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Evolving buses: backplane buses mature to keep pace with technology

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1 Author(s)
Voigt, R. ; Naval Postgraduate Sch., Monterey, CA, USA

Considers how the role and importance of the backplane bus in a system has evolved along with the advances in technology over the past decade. Backplane buses have come a long way from the early days of fairly simple protocols, a couple of connectors, and some traces on a printed circuit board. In early bus-based systems, the backplane bus was the main system bus providing interconnects from the CPU to memory, I/O, peripherals, and networking. The bus interface alone could easily take up a third of the board real estate on a small card. In today's systems, however, advances in technology and packaging art having a significant effect on what is expected of a backplane bus. Yesterday's backplane buses can no longer keep up with the demands of today's high-performance CPUs and their interconnection requirements. What we need is a new generation of buses to meet the expanded needs.<>

Published in:

Computer  (Volume:27 ,  Issue: 9 )