公开(公告)号：US20250130948A1

公开(公告)日：2025-04-24

申请号：US18643160

申请日：2024-04-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyungjune CHO ,  Donggil KANG ,  Minsik OH ,  Yoon soo KIM ,  Jongmin KIM ,  Kyungsik UM ,  MyungGwan JEONG

IPC: G06F12/0862

Abstract: Disclosed is a storage device. The storage device includes: a memory device; a buffer memory configured to store partial data among data stored in the memory device; and a memory controller configured to determine prefetch logical addresses expected to be received sequentially after sequential logical addresses are received from a host, to read prefetch data corresponding to the prefetch logical addresses from the memory device to store the prefetch data as a prefetch group of in the buffer memory, and to release the prefetch group from the buffer memory in response to a logical address discontinuous with the logical addresses being received from the host.

公开(公告)号：US20240311304A1

公开(公告)日：2024-09-19

申请号：US18502233

申请日：2023-11-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Minsik OH ,  Donggil KANG ,  Kyungjune CHO ,  Jongmin KIM ,  Jinwoo SONG ,  Kyungsik UM ,  Myunggwan JEONG

IPC: G06F12/0815 ,  G06F12/0862

CPC classification number: G06F12/0815 ,  G06F12/0862

Abstract: A storage controller includes a host interface configured to communicate with a host, a buffer memory configured to buffer data read from a non-volatile memory, a cache memory including a plurality of cache lines and configured to store the data in at least one of the plurality of cache lines, and a cache controller configured to manage a status bitmap. The status bitmap indicates priority information of the plurality of cache lines according to an operation corresponding to a request received from the host interface, and the cache controller is further configured to select a victim cache line, among the plurality of cache lines, to be replaced based on the status bitmap. In this case, the operation corresponding to the request corresponds to one of normal read, prefetch, read-after-read, and read-after-prefetch.