Field programmable stateful logic array

Kyosun Kim, Sangho Shin, Sung Mo Kang

Research output: Contribution to journalArticle

45 Scopus citations

Abstract

Recently, researchers have demonstrated that memristive switches can be used to implement logic and latches as well as memory and programmable interconnects. In this paper, we propose a novel stateful logic pipeline architecture based on memristive switches. The proposed architecture mapped to the field programmable nanowire interconnect fabric produces a field programmable stateful logic array, in which general-purpose computation functions can be implemented by configuring only nonvolatile nanowire crossbar switches. CMOS control switches are used to isolate stateful logic units so that multiple operations can be executed in parallel. Since basic operation of the stateful logic, namely, material implication, cannot fan out, a new basic AND operation which can duplicate output is proposed. The basic unit of the proposed architecture is designed to execute multiple basic operations concurrently in a step so that each basic unit implements a large fan-in OR or NOR gate. The fine-grain ultradeep constant-throughput pipeline properties pose new design automation problems. We address some of the issues, in particular logic representation using OR-inverter graphs, two-level optimization synthesis strategy, data synchronization with data forwarding, stall-free pipelined finite state machines, and constraints for synthesis and mapping onto the fabric.

Original languageEnglish (US)
Article number6071085
Pages (from-to)1800-1813
Number of pages14
JournalIEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Volume30
Issue number12
DOIs
StatePublished - Dec 1 2011

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering

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