mc68hc05x4dw Freescale Semiconductor, Inc, mc68hc05x4dw Datasheet - Page 56

• Manufacturer Part Number: mc68hc05x4dw
• Description: Xc68hc705x4 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Resets, Interrupts and Low Power Modes
MC68HC05X4
No
CIRQ/WOI
No
?
Yes
(1) Fetch reset vector
or
(2) Service interrupt:
Stop oscillator and
Wait for time delay
Turn on oscillator.
a. stack
b. set I-bit
c. vector to
to stabilise
Clear I bit.
instruction
all clocks.
interrupt
STOP
routine
Reset
Fetch
?
Freescale Semiconductor, Inc.
Yes
Figure 3. STOP and WAIT flow charts
For More Information On This Product,
Resets, Interrupts and Low Power Modes
Go to: www.freescale.com
Timer clocks active
(1) Fetch reset vector
or
(2) Service interrupt:
Restart processor
Processor clocks
Oscillator active
a. stack
b. set I-bit
c. vector to
instruction
Yes
stopped
interrupt
routine
Reset
WAIT
Fetch
clock
?
interrupt?
Yes
CIRQ
No
Core timer
interrupt?
Yes
No
interrupt?
Yes
WOI
No
16-bit timer
interrupt?
Yes
No
No
10-resets