Stratix V Device Handbook: Volume 2: Transceivers

ID 683779
Date 11/23/2021
Public
Document Table of Contents

1.4.1.5. Descrambler

This function descrambles data per the protocol specifications supported by the 10G PCS. The descrambler operates either in frame synchronous or self synchronous mode.

Frame Synchronous Mode

Frame synchronous mode is used in Interlaken configurations only. When block synchronization is achieved, the descrambler uses the scrambler seed from the received scrambler state word. This block also forwards the current descrambler state to the frame synchronizer.

Self Synchronous Mode

Self synchronous mode is used in 10GBASE-R configurations only.

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