16.12.3.1 User Procedure

To insert a Reload Configuration Wait State, the SMC detects a write access to any HSMC_MODE register of the user interface. If only the timing registers are modified (HSMC_SETUP, HSMC_PULSE, HSMC_CYCLE registers) in the user interface, the user must validate the modification by writing the HSMC_MODE register, even if no change was made on the mode parameters.