Method, system and apparatus for a computer subsystem interconnection using a chain of bus repeaters
US6581126B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 1999 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | May 19, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0831
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention discloses methods and apparatus for broadcasting information across an interconnect that includes a plurality of nodes each connected to its adjacent node(s) using one or more links. The nodes can emit cells containing transaction sub-actions onto the links. As a node receives a cell the node retransmits the cell onto other links as the cell is being received. Thus, reducing the latency imposed by the node. The node also captures the transaction sub-action while it the cell is retransmitted. The node responds to the transaction sub-action by manipulating shared handshake lines that are bussed with the other nodes. The invention enables snooping cache protocols to be successfully used in a larger multi-processor computer system than the prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.