Device Family: Stratix® III

Device Family: Stratix® IV E

Device Family: Stratix® IV GT

Type: Answers

Area: EMIF

Area: Intellectual Property

IP Product: DDR3 SDRAM Controller supporting ALTMEMPHY

How should I connect mem_ac_parity, mem_err_out_n, and parity_error_n signals in Altmemphy based DDR3 SDRAM High Performance Controller if I do not wish to use the parity feature in DDR3 SDRAM RDIMM?


You can tie mem_err_out_n to “High” and leave mem_ac_parity and parity_error_n unconnected in Altmemphy based High Performanc Controller if you do not wish to use the parity feature provided that it is supported by the DDR3 SDRAM RDIMM.


Refer to your memory module datasheet to ensure that the parity feature is optional.