Integrated microprocessor system for safety-critical control systems including a main program and a monitoring program stored in a memory device

US8549352B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Thomas Kranz · Rosbach, DE
• Bernhard Giers · Frankfurt am Main, DE

Key dates

• Filing date: Sep 18, 2008
• Grant date: Oct 1, 2013
• Expiry date: May 22, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/2637
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An integrated microprocessor system for safety-critical control systems, comprising at least two microprocessor system modules each comprising at least one processor core, a read/write memory and a memory protection unit, and a read-only memory which is jointly assigned to the processor cores of the microprocessor system modules. Each of the microprocessor system modules executes a main program and a monitoring program which may comprise a plurality of subprograms. If the memory protection unit detects unauthorized operations by one of the programs for accessing a separate address area (A, B) of another program, then the respective memory protection unit assigns a separate address area (A, B) of the read/write memory to the main program and to the monitoring program.