Local bus interface for controlling information transfers between units in a central subsystem
US4323967A · kind A · utility
40Cited by
6References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 15, 1980 |
| Grant date | Apr 6, 1982 |
| Priority date | — |
| Expiry date | Apr 15, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4059
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a data processing system, a central subsystem includes a plurality of special purpose processing units with one of the processing units serving as a control processing unit within a central subsystem. The processing units are coupled to a common subsystem bus for the transfer of data, control information, and address information within the central subsystem. Access to the subsystem bus is allocated by a bus control unit which also interfaces the central subsystem with other processing units such as a system memory or system I/O devices that are included in the data processing system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.