Samsung Electronics Co., Ltd.

Sunho Ki

Jaeho Cho

Wangseok Lee

A semiconductor device includes: a plurality of ports exchanging data with each other in an interface; and an interface controller including a link training and status state machine (LTSSM), configured to execute link-up, setting a plurality of lanes to the plurality of ports, and a memory configured to store a sequence, in which the LTSSM succeeding in the link-up executes states, as a reference sequence. The interface controller changes at least one of the PHY parameters when a calibration operation of adjusting the PHY parameters starts until a sequence of the states, executed by the LTSSM to complete the link-up, matches the reference sequence.

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Suwon-si, South Korea

Sunho Ki