Abstract
This paper presents a method to investigate power-performance tradeoffs in digital pipelined designs. The method is applied at the architectural level of the design. It is shown that addressing the tradeoffs at this level results in significant savings in power consumption without impacting the performance. The reduction in power is obtained through reducing the number of registers used in implementing the pipeline stages. The method has been validated by synthesizing a floating-point unit with different pipeline stages and power consumption of the designs were obtained using industry standard tools. It is shown that it is possible to obtain up to 18% reduction in power without affecting the clock period and with less area.
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