Programmable logic array integrated circuits with carry and/or c

Details Programmable logic array integrated circuits with carry and/or c Programmable logic array integrated circuits with carry and/or c

1995-12-18

1997-09-30

Westin, Edward P.

Electronic digital logic circuitry

Multifunctional or programmable

Array

326 39, 326 47, H03K 19177

Patent

active

056729855

ABSTRACT:
Logic regions in a programmable logic array integrated circuit are interconnected in a closed loop or ring by carry and/or cascade connections. Because such a loop or ring has no ends, a user's logic that uses carry or cascade connections can be placed anywhere along the ring. This eliminates a prior art constraint on the placement of a user's logic on the integrated circuit.

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