Bridge device for transferring data using master-specific prefetch sizes
US6636927B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1999 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Sep 24, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4059
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides bridge device for transferring data using master-specific prefetch sizes. The bridge device is coupled between a first bus and a second bus with the master devices being coupled to the first bus and the slave devices being coupled to the second bus. The bridge device includes a set of prefetch control registers, a prefetch buffer, and bridge control circuitry. The set of prefetch control registers is arranged to store prefetch sizes of data to be prefetched for a set of the master devices with one prefetch control register being provided for a master device. The prefetch buffer is arranged to store data for transfer. The bridge control circuitry is coupled to the prefetch control registers and the prefetch buffer for transferring data between a source device and a destination device. The bridge control circuitry is further arranged to receive a first data transfer request from a selected master device for transferring data between the selected master device and a selected slave device. The bridge control circuitry issues a second data transfer request to the selected slave device for transferring the data. The bridge control circuitry receives the req…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.