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US 7,952,417 B2Granted
Power control circuit
AssigneeFuture Waves UK Limited
InventorAlison Burdett
Life of this patent
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AssigneeFuture Waves UK Limited
InventorAlison Burdett
Estimating the term…
Apparatus for controlling an integrated circuit comprises a power control device for controlling the power to at least part of the integrated circuit, the power control device is connected to a first input, for receiving a power-down signal, and a second input, for receiving a power-up signal, the power control device is adapted to power-up the at least part of the integrated circuit if a power-up signal is received at the second input when the at least part of the integrated circuit is in a powered-down state, and the power control device is further adapted to maintain the at least part of the integrated circuit in the powered-up state regardless of any signal received at the second input when the at least part of the integrated circuit is in a powered-up state, the apparatus is arranged so that the second input is also connected to a component of the integrated circuit and the apparatus comprising means for sending a signal to the component of the integrated circuit via the second input when the at least part of the integrated circuit is in the powered-up state.
A mixed signal chip comprising a serial interface and a power control device for controlling the power to at least part of an integrated circuit on the chip, wherein said power control device is connected to said serial interface for receiving a power-down signal, and to an external control line separate from the serial interface for receiving a power-up signal, the power control device being adapted to power-up the at least part of the integrated circuit if a power-up signal is received at the external control line when the at least part of the integrated circuit is in a powered-down state, and the power control device being further adapted to maintain the at least part of the integrated circuit in the powered-up state regardless of any signal received at the external control line when the at least part of the integrated circuit is in a powered-up state, the mixed signal chip being arranged so that the external control line is also connected to a component of the integrated circuit with that component being configured to receive data via the external control line when the at least part of the integrated circuit is in the powered-up state.
Dependencies are inferred from the claim text.