Computer system with support for a subtractive agent on the secondary side of a PCI-to-PCI bridge
US6230227A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1998 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Dec 11, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/404
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer system for supporting a subtractive agent on a secondary PCI bus is provided. A bridge resides between a primary PCI bus and a secondary PCI bus. Where both a master device and a target device reside on the secondary PCI bus, the bridge employs one of two protocols to permit successful completion of the transaction. The protocol used depends upon the type of transaction sought by the master device. Once the subtractive agent is identified by address, the bridge keeps track of its location. Thus, further operations targeting the subtractive agent run without requiring either protocol to be used. Further, the need for a specialized signaling protocol to access the subtractive agent is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.