Eye diagram determination during system operation

Details Eye diagram determination during system operation Eye diagram determination during system operation

2005-10-04

2010-10-26

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Testing

C375S226000, C375S227000

Reexamination Certificate

active

07822110

ABSTRACT:
A system for testing a communications link. A system includes a transmitter, a receiver, a digital communications link, and a service processor. The digital communications link includes a plurality of lanes through which the transmitter is coupled to the receiver. During an operating mode of the digital communications link and during otherwise normal system operation, the service processor (a) switches a selected one of the plurality of lanes from the operating mode to a test mode, (b) performs an eye scan of the selected lane, (c) stores data corresponding to the eye scan of the selected lane, and (d) returns the selected lane to the operating mode.

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