MC68HC705CT4 Datasheet, PDF (54/152 Pages) Freescale Semiconductor, Inc – General Release Specification

Freescale Semiconductor, Inc.
Operating Modes
STOP
STOP OSCILLATOR
AND ALL CLOCKS
CLEAR I BIT
WAIT
OSCILLATOR ACTIVE
TIMER CLOCK ACTIVE
PROCESSOR CLOCKS STOPPED
CLEAR I BIT
N
EXTERNAL
INTERRUPT
N
(IRQ)
Y
RESET
Y
TURN ON OSCILLATOR
WAIT FOR TIME
DELAY TO STABILIZE
1. FETCH RESET
VECTOR OR
2 SERVICE
INTERRUPT
A. STACK
B. SET I BIT
C. VECTOR TO
INTERRUPT
ROUTINE
RESET
N
Y
EXTERNAL
INTERRUPT
(IRQ)
Y
Y
RESTART
PROCESSOR CLOCK
Y
N
TIMER
INTERRUPT
N
SSI
INTERRUPT
1. FETCH
RESET
VECTOR OR
2. SERVICE INTERRUPT
A. STACK
B. SET I BIT
C. VECTOR TO
INTERRUPT
ROUTINE
N
Y
CORE TIMER
N
INTERRUPTS
Figure 6-3. STOP/WAIT Flowchart
General Release Specification
MC68HC705CT4 — Rev. 2.0
54
Operating Modes
MOTOROLA
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