Programmable array interconnect network

US5631578A · kind A · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Kim P. N. Clinton · South Burlington, US
• Scott Whitney Gould · South Burlington, US
• Steven Paul Hartman · Round Rock, US
• Joseph A. Iadanza · South Burlington, US
• Frank Ray Keyser, III · Colchester, US
• Eric Ernest Millham · South Burlington, US

Key dates

• Filing date: Jun 2, 1995
• Grant date: May 20, 1997
• Expiry date: Jun 2, 2015

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03K19/17704
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

A programmable interconnection system for a programmable array includes pluralities of parallel buses for rows and columns of logic cells arranged in the array. Two groups of seven buses are provided for each row or column of logic cells. The buses include conductors connectable to each other, and selectively connectable to, or isolated from, the logic cells. A hierarchy of conductor lengths is disclosed to provide intra-sector and inter-sector bussing. Staggered switching is employed for adjacent sector access.