MC68HC705JD FREESCALE [Freescale Semiconductor, Inc], MC68HC705JD Datasheet - Page 28

• Manufacturer Part Number: MC68HC705JD
• Description: member of the low-cost
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

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4-6
Figure 4-2
shows the sequence of events caused by the STOP instruction.
Freescale Semiconductor, Inc.
Figure 4-2. STOP Instruction Flowchart
For More Information On This Product,
NO
CENTRAL PROCESSOR UNIT
Go to: www.freescale.com
YES
INTERRUPT
EXTERNAL
?
(1) FETCH RESET VECTOR or
(2) SERVICE INTERRUPT.
CLEAR TIMER INTERRUPT FLAGS AND
NO
a. SAVE CPU REGISTERS ON STACK.
b. SET CCR INTERRUPT MASK.
c. VECTOR TO INTERRUPT
TIMER INTERRUPT ENABLE BITS.
CLEAR CCR INTERRUPT MASK.
SERVICE ROUTINE.
CLEAR TIMER PRESCALER.
TURN ON OSCILLATOR.
DELAY 4064 CYCLES
STOP OSCILLATOR.
TO STABILIZE.
YES
RESET
STOP
?
Rev. 2