MC68HC908LD64 Datasheet, PDF (125/362 Pages) Freescale Semiconductor, Inc – Microcontrollers

FROM RESET
System Integration Module (SIM)
Exception Control
YES
BREAIKBINTTSEERTR?UPT?
NO
YES
I BIT SET?
NO
IRQ
YES
INTERRUPT?
NO
USB
YES
INTERRUPT?
NO
(As many interrupts as exist on chip)
STACK CPU REGISTERS.
SET I BIT.
LOAD PC WITH INTERRUPT VECTOR.
FETCH NEXT
INSTRUCTION.
SWI
YES
INSTRUCTION?
NO
RTI
YES
INSTRUCTION?
NO
UNSTACK CPU REGISTERS.
EXECUTE INSTRUCTION.
Figure 9-10. Interrupt Processing
MC68HC908LD64 — Rev. 3.0
Freescale Semiconductor
System Integration Module (SIM)
Data Sheet
125