Type: Answers, Errata

Area: EMIF, Intellectual Property



External Memory Interfaces Targeting Some Stratix V Devices Do Not Function Correctly in Hardware

Description

This problem affects DDR2, DDR3, QDR II, RLDRAM II and RLDRAM 3 products.

External memory interfaces using pins in banks 7E or 8E of the following Stratix V devices will not function correctly in hardware:

5SGXBB

5SGXB9

5SGXAB

5SGXA9

5SEEB

5SEE9

The cause of this problem is that connections from levelling delay chains to I/O banks are swapped for banks 7E and 8E in the software model for the affected devices.

Workaround/Fix

The workaround for this issue is to install the latest patch for your version.

This issue will be fixed in a future version.