Device Family: Intel® MAX® 10

Type: Answers

Area: EMIF, Intellectual Property

IP Product: DDR3 SDRAM Controller MegaCore supporting UniPHY

Error (165011): altmemphy pin placement was unsuccessful


When you implement the DDR3 SDRAM Controller with UniPHY in a MAX® 10 device and add pin location assignments to the DQSn pins in the QSF file, you may get following fitter error.

Error (165011): altmemphy pin placement was unsuccessful

Error (13130): The assigned location PIN <pin_number> for DQSn pin mem_dqs_n[*] is not a legal location

As DQSn is a pseudo differential pin of DQS, a pin location assignment for DQSn is not needed. The pin location  assignment on the DQS pin is sufficient.


To work around this error, remove the pin location assignment for the DQSn pins in the Assignment Editor or the QSF file.