公开(公告)号：US20240427724A1

公开(公告)日：2024-12-26

申请号：US18829008

申请日：2024-09-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Er NIE ,  Kun WANG ,  Pan LI

IPC: G06F13/42 ,  G06F13/40

Abstract: This application provides a spread spectrum clock negotiation method, and a peripheral component interconnect express device and system, to implement dynamic negotiation between a transmit end and a receive end on an SSC capability in the peripheral component interconnect express system. The method includes: A second PCIe device generates first indication information, where the first indication information is used to indicate whether the second PCIe device has a spread spectrum clock capability. The second PCIe device sends the first indication information to a first PCIe device. The first PCIe device determines, based on the first indication information, whether to perform spread spectrum clock on a reference clock of the first PCIe device.

公开(公告)号：US20230367728A1

公开(公告)日：2023-11-16

申请号：US18358217

申请日：2023-07-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Er NIE ,  Kun WANG ,  Pan LI

IPC: G06F13/40

CPC classification number: G06F13/4018 ,  G06F13/4022

Abstract: This application relates to a link width adjustment method and apparatus. The method includes: sending, to a second-end apparatus through a first channel, a first packet indicating to perform link width switching; receiving a second packet that is returned by the second-end apparatus and that indicates that the link width switching is agreed on; sending, to the second-end apparatus through a second channel, a first bit stream to test the second channel for data communication; and sending a data stream to the second-end apparatus through the first channel and the second channel.

公开(公告)号：US20240104046A1

公开(公告)日：2024-03-28

申请号：US17951473

申请日：2022-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Er NIE ,  Kun WANG ,  Pan LI

IPC: G06F13/42 ,  G06F13/40

CPC classification number: G06F13/423 ,  G06F13/405

Abstract: This application provides a spread spectrum clock negotiation method, and a peripheral component interconnect express device and system, to implement dynamic negotiation between a transmit end and a receive end on an SSC capability in the peripheral component interconnect express system. The method includes: A second PCIe device generates first indication information, where the first indication information is used to indicate whether the second PCIe device has a spread spectrum clock capability. The second PCIe device sends the first indication information to a first PCIe device. The first PCIe device determines, based on the first indication information, whether to perform spread spectrum clock on a reference clock of the first PCIe device.