CHAPTER 15 RESET FUNCTION
Preliminary User’s Manual U19014EJ1V0UD
423
Figure 15-2. Timing of Reset by RESET Input
Delay
Delay
(5 s (TYP.))
Hi-Z
Normal operation
CPU clock
Reset period
(oscillation stop)
Normal operation
(internal high-speed oscillation clock)
RESET
Internal reset signal
Port pin
High-speed system clock
(when X1 oscillation is selected)
Internal high-speed
oscillation clock
Wait for oscillation
accuracy
stabilization
Starting X1 oscillation is specified by software.
Reset
processing
(20 s (TYP.))
µ
µ
Figure 15-3. Timing of Reset Due to Watchdog Timer Overflow
Normal operation
Reset period
(oscillation stop)
CPU clock
Watchdog timer
overflow
Internal reset signal
Hi-Z
Port pin
High-speed system clock
(when X1 oscillation is selected)
Internal high-speed
oscillation clock
Starting X1 oscillation is specified by software.
Normal operation
(internal high-speed oscillation clock)
Reset
processing
(20 s (TYP.))
Wait for oscillation
accuracy
stabilization
µ
Caution A watchdog timer internal reset resets the watchdog timer.
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