DYNAMIC VOLTAGE SCALING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide optimal dynamic voltage scaling (DVS) for reducing power consumption of a microprocessor core.

SOLUTION: In a method and a device for a dynamic voltage scaling (DVS) system, actual activities and critical paths inside a microprocessor core are measured using an embedded delay checker (EDC). The critical path in the microprocessor core is the basis for dynamically changing the voltage to the core. A slave ring oscillator (SRO) cell is arranged adjacent to the microprocessor core and provides redundancy to the DVS system by using together with the EDC cell.

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