An eMMC IC with host can handle flash management including flash read/write, dual channel data transmission, ECC (error correction coding), wear leveling, and bad block
The reason is that the MIXED doesn't execute the BLOCK while no bad block
is identified by the FILE.
If more than ten bad bytes are detected in a single block, the block is marked as a bad block
Optionally, a NAND Flash File system (FFS) is also available to support advanced features such as flash memory read/write, garbage collection, bad block
management, wear leveling, and other background functions.
FlashFX(TM) Tera features pre-written support for over 300 flash parts, including MLC, works with virtually any NAND controller, and features wear leveling, bad block
management, and background compaction for unrivaled performance.
Improved data integrity via static wear leveling, Reed-Solomon ECC and bad block
Usage status and bad block
status are easily managed on Flash memory chips by using Smart Command.
The CompactFlash card controller is pre-programmed with an embedded flash file system which, upon initial power-up, recognizes the flash media devices, sets up a bad block
table, executes all the necessary handshaking routines for flash media support, and performs the low-level format.
CyberKey also incorporates patent pending Bad Block
Memory Management techniques that protect the performance and reliability of its drives.
The controller features numerous performance enhancements, like an effective Error Correction Code, hardware support for Bad Block
Management, a scatter-gather DMA, Super Sequence and Command queue.
This design can prevent incomplete data from being recorded and cause a bad block
in the NAND flash.
In addition, the system takes advantage of advanced PerfectRAID features, including bad block
remapping, and Media Patrol, which scan the system's drive media to ensure that even bad physical drives do not impact data availability.