AR# 65787

UltraScale RLDRAM3 - Calibration failures can occur when Data Mask (DM) is disabled


Version Found: RLDRAM3 v1.0

Version Resolved: See (Xilinx Answer 69037)

When data mask is disabled (DM_PORT=OFF) in the RLDRAM3 IP, DM calibration is not properly disabled.

Also, the mapping of I/O internal to the IP can be mapped incorrectly which can cause calibration failures.


This issue only occurs when data mask is disabled.

To fix the issue set the following parameter inside

parameter DM_PORT = "OFF"

When using the Out of Context flow for the RLDRAM3 IP or if you plan to regenerate the RLDRAM3 IP multiple times, a User IP Repository can be created by copying the RLDRAM3 IP install (i.e. C:\Xilinx\Vivado\2015.3\data\ip\xilinx\rld3_v1_0) and making edits to

For more details on using the User IP Repository flow, refer to (UG1119).;d=ug1119-vivado-creating-packaging-ip-tutorial.pdf

Revision History:

10/26/2015 - Initial Release



Answer Number 问答标题 问题版本 已解决问题的版本
69037 UltraScale/UltraScale+ RLDRAM3 - 发布说明与已知问题 N/A N/A
AR# 65787
日期 01/12/2018
状态 Active
Type 已知问题