FUJITSU MB91460 SERIES FR60 - Manual (Page 150)

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Chapter 8 Device State Transition
3.State Transition Diagram
3. State Transition Diagram
This section describes state transition.
Figure 3-1 State Transition of MB91460 Series
Oscillation-
stabilization-
wait reset
Power-on
Setting initialization
(INIT)
Program reset
(RST)
Main RUN Main sleep
Oscillation-
stabilization-wait RUN
Main stop
Sub-RUN
Sub-sleep
Oscillation-
stabilization-wait RUN
Program reset
(RST)
Sub-stop *
1
2
3
4
4
5
5
6
7
13
7
8
8
9
9
3
3
10
11
1
1
1
1
1
1
1
1
1
1
1
Main clock mode
Subclock mode
1 INIT pin = 0 (INIT)
2 INIT pin = 1 (Cancel of INIT)
3 Termination of oscillation-stabilization wait
4 Cancel of reset (RST)
5 Software reset (RST)
6 Sleep (Writing instruction)
7 Stop (Writing instruction)
8 Interrupt
9 External interrupt requiring no clock
10 Switching from main to sub (Writing instruction)
11 Switching from sub to main (Writing instruction)
12 Watchdog reset (INIT)
13 Sub-sleep (Writing instruction)
Priority of transition request Highest
priority Setting-initialization reset (INIT)
Termination of oscillation-stabilization wait
Operation-initialization reset (RST)
Interrupt request
Stop
Lowest
priority
Sleep
12
12
* To switch clock source between main and sub, in the RUN status where switched clock is stable,
switch clock source register (CLKR) between bit 1 and 0 (CLKS1 and CLKS0 bit).
MB91460 does not stop
oscillation while waiting
time is generated.