Honored Contributor
Honored ContributorIt would appear that the ONLY way to make use of the fractional PLL's built into the Arria V for the purposes of implementing a CMU PLL is to use the Native PHY mode available from the Mega Wizard.
Unfortunately, Quartus II 12.0(sp2) does not support the hard PCS logic built into the transcecivers but release 12.1 does support the Tx and Rx PCS logic which leaves us to reinvent the wheel and implement this set of logic within the fpga core. However, it remains to be seen if this mode supports bonded applications. I have not heard if release 13.0 will provide an option in the Custom PHY to make use of a fractional PLL to act as the CMU.... One other issue with the Native PHY is that the PHY management interface does not appear to be supported.
