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Leveraging Processor SRAM for OneNAND bootloaders

NAND flash memory densities for device-resident memory are increasing - and the price decreasing - with designers desiring to remove NOR flash devices from their design, and instead boot their processors from less expensive NAND. Due to the architecture of NAND flash memory devices, NAND flash cannot be used to boot processors unless the processor or the system contains some additional enabling logic. In the case of Samsung OneNAND™, this logic resides within the OneNAND part itself. Common OneNAND parts, such as the KFG1G16Q2A, supply a 1KB BootRAM buffer that automatically load from the internal NAND array at power on.

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