Check if the DUT contains obsolete Unit Delay Enabled/Resettable blocks
This check displays a warning if the DUT Subsystem contains any of these blocks:
Unit Delay Enabled
Unit Delay Resettable
Unit Delay Enabled Resettable
These blocks have been obsoleted. The code generator does not recommend usage of these blocks in your Simulink® model.
To fix this warning, click Modify Settings and the code generator replaces these blocks with the corresponding synchronous counterparts:
These blocks are recommended because they use the State Control block for synchronous simulation behavior and generate hardware-friendly HDL code. For more information, see Synchronous Subsystem Behavior with the State Control Block.