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CHAPTER 24 STANDBY FUNCTION
User’s Manual U12697EJ3V0UM
Figure 24-1. Standby Function State Transition
Wait for
stable
oscillation
Normal
operation
(Main system
clock
operation)
Macro
service
HALT
(Standby)
IDLE
(Standby)
Low power
consumption
mode
(Subsystem
clock operation)
Low
power
consumption
HALT mode
(Standby)
Low
power
consumption
IDLE mode
(Standby)
STOP
(Standby)
Macro service request
One-time processing ends
Macro service ends
Macro service request
One-time processing ends
Interrupt request
Note 1
RESET input
HALT set
IDLE set
RESET input
RESET input
STOP set
RESET input
Oscillation stabilization time ends
NMI, INTP0 to INTP5 input,
INTWT
Note 2
Low power consumption
IDLE mode set
RESET input
Low power
consumption mode set
Return to normal operation
Low power consumption HALT mode set
RESET input
Interrupt request
Note 1
Interrupt
request for
masked interrupt
Interrupt
request for
masked interrupt
Interrupt
request for
masked
interrupt
Interrupt
request
for
masked
interrupt
Interrupt
request
for
masked
interrupt
Macro
service
Macro service request
Macro service request
One-time processing ends
Macro service ends
One-time processing ends
NMI, INTP0 to INTP5 input,
INTWT
Note 2
NMI, INTP0 to INTP5 input,
INTWT
Note 2
Notes 1
. Only unmasked interrupt requests
2.
When INTP0 to INTP5 and watch timer interrupt (INTWT) are not masked
Remark
NMI is only valid with external input. The watchdog timer cannot be used for the release of Standby (HALT
mode/STOP mode/IDLE mode.)