Arrangement for micro instruction control

US4231085A · kind A · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Dieter Bazlen · Stuttgart, DE
• Rolf Berger · Neckartenzlingen, DE
• Arnold Blum
• Dietrich W. Bock · Schenefeld, DE
• Herbert Chilinski · Schenefeld, DE
• Hellmuth R. Geng · Herrenberg, DE
• Johann Hajdu
• Fritz Irro
• Siegfried Neuber · Sindelfingen, DE
• Udo Wille · Holzgerlingen, DE

Key dates

• Filing date: Aug 18, 1978
• Grant date: Oct 28, 1980
• Expiry date: Aug 18, 1998

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F9/226
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

In a micro-controlled data handling system the number of lines and pins required to transfer control signals from the microprogram controls to be integrated circuit modules controlled by such signals is conserved by using two bussing paths for distributing the control signals to the modules. A first path is dedicated exclusively to pre-decoded control signal functions and a second path is shared for transferring both data and control signal functions. Each controlled module contains an additional decoding circuit for combinationally decoding control signal functions received through both paths.