Adaptive error correction in a memory system

摘要

According to one aspect, a method for adaptive error correction in a memory system includes reading data from a memory array of a non-volatile memory device in the memory system. Error correcting logic checks the data for at least one error condition stored in the memory array. Based on determining that the at least one error condition exists, a write-back indicator is asserted by the error correcting logic to request correction of the at least one error condition. Based on determining that the at least one error condition does not exist, accesses of the memory array continue without asserting the write-back indicator.

主权项

1. A method for adaptive error correction in a memory system, the method comprising:
reading data from a memory array of a non-volatile memory device in the memory system; checking, by error correcting logic, the data for at least one error condition stored in the memory array; based on determining that the at least one error condition exists, asserting a write-back indicator, by the error correcting logic, to request correction of the at least one error condition; based on determining that the at least one error condition does not exist, continuing accesses of the memory array without asserting the write-back indicator; saving write data into a write retry buffer based on receiving a write command for the non-volatile memory device; executing a write of the write data to store the write data in the memory array; and performing the reading of the data from the memory array as a write verify operation, wherein correction of the at least one error condition is performed as a write retry operation.