The user may change any of the configuration parameters by writing the SMC user interface.
When detecting that a new user configuration has been written in the user interface, the SMC inserts a wait state before starting the next access. This “reload user configuration wait state” is used by the SMC to load the new set of parameters to apply to next accesses.
The reload configuration wait state is not applied in addition to the chip select wait state. If accesses before and after re-programming the user interface are made to different devices (chip selects), then one single chip select wait state is applied.
On the other hand, if accesses before and after writing the user interface are made to the same device, a reload configuration wait state is inserted, even if the change does not concern the current chip select.