Data processing system with an enhanced communication control system
US4674037A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1985 |
| Grant date | Jun 16, 1987 |
| Priority date | — |
| Expiry date | Jan 11, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/167
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data buffer is connected to the first and second processor and the first processor sends a start signal to the second processor, which responds to the start signal by reading data from a data source, such as an input/output device, and then writes the read out data into the data buffer. After conclusion of the writing operation, the second processor sends an end signal to the first processor which is admitted to start sending data stored in the buffer to a host processor after receipt of the start signal. The start signal and the end signal are provided to the second processor and the first processor respectively, after passing through a synchronizing circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.