MC908JL8CDWE Datasheet, PDF (68/212 Pages) Freescale Semiconductor, Inc – Microcontrollers

System Integration Module (SIM)
FROM RESET
YES
BREAIKBINTTSEERTR?UPT?
NO
YES
I BIT SET?
NO
IRQ
YES
INTERRUPT?
NO
TIMER 1
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?
UNSTACK CPU REGISTERS.
NO
EXECUTE INSTRUCTION.
Figure 5-8. Interrupt Processing
MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1
68
Freescale Semiconductor