mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 105

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

Freescale Semiconductor
Clear PLLSEL,
Wait Mode.
CPU Req’s
Disable PLL
PLLWAI=1
?
Yes
No
due to external reset
Figure 2-21. Wait Mode Entry/Exit Sequence
Wait Mode left
MC9S12XDP512 Data Sheet, Rev. 2.17
(Wakeup from Wait)
Exit Wait w.
Exit Wait w.
SCM Interrupt
ext.RESET
CMRESET
Wait Mode
Enter
Generate
No
Continue w.
Wait Mode
Normal OP
SCMIE=1
SCME=1
CM Fail
CME=1
Enter
SCM
Exit
?
?
?
?
Chapter 2 Clocks and Reset Generator (S12CRGV6)
Yes
Yes
Yes
Yes
No
No
No
Wait Mode
SCM=1
Enter
SCM
INT
Exit
?
?
No
Yes
Yes
No
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