An Analysis of Data Bus Inversion: Examining Its Impact on Supply Voltage and Single-Ended Signals

Abstract

Advanced-computing demand has grown exponentially over the past several decades [1], [2]. Figure 1 reports computing feature trends, such as number of logic cores, operational frequency, power consumption, system performance measured in terms of the Standard Performance Evaluation Corporation integer (SPECint), and the number of transistors in the processor. The number of transistors, either in a single core or in multiple cores, and the operating frequency have increased to keep up with this demand. However, the typical power, which is indicated by the red cluster dots, has remained relatively constant.