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Common flash interface version 1.4 vendor specific extensions

Posted: 09 Mar 2009 ?? ?Print Version ?Bookmark and Share

Keywords:flash interface? implementation CFI? driver flash software?

This application note provides an overview of the changes implemented between ver 1.3 and ver 1.4 of the Spansion flash memory Common Flash Interface (CFI) implementation.

CFI is a JEDEC standard database that may be read from a flash memory. It allows flash driver software to query the installed device to determine the proper configuration (e.g. memory size, speed, special features and other characteristics).

The JEDEC CFI standard provides for vendor specific extensions to the basic device information. These extensions provide information about optional device features. As successive device generations add new features new fields are added to the vendor specific extensions area.

View the PDF document for more information.

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