公开(公告)号：US11182245B2

公开(公告)日：2021-11-23

申请号：US16857358

申请日：2020-04-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bo Mi Kim ,  Dong Gun Kim ,  Soo Hyun Kim ,  Ki Hyun Choi ,  Pil Chang Son

IPC: G06F11/00 ,  G06F11/10 ,  G06F9/4401

Abstract: An operating method of a memory controller to update metadata using journaling data in a short time during a booting operation, and to maintain reliability of the updated metadata. The operating method of a memory controller includes loading metadata into sub-regions of a buffer memory, updating the metadata using journaling data in a state that error correction code (ECC) functions of memory controller for the sub-regions are disabled, generating a first parity data of data stored in the first sub-region, and enabling the ECC function of the first sub-region, after the first parity data is generated.