Programmable logic device having logic array block...

Details Programmable logic device having logic array block... Programmable logic device having logic array block...

2007-03-09

2008-11-25

Tan, Vibol (Department: 2819)

Electronic digital logic circuitry

Multifunctional or programmable

Array

C326S039000

Reexamination Certificate

active

07456653

ABSTRACT:
A PLD with LAB interconnect lines that span adjacent LABs in the array and that have the ability to interconnect two logic elements in the different LABs. The PLD includes a plurality of LABs arranged in an array and a plurality of inter-LAB lines interconnecting the LABs of the array. Each of the LABs include a predetermined number of logic elements, one or more control signals distributed among the predetermined number of logic elements in the LAB, and LAB lines spanning between logic elements in different LABs in the array. In various embodiments, the LAB lines are arranged in a staggered pattern with a predetermined pitch between the lines. In other embodiments, the control signals of adjacent LABs can overlap, allowing control signals to be routed to the logic elements of adjacent LABs.

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