System for transferring data between a processor and a system bus including a device which packs, unpacks, or buffers data blocks being transferred
US5471632A · kind A · utility
33Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1992 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Jan 10, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4018
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data transfer device for coupling a processor to a system bus. The data transfer device includes data packers and unpackers for converting between data blocks of a first size and data blocks of a second size, e.g. between bytes or words and longwords. The data transfer device also includes an internal buffer memory system for storing the data being transferred. The processor and system bus are selectively coupled, each one at a time, via a direct data path, to the internal buffer memory system permitting both the processor and the system bus to independently read and write data, each at their normal data transfer rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.