Invention Grant
US08448001B1 System having a first device and second device in which the main power management module is configured to selectively supply a power and clock signal to change the power state of each device independently of the other device
有权
具有第一设备和第二设备的系统，其中主电源管理模块被配置为选择性地提供电源和时钟信号以独立于其他设备改变每个设备的电源状态
- Patent Title: System having a first device and second device in which the main power management module is configured to selectively supply a power and clock signal to change the power state of each device independently of the other device
- Patent Title (中): 具有第一设备和第二设备的系统，其中主电源管理模块被配置为选择性地提供电源和时钟信号以独立于其他设备改变每个设备的电源状态
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Application No.: US12715612Application Date: 2010-03-02
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Publication No.: US08448001B1Publication Date: 2013-05-21
- Inventor: Jun Zhu , Ian Swarbrick , Joseph Jun Cao , Sheng Lu , Pantas Sutardja
- Applicant: Jun Zhu , Ian Swarbrick , Joseph Jun Cao , Sheng Lu , Pantas Sutardja
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: G06F1/00
- IPC: G06F1/00 ; G06F1/32 ; G06F1/26
Abstract:
A system includes a first device, a second device, and a main power management module. The first device is configured to communicate with a system bus. The second device is configured to communicate with the system bus. The second device includes a device power management module configured to manage power states of the second device. The main power management module is configured to manage power consumption of the second device independently of the first device by selectively supplying power and clock signals to the second device based on the power states of the second device. The main power management module and the device power management module each comprise a power handshake interface. The main power management module communicates with the device power management module via a power management bus using the power handshake interface.
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