Low ICC enumeration scheme for bus powered USB device
    1.
    发明授权
    Low ICC enumeration scheme for bus powered USB device 失效
    总线供电USB设备的低ICC枚举方案

    公开(公告)号:US5987617A

    公开(公告)日:1999-11-16

    申请号:US940538

    申请日:1997-09-30

    IPC分类号: G06F1/32

    摘要: An apparatus and method of reducing power consumption in an integrated device having a first module with a mandatory operating frequency and a second module with a flexible frequency requirement. The integrated device is powered by a serial bus. The first module is segregated from the second module in the time domain by a frequency independent interface. The second module is then operated at a lower frequency when power conservation is needed. The operating frequency of the second module can be dynamically changed to improve performance of the second module when a power budget for the device permits.

    摘要翻译: 一种在具有强制性操作频率的第一模块和具有灵活频率要求的第二模块的集成装置中降低功耗的装置和方法。 集成设备由串行总线供电。 第一个模块通过独立于频率的接口在时域与第二个模块隔离。 然后,当需要节电时,第二个模块以较低的频率工作。 当设备的功率预算允许时,可以动态地改变第二模块的工作频率以提高第二模块的性能。