Device Family: Intel® Stratix® 10

Intel Software: Quartus Prime Pro

Type: Answers

Area: Tools


Last Modified: December 13, 2016

Why does my RAM inference fail for Stratix 10 designs?

Description

In the Quartus® Prime Pro edition software, you may see that RAMs that were inferred as M20Ks in Stratix® V or Arria® 10 are not inferred in Stratix 10 for one of the following reasons:

  • Stratix 10 does not support True Dual Port (TDP) dual clock RAMs
  • Stratix 10 does not support mixed width TDP RAMs
  • Stratix 10 does not support "old data" mixed port read-during-write(RDW) behaviour for TDP RAMs
  • Stratix 10 only supports mixed width simple dual port (SDP) RAMs with ratios of 1:2 and 1:4 (1:8, 1:16 and 1:32 are not supported)