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3.2. Block Description
W5300E01-ARM can be divided into below blocks.
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S3C2410A System Block
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SDRAM
NAND Flash ROM
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WIZ830MJ Module
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Character LCD
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RS-232C Serial Port
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USB Host / Device Port
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JTAG Interface
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LED & Tact Switch for Debugging
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Expansion Port Interface
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Power Block
3.2.1.
S3C2410A System Block
In order to support NAND Flash boot loader, Samsung S3C2410A processor contains SRAM buffer called as
Steppingstone.
W5300E01-ARM Platform uses NAND Flash ROM for Booting memory. It is designed to be initialized with
NAND Flash booting by pull-down OM0 and OM1 pins of S3C2410A to GND.
As power-on reset IC is installed for user manual reset, it is possible to manually reset the board by using
tact switch during board operation.
3.2.2.
SDRAM
64MByte SDRAM is used for external memory of S3C2410A processor, and provides enough space for
operation of O/S and User application.
3.2.3.
NAND Flash ROM
64MByte NAND Flash ROM is used for external programming memory of S3C2410A and non-volatile
storage device. Basically, Linux bootloader, Kernel, and File System are programmed in this Flash ROM.
Additionally, embedded web server (utilizing W5300 TCP/IP) is also saved in NAND Flash ROM. Extra space
can be used for user data field.
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