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首页> 外文期刊>IEEE Journal of Solid-State Circuits >A dynamic voltage scaled microprocessor system
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A dynamic voltage scaled microprocessor system

机译:动态电压缩放微处理器系统

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摘要

A microprocessor system is presented in which the supply voltage and clock frequency can be dynamically varied so that the system can deliver high throughput when required while significantly extending battery life during the low speed periods. The system consists of a dc-dc switching regulator, an ARM V4 microprocessor with a 16-kB cache, a bank of 64-kB SRAM ICs, and an I/O interface IC. The four custom chips were fabricated in a standard 0.6-/spl mu/m 3-metal CMOS process. The system can dynamically vary the supply voltage from 1.2 to 3.8 V in less than 70 /spl mu/s. This provides a throughput range of 6-85 MIPS with an energy consumption of 0.54-5.6 mW/MIP yielding an effective energy efficiency as high as 26200 MIPS/W.
机译:提出了一种微处理器系统,其中电源电压和时钟频率可以动态变化,以便在需要时该系统可以提供高吞吐量,同时在低速期间显着延长电池寿命。该系统由一个DC-DC开关稳压器,一个具有16kB高速缓存的ARM V4微处理器,一组64kB SRAM IC和一个I / O接口IC组成。四个定制芯片以标准的0.6- / spl mu / m 3金属CMOS工艺制造。系统可以在不到70个/ spl mu / s的范围内动态地将电源电压从1.2 V改变为3.8V。这提供了6-85 MIPS的吞吐量范围,能耗为0.54-5.6 mW / MIP,从而产生了高达26200 MIPS / W的有效能效。

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