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Narrow down by specifying conditions
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What are the conditions for CDR (Clock Data Recovery) in the transceiver block to become LTD (Lock to Data)?
To become an LTD, the relationship between the clock recovered by the CDR and the reference clock must be
- when the threshold level of the signal is met
- When the phase is within 0.08UI
- When the PPM is within the PPM set in the MegaWizard Plug-In Manager
conditions must be met.
LTR (Lock to Reference) occurs when these conditions are not met.
(When in Automatic Lock Mode)
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