Cyclone V HS serial interface

Hi,

To implement XAUI, you will need 4+1 channels which will occupy one transceiver bank. To implement 4 Custom PHY, you will need another 4+1 channels which mean another transceiver bank. Thus, you would need 12 transceivers device.

Not sure if the Cyclone V can use fPLL for these Custom PHY. You can double check in the documentation. If yes, probably you can fit into 9 channels device.