Can I use the Internal Oscillator setting of the Configuration Clock Source field for transceiver calibration on Intel® Arria® 10 and Intel Cyclone® 10 GX devices?

Description

No, you should not use the Internal Oscillator setting of the Configuration Clock Source field for transceiver calibration on Intel Arria 10 and Intel Cyclone 10 GX devices.

Resolution

For accurate calibration of Intel Arria 10 transceivers you should use the CLK_USR pin setting in the Configuration Clock Source field. You must also have the appropriate clock connected to the CLK_USR pin of the device on your PCB.