mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 112

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

Chapter 2 Clocks and Reset Generator (S12CRGV6)
112
Oscillator Clock
.
Oscillator Clock
PLL Clock
Core Clock
PLL Clock
Core Clock
Instruction
Instruction
FSTWKP=1
FSTWKP=1
SCME=1
SCME=1
STOP
Figure 2-23. Fast Wake-up from Full Stop Mode: Example 1
Figure 2-24. Fast Wake-up from Full Stop Mode: Example 2
STOP
CPU resumes program execution immediately
Oscillator Disabled
IRQ Interrupt
IRQ Service
Interrupt
MC9S12XDP512 Data Sheet, Rev. 2.17
CPU resumes program execution immediately
IRQ Service
Oscillator Disabled
FSTWKP=0
Power Saving
OSC Startup
STOP
Self-Clock Mode
SCMIE=1
Self-Clock Mode
Interrupt
Clock Quality Check
IRQ Service
Freq. Uncritical
Instructions
STOP
Freescale Semiconductor
SCM Interrupt
Interrupt
Freq. Critical
Instr. Possible
IRQ Service