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9th International Conference on VLSI Design: VLSI in Mobile Communication
VaWiRAM: a variable width random access memory module
Bangalore, INDIA
January 03-January 06
ISBN: 0-8186-7228-5
L.K. John, Dept. of Comput. Sci. & Eng., Univ. of South Florida, Tampa, FL, USA
Presents the design of a variable width RAM (VaWiRAM) which will be extremely useful in building flexible memory systems. Principles of reconfigurability of programmable logic and programmable interconnect is incorporated into random access memories to achieve this flexibility. The chip can be reconfigured by setting a few configuration pins on the memory chip. A VaWiRAM reconfigurable between widths 1 and W/sub max/ can be constructed with the extra cost of W/sub max/-1 pass gates, W max/2- to -1 multiplexers, and [log/sub 2/[log/sub 2/(k)+1]] mode pins. The paper discusses the architecture of the proposed VaWiRAMs, and analyzes the trade-offs in their design.
Index Terms:
reconfigurable architectures; random-access storage; memory architecture; programmable logic devices; integrated circuit interconnections; VaWiRAM; variable width random access memory; flexible memory systems; reconfigurability; programmable logic; programmable interconnect; configuration pins; pass gates
Citation:
L.K. John, "VaWiRAM: a variable width random access memory module," vlsid, pp.219, 9th International Conference on VLSI Design: VLSI in Mobile Communication, 1996
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