公开(公告)号：US20180120918A1

公开(公告)日：2018-05-03

申请号：US15711397

申请日：2017-09-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ohsung KWON ,  Youngjun YOO ,  Hojun SHIM ,  Kwanggu LEE

IPC: G06F1/32

Abstract: A method of controlling a link state of a communication port of a storage device according to the present inventive concepts includes setting the link state of the communication port to a link active state that can exchange data with a host, determining a holding time of a first standby state among link states of the communication port, changing the link state of the communication port to the first standby state, monitoring whether an exit event occurs during the holding time from the time when a transition to the first standby state occurs, and in response to an exit event not occurring during the holding time, changing the link state of the communication port to a second standby state. A recovery time from the first standby state to the link active state is shorter than a recovery time from the second standby state to the link active state.