FASTA: Revisiting Fully Associative Memories in Computer Microarchitecture
Esteban Garzón,
Robert Hanhan,
Marco Lanuzza
et al.
Abstract:Associative access is widely used in fundamental microarchitectural components, such as caches and TLBs. However, associative (or content addressable) memories (CAMs) have been traditionally considered too large, too energy-hungry, and not scalable, and therefore, have limited use in modern computer microarchitecture. This work revisits these presumptions and proposes an energy-efficient fullyassociative tag array (FASTA) architecture, based on a novel complementary CAM (CCAM) bitcell. CCAM offers a full CMOS … Show more
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