200 (PQFP‑208) |
|---|---|
| Block RAM | 12 × 18 K‑bit |
| Multipliers | 12 × 18 × 18 hardware multipliers |
| Digital Clock Managers | 4 |
| I/O Pins | 141 usable pins |
| Input Power | +5 V / 3 A |
| Regulated Voltages | 3.3 V, 2.5 V, 1.5 V, 1.2 V |
| RS‑232 Transceiver | MAX3221 |
| PROM | XCF01S‑VO20 |
| LEDs | 4 user LEDs |
| Push‑Buttons | 4 buttons |
| DIP Switches | 4 switches |
| 7‑Segment Displays | 4 units |
The board uses a Xilinx Spartan‑3 XC3S200 FPGA in a PQFP‑208 package.
It accepts a single +5 V/3 A input and provides regulated 3.3 V, 2.5 V, 1.5 V and 1.2 V rails for the FPGA and peripherals.
The board has four user LEDs, four push‑button switches, four DIP switches, and four seven‑segment displays.
The RS‑232 interface is implemented with a MAX3221 transceiver.