Method and system for synchronizing bit streams for PCI...

Details Method and system for synchronizing bit streams for PCI... Method and system for synchronizing bit streams for PCI...

2007-06-12

2007-06-12

Nguyen, Linh (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from particular bit symbol

C341S100000, C341S101000

Reexamination Certificate

active

11222592

ABSTRACT:
A PCI Express device is provided. The PCI Express device includes a symbol lock module that includes a state machine for detecting a special character in a serial bit stream received from a serial/de-serializer, wherein the state machine receives a first special character and verifies alignment of the special character by comparing with a previously stored alignment value and the state machine declares a symbol lock if at least more than one special character alignment matches with a same stored alignment value. The special character is a comma sequence. After a symbol lock is declared, the state machine continues to monitor incoming bit stream data and compares each new special character alignment with the previously stored alignment value. During the monitoring if a misaligned special character is detected, then the state machine waits to receive another special character before declaring a loss of synchronization.

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