Freescale Semiconductor, Inc.
Resets and Interrupts
2C
2D
Fetch vector at
$FFDA, $FFDB
Yes
Yes
Yes
PAII = 1?
No
PAIF = 1?
No
Fetch vector at
$FFD8, $FFD9
Yes
Yes
SPIE = 1?
No
SPIF = 1?
No
MODF = 1?
No
SCI1
interrupt?
Fetch vector at
$FFD6, $FFD7
Yes
†
No
Spurious interrupt — take IRQ vector
Fetch vector at
$FFF2, $FFF3
† Refer to Figure 10-6 for further details on SCI interrupts.
END
Figure 10-5. Interrupt priority resolution (3 of 3)
Technical Data
MC68HC11P2 — Rev 1.0
Resets and Interrupts
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