xa3s1400a-4ftg256q Xilinx Corp., xa3s1400a-4ftg256q Datasheet - Page 3

• Manufacturer Part Number: xa3s1400a-4ftg256q
• Description: Xa Spartan-3a Automotive Fpga Family Data Sheet
• Manufacturer: Xilinx Corp.

Configuration
XA Spartan-3A FPGAs are programmed by loading
configuration data into robust, reprogrammable, static
CMOS configuration latches (CCLs) that collectively control
all functional elements and routing resources. The FPGA’s
configuration data is stored externally in a SPI serial Flash
or some other non-volatile medium, either on or off the
board. After applying power, the configuration data is written
to the FPGA using any of five different modes:
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DS681 (v1.1) February 3, 2009
Product Specification
Serial Peripheral Interface (SPI) from an
industry-standard SPI serial Flash
Notes:
1.
R
The XA3S700A and XA3S1400A have two additional DCMs on both the left and right sides as indicated by the
dashed lines.
DCM
CLBs
IOBs
IOBs
OBs
DCM
DCM
Figure 1: XA Spartan-3A Family Architecture
DCM
www.xilinx.com
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Additionally, each XA Spartan-3A FPGA contains a unique,
factory-programmed Device DNA identifier useful for
tracking purposes, anti-cloning designs, or IP protection.
IOBs
Byte Peripheral Interface (BPI) Up from an
industry-standard x8 or x8/x16 parallel NOR Flash
Slave Serial, typically downloaded from a processor
Slave Parallel, typically downloaded from a processor
Boundary Scan (JTAG), typically downloaded from a
processor or system tester
CLB
DS312-1_01_032606
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