CHAPTER 5 CLOCK GENERATORS
User’s Manual U18172EJ2V0UD
80
Figure 5-14. Status Transition of Low-Speed Internal Oscillator
LSRSTOP = 0
Cannot be stopped
Can be stopped
Clock source of
WDT is selected
by software
Note
Clock source of
WDT is fixed to f
RL
LSRSTOP = 1
V
DD
> 2.1 V
±
0.1 V
Reset signal
Power
application
Reset by
power-on clear
Low-speed internal
oscillator can be stopped
Low-speed internal
oscillator cannot be stopped
Low-speed internal
oscillator stops
Select by option byte
if low-speed internal oscillator
can be stopped or not
Note
The clock source of the watchdog timer (WDT) is selected from f
X
or f
RL
, or it may be stopped. For details,
refer to
CHAPTER 8 WATCHDOG TIMER
.