04873459 is referenced by 374 patents and cites 5 patents.

A user-programmable interconnect architecture, which may be used for logic arrays for digital and analog system design, is disclosed. In one embodiment, a plurality of logic cells or modules in a matrix are connected by vertical and horizontal wiring channels. The wiring channels may in turn be programmed by the user to interconnect the various logic cells to implement the required logic function. The wiring channels comprise wiring segements connected by normally open programmable elements situated at the intersection of any two segments to be connected. Sensing circuitry and wiring may be included to allow 100% observability of internal circuit nodes, such as module outputs, from an external pad interface. A universal function module may be configured to implement the popular logic functions and has a physical layout which is conducive to custom circuit design.

Title
Programmable interconnect architecture
Application Number
909261
Publication Number
4873459
Application Date
May 18, 1988
Publication Date
October 10, 1989
Inventor
Justin M Reyneri
Los Altos
CA, US
Ta Pen R Guo
Cupertino
CA, US
Jonathan W Greene
Palo Alto
CA, US
Khaled A El Ayat
Cupertino
CA, US
Abbas A El Gamal
Palo Alto
CA, US
Agent
Lyon & Lyon
Assignee
Actel Corporation
CA, US
IPC
H03K 19/094
View Original Source