ID:18199 ECC feature cannot be used for the specified combination of parameters(i.e ram block). ECC does not support mixed widths DCFIFO.

CAUSE: You specified the use of the ECC feature, but it cannot be used for the specified configuration.

ACTION: Modify the design and change the configuration, or disable the ECC feature. To use ECC feature, RAM_BLOCK_TYPE must be M20K. ECC does not support mixed width DCFIFO.