Intel: Are there any precautions when using Manual Lock mode for CDR on the Receiver side?
Category: Transceiver
Tools: Quartus® Prime
Device: Cyclone® V
There are no specific indicators for signal quality, but it is necessary to clear the Eye Diagram Mask specified by IP.
After that, if you take care of the following conditions stipulated in the document, you should be fine.
Cyclone® V Device Datasheet
https://www.altera.com/en_US/pdfs/literature/hb/cyclone-v/cv_51002.pdf
(See Receiver Specifications for Cyclone V GX, GT, SX, and ST Devices.)
Generally, it is recommended to use Auto Lock mode.
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