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Xilinx Spartan-3A Schematic
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Xilinx Spartan-3A Schematic

Xilinx Spartan-3A Schematic

Starter kit board
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Spartan-3A/3AN Starter Kit Board Schematic
(Annotated)
21-AUG-2007
For additional information ...
www.xilinx.com/s3astarter
See
UG334: Spartan-3A/3AN Starter Kit User Guide
for further information on each board feature

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Summary of Contents for Xilinx Spartan-3A

  • Page 1 Spartan-3A/3AN Starter Kit Board Schematic (Annotated) 21-AUG-2007 For additional information … www.xilinx.com/s3astarter UG334: Spartan-3A/3AN Starter Kit User Guide for further information on each board feature...
  • Page 2 Hirose FX2 100-pin Expansion Connector Connectorless Debugging Port Landing Pads Six-pin Accesory Headers Connectorless Debugging Port Inputs FX2 Expansion Connector Outputs Six-pin Accessory Headers DAC Analog Outputs ADC Analog Inputs Spartan-3A/3AN Starter Kit Board FX2 Expansion Connector, 6-pin Headers...
  • Page 3 SPI select jumper The PS/2 connector has primary and secondary connections to the FPGA. The secondary connections are available by attaching an external Y-splitter cable. Stereo Audio mini jack Clock SMA Spartan-3A/3AN Starter Kit Board RS-232, VGA, Audio ports, SMA connector...
  • Page 4 LAN8700 10/100 Ethernet PHY RJ-45 Connector LAN8700 10/100 Ethernet PHY RJ-45 Connector Spartan-3A/3AN Starter Kit Board www.smsc.com/main/catalog/lan8700.html 10/100 Ethernet PHY, magnetics...
  • Page 5 FPGA DDR2 SDRAM Termination (0.9V) DDR2 SDRAM Device, FPGA I/O Bank 3 (1.8V) DAC Reference Voltage (3.3V) I C Interface Wall power adapter input DDR2 SDRAM Voltage Ref. (0.9V) Power switch Voltage regulators Spartan-3A/3AN Starter Kit Board www.national.com/pf/LP/LP3906.html Voltage regulators...
  • Page 6 PROM using SUSPEND switch Jumper J46 PROG_B pushbutton DONE LED Disable Platform Flash PROM by removing Jumper J46 Spartan-3A/3AN Starter Kit Board (Spartan-3AN only) Master BPI Master SPI Master Internal SPI Configuration, Mode pins, Platform Flash PROM SUSPEND pin, JTAG header...
  • Page 7 FPGA: XC3S700A/AN-4FGG484C(E FPGA: XC3S700A/AN-4FGG484C(ES) Bank 0 FPGA FPGA Spartan-3A/3AN Starter Kit Board CLK_50MHZ CLK_AUX FPGA I/O Bank 0 and Bank 1, Clock Oscillators Auxiliary Oscillator Socket 50 MHz Oscillator...
  • Page 8 FPGA: XC3S700A/AN-4FGG484C(ES) FPGA: XC3S700A/AN-4FGG484C(ES) FPGA I/O Bank 3 is dedicated to the DDR2 SDRAM interface interface FPGA FPGA Bank 2 AWAKE Spartan-3A/AN Starter Kit Board FPGA I/O Bank 2 and Bank 3...
  • Page 9 Spartan-3A/3AN Starter Kit Board FPGA Power Supply Decoupling...
  • Page 10 (see sheet 2) The DAC_REF_CD voltage is programmable via the I2C control interface on the LP3906 voltage regulator designated as IC18 on sheet 5. At power-up, this reference voltage is 3.3V. Spartan-3A/3AN Starter Kit Board ADC, DAC, and Pre-amplifier www.linear.com...
  • Page 11 Connects to FPGA I/O Bank 3 32Mx16 DDR2 SDRAM The DDR2 SDRAM interface has specific pin assignment and layout requirements to support the Xilinx Memory Interface Generator (MIG) software. See the “DDR SDRAM” chapter in UG334: Spartan-3A/3AN Starter Kit User Guide.
  • Page 12 Platform Flash PROM STMicroelectronics M29DW323DT 32 Mbit, x8/x16 parallel NOR Flash To configure from parallel NOR Flash, set the FPGA mode select pins using Jumper J46 as shown Spartan-3A/3AN Starter Kit Board M29DW323DT x8/x16 Parallel NOR Flash www.st.com/stonline/products/families/memories/fl_nor_emb/fl_m29dw.htm...
  • Page 13 Master SPI Mode M[2:0]=<0:0:1> Spartan-3A/3AN Starter Kit Board STMicro SPI serial Flash, Atmel serial DataFlash The Spartan-3A Starter Kit board supports multiple pad landings for each SPI Flash architecture. However, only one STMicro and one Atmel PROM are mounted on the board.
  • Page 14 Rotary knob switch with pushbutton switch Rotary pushbutton switch 16x2 character LCD Four slide switches Eight discrete LEDs Spartan-3A/3AN Starter Kit Board 16-character by 2-line LCD display Slide switches, Rotary knob, Character LCD, Pushbutton switches, discrete LEDs...
  • Page 15 Spartan-3A/3AN Starter Kit Board The DDR2 SDRAM interface has specific pin assignment DDR2 SDRAM Termination Network (1 of 2) and layout requirements to support the Xilinx Memory Interface Generator (MIG) software. See the “DDR SDRAM” chapter in UG334: Spartan-3A/3AN Starter Kit User...
  • Page 16 The DDR2 SDRAM interface has specific pin assignment and layout requirements to support the Xilinx Memory Interface Generator (MIG) software. See the “DDR SDRAM” chapter in UG334: Spartan-3A/3AN Starter Kit User Guide. Spartan-3A/3AN Starter Kit Board DDR2 SDRAM Termination Network (2 of 2)
  • Page 17 DCM labeled DCM_X2Y3 If using differential inputs, set the DIFF_TERM=TRUE constraint. There are no external termination resistors provided on the board. INST <I/O_BUFFER_INSTANTIATION_NAME> DIFF_TERM = “TRUE” ; Recieve stake pins Transmit stake pins Spartan-3A/3AN Starter Kit Board Differential I/O Headers...

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