Forum Discussion

TerryU's avatar
TerryU
Icon for New Contributor rankNew Contributor
7 years ago

Arria 10 Receiver-Transceiver PHY calibration

Hi experts, I use Arria 10 device and configure SAS (Serial Attached SCSI) interface. When I assembled many boards, and then around 10% boards failed with SAS link error. In my analysis on Signal T...
TerryU's avatar
TerryU
Icon for New Contributor rankNew Contributor
7 years ago

Hi Chee,

Thank you for your reply.

Indeed, recalibration would be necessary. And I have found another register "Rate Switch Flag Register", that manages charge-pump​ setting for CDR. I think, it might effect Rx-PLL also. I will do some further inquire and trial.

Thanks.

TerryU