Hitachi H8/3032 Series Hardware Manual page 63

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Reset
Exception
Interrupt
sources
Trap instruction
Figure 2-12 Classification of Exception Sources
End of
exception
handling
Exception-handling state
RES = 1
*1
Reset state
Notes: 1. From any state except hardware standby mode, a transition to the reset state occurs
RES
whenever goes low.
2. From any state, a transition to hardware standby mode occurs when
Figure 2-13 State Transitions
External interrupts
Internal interrupts (from on-chip supporting modules)
Program execution state
SLEEP
instruction
with SSBY = 0
Exception
SLEEP instruction
Interrupt
with SSBY = 1
NMI, IRQ , IRQ ,
0 1
or IRQ interrupt
2
Software standby mode
STBY RES
= 1, = 0
Hardware standby mode
48
Sleep mode
*2
Power-down state
STBY
goes low.