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SerialExpress-A High-Performance Workstation Interconnect
May/June 1998 (vol. 18 no. 3)
pp. 54-65
SerialExpress refers to the draft standard developed by the IEEE P2100 working group. This article focuses on the technical aspects of the draft; future articles will address SerialExpress implementation technologies and applciations. SerialExpress provides buslike services (as defined in IEEE 1212-1991) but uses longer distance point-to-point links. Concepts developed in IEEE 1394-1995 Serial bus and IEEE 1596-1992 Scalable Coherent Interface (SCI) are leveraged and extended. The objective of this working group is to develop a low-cost, technology-independcent, high-bandwidth, low-latency, distance-insensitive scalable protocol for system areas network (SAN) applications. Within this environment, buslike read and write transactions provide an efficient mechanism for transferring data and control information between processor and I/O nodes. The bandwidth, distance, and latency objectives mandated the concurrent transmission of small (64 data-byte packets and avoiding the arbitration delay constraints of a broadcast bus protocol. This solution scales over a wide range of technologies.
Index Terms:
SerialExpress, IEEE P3100 standard, buses, point-to-point links, I/O
Citation:
David V. James, David B. Gustavson, Balint Fleischer, "SerialExpress-A High-Performance Workstation Interconnect," IEEE Micro, vol. 18, no. 3, pp. 54-65, May-June 1998, doi:10.1109/40.683105
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