Enhanced VMEbus protocol utilizing pseudosynchronous handshaking and block mode data transfer
US5388231A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 12, 1994 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Apr 12, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4213
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A pseudo-synchronous fast transfer handshake protocol compatible for use on a VMS backplane bus having a master functional module and a slave functional module logically interconnected by a data transfer bus. The data transfer bus includes a data strobe signal line and a data transfer acknowledge signal line. To accomplish the handshake, the master transmits a data strobe signal of a given duration on the data strobe line. The master then awaits the reception of a data transfer acknowledge signal from the slave module on the data transfer acknowledge signal line. The slave then responds by transmitting a data transfer acknowledge signal of a given duration on the data transfer acknowledge signal line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.