Avoiding livelock when performing a long stream of transactions
US6237055A · kind A · utility
3Cited by
12References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1998 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Dec 3, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/364
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An arbiter comprising logic circuitry configured to delay granting bus ownership to an agent X in response to receiving a first signal which indicates that a device coupled to the bus is not available to service transactions directed at the device over the bus. For instance, the device may be a bridge and the grant is delayed if an inbound pipe of the bridge is full. The arbiter may provide a borrowed grant to an outbound pipe of the device for performing a transaction on the bus while waiting for an inbound pipe of the device to become available.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.