Port adapter system including a controller for switching channels upon encountering a wait period of data transfer
US5070477A · kind A · utility
9Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1989 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Mar 23, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A port adapter for an input/output system for a large data processing system. The port adapter is coupled to an I/O processor of that system and also to main memory of the system so that when the port adapter is selected by a system interrupt message from the I/O processor, it can begin and carry on its data transmission between a selected peripheral device and main memory without further assistance. The port adapter has two peripheral interface transceivers so that it can concurrently control data transfers to at least two peripheral devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.