Method for entering powersave mode of USB hub
AssigneeMatsushita Electrical Industrial Co., Ltd.
InventorsMasakazu Urade, Eskandar Afshar, Liang Lin
Life of this patent
Estimating the term…
Abstract
A method of controlling a USB hub by a microcontroller, comprising the steps of sending a suspend request to the microcontroller from the USB hub; sending a stop clock request from the microcontroller to the USB hub in response to the suspend request; and stopping the USB hub controller clock in response to the suspend request; entry into a powersave mode by the microcontroller in response to the suspend request.
Claims9
A method of controlling a USB hub by a microcontroller, comprising:
- sending a suspend request to the microcontroller from the USB hub;
- sending a stop clock request from the microcontroller to the USB hub in response to the suspend request;
- and
- stopping the USB hub controller clock in response to the stop clock request;
- entry into a powersave mode by the microcontroller in response to the suspend request.
A method of controlling a USB hub, the USB hub including a hub controller, a hub repeater and a microcontroller interface, comprising:
- sending a SUSPEND signal to a microcontroller in response to a suspend request from a host computer connected to the hub controller;
- sending a STOPCLK signal to the hub controller;
- and
- initiating a STOP mode in the hub controller in response to the received STOPCLK signal.
Dependencies are inferred from the claim text.