Device and method for interprocessor communication using mailboxes owned by processor devices
US5608873A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1996 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Jul 3, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/167
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device and method for providing inter-processor communication in a multi-processor architecture. A post office RAM has a plurality of mailboxes. Each mailbox is write-accessible by one port, but is read-accessible by the other ports. Thus, a processor device on a port has write-access to one mailbox, but can read the other mailboxes in the post office. A transmitting processor communicates with a receiving processor, by utilizing the post office. The transmitting processor writes information into its own mailbox, and signals a receiving processor. The receiving processor determines which of the processor devices signalled it, and reads the information in the transmitting processor's mailbox.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.