Identification apparatus for use in a controller to facilitate the diagnosis of faults
US4468731A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1981 |
| Grant date | Aug 28, 1984 |
| Priority date | — |
| Expiry date | Dec 15, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing system includes a main memory system which couples in common with a central processing unit to a bus for transfer of data between the central processing unit and memory system. The memory system includes a plurality of memory controllers, each of which controls the operation of a number of memory modules. Each controller also includes reconfiguration apparatus for enabling reconfiguration of the memory system upon detection of a fault. The reconfiguration apparatus includes apparatus for identifying the type and design revision of the controller associated therewith enabling more expeditious fault diagnosis based upon status signals provided by the controller during diagnostic testing by the central processing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.