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AR# 50591

14.1 - EDK - Is Self refresh mode supported on the axi_7series_ddrx memory controller?

Description

Some DDR3 devices support self-refresh. 

Does the axi_7series_ddrx memory controller support this self-refresh mode?

Solution

The axi_7series_ddrx design does not support self-refresh. 

Self-refresh is a low power mode of the DRAM.  

It is separate from the controller automatically sending the refresh every 7.8 us (i.e. auto-refresh) or the user manually requesting the refresh. 

Self-refresh requires specific support from the axi_7series_ddrx memory controller which does not exist in XPS 14.1.

AR# 50591
Date Created 06/27/2012
Last Updated 09/17/2014
Status Active
Type General Article
Devices
  • Zynq-7000
Tools
  • EDK - 14.1