Важное, рабочее

IMPORTANT: The bitstream RSA authentication feature uses certain block RAMs to hold interim rolling keys. For a given block RAM column, each 36K block RAM block in the bottom of a clock region is affected. The first 36K block RAM starting at the bottom of a device is used and then every twelfth 36K block RAM after that in a column is used (BRAM36_X*Y0, BRAM36_X*Y12, BRAM36_X*Y24, etc.) These block RAMs cannot be initialized to user defined values. The block RAMs are always initialized to 0 after configuration.

Теперь, чай, не забалуешь.