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Quick guide to Common Flash Interface
Author: Frank Cirimele

The CFI is used to standardize flash device characteristics and to define feature differences between various flash manufacturers. For a detailed definition of CFI, please refer to the JEDEC CFI publications JEP137 and JESD68. The Spansion application note "Common Flash Interface Version 1.4 Vendor Specific Extensions" provides an overview of versions 1.3 and 1.4 CFI implementations, with v 1.3 covering Addresses 10h - 50h and v 1.4 beyond Address 50h.

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