MC68HC711D3_05 Datasheet, PDF (55/138 Pages) Freescale Semiconductor, Inc – Microcontrollers

BEGIN
Interrupts
X BIT
Y
IN CCR
SET ?
N
HIGHEST
PRIORITY
Y
INTERRUPT
?
N
XIRQ PIN
Y
LOW ?
N
SET X BIT
FETCH VECTOR
$FFF4, $FFF5
FETCH VECTOR
Y
IRQ ?
N
FETCH VECTOR
$FFF2, $FFF3
Y
RTII = 1 ?
N
REAL-TIME
Y
INTERRUPT
?
N
FETCH VECTOR
$FFF0, $FFF1
Y
IC1I = 1 ?
N
TIMER
Y
IC1F ?
N
FETCH VECTOR
$FFEE, $FFEF
Y
IC2I = 1 ?
N
TIMER
Y
IC2F ?
N
FETCH VECTOR
$FFEC, $FFED
Y
IC3I = 1 ?
N
TIMER
Y
IC3F ?
N
FETCH VECTOR
$FFEA, $FFEB
Y
OC1I = 1 ?
N
2A
TIMER
Y
OC1F ?
N
FETCH VECTOR
$FFE8, $FFE9
2B
Figure 4-5. Interrupt Priority Resolution (Sheet 1 of 2)
MC68HC711D3 Data Sheet, Rev. 2.1
Freescale Semiconductor
55