NEC mPD784225 Series User Manual page 465

consumption
HALT mode
(Standby)
Interrupt
request for
masked interrupt
Interrupt
request for
masked
STOP
interrupt
(Standby) (Standby)
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.)
CHAPTER 24 STANDBY FUNCTION
Figure 24-1. Standby Function State Transition
Macro
service
Low
Low power consumption HALT mode set
power
Note 1
Interrupt request
Normal
operation
(Main system
clock
operation)
Interrupt
request
IDLE
for
masked
interrupt
Wait for
stable
oscillation
User's Manual U12697EJ3V0UM
Low power consumption
IDLE mode set
Low power
consumption
mode
(Subsystem
clock operation)
Macro service request
One-time processing ends
Macro service ends
Interrupt
request
HALT
for
(Standby)
masked
interrupt
Low
power
consumption
IDLE mode
(Standby)
Interrupt
request for
masked interrupt
Macro
service
465