XC68HC705F32 Motorola, XC68HC705F32 Datasheet - Page 137

• Manufacturer Part Number: XC68HC705F32
• Description: MICROCONTROLLER
• Manufacturer: Motorola

MC68HC05F32
external interrupt
or CPI interrupt
Timer1, 2, 3, 4
Core timer
interrupt
interrupt
interrupt
I-bit set
IRQ/Key
interrupt
RESET
From
SCI
SPI
LVI
?
Is
?
?
?
?
?
?
No
No
No
No
No
No
No
Figure 14-1 Interrupt flowchart
RESETS AND INTERRUPTS
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Restore registers
interrupt request
CC, A, X, PC
Clear relevant
from stack:
latch
Yes
Load PC from:
SWI:
IRQ/Key:
CTIMER:
CPI:
TIMER:
LVI:
SPI:
SCI:
Fetch next instruction
PC, X, A, CC
instruction
instruction
Set I-bit
Stack:
SWI
RTI
?
?
$FFFC, $FFFD
$FFFA, $FFFB
$FFF8, $FFF9
$FFF8, $FFF9
$FFF6, $FFF7
$FFF4, $FFF5
$FFF2, $FFF3
$FFF0, $FFF1
No
instruction
Execute
No
MOTOROLA
TPG
14-5
14