nor flash的應用 相關
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Overview. The replacement depends on well-designed management of flash memory, which is carried out by either software on a host system (as a raw medium) or hardware circuits/firmware inside its devices. Here, an efficient prediction mechanism with limited memory-space requirements and an efficient implementation is proposed.
Flash memory is an electronic non-volatile computer memory storage medium that can be electrically erased and reprogrammed. The two main types of flash memory, NOR flash and NAND flash, are named for the NOR and NAND logic gates. Both use the same cell design, consisting of floating gate MOSFETs.
StrataFlash is a NOR flash memory technology first developed by Intel. It stores two or more bits of information per cell rather than just one, in an architecture called multi-level cell (MLC). This is accomplished by storing intermediate voltage levels instead of using only the two levels (discharged = "0" and charged = "1") of ...
Charge Trapping flash is erased via hot hole injection (see Hot-carrier injection) as opposed to the Fowler–Nordheim tunneling approach used in both NAND and NOR flash for erasure. This process uses a field, rather than the current used in FN, to move holes toward the charge trapping layer to remove the charge.
The Journaling Flash File System (or JFFS) is a log-structured file system for use on NOR flash memory devices on the Linux operating system. It has been superseded by JFFS2.
CompactFlash was originally built around Intel's NOR-based flash memory, but has switched to NAND technology. CF is among the oldest and most successful formats, and has held a niche in the professional camera market especially well.
The Common Flash Memory Interface (CFI) is an open standard jointly developed by AMD, Intel, Sharp and Fujitsu. It is implementable by all flash memory vendors, and has been approved by the non-volatile-memory subcommittee of JEDEC .
