Figure 3-2 State Transitions
End of bus-released state
Bus request
Program execution
state
End of bus-
released state
Bus request
Bus-released state
End of exception handling
Request for exception handling
Interrupt request
Sleep mode
Exception-handling state
External interrupt
Software standby mode
RES high
Bus request
completion
Bus
request
Reset state
STBY high, RES low
Hardware standby mode
Power-down state
SLEEP instruction with SSBY = 1
SLEEP
instruction with
SSBY = 0
*
1
Notes: 1. From any state except hardware standby mode, a transition to the reset state occurs whenever
RES
goes low.
2. From any state, a transition to hardware standby mode occurs when
STBY
goes low.
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