![NEC V850/SC1 User Manual Download Page 487](http://html.mh-extra.com/html/nec/v850-sc1/v850-sc1_user-manual_248178487.webp)
CHAPTER 14 RESET FUNCTION
User’s Manual U15109EJ3V0UD
485
Figure 14-3. System Reset Timing by Power-on-Clear
(a) At power application
Reset period
(oscillation stopped)
Oscillation
stabilization
time wait
Normal operation
(reset processing)
Power-on-clear voltage (3.5 V)
Hi-Z
V
DD
3.5 V
X1
I/O port pin
Internal
reset signal
(b) In STOP mode
Normal
operation
Normal operation
(reset processing)
Stop status
(oscillation stopped)
Reset period
(oscillation
stopped)
Oscillation
stabilization
time wait
Power-on-clear voltage (2.2 V)
STOP instruction execution
Hi-Z
Hi-Z
3.5 V
2.2 V
X1
I/O port pin
Internal
reset signal
V
DD
(c) In normal operating mode (including HALT mode)
Normal
operation
Normal operation
(reset processing)
Reset period
(oscillation
stopped)
Oscillation
stabilization
time wait
Power-on-clear voltage (3.5 V)
Hi-Z
Hi-Z
X1
I/O port pin
Internal
reset signal
V
DD
3.5 V