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New PCIe architecture extends 'outside the box'

Posted: 13 Feb 2007 ?? ?Print Version ?Bookmark and Share

Keywords:PCIe? PCI-SIG? cabling specification? PCIe interconnect architecture? interconnect?

PCI-SIG has released the PCIe external cabling 1.0 specification, which extends the PCIe interconnect architecture 'outside the box.' The specification extends the application of the PCIe architecture to platform topologies, allowing developers to leverage the existing and broad PCIe ecosystem.

Under the specification, standard cables and connectors have been defined for x1, x4, x8 and x16 link widths. The new specification also provides the guidelines for practical cable length, but does not currently set a maximum cable distance. Sideband signaling is provided via the cable to attain compatibility with existing silicon and software.

"This specification helps the industry create new products that will take PCIe technology out of the boxenabling PCIe solutions for I/O expansion drawers, external graphics processors, tethered mobile docking, communications equipment and embedded applications," said Al Yanes, PCI-SIG chairman and president. "This is a great opportunity for OEMs to take products to new levels with PCIe technology."

Conforming to the PCIe 1.1 base and electromechanical guidelines, the PCIe external cabling 1.0 specification currently supports signaling rates of 2.5GTps. PCI-SIG is advancing the technology to achieve 5GTps signaling rates in the future.

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