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METHOD OF ENHANCING POWER SAVING IN AN INTEGRATED ELECTRONIC SYSTEM WITH DISTINCTLY POWERED ISLANDS OF FUNCTIONAL CIRCUITRIES AND RELATED DEVICE ARCHITECTURE
METHOD OF ENHANCING POWER SAVING IN AN INTEGRATED ELECTRONIC SYSTEM WITH DISTINCTLY POWERED ISLANDS OF FUNCTIONAL CIRCUITRIES AND RELATED DEVICE ARCHITECTURE
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机译:具有功能电路和相关设备架构的离散供电孤岛的集成电子系统中提高功率节省的方法
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摘要
A method for power saving in an integrated circuit device may include defining an off-switchable analog circuit island including an internal clock generating circuit, and at power-on of the integrated circuit device, supplying to clocked digital circuits of the integrated circuit device an auxiliary clock from the external controller. The auxiliary clock has a frequency determined by the external controller and being lower than the root clock signal. The method includes supplying external reset commands to the integrated circuit device until an active functioning condition of the integrated circuit device is asserted, and interrupting the supply of the auxiliary clock and enabling supply of the root clock signal to the clocked digital circuits when the active functioning condition of the integrated circuit device is asserted.
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