Method for Updating Stored Information and Apparatus

An apparatus, comprising

• a memory configured to store data information and error correction code (ECC) check information corresponding to the data information;
• and
• a controller coupled to the memory and configured to:
• perform, based on the data information and the ECC check information, ECC decoding on the data information to generate an error-corrected codeword, wherein the error-corrected codeword comprises error-corrected data information;
• generate candidate to-be-written data information based on the error-corrected data information and a data update indication;
• perform a mask operation on the candidate to-be-written data information based on the data information;
• and
• write unmasked content in the candidate to-be-written data information into the memory.

A system chip, comprising:

• a controller;
• and
• a core processor configured to exchange data with a memory via the controller,
• wherein the controller is configured to:
• perform, based on data information and error correction code (ECC) check information, ECC decoding on the data information to generate an error-corrected codeword, wherein the error-corrected codeword comprises error-corrected data information;
• generate candidate to-be-written data information based on the error-corrected data information and a data update indication;
• perform a mask operation on the candidate to-be-written data information based on the data information;
• and
• write unmasked content in the candidate to-be-written data information into the memory.