Memory-resource-driven arbitration
US5287477A · kind A · utility
54Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1991 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Aug 7, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0607
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus to improve memory performance in a computer bus system. Memory is divided into interleaved blocks and memory addresses are mapped into block identification numbers. Master devices keep track of which parts of memory are busy by storing memory block identification numbers in local queues whenever memory is accessed. Block identification numbers are removed from local queues when the memory transaction is complete. Master devices arbitrate for access to the bus for memory transactions only if the target memory block identification number is not in the local queue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.