Fujitsu F2MC-16LX Hardware Manual page 146

CHAPTER 6 LOW-POWER CONSUMPTION MODE
❍ Stop mode
The stop mode stops source oscillation, and all functions are stopped.
Note:
In the stop mode, the oscillation clock stops and data can be retained with the lowest
consumption of power.
When the clock mode is switched, do not switch to low power consumption mode and other
clock mode before this switching is completed. Confirm the completion of clock mode
switching by referring to the MCM and SCM bits of the clock selection register (CKSCR). If
the mode is switched to another clock mode or low-power-consumption mode before
completion of switching, the mode may not be switched.
130