Multiprocessor system for loading microprograms into a RAM control store of a bus controller
US4884195A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 1986 |
| Grant date | Nov 28, 1989 |
| Priority date | — |
| Expiry date | Aug 11, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/177
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a multiprocessor system having a plurality of independent modules including a processor and a memory where the modules are connected via a common transmission path, a transmission control section for handling the interface with the transmission path between the modules is also equipped with a dedicated processor and controlled by its own microprogram. In accordance with the present invention, the memory for storing the microprogam therein is constituted by a writable memory, and the system is so configured that the microprogram may be loaded not only from the inside of the concerned module but also from another module through the common transmission path. Since the microprogram of the transmission control section can thus be loaded from two routes, the system can be configured or reconfigured with significant flexibility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.