Patent ID: 11934691
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. A method for link startup between a first device and a second device, the method comprising:
performing initialization in a high speed mode, in both directions, between the first device and the second device, based on a high speed link up message transmitted by the first device;
transmitting, by the first device, a first trigger event through all available transmission lanes of the first device, the first trigger event from the first device including physical lane numbers of the available transmission lanes of the first device;
transmitting, by the second device, the first trigger event through all available transmission lanes of the second device, the first trigger event from the second device including physical lane numbers of the available transmission lanes of the second device;
transmitting, by the first device, a second trigger event through the available transmission lanes of the first device, the second trigger event from the first device including information about connected transmission lanes of the first device;
transmitting, by the second device, the second trigger event through the available transmission lanes of the second device, the second trigger event from the second device including information about connected transmission lanes of the second device;
transmitting, by the first device, a third trigger event through the connected transmission lanes of the first device, the third trigger event from the first device including logical lane numbers of the connected transmission lanes of the first device;
transmitting, by the second device, the third trigger event through the connected transmission lanes of the second device, the third trigger event from the second device including logical lane numbers of the connected transmission lanes of the second device; and
exchanging information about a capability of a counterpart device on the available transmission lanes between the first device and the second device,
wherein the high speed link up message includes transitioning a line in the connected data lane of the first device from a zero differential line voltage DIF-Z to an activate period having a negative differential line voltage DIF-N, and
wherein, when a length of the activate period is less than a first time, the first device and the second device enter the high speed mode.