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Summary: Modified Hotspot Cache Architecture: A Low
Energy Fast Cache for Embedded Processors
Kashif Ali Mokhtar Aboelaze
Dept. of Computer Science and Engineering
York University
Toronto, ON. CANADA
Email: {kashif,aboelaze,datta}@cs.yorku.ca
Suprakash Datta
Abstract-- The cache memory plays a crucial role in the perfor-
mance of any processor. The cache memory (SRAM), especially
the on chip cache, is 3-4 times faster than the main memory
(DRAM). It can vastly improve the processor performance and
speed. Also the cache consumes much less energy than the
main memory. That leads to a huge power saving which is
very important for embedded applications. In today's processors,
although the cache memory reduces the energy consumption of
the processor, however the energy consumption in the on-chip
cache account to almost 40% of the total energy consumption
of the processor. In this paper, we propose a cache architecture,
for the instruction cache, that is a modification of the hotspot
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