Method and Apparatus for Signaling On-Line Failure Detection.
Abstract
Method and apparatus permitting a multi-module digital system, such as a computer, having built-in test hardware associated with each module, including a plurality of signal processing units to communicate over two wire circuitry not only the existence of a failure of a particular module, but also its causality. This is accomplished by means of a four state signaling circuit inpterposed between each signal processing unit of a particular module and a module built-in test circuit which operates once an error output is reported by a signal processing unit to provide a further four state indication of the details of the failure. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 10, 1983
- Accession Number
- ADD010245
Entities
People
- Jan S. Herman
- Peter A. Morrison