mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 108

• Manufacturer Part Number: mc9s12xd256
• Description: Hcs12x Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 2 Clocks and Reset Generator (S12CRGV6)
108
Exit Stop w.
CMRESET
No
Stop Mode
SCME=1
Enter
SCM
Exit
?
Yes
Exit Stop w.
ext.RESET
No
No
Figure 2-22. Stop Mode Entry/Exit Sequence
FSTWKP=1
Stop Mode
No
SCME=1 &
MC9S12XDP512 Data Sheet, Rev. 2.17
due to external reset
Clock
Exit
INT
OK
?
?
?
Stop Mode left
Yes
Yes
Enter SCM
Stop Mode
SCMIF not
Yes
Exit
set!
No
(Wakeup from Stop)
SCM Interrupt
Clear PLLSEL,
Generate
Disable PLL
Continue w.
Stop Mode.
Stop Mode
normal OP
Core req’s
Exit Stop w.
CMRESET
PSTP=1
Enter
?
Yes
no
SCMIE=1
Stop Mode
SCME=1
CME=1
CM fail
Enter
SCM
Exit
?
?
?
?
Yes
Yes
Yes
Yes
No
No
No
Freescale Semiconductor
Stop Mode
SCM=1
Enter
SCM
INT
Exit
?
?
Yes
Yes
No
No