Dedicated logic cells employing sequential logic and control...

Details Dedicated logic cells employing sequential logic and control... Dedicated logic cells employing sequential logic and control...

2006-10-09

2008-08-26

Cho, James H (Department: 2819)

Electronic digital logic circuitry

Multifunctional or programmable

Array

C326S047000

Reexamination Certificate

active

07417456

ABSTRACT:
A dedicated logic cell in a programmable logic structure is described that comprises the following primary components: a configurable logic function or look-up table (LL), a dedicated logic function (DL), a sequential logic function (LS), and a control logic function (LC). In this illustration, the dedicated logic cell comprises two configurable logic functions, two sequential logic functions, a dedicate logic function, and a control logic function. In a first embodiment, the dedicated logic cell is constructed with a combination of configurable logic functions that are coupled to a dedicated logic function in order to perform a four 2-input function, an AND function, an OR function, or an XOR function. In a second embodiment, the dedicated logic cell is constructed with a combination of configurable logic functions that are coupled to a dedicated logic function in order to perform a four 2-to-1 multiplexer function. In a third embodiment, the dedicated logic cell is constructed with a plurality of configurable logic functions that operate as a two 6-input function with separate inputs. In a fourth embodiment, the dedicated logic cell is constructed with a combination of a configurable logic function with sequential logic functions that operate as a loadable, resettable, clearable shift register. In a fifth embodiment, the dedicated logic cell is constructed with a combination of configurable logic functions, a dedicated logic function, and sequential logic functions that operate as an accumulator.

REFERENCES:
patent: 4963768 (1990-10-01), Agrawal et al.
patent: 5121006 (1992-06-01), Pedersen
patent: 5614844 (1997-03-01), Sasaki et al.
patent: 5912572 (1999-06-01), Graf, III
patent: 6144262 (2000-11-01), Kingsley

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