mm912f634 Freescale Semiconductor, Inc, mm912f634 Datasheet - Page 249

• Manufacturer Part Number: mm912f634
• Description: Mm912f634 - Integrated S12 Based Relay Driver With Lin
• Manufacturer: Freescale Semiconductor, Inc

Functional Description and Application Information
4.32.4.2
An example of what happens going into stop mode and exiting stop mode after an interrupt is shown in
4.32.4.3
An example of what happens going into stop mode and exiting stop mode after an interrupt is shown in
Freescale Semiconductor
UPOSC
LOCKST
DCO
Clock
IR
Clock
CPU
Core
Clock
DCO
Clock
Oscillator
Clock
IR
Clock
BCLKS
CPU
execution
execution
Stop Mode Using DCO Clock as a Bus Clock
Stop Mode Using Oscillator Clock as Bus Clock
Figure 75. Example of STOP Mode Using Oscillator Clock as a Bus Clock
Figure 74. Example of STOP Mode Using DCO Clock as Bus Clock
STOP instruction
STOP instruction
runs in STOP mode only
if enabled by e.g. RTI
runs in STOP mode only
if enabled by e.g. RTI
Wake-up
Wake-up
automatically cleared when going into stop mode
t
t
STP_REC
STP_REC
select Oscillator as Core/Bus Clock by writing bit to one
interrupt
interrupt
t
UPOSC
t
STAB
t
STAB
S12S Clocks and Reset Generator (S12SCRGV1)
continue execution
continue execution
Figure
Figure
74.
75.
MM912F634
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