IEC 60822:1988 

VSB - Parallel Sub-system Bus of the IEC 60821 VMEbus


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The VSB bus was designed to meet the needs of multiprocessor systems based on high-performance 32-bit microprocessors built up from board assemblies. lt includes a high-speed asynchronous data transfer bus allowing masters to direct the transfer of binary data to and from slaves according to 4 kinds of cycles: address-only, single-transfer, block-transfer and interrupt-acknowledge cycles. It also includes an arbitration bus enabling arbiter modules and/or requester modules to coordinate the use of the data-transfer bus according to two arbitration methods (series or parallel). Note: -For the price of this publication, please consult the ISO/IEC price-code list.

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Additional information

Publication typeInternational Standard
Publication date1988-12-30
Available language(s)English/French
TC/SCISO/IEC JTC 1/SC 25 - Interconnection of information technology equipmentrss
ICS31.080.01 - Semiconductor devices in general
35.200 - Interface and interconnection equipment
35.160 - Microprocessor systems
File size11403 KB

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