DFML
Atmel DataFlash is the world’s leading serial flash memory family. It contains a number of features that make it an excellent partner for embedded applications in general and for HCC’s file system solutions in particular:
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Unrivalled access speed
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Dual RAM buffers for storing pages
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Small erasable page size
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Low power consumption
HCC's DFML is designed to be a clean interface layer between a file system and DataFlash devices. It provides a substantial set of features:
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A reliable and fail-safe page write operation, ensuring that critical data will always be reliably written to the device even in the event of power loss
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A normal page write for non-critical data
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Managed sectors set aside for non-file system usage
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Unmanaged sector reservation for private functions, such as boot memory operations
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10K random write per sector refresh operations are managed transparently
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Optional error correction algorithms for added reliability
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Enhanced wear leveling operations
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Support for multiple devices in a single array
DFML technology can provide a robust DataFlash file system for a PC-compatible or fail-safe application. It supports the following DataFlash devices:
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Density
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Serial DataFlash
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DataFlash Cards
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1Mbit
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AT45DB011B
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2Mbit
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AT45DB021B
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4Mbit
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AT45DB041B
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4Mbit
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AT45DB041D
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8Mbit
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AT45DB081B
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16Mbit
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AT45DB081D
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AT45DCB002D
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32Mbit
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AT45DB321C
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AT45DCB004C
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32Mbit
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AT45DB321D
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AT45DCB004D
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64Mbit
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AT45DB642D
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AT45DCB008D
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DFML fully supports all legacy DataFlash products.
DFML is normally bundled with one of HCC's file systems and is licensed on a per product or "product-line" basis.
Atmel® and DataFlash® are registered trademarks of Atmel Corporation
