10 www.xilinx.comSpartan-3A/3AN FPGA Starter Kit Board User GuideUG334 (v1.1) June 19, 2008Preface: About This Guide RAcknowledgmentsXilinx wishes to thank the following companies for their support of the Spartan-3A/3ANStarter Kit board:• STMicroelectronics for the 32 Mbit parallel NOR Flash and 16 Mbit SPI serial Flashmemories• Atmel for the 16 Mbit SPI serial DataFlash memory• Linear Technology for the SPI-compatible A/D and D/A converters and theprogrammable pre-amplifier• SMSC for the 10/100 Ethernet PHY• National Semiconductor for the four-rail voltage regulators that power the FPGA andand all peripheral components• Xilinx, Inc. Configuration Solutions for the XCF04S Platform Flash PROM andsupport for the embedded USB programmerGuide ContentsThis manual contains the following chapters:• Chapter 1, “Introduction and Overview,” provides an overview of the key features ofthe Spartan-3A/3AN Starter Kit board.• Chapter 2, “Switches, Buttons, and Rotary Knob,” defines the switches, buttons, andknobs present on the Spartan-3A/3AN Starter Kit board.• Chapter 3, “Clock Sources,” describes the various clock sources available on theSpartan-3A/3AN Starter Kit board.• Chapter 4, “FPGA Configuration Options,” describes the configuration options forthe FPGA on the Spartan-3A/3AN Starter Kit board.• Chapter 5, “Character LCD Screen,” describes the functionality of the character LCDscreen.• Chapter 6, “VGA Display Port,” describes the functionality of the VGA port.• Chapter 7, “RS-232 Serial Ports,” describes the functionality of the RS-232 serial ports.• Chapter 8, “PS/2 Mouse/Keyboard Port,” describes the functionality of the PS/2mouse and keyboard port.• Chapter 10, “Digital-to-Analog Converter (DAC),” describes the functionality of theD/A converter.UG334_01_052707Board Revision CodeREV C