System on chip receiving supply voltage(s) via merged power rail, and mobile system including same
AssigneeSamsung Electronics Co., Ltd.
InventorsJUNGHUN HEO, MYUNGCHUL CHO, YOUN-SIK CHOI
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Abstract
A mobile system includes a SOC and PMIC. The SOC includes a first signal processing circuit and a second signal processing circuit, and generates a dynamic voltage scaling (DVS) control signal based on operating states of the first signal processing circuit and the second signal processing circuit. The PMIC generates a supply voltage whose magnitude is controlled in response to the DVS control signal, and provides the supply voltage to the first signal processing circuit and the second signal processing circuit through a single power rail.
Claims16
A system-on-chip (SoC) comprising:
- a first processing circuit configured to receive a power supply voltage via a power rail;
- a second processing circuit configured to receive the power supply voltage via the power rail;
- and
- a power control circuit configured to generate a dynamic voltage scaling control signal based on an operating state of the first processing circuit and an operating state of the second processing circuit,
- wherein the first processing circuit is configured to provide power data (DATA) to an external device in response to the operating state of the first processing circuit and/or the operating state of the second processing circuit.
A mobile system comprising:
- a system-on-chip (SoC);
- and
- a power management integrated circuit (PMIC) including:
- an interface circuit configured to receive power data including level information of a merged power supply voltage from the SoC;
- a plurality of registers configured to store at least a portion of the power data;
- a comparator configured to compare more than two of output signals of the plurality of registers;
- a selecting circuit configured to select and output one of an output signal of the comparator and the output signals of the plurality of registers in response to a dynamic voltage scaling (DVS) control signal provided from the SOC;
- and
- a power converter configured to generate the merged power supply voltage having a level corresponding to the output signal of the selecting circuit.
A mobile system comprising:
- a system-on-chip (SoC);
- and
- a power management integrated circuit (PMIC),
- wherein the SoC further comprises:
- a first processing circuit configured to receive a power supply voltage via a power rail;
- a second processing circuit configured to receive the power supply voltage via the power rail;
- and
- a power control circuit configured to generate a dynamic voltage scaling control signal based on an operating state of the first processing circuit and an operating state of the second processing circuit,
- wherein the first processing circuit is configured to provide power data (DATA) to an external device in response to the operating state of the first processing circuit and/or the operating state of the second processing circuit.
Dependencies are inferred from the claim text.