AR# 50591

描述

Some DDR3 devices support self-refresh. 

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

解决方案

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.