Performance Enhancement Guaranteed Cache Using STT-RAM Technology

Spin Transfer Torque RAM (STT-RAM) is a form of computer data storage which allows data items to read and write faster. Every peripheral circuit have some static power consumption, which is consumed while there is no circuit activity. The main objective of the paper is to reduce the static power consumption in peripheral circuits with the help of STT-RAM technology. Instead of fetching instructions from main memory (L1 instruction cache) a tiny buffer called loop cache is used to serve instructions to the processor, in order to save power. The efficient power down strategy and nonvolatility of STT-RAM combined with the loop caches, leads to reduced power consumption. Further to increase the efficiency of the system Performance Enhancement Guaranteed (PEG) cache is encapsulated with the STT-RAM technology. Keywords—Spin-Transfer Torque RAM (STT-RAM), Caches, instruction caches, loop caches.