AR# 67125

UltraScale RLDRAM3 - spec violation allowed for Read Latency (RL) of 15 and -107 speed bin


Version Found:RLDRAM3 v1.2

Version Resolved: See (Xilinx Answer 69037)

When using the UltraScale RLDRAM3 IP v2.0 and older versions, the IP allowed tCK frequencies greater than 1.25ns for a RLDRAM3 speed bin of -107 and for Read Latency (RL) of 15. 

This is a spec violation as tCK is only allowed for 1.07ns to 1.25ns for this speed bin and RL value. 

Below is the RLDRAM3 speed bin table for reference:



This is a spec violation of the min/max tCK frequency as defined in the RLDRAM3 data sheet, and existing IP that violate this should be regenerated with a correct tCK frequency.

This issue will be fixed in a future release of the RLDRAM3 IP.

Revision History:

04/28/2016 - 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# 67125
日期 01/11/2018
状态 Active
Type 已知问题