Power supply circuit with power saving capability

Details Power supply circuit with power saving capability Power supply circuit with power saving capability

H - Electricity

02

J

H02J 13/00 (2006.01) G06F 1/32 (2006.01)

Patent

CA 2176677

A power supply circuit efficiently saves electric energy consumed by a central processing unit and a peripheral assembly through coordination between power supply modes of the central processing unit and the peripheral assembly. The central processing unit has a register for establishing a status of an internal power supply of the central processing unit, a first mechanism for changing the internal power supply into the status established by the register, and a second mechanism for outputting a status signal indicative of the status. The peripheral assembly having a peripheral circuit, a peripheral device, and a power supply control block for changing power supply statuses and clock statuses of the peripheral circuit and the peripheral device based on the status signal outputted from the second mechanism.

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