Fujitsu MB89140 Series Hardware Manual page 39

MAIN/SUBCLOCK
CONTROL BLOCK
Main STOP
Main stop
Sub oscillate
(8)
(3)
Oscillation stabilization
waiting of main clock
(1) (2)
Power-on
(1) When power-on reset option is selected
(2) When power-on reset option is not selected
(3) After oscillation stabilized
(4) Set STP bit to 1.
(5) Set SLP bit to 1.
(6) Set SCS bit to 0.
(7) External reset when power-on reset option not selected
(8) External reset or interrupt when power-on reset option se-
lected
(9) External reset or interrupt
(10) External reset when power-on reset option not selected
(11) External reset or other reset when power-on reset option
selected
(12) Set SCS bit to 1.
(13) After oscillation stabilized
(14) Set STP bit to 1.
(15) Set TMD bit to 1.
(16) Set SLP bit to 1.
(17) External reset after oscillation stabilized or when power-on
reset option not selected
(18) External reset or other reset when power-on reset option
selected
HARDWARE CONFIGURATION
(3) State transition diagram at low power consumption mode
Main SLEEP
Main oscillate
Sub oscillate
(9)
(7)
(5)
(4)
Main RUN
Main oscillate
Sub oscillate
(17)
Sub RUN
Oscillation stabilization
(18)
waiting of main clock
2-19
(27)
Sub SLEEP
Main stop
Sub oscillate
(28)
(29)
(16)
(15)
(6)
Sub RUN
Main stop
(14)
(10)
Sub oscillate
(11)
(12)
(19)
Oscillation stabilization
waiting of subclock
(20)
(19) External reset after oscillation is stabilized or when power-on
reset option not selected
(20) External reset when power-on reset option selected
(21) External reset when power-on reset
option not selected
(22) Interrupt
(23) External reset
when power-on reset
option selected
(24) External reset
when power-on reset
option selected
(25) External reset
when power-on reset
option not selected
(26) Interrupt
(27) External reset
when power-on reset
option selected
(28) External reset
when power-on reset
option not selected
(29) Interrupt
(24)
WATCH
Main stop
Sub oscillate
(25)
(26)
Sub STOP
Main stop
Sub stop
(23)
(21)
(22)
(13)