Fujitsu FR81S User Manual
CHAPTER 6: CLOCK RESET STATE TRANSITIONS
2. Device States and Transitions
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : CLOCK RESET STATE TRANSITIONS
FUJITSU SEMICONDUCTOR CONFIDENTIAL
9
2.3. Priority of State Transition Requests
Priority of state transition requests is shown.
The state transition requests are prioritized in the following order in any states. However, since some
requests are generated only in the specific states, they are enabled only in those states.
[Highest priority]
Initialization (SINIT) request
↓
Setting initialization (INIT) request
↓
The end of the oscillation stabilization wait time
(generates an oscillation stabilization wait reset state and an oscillation
stabilization wait RUN state only.)
↓
Program reset (RST) request
↓
Effective interrupt request (generates RUN, sleep, stop, watch mode states only)
↓
Stop mode request (register write) (generates RUN state only)
↓
Watch mode request (register write) (generates RUN state only)
[ Lowest priority]
Sleep mode request (register write) (generates RUN state only)
MB91520 Series
MN705-00010-1v0-E
252