mc68hc705j2 Freescale Semiconductor, Inc, mc68hc705j2 Datasheet - Page 44

• Manufacturer Part Number: mc68hc705j2
• Description: 8-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

MOTOROLA
4-24
Figure 4-2 shows the sequence of events caused by the STOP instruction.
Figure 4-2. STOP Instruction Flowchart
CENTRAL PROCESSOR UNIT
NO
INTERRUPT ?
YES
EXTERNAL
CLEAR TIMER INTERRUPT FLAGS
(1) FETCH RESET VECTOR or
(2) SERVICE INTERRUPT.
NO
TIMER INTERRUPT ENABLE BIT
CLEAR CCR INTERRUPT MASK
a. SAVE CPU REGISTERS ON S
b. SET CCR INTERRUPT MASK.
c. VECTOR TO INTERRUPT
CLEAR TIMER PRESCALER.
SERVICE ROUTINE.
TURN ON OSCILLATO
DELAY 4064 CYCLE
STOP OSCILLATOR.
TO STABILIZE.
YES
RESET ?
STOP
MC68HC705J2