System, method and apparatus for preventing data loss due to memory defects using latches

摘要

A system and method for operating a memory system includes receiving a first user data, writing the first user data to a first buffer, writing the first user data from the first buffer to a first selected memory location, writing the first user data from the first buffer into a second buffer when the first user data was successfully written to the first selected memory location. Data is retrieved from the first selected memory location and written into the first buffer. Data in the first buffer can be matched to the user data in the second buffer to confirm a successful storage of the first user data in the memory system. A previously stored user data can be retrieved from a third selected memory location and written into a third buffer when the previously stored user data was stored in the memory system before the first user data.

主权项

1. A method for operating a memory system comprising:
receiving a first quantity of user data to be stored in the memory system; writing the first quantity of user data to a first buffer of the memory system; writing the first quantity of user data from the first buffer to a first selected memory location within a memory array of the memory system; writing the first quantity of user data from the first buffer into a second buffer of the memory system when the first quantity of user data was successfully written to the first selected memory location; retrieving a quantity of stored data in the first selected memory location and writing the retrieved quantity of stored data into the first buffer; and confirming the quantity of stored data in the first buffer matches the first quantity of user data in the second buffer.