VMEbus


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VMEbus

A widely accepted backplane interconnection bus system developed by a consortium of companies led by Motorola, now standardised as IEEE 1014.

VMEbus

(VersaModule Eurocard BUS) An expansion bus technology developed by Motorola, Signetics, Mostek and Thompson CSF in the early 1980s. It is defined by the ANSI/IEEE 1014-1987 standard. Supporting up to 21 cards in a single backplane, VMEbus is widely used in industrial, telecommunications and military applications with products available from several hundred manufacturers worldwide. VMEbus cards (VME cards) come in 3U, 6U and 9U Eurocard formats (see Eurocard).

In 1995, VME64 was introduced, which increased the data and addressing paths from 32 to 64 bits and added several enhancements. However, VME boards can be VME64 compliant and provide less than 64 bits of data transfer and/or addressing. In 1997, VME64x (VME64 eXtensions) added features such as new pin connections, support for 3.3 volts and hot swap capability. See VXI, VITA and PMC.
References in periodicals archive ?
MicroTCA and VMEbus have complementary strengths which can be used to implement solutions for the rapidly growing class of networked applications much better than either technology alone," said Paul Virgo, Director of Marketing, MicroTCA Platform, Embedded Communications Computing, Motorola.
This can reduce the total number of bridges that VMEbus product vendors and end-users require for bandwidth management on the host card.
Motorola is first to market with a product that takes advantage of a radical new VMEbus to PCI-X bridge, the Tundra Tsi148(TM), using the VMEbus two-edge source synchronous transfer (2eSST) protocol for significantly faster VMEbus data transfer rates.
The 2eSST VMEbus Bridge chip supports the VME 2eSST synchronous protocol, which can provide data transfer rates up to 320 Mbytes/second for high-performance data throughput.
This can reduce the total number of bridges that VMEbus product vendors and end-users - in the military, industrial automation, communications, storage and medical industries - require for bandwidth management on the host card.
The proposal elements are intended to provide increased bandwidth on a VMEbus platform where both the parallel bus and switched serial fabric will coexist at the same time.
The VXS1 has all the features one would expect from a processor board that redefines VMEbus performance, including a Marvell(R) MV64460 PowerPC System Controller (Discovery III) bridge chip and 2 Gigabit Ethernet ports.
Today's VMEbus Technology While Protecting Existing Customer Investments
since 1987, VMETRO is the world's largest manufacturer of bus analyzers for standard buses such as VMEbus and PCI.
Mission Viejo, CA) will enable engineers to develop and deploy real-time Windows NT Embedded-based systems across Dynatem's suite of VMEbus, CompactPCI, and standalone embedded processor modules.
Tsi148 VMEbus interface chip with 2eSST capabilities for 320MB/s transfer rate across standard VMEbus