Output structure with cascaded control signals for logic...

Details Output structure with cascaded control signals for logic... Output structure with cascaded control signals for logic...

2009-04-02

2010-06-29

Le, Don P (Department: 2819)

Electronic digital logic circuitry

Multifunctional or programmable

Array

C326S038000

Reexamination Certificate

active

07746112

ABSTRACT:
A cascading output structure for logic blocks in an integrated circuit. An exemplary integrated circuit includes an array of interconnected logic blocks, each including a logic circuit, an output multiplexer, and a select multiplexer. The logic circuit has an input coupled to a logic block input. The output multiplexer has first and second data inputs respectively coupled to first and second outputs of the logic circuit, a select input, and an output coupled to a logic block output. The select multiplexer has a first data input coupled to a cascade select input of the logic block, a second data input, and an output coupled to the select input of the output multiplexer. The output of the select multiplexer is also coupled to a cascade select output of the logic block. The cascade select input of the logic block is coupled to the cascade select output of an adjacent logic block.

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