mc9s12hz256v2 Freescale Semiconductor, Inc, mc9s12hz256v2 Datasheet - Page 195
mc9s12hz256v2
Manufacturer Part Number
mc9s12hz256v2
Description
Hcs12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S12HZ256V2.pdf
(692 pages)
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5.4.10.1
Wake-up from pseudo-stop is the same as wake-up from wait mode. There are also three different scenarios
for the CRG to restart the MCU from pseudo-stop mode:
Freescale Semiconductor
Exit Stop w.
•
•
•
CMRESET
External reset
Clock monitor fail
Wake-up interrupt
no
Wake-Up from Pseudo-Stop (PSTP=1)
Stop Mode
SCME=1
Enter
SCM
Exit
?
yes
Exit Stop w.
ext.RESET
no
no
Figure 5-24. Stop Mode Entry/Exit Sequence
Stop Mode
Clock
Exit
INT
OK
MC9S12HZ256 Data Sheet, Rev. 2.05
?
?
due to external
Wait Mode left
yes
yes
no
(Wakeup from Stop)
SCM Interrupt
Disable PLL
Generate
Continue w.
Stop Mode.
Exit Stop w.
Stop Mode
normal OP
CMRESET
Core req’s
PLLSEL,
PSTP=1
Enter
Clear
?
yes
no
Chapter 5 Clocks and Reset Generator (CRGV4)
Stop Mode
SCMIE=1
SCME=1
CME=1
CM fail
Enter
SCM
Exit
?
?
?
?
yes
yes
yes
yes
no
no
no
Stop Mode
SCM=1
Enter
SCM
Exit
INT
?
?
yes
yes
no
no
195
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