Field programmable gate array logic module configurable as combi

Details Field programmable gate array logic module configurable as combi Field programmable gate array logic module configurable as combi

1995-03-10

1997-05-27

Westin, Edward P.

Electronic digital logic circuitry

Multifunctional or programmable

Having details of setting or programming of interconnections...

326 39, H03K 19177

Patent

active

056336012

ABSTRACT:
A logic module 400 for use in a field programmable gate array 100 can be selectively reconfigured to perform over 1800 Boolean combinational functions on each output 431-432, to operate as a full adder with sum and carry outputs, or to form the sequential function of a D-latch or a D-flipflop. The logic module has ten input terminals 411-418, 421-422 and two output terminals 431-432. The logic module is comprised of two-input multiplexors 500 and 600 which are used to form both the combinational and sequential circuits, thereby efficiently utilizing space on gate array 100. The D-latch and D-flipflop have a preset input terminal 415 and a clear input terminal 414. Furthermore, the D-latch can be configured to be latched on either a low level or a high level clock signal on terminal 411, while the D-flipflop can be configured to be triggered by either a low to high transition or a high to low transition of a clock signal on terminal 411. A logic module 401 can be configured to provide both a Q and !Q outputs of the D-latch or D-flipflop on output terminals 431-432. A logic module 402 can be configured to additionally provide a circuit of two D-latches.

REFERENCES:
patent: 4642487 (1987-02-01), Carter
patent: 4918641 (1990-04-01), Jigour et al.
patent: 5122685 (1992-06-01), Chan et al.
patent: 5258668 (1993-11-01), Cliff et al.
patent: 5386154 (1995-01-01), Goetting et al.
patent: 5451887 (1995-09-01), El Ayat et al.

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