CASCADE_HEIGHT Example (VHDL) - 2022.1 English

Vivado Design Suite User Guide: Synthesis (UG901)

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2022.1 English

attribute cascade_height : integer;

attribute cascade_height of my_ram signal is 16;

In addition to the attributes that only affect the specific RAMs on which they are put, there is also a global setting which affects all RAMs in the design.

The Synthesis Settings menu has the -max_uram_cascade_height setting. The default value is -1 which means that the Vivado synthesis tool determines the best course of action, but this can be overridden by other values. In case of a conflict between the global setting and a CASCADE_HEIGHT attribute, the attribute is used for that specific RAM.