Flash memory mass storage architecture incorporation wear leveling technique

摘要: A semiconductor mass storage device can be substituted for a rotating hard disk. The avoids an erase cycle each time information stored in the is changed. (The understood to include, fully programming block erased, and then erasing block.) Erase cycles are avoided by altered data file into empty rather than over itself as disk would. Periodically, will need cleaned up. Secondly, circuit evenly using all blocks provided. These advantages achieved through use of several flags, map directly correlate logical address physical that count register block. In particular, flags provided defective blocks, used old version block, determine number times has been erased written inhibit.