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ACCELERATING MICROPROCESSOR CORE WAKE UP VIA CHARGE FROM CAPACITANCE TANK WITHOUT INTRODUCING NOISE ON POWER GRID OF RUNNING MICROPROCESSOR CORES
ACCELERATING MICROPROCESSOR CORE WAKE UP VIA CHARGE FROM CAPACITANCE TANK WITHOUT INTRODUCING NOISE ON POWER GRID OF RUNNING MICROPROCESSOR CORES
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机译:通过电容罐中的电荷加速微处理机核心唤醒,而不会在运行微处理机核心的功率网格上引入噪声
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摘要
A mechanism is provided for an integrated circuit with power gating. A power switch is configured to connect and disconnect circuits to a common voltage source. A capacitor tank is configured to supply wakeup charge to a given circuit. A controllable element is connected to the given circuit and to the capacitor tank. The controllable element is configured to controllably connect and disconnect the capacitor tank to the given circuit in order to supply the wakeup charge to the given circuit. The controllable element is configured to, responsive to the power switch disconnecting the given circuit from the common voltage source and to the given circuit being turned on to wakeup, supply the wakeup charge to the given circuit being turned on by transferring the wakeup charge from the capacitor tank to the given circuit. This reduces the electrical charge transferred from the circuits connected to the common voltage source.
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