METHOD FOR SETTING MODE, AND METHOD FOR INITIALIZING IN MEMORY STORAGE DEVICE

摘要

PURPOSE: A method for setting and initializing a mode of a memory storage device are provided to supply a maximal reading service in spited of the disappearance of reserved substitute blocks when exchanging a bad block. CONSTITUTION: When a bad block is replaced, the number of bad block in a first memory chip is compared with a certain value(S310). When the number of the bad block exceeds the value, the first memory chip is set up at a read-only mode(S330). The metadata of the first memory chip is stored in a second memory chip(S332), and the bad blocks are exchanged with a reserved replacement block when the number of the bad block does not exceed the value(S320).