34.14.2 Switching from (to) Slow Clock Mode to (from) Normal Mode
When switching from Slow clock mode to Normal mode, the current Slow clock mode transfer is completed at a high clock rate, with the set of Slow clock mode parameters (see Figure 34-33). The external device may not be fast enough to support such timings.
Figure 34-34 illustrates the recommended procedure to switch from one mode to the other.