Device Family: Intel® Arria® 10, Intel® Stratix® 10

Type: Answers

Area: EMIF


Last Modified: November 28, 2018
Version Found: v18.1
Version Fixed: v18.1 Update 1
Bug ID: FB: 1408426693;
IP: Arria 10 External Memory Interfaces, Stratix 10 External Memory Interfaces

Why doesn't the Intel® Arria® 10 and the Intel Stratix® 10 QDR-IV IP issue burst accesses? 

Description

Due to a problem in the Intel® Quartus® Prime software versions 18.1 and earlier, the Intel® Stratix® 10 and the Intel Arria® 10 QDR-IV IP can only support a burst length of one at the Avalon Memory-Mapped interface. This is to avoid the QDR-IV banking policy across Port A and Port B for better bus efficiency.

Workaround/Fix

This problem is planned to be fixed in a future version of the Intel® Quartus® Prime software.