You may encounter the following fitter error when compiling a 16-bit DDR3 hard memory controller design in a Cyclone® V A5 device with the Quartus II software version 13.1:
Error (11802): Can't fit design in device
Info (169186): Following groups of pins have the same dynamic on-chip termination control
Info (169185): Following pins have the same dynamic on-chip termination control: <hierarchy>|altdq_dqs2_acv_connect_to_hard_phy_cyclonev:altdq_dqs2_inst|delayed_oct
Info (169066): Type bi-directional pin mem_dq uses the SSTL-15 Class I I/O standard
Please contact Altera mySupport if you need a patch for the Quartus II software version 13.1.
This problem will be fixed in a future version of the Quartus® II software.