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The major components on the baseboard are:
Two tile sites (supports ARM Core Tiles and Logic Tiles)
Field Programmable Gate-Array (FPGA) that implements a bus matrix, configuration interface, peripheral controllers, and interface logic
An 8MB configuration flash that holds FPGA images
256MB of 32-bit wide DDR SDRAM
4MB of 16-bit wide Cellular (Pseudo-static) RAM
64MB of 32-bit wide NOR flash
64MB of 16-bit wide NAND Disk-on-Chip flash
up to 320MB (5x64MB) of static memory (flash or RAM) in an optional PISMO expansion board
PCI expansion connector
USB interface controller IC and connector
Ethernet interface controller IC and connector
connectors for VGA, color LCD display interface board, four UARTs, GPIO, keyboard, mouse, Smart Card, audio, MMC, and SSP
Electronic switches that select between the controllers located in the FPGA or on one of the tile sites.
debug and test connectors for JTAG, Integrated Logic Analyzer, and Trace port
general purpose DIP switches and LEDs
2 row by 16 character LCD display
power supply circuitry
Real-Time Clock (RTC)
time of year clock with backup battery
programmable clock generators.