S12XE Clocks and Reset Generator (S12XECRGV2)
MC9S12XHY-Family Reference Manual, Rev. 1.01
284
Freescale Semiconductor
Figure 7-19. Fast Wake-up from Full Stop Mode: Example 1
.
Figure 7-20. Fast Wake-up from Full Stop Mode: Example 2
7.5
Resets
All reset sources are listed in
Table 7-16
. Refer to MCU specification for related vector addresses and
priorities.
Table 7-16. Reset Summary
Reset Source
Local Enable
Power on Reset
None
Low Voltage Reset
None
External Reset
None
Illegal Address Reset
None
Clock Monitor Reset
PLLCTL (CME=1, SCME=0)
Oscillator Clock
PLL Clock
Core Clock
Instruction
STOP
IRQ service
FSTWKP=1
IRQ service
STOP
STOP
IRQ service
Oscillator Disabled
Power Saving
Self-Clock Mode
SCME=1
CPU resumes program execution immediately
Interrupt
Interrupt
Interrupt
Oscillator Clock
PLL Clock
Core Clock
Instruction
Clock Quality Check
STOP
IRQ Service
FSTWKP=1
IRQ Interrupt FSTWKP=0 SCMIE=1
Osc Startup
Oscillator Disabled
CPU resumes program execution immediately
Self-Clock Mode
SCME=1
Frequent Uncritical
Instructions
Frequent Critical
Instructions Possible
SCM Interrupt
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