Portable electronic device and core swapping method thereof
First Claim
1. A portable electronic device, comprising:
- a power management unit configured to simultaneously provide a first voltage and a second voltage;
a multi-core cluster, comprising;
a first processing core configured to be powered by the first voltage and operate at a first operating frequency; and
a second processing core configured to be powered by the first voltage or the second voltage and operate at a second operating frequency;
a third processing core configured to be powered by the second voltage and operate at a third operating frequency;
a first switch coupled between the power management unit and the third processing core for receiving the second voltage and configured to selectively provide the second voltage to the third processing core or stop providing the second voltage to the third processing core according to a first control signal; and
a second switch coupled between the power management unit and the second processing core,wherein the second switch is selectively switched to receive one of the first voltage and the second voltage according to a second control signal, so as to provide the one of the first voltage and the second voltage to the second processing core.
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Accused Products
Abstract
A portable electronic device is provided. A power management unit provides a first voltage and a second voltage. A multi-core cluster includes a first processing core configured to be powered by the first voltage and operate at a first operating frequency and a second processing core configured to be powered by the first voltage or the second voltage and operate at a second operating frequency. A third processing core is configured to be powered by the second voltage and operate at a third operating frequency. A first switch is configured to selectively provide the second voltage to the third processing core or stop providing the second voltage to the third processing core according to a first control signal. A second switch is configured to selectively provide the first voltage or the second voltage to the second processing core according to a second control signal.
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Citations
21 Claims
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1. A portable electronic device, comprising:
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a power management unit configured to simultaneously provide a first voltage and a second voltage; a multi-core cluster, comprising; a first processing core configured to be powered by the first voltage and operate at a first operating frequency; and a second processing core configured to be powered by the first voltage or the second voltage and operate at a second operating frequency; a third processing core configured to be powered by the second voltage and operate at a third operating frequency; a first switch coupled between the power management unit and the third processing core for receiving the second voltage and configured to selectively provide the second voltage to the third processing core or stop providing the second voltage to the third processing core according to a first control signal; and a second switch coupled between the power management unit and the second processing core, wherein the second switch is selectively switched to receive one of the first voltage and the second voltage according to a second control signal, so as to provide the one of the first voltage and the second voltage to the second processing core. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A core swapping method of a portable electronic device, wherein the portable electronic device comprises a multi-core cluster, which includes a first processing core operating at a first frequency and a second processing core operating at a second frequency, a third processing core operating at a third operating frequency, a power management unit, a first switch and a second switch coupled to the power management unit, wherein a power consumption of the first processing core is larger than a power consumption of the second processing core, and the power consumption of the second processing core is larger than a power consumption of the third processing core, the method comprising:
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simultaneously providing a first voltage and a second voltage by the power management unit; determining whether the third processing core is enabled or disabled; when it is determined that the third processing core is enabled, switching the second switch to receive the first voltage so as to provide the first voltage to power the second processing core via the second switch, and switching the first switch to receive the second voltage and providing the second voltage to power the third processing core; and when it is determined that the third processing core is disabled, switching the second switch to receive the second voltage so as to provide the second voltage to power the second processing core via the second switch, and switching the first switch to stop providing the second voltage to the third processing. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification