mc68hc705v12 Freescale Semiconductor, Inc, mc68hc705v12 Datasheet - Page 78

• Manufacturer Part Number: mc68hc705v12
• Description: M68hc05-based Mcu Hc05 Freescale Semiconductor
• Manufacturer: Freescale Semiconductor, Inc

Low-Power Modes
Advance Information
STOP INTERNAL TIMER CLOCK,
STOP EXTERNAL OSCILLATOR,
STOP INTERNAL PROCESSOR
AND RESET STARTUP DELAY
CLEAR I BIT IN CCR
PORT C FALLING
INTERRRUPT?
RXP RISING
ENABLED?
EXTERNAL
EXTERNAL
N
N
CLOCK,
RESET?
EDGE?
EDGE?
STOP
STOP
Y
IRQ
N
N
Y
Y
Y
Y
N
Freescale Semiconductor, Inc.
RESTART EXTERNAL OSCILLATOR
For More Information On This Product,
Figure 6-2. Stop/Wait Flowcharts
AND STABILIZATION DELAY
OF STARTUP
N
Go to: www.freescale.com
DELAY
END
1.
2.
Low-Power Modes
INTERNAL PROCESSOR CLOCK
FETCH RESET VECTOR
OR
SERVICE INTERRUPT
A. STACK
B. SET I BIT
C. VECTOR TO INTERRUPT ROUTINE
Y
RESTART
RESET CHIP
EXTERNAL OSCILLATOR ACTIVE
STOP INTERNAL PROCESSOR
Y
Y
Y
MC68HC705V12
Y
Y
Y
Y
TIMER CLOCK ACTIVE
CLEAR I BIT IN CCR
AND INTERNAL
INTERRUPT?
INTERRUPT?
INTERRUPT?
SEQUENCE
INTERRUPT?
RXP RISING
EXTERNAL
EXTERNAL
FALLING
INTERNAL
PORT C
CLOCK,
EDGE?
GAUGE
RESET?
EDGE?
WAIT
TIMER
SPI
IRQ
N
N
N
N
N
N
N
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Rev. 3.0