An energy efficient TLB design methodology

Abstract

This paper researches translation look-aside buffer (TLB) of embedded processor. Based on an analysis of design-related factors: power, area, critical path and performance of the research model - Godson-I, a low-power TLB design is proposed without sacrifice of performance and timing. Using this method, the following results are achieved: power of TLB-RAM reduces 92.7% and area of TLB-RAM reduces 50%. Compared with other methods, the hit rate of this design is much higher and the accessing conflict to RAM between ITLB and DTLB is much reduced. Although our work targets to Godson-I, the proposed methodology should be applicable to other designs.