AR# 36141


Vivado - Can I ignore the noise failures reported by the SSN tool on MIG designs?


I have an FPGA design that fails the tool's Simultaneous Switching Noise analysis on banks that contain a Memory Interface Generator (MIG) core.

Should I be concerned about this?

Can I ignore these failures?


These failures can be safely ignored.

Address/Control pins and Data/Strobe pins will never switch at the same time, which Vivado SSN tool analysis does not take into consideration.

In addition, MIG designs have been extensively characterized to not have Simultaneously Switching Noise (SSN) issues.

Note: This does not mean that a custom design with the same pin-out might not have SSN issues.

This applies only to designs generated from MIG.



Answer Number 问答标题 问题版本 已解决问题的版本
31905 Simultaneously Switching Noise - Where can I find documentation on SSO/SSN? N/A N/A


Answer Number 问答标题 问题版本 已解决问题的版本
40868 MIG Spartan-6 MCB - Simultaneously Switching Noise (SSN) Calculation N/A N/A
AR# 36141
日期 07/30/2020
状态 Active
Type 综合文章
器件 More Less
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