Semiconductor integrated circuit and method for controlling power supply in semiconductor integrated circuit
AssigneeCanon Kabushiki Kaisha
InventorYoshihisa Nomura
Life of this patent
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Abstract
A semiconductor integrated circuit includes a control unit that controls power supply to a plurality of power supply domains respectively corresponding to a plurality of functions included in an apparatus. A circuit integrates bus signals between the plurality of power supply domains is included in a specific power supply domain out of the plurality of power supply domains, and the control unit controls the power supply to the specific power supply domain to be performed prior to the other power supply domains connected with the specific power supply domain.
Claims13
A semiconductor integrated circuit comprising:
- a control unit configured to control supply of power to a plurality of power supply domains respectively corresponding to a plurality of functions included in an apparatus, wherein
- a circuit configured to integrate bus signals between the plurality of power supply domains is included in a specific power supply domain out of the plurality of power supply domains, and
- the control unit performs control such that the supply of power to the specific power supply domain is carried out prior to the other power supply domains connected with the specific power supply domain.
A method for controlling power supply to a plurality of power supply domains, in a semiconductor integrated circuit including the plurality of power supply domains respectively corresponding to a plurality of functions included in an apparatus,
- the semiconductor integrated circuit including, in a specific power supply domain out of the plurality of power supply domains, a circuit configured to integrate bus signals between the plurality of power supply domains,
- the method comprising:
- controlling the power supply to the specific power supply domain to be performed prior to the other power supply domains connected with the specific power supply domain.
Dependencies are inferred from the claim text.