mc68hc05j1avp Freescale Semiconductor, Inc, mc68hc05j1avp Datasheet - Page 58

• Manufacturer Part Number: mc68hc05j1avp
• Description: M68hc05 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Low-Power Modes
Technical Data
58
CLEAR TOF, RTIF, TOIE, AND RTIE BITS IN TSCR
TURN OFF INTERNAL OSCILLATOR
SET IRQE BIT IN ISCR
CLEAR I BIT IN CCR
INTERRUPT?
DISABLED?
EXTERNAL
EXTERNAL
RESET?
STOP
STOP
NO
NO
NO
TURN ON INTERNAL OSCILLATOR
START STABILIZATION DELAY
Freescale Semiconductor, Inc.
YES
YES
YES
Figure 6-1. Stop/Wait/Halt Flowchart
For More Information On This Product,
STABILIZATION
END OF
DELAY?
1. LOAD PC WITH RESET VECTOR
2. SERVICE INTERRUPT
NO
a. SAVE CPU REGISTERS ON STACK
b. SET I BIT IN CCR
c. LOAD PC WITH INTERRUPT VECTOR
Go to: www.freescale.com
TURN ON CPU CLOCK
Low-Power Modes
YES
OR
YES
YES
YES
YES
TURN OFF CPU CLOCK
TIMER CLOCK ACTIVE
SET IRQE BIT IN ISCR
CLEAR I BIT IN CCR
INTERRUPT?
INTERRUPT?
EXTERNAL
EXTERNAL
RESET?
RESET?
TIMER
HALT
COP
NO
NO
NO
NO
YES
YES
YES
YES
MC68HC05J1A — Rev. 3.0
TURN OFF CPU CLOCK
TIMER CLOCK ACTIVE
SET IRQE BIT IN ISCR
CLEAR I BIT IN CCR
INTERRUPT?
INTERRUPT?
EXTERNAL
EXTERNAL
RESET?
RESET?
TIMER
WAIT
COP
NO
NO
NO
NO
MOTOROLA