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MIT_R_D's avatar
MIT_R_D
Icon for Occasional Contributor rankOccasional Contributor
4 years ago

Arria 10: Native Phy CDR in Manual Mode LTD

Transceiver Mode: RX Simplex CDR: Manual Mode LTD Data Rate 10000 Mbps In this above setting, if RX receive two different data rate which we can use same reference CDR clock, whether Rx can de...
Deshi_Intel's avatar
Deshi_Intel
Icon for Regular Contributor rankRegular Contributor
4 years ago

Hi,


You can use same CDR refclk frequency for different data rate if it's within supported range in NativePHY IP drop down selection.


However, one CDR setting is meant to lock to one data rate only.

  • For instance, your default setting is10G with certain CDR refclk frequency setting


If you plans to run the transceiver channel in 8G later then you need to re-configure the NativePHY IP with 8G IP setting


You can't send 8G data transfer to NativePHY IP with 10G setting.


Recommended approach is you should have 2 reconfigure profile in NativePHY IP

  • one 10G profile and another 8G profie
  • You can switch the profile via reconfiguration process in real runtime depends on your system is sending 10G or 8G data


Thanks.


Regards,

dlim