Distributed data bus sequencing for a system bus with separate address and data bus protocols
US5666551A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1996 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Jan 24, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4217
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data bus sequencer for use by nodes coupled to a system bus for associating data transactions and address transactions on the bus. A mechanism for tracking address and command transactions occurring on the bus produces, for each address and command transaction occurring on the address bus, a corresponding sequence number tag. Those sequence number tags corresponding to address and command transactions for which data transactions are to be initiated by the node are stored by the data bus sequencer. The data bus sequencer further includes circuitry for counting the number of data transactions occurring on the data bus, comparing the counted number of data transactions to the stored sequence number tags and initiating data transactions on the data bus in response to the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.