Methods and apparatus for carrying out transactions in a computer system
US5249297A · kind A · utility
21Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1991 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Apr 29, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/368
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A protocol for carrying out transactions in a multiple-processor computer system comprises: dividing the transaction cycle into four quadrature states, an arbitrate state, an I/O state, a slave address state and a virtual memory state. The protocol enables the processors to determine before arbitrating whether the memory device is busy, which reduces the number of "busied" transactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.