NEC PD78F9488 - Manual (Page 316)

CHAPTER 18 RESET FUNCTION
316
User’s Manual U15331EJ4V1UD
Figure 18-2. Reset Timing by RESET Input
X1
RESET
Internal
reset signal
Port pin
During normal
operation
Delay Delay
Hi-Z
Reset period
(oscillation stops) Normal operation
(reset processing)
Oscillation
stabilization
time wait
Figure 18-3. Reset Timing by Overflow in Watchdog Timer
X1
Overflow in
watchdog timer
Internal
reset signal
Port pin
Hi-Z
During normal
operation
Reset period
(oscillation
continues)
Normal operation
(reset processing)
Oscillation
stabilization
time wait
Figure 18-4. Reset Timing by RESET Input in STOP Mode
X1
RESET
Internal
reset signal
Port pin
Delay Delay
Hi-Z
STOP instruction execution
During normal
operation Reset period
(oscillation stops) Stop status
(oscillation stops) Normal operation
(reset processing)
Oscillation
stabilization
time wait