Implementing MLC NAND Flash for Cost-Effective, High-Capacity Memory
Overcoming MLC Limitations
Because MLC technology can potentially bring the industry breakthrough cost and size benefits for local data and code storage, M-Systems chose to take on the challenge of perfecting it by providing solutions to overcome MLC reliability, performance and flash management limitations.
x2 technology, customized by M-Systems specifically to meet this challenge, is a combination of algorithms, performance-enhancing innovations and flash management capabilities. Developed in cooperation with Toshiba, x2 technology is integrated seamlessly into the different modules of M- Systems’ Mobile DiskOnChip G3 architecture and fully compatible with its TrueFFS technology for flash management. x2 technology includes reliability and performance improvements integrated into TrueFFS, the thin controller and the flash media itself, as shown in Figure 3. x2 technology cleverly balances software and hardware to keep reliability and performance at their peek while maintaining MLC cost and size benefits.
Figure 3: x2 Technology: Seamless Integration into M-Systems’ Mobile DiskOnChip G3
