If block RAMs are found to be cascaded, because only one block RAM can be
active at any time, the rest of the block RAMs can be disabled based on address and
any existing enable conditions. This enables large power savings. These
optimizations are performed by default in the opt_design phase in the AMD Vivado™ Design Suite.
Versal block RAM Power Optimization only
includes two types of optimizations:
- Write Mode Optimization
- Change the WRITE_MODE to NO_CHANGE if the output is not consumed on the following clock cycle.
- Structural Optimization
- Swap the EN and WE on write-only ports to reduce enable time.