Logic system of logic networks with programmable selected functi

Details Logic system of logic networks with programmable selected functi Logic system of logic networks with programmable selected functi

1992-11-10

1994-10-18

Westin, Edward P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

364764, H03K 19173, H03K 19086

Patent

active

053571525

ABSTRACT:
A logic system comprising one or more logic networks that can perform a variety of preconfigured or preconfiguarable logic functions. Each logic network is functionally separate from but operatively associated with one or more programmable circuits from which the logic network receives various logic signals. A first logic signal selects or preconfigures the desired logic function to be performed by the or each logic network while a second logic signal controls the operation of the selected logical function. The first logic signal can select a particular logic function to be performed by the logic network based on the contents of programmable cells in the network that are separate from the programmable circuits that supply the logic signals. Alternatively, the first logic signals can switch between various sub-networks each dedicated to performance of a preconfigured logic function. In this manner, the programmable circuit can essentially be dedicated to selecting which of various predetermined logic functions is to be utilized and is relieved of significant functional overhead associated with data manipulation. This can permit a smaller size programmable logic, gate or memory array to be used to control a logic operation of a given complexity, or a given size of array to control more complex operations. Both the programmable circuit(s) and the logic network(s) can be integrated in a single semiconductor chip.

REFERENCES:
patent: Re34363 (1993-08-01), Freeman
patent: 4872137 (1989-10-01), Jennings, III
patent: 4935737 (1990-06-01), Izbicki et al.
patent: 4982114 (1991-01-01), Nakamura et al.
patent: 5233241 (1993-08-01), Nishimori
patent: 5243238 (1993-09-01), Kean
Carver Mead, et al, Section 5.5 "The Arithmetic Logic Unit," Introduction To VLSI Systems, 1980, pp. 150-154.
Roy A. Wood, "A High Density Programmable Logic Array Chip," IEEE Transactions on Computers, vol. C-28, No. 9, Sep. 1979, pp. 602-608.
Steve Landry, "Application-specific ICs, relying on RAM, implement almost any logic function", Electronic Design, Oct. 31, 1985, pp. 123-130.
"Fitting Programmable Logic", IEEE Spectrum, Mar. 92, Clark.

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