Device Family: Stratix® IV E, Stratix® IV GT, Stratix® IV GX

Type: Answers

Area: EMIF, Intellectual Property


IP Product: QDRII SRAM Controller

Why is Synchronizer Identification assignment for UniPHY based QDRII controller ignored by fitter?

Description

You may encounter the following report at the Ignored Assignments section in the Fitter report when you build QDRII controller with UniPHY in your design.

Name: Synchronizer Identification
Ignored Entity: qdrii_ctl_read_datapath
Ignored Value: FORCED_IF_ASYNCHRONOUS
Ignored Source: Compiler or HDL Assignment

This is reported because HDL Assginment was ignored during Synthesis.
You should enable Timing-Driven Synthesis in the Analysis & Synthesis Settings to remove this report.