公开(公告)号：US20170005648A1

公开(公告)日：2017-01-05

申请号：US14877509

申请日：2015-10-07

Applicant: VIA TECHNOLOGIES, INC.

Inventor： Hao-Hsuan CHIU ,  Yen-Ting LAI

IPC: H03K17/00

CPC classification number: H03K17/002

Abstract: A control chip coupled to a first input/output pin and a second input/output pin and including a first interface module, a second interface module, a first switching unit, and a control unit is provided. The first interface module includes a first pin electrically connected to the first input/output pin and a second pin. The second interface module includes a third pin. The control unit controls the first switching unit to turn on a first path between the second pin and the second input/output pin or a second path between the third pin and the second input/output pin. When the first path is turned on, the first interface module controls the voltage levels of the first and second input/output pins. When the second path is turned on, the second interface module controls the voltage level of the second input/output pin.

Abstract translation: 提供了耦合到第一输入/输出引脚和第二输入/输出引脚并且包括第一接口模块，第二接口模块，第一开关单元和控制单元的控制芯片。 第一接口模块包括电连接到第一输入/输出引脚和第二引脚的第一引脚。 第二接口模块包括第三引脚。 控制单元控制第一切换单元打开第二引脚和第二输入/输出引脚之间的第一路径或第三引脚与第二输入/输出引脚之间的第二路径。 当第一路径被接通时，第一接口模块控制第一和第二输入/输出引脚的电压电平。 当第二路径被打开时，第二接口模块控制第二输入/输出引脚的电压电平。

公开(公告)号：US20160253273A1

公开(公告)日：2016-09-01

申请号：US14700507

申请日：2015-04-30

Applicant: VIA TECHNOLOGIES, INC.

Inventor： Po-Chou LIN ,  Hao-Hsuan CHIU

IPC: G06F13/10 ,  G06F1/32 ,  G06F13/42

Abstract: A hub including an up-stream port, at least one down-stream port, a state-determining unit, and a control unit is provided. The up-stream port is configured to be coupled to a host device. The down-stream port is configured to be coupled to at least one peripheral device. The state-determining unit is coupled to the down-stream port and generates a determination result according to a level of a pin of the down-stream port. The control unit is coupled between the up-stream port and the state-determining unit. When the host device sends a sleep request, the control unit determines whether the peripheral device is operating in a specific mode according to the determination result. When the peripheral device is operating in the specific mode, the control unit provides an unready response to the host device.

Abstract translation: 提供了包括上游端口，至少一个下行端口，状态确定单元和控制单元的集线器。 上行端口被配置为耦合到主机设备。 下游端口被配置为耦合到至少一个外围设备。 状态确定单元耦合到下行端口，并根据下行端口的引脚的电平产生确定结果。 控制单元耦合在上游端口和状态确定单元之间。 当主机设备发送睡眠请求时，控制单元根据确定结果确定外围设备是否以特定模式操作。 当外围设备在特定模式下操作时，控制单元向主机设备提供未响应。