Nxp B.v.

Peter Robertson

Andre Gunther

Kevin Mahooti

Allen Mann

Power supply is facilitated. In accordance with one or more embodiments, a power regulator circuit includes first and second regulators and a controller for controlling operation of the power regulator circuit in standby and normal operational modes. The first and second regulators respectively provide regulated power at main and standby power levels, the standby power level being lower than the main power level. For the standby mode, the controller operates the second regulator for supplying power to an integrated circuit at the standby power level. For transitioning to the normal mode, the controller turns the first regulator on while continuing to operate the second regulator for supplying power to the integrated circuit during a start-up period. After a start-up period (e.g., when the first regulator is up to full power), the controller operates the first regulator for supplying power for operating the processor in a high-frequency mode.

Circuit and method for powering an integrated circuit having first and second power regulators respectively configured and arranged to provide regulated power at main and standby power levels

An electronic timekeeping circuit and a method for operating an electronic timekeeping circuit are described. In one embodiment, an electronic timekeeping circuit includes power supplies and timekeeping circuit components that are grouped into power supply domains. Power is supplied to each of the power supply domains by a corresponding one of the power supplies. Timekeeping registers are duplicated for each of the power supply domains. The timekeeping registers are synchronized between the power supply domains if one of the timekeeping registers is modified or if one of the power supplies is turned off and subsequently turned back on. Other embodiments are also described.

Electronic timekeeping circuit and a method for operating timekeeping circuit

Power control is facilitated. In accordance with one or more embodiments, power is supplied to power rails of an integrated circuit using a power control circuit including a power regulator and a reset circuit that is responsive to a supply voltage. The power regulator provides power to the power rails, based upon a control signal. The reset circuit controls the power regulator to provide power to the power rails independently of the control signal when the supply voltage is below an operational voltage level, and controls the power regulator to provide power to the power rails in response to the control signal when the supply voltage reaches the operational voltage level.

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Sunnyvale, CA, United States of America

Peter Robertson