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2010 East-West Design & Test Symposium
Microprogram control unit with code sharing and extended microinstruction format
St. Petersburg, Russia
September 17-September 20
ISBN: 978-1-4244-9555-9
The paper presents a synthesis method that allows reduction of the number of look-up table (LUT) elements in logic circuits of compositional microprogram control units (CMCU) with code sharing. The method is mainly targeted for field-programmable gate arrays (FPGA) with embedded-memory blocks (EMB) but can be also used in case of Complex Programmable Logic Devices (CPLD). The main idea of the method is to use classes of pseudoequivalent operational linear chains, stored in control memory of the unit, to save LUT elements. The article contains conditions for application of the method, example of design and results of synthesis in Xilinx ISE.
Index Terms:
table lookup,field programmable gate arrays,microprogramming,FPGA,code sharing,extended microinstruction format,lookup table,compositional microprogram control unit,field programmable gate array,complex programmable logic device,pseudoequivalent operational linear chain,CPLD,Field programmable gate arrays,Table lookup,Bismuth,Logic circuits,Optimization,Binary codes,Digital systems
Citation:
"Microprogram control unit with code sharing and extended microinstruction format," ewdts, pp.73-76, 2010 East-West Design & Test Symposium, 2010
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