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A High-speed Optical Multidrop Bus for Computer Interconnections Signal Integrity Constraints of High-speed Electronics Have Made Multidrop
| Content Provider | Semantic Scholar |
|---|---|
| Author | Tan, Michael R. T. Rosenberg, Paul Yeo, Jong-Souk McLaren, Moray Mathai, Sagi Morris, Terry Kuo, Huei Pei Straznicky, Joseph Jouppi, Norman P. Wang, Shih-Yuan |
| Copyright Year | 2009 |
| Abstract | ......Multidrop buses find many applications in computer systems, particularly in the I/O and memory systems. They let architects create readily expandable systems with uniform access times for all devices. A good example is expanding a computer’s main memory by adding more memory modules. For applications such as front-side buses, the ability to broadcast simplifies the design of coherency protocols. Increasingly, however, networks of point-topoint links are displacing buses—as seen, for example, in the migration of PCI to PCI Express—driven primarily by signal integrity considerations. The impedance discontinuities inherent in multidrop electrical buses have made it impossible to scale their data rates to track improvements in processor performance. To keep system design and provisioning flexible, we’d like a high-speed alternative to traditional electrical buses. We can easily avoid the difficulty of creating a multidrop bus electrically by using optics. Optics provides numerous benefits over copper: |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.hpl.hp.com/discover2012/pdf/IEEE-Micro-7-09.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
