Run-time voltage hopping for low-power real-time systems

This paper presents a novel run-time dynamic voltage scaling scheme for low-power real-time systems. It employs software feedback control of supply voltage, which is applicable to off-theshelf processors. It avoids interface problems from variable clock frequency. It provides efficient power reduction by fully exploiting slack time arising from workload variation. Using software analysis environment, the proposed scheme is shown to achieve 80~94% power reduction for typical real-time multimedia applications.

• Type: Conference
• Year: 2000
• Where: DAC
• Authors: Seongsoo Lee, Takayasu Sakurai
• Keywords: DAC 2000, Design Automation, Efficient Power Reduction, Low-power Real-time Systems, Voltage Scaling Scheme