Flash interface specification unveiled
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The Open NAND Flash Interface (ONFI) Working Group, an organisation which is aiming to simplify the integration of NAND flash memory into consumer electronics devices, computing platforms and industrial systems, has unveiled the ONFI 1.0 specification. The chip level standard interface simplifies flash controller design, easing the integration of a range of NAND flash components into various applications.
“The ONFI 1.0 specification is the first industry standard for the chip level NAND flash interface,” said Knut Grimsrud, ONFI chairman and Intel Fellow.
ONFI 1.0 that defines NAND device behaviour, such as command and register sets, pin out, electrical parameters and packaging. In addition, it provides the NAND flash with the ability to identify itself and provide key characteristics such as memory layout, timing support, and enhanced features to the controller, via a standardised protocol.
ONFI will now focus on increasing the flash interface transfer rate to improve overall system level performance. The group will also continue to simplify host controller design by providing a block abstraction capability. Lastly, ONFI will define a flash module, including a tailored module connector, which will enable an industry standard, pluggable NAND module similar to the DRAM modules used in computing platforms. This is scheduled to be completed in the second half of 2007.
Details of the specification can be downloaded using the link below.
