If you use the incremental implementation flow without enabling automatic incremental implementation mode, the reuse level triggers one of the following reuse modes:
- High Reuse Mode
- High reuse mode is enabled when cell reuse is equal to or greater than 75%. This mode triggers incremental algorithms to be run and is the standard mode for incremental implementation.
- Low Reuse Mode
- Low reuse mode is enabled when cell reuse is less than 75%. This mode reuses the cell placement of certain cells but runs the default algorithms. This mode can be effective when targeting block placement of DSPs, BRAMs, or a hierarchical cell.