Apparatus for arbitrating non-queued split master devices on a data bus
US6948019B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2002 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Jun 25, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/364
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A slave device on a data bus has a register that stores a non-queued split master vector containing bits identifying whether a transaction with corresponding master devices have been split. An input gate is responsive to the status of the slave device and to receipt of a command from a master device when the slave device status is busy to set a bit in the non-queued split master vector identifying that the transaction with the corresponding master device is split. An output gate is responsive to a not busy status of the slave device to output the non-queued split master vector to the arbiter to re-arbitrate use of the data bus among the previously-split non-queued master devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.