公开(公告)号：US10884655B2

公开(公告)日：2021-01-05

申请号：US16386645

申请日：2019-04-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Minsu Kim ,  Tae-Kyeong Ko ,  Dae-Jeong Kim ,  Do-Han Kim ,  Sung-Joon Kim ,  Wonjae Shin ,  Kwanghee Lee ,  Changmin Lee ,  Insu Choi

IPC: G06F3/06 ,  G06F12/0891 ,  G06F12/1009 ,  G06F12/02

Abstract: A storage module includes a dynamic random access memory (DRAM) device, a nonvolatile memory device, and a high-speed buffer memory. An method of operating the storage module includes copying target data stored in the nonvolatile memory device to the high-speed buffer memory in response to an external device entering a page fault mode, receiving a first refresh command from the external device, and, in response to the first refresh command, performing a first refresh operation associated with the DRAM device and moving the target data copied to the high-speed buffer memory to the DRAM device during a first refresh reference time.