Multiple Supply Voltages: implement it flat or hierarchical?Originally posted in cdnusers.org by wtan
- If the design is too large to implement flat, or if there are many legacy hierarchical blocks, it might be worthwhile implementing it in a hierarchical fashion
- If the design is not too large, and there aren't many legacy hierarchical blocks, flat is the better way to go, since the tool can then utilize inter-power domain knowledge (e.g. CTS, SI analysis, optimization etc)
Questions? Comments? Any other situation where you would implement your MSV design hierarchical/flat?