High speed module interconnection bus
US4998244A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1989 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Jul 17, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/563
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for providing communication among N modules connected to a common communication bus uses a bus structure with a reserve line for signaling the occurrence of a reservation time slot during which time each of the N modules which have information to transmit may reserve a time for transmission over the bus. A plurality of at least N data lines are used for transmission of data words over the bus. Each of the N modules are also assigned use of one of the plurality of data lines for signaling during the reservation time slot that the module has information to transmit over the bus. The reserve line is also used for signaling, that a word of data being transmitted over the plurality of data lines is a last word in a current transmission to be transmitted by the module currently transmitting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.