Method and apparatus for meeting compliance for debugging...

Details Method and apparatus for meeting compliance for debugging... Method and apparatus for meeting compliance for debugging...

2005-11-18

2009-12-15

Duong, Frank (Department: 2416)

Multiplex communications

Diagnostic testing

Reexamination Certificate

active

07633877

ABSTRACT:
A method and apparatus for meeting compliance for debugging and testing a multi-speed, point-to-point link. In one embodiment, the method includes the selection of a compliance speed for a point-to-point link from at least two link frequencies supported by the point-to-point link. Once the compliance speed is selected for the point-to-point link, the point-to-point link is caused to enter a compliance testing mode. During compliance testing mode, a controller of the point-to-point link sets a compliance speed of the point-to-point link to the selected compliance speed. Once a compliance speed is set, a transmitter of the point-to-point link transmits a compliance pattern at the selected compliance speed. In one embodiment, the transmission of the compliance pattern at the selected compliance speed is used to generate a worst case eye diagram to determine compliance of the point-to-point link to a link specification. Other embodiments are described and claimed.

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PCI-SIG, PCI Express™ Base Specification Revision 1.0a, 426 pages, Apr. 2003.
Nejedlo, IBIST (Interconnected Built-in-Self-Test) Architecture and Methodology for PCI Express, IEEE, 9 pages, 2003.

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