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Universal serial bus (USB) hub for switching downstream ports between host mode and slave mode

机译:通用串行总线(USB)集线器,用于在主机模式和从机模式之间切换下游端口

摘要

Embodiment of present disclosure relates to a Universal Serial Bus (USB) hub for switching downstream ports between host mode and slave mode comprising upstream port connectable to host port of host, downstream port and switching module. The downstream port is connectable to device port of peripheral device and acts in host mode and said device port acts in slave mode. The switching module comprises master port, switching port and control unit. The master port is connectable to upstream port. The switching port is connectable to other end of downstream port, the switching port acts in host mode. The control unit receives switch command from host to switch downstream port from host mode to slave mode; switches switching port to slave mode and enables downstream port to act in the slave mode when host emulates functionality of slave mode as required by peripheral device using vendor specific USB class.
机译:本公开的实施例涉及一种用于在主机模式和从机模式之间切换下游端口的通用串行总线(USB)集线器,其包括可连接至主机的主机端口,下游端口和交换模块的上游端口。下游端口可连接到外围设备的设备端口,并在主机模式下工作,而所述设备端口在从机模式下工作。交换模块包括主端口,交换端口和控制单元。主端口可连接到上游端口。交换端口可连接到下游端口的另一端,该交换端口在主机模式下工作。控制单元从主机接收切换命令,以将下游端口从主机模式切换到从机模式。当主机使用供应商特定的USB类按照外围设备的要求模拟从机模式的功能时,将交换端口切换为从机模式,并使下游端口能够以从机模式工作。

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