The VMEbus specification defines an interfacing system used to interconnect microprocessors, data storage and peripheral control devices in a closely-coupled hardware configuration. Its objectives include allowing communication between devices on the VMEbus without disturbing the internal activities of other devices on the VMEbus, allowing a broad range of design latitude so that the designer can optimize cost and/or performance without affecting system compatibility, and providing a system where performance is primarily device-limited rather than system-interface-limited.

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