Xilinx Spartan-3A User Manual page 38

Chapter 4: FPGA Configuration Options
Figure 4-1
on-board non-volatile memories that potentially store FPGA configuration images.
16 Mbit Atmel DataFlash SPI Serial Flash
4 Mbit Platform Flash
PROM
USB-based Download/
Debugging Port
FPGA Mode Select
Jumpers
The configuration mode jumpers determine which configuration mode the FPGA uses
when power is first applied, or whenever the PROG button is pressed.
The DONE pin LED lights when the FPGA successfully finishes configuration.
Pressing the PROG button forces the FPGA to restart its configuration process.
The Xilinx Platform Flash PROM provides easy, JTAG-programmable configuration
storage for the FPGA. The FPGA configures from the Platform Flash using Master Serial
mode.
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indicates the position of the USB download/programming interface and the
Uses standard USB cable
Figure 4-1: Starter Kit FPGA Configuration Options
www.xilinx.com
16 Mbit ST Micro SPI Serial Flash
PROGRAM Button
DONE LED
In-System SPI Flash
(Spartan-3AN Starter Kit board only)
32 Mbit STMicro Flash
Parallel NOR Flash memory
Byte Peripheral Interface (BPI) mode
Spartan-3A/3AN Starter Kit Board User Guide
UG334 (v1.0) May 28, 2007
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UG334_c4_01_052407