Null value propagation for FAST14 logic

Details Null value propagation for FAST14 logic Null value propagation for FAST14 logic

2006-05-30

2006-05-30

Le, Don (Department: 2819)

Electronic digital logic circuitry

Function of and, or, nand, nor, or not

Field-effect transistor

C326S093000

Reexamination Certificate

active

07053664

ABSTRACT:
Power consumption in NDL designs utilizing FAST14 technology can be controlled via the introduction and propagation of null value 1-of-N signals in selected areas of the logic. A shared logic tree circuit, which might perform an arithmetic function or a multiplexing function, evaluates a 1-of-N input logic signal and produces a 1-of-N output logic signal having a null value if the input has a null value. A null value signal is defined as a valid multiwire 1-of-N signal used in NDL logic having N wires where N is greater than 2, where no one of the N wires of the 1-of-N signal is asserted when the NDL gate evaluates.

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