Memory system and memory controller

摘要

A memory system according to the embodiment comprises a memory device including plural memory cells capable of storing d bits of data and operative to read/write data at every page; and a memory controller operative to control the memory device. The memory controller includes a page buffer operative to hold page data to be read from/written in a page of the memory device and send/receive the page data to/from the memory device, a data processing unit operative to detect and correct an error in the page data by processing target data in a finite field Zp modulo p generated based on the page data (p is a prime that satisfies 2

主权项

1. A memory controller for controlling a memory device, said memory device including plural memory cells capable of storing d bits of data, said d being an integer of 2 or more, in accordance with plural physical quantity levels and operative to read/write data at every page composed of specific bits in certain ones of said plural memory cells,
wherein said memory controller, after reading data by said memory device, receives d pages at a time of page data stored in the same certain ones of said plural memory cells in said memory device, and then utilizes only the part corresponding to a p-value per data of d-bit, said p being a prime that satisfies 2