MC68HC08JL3_05 Datasheet, PDF (76/198 Pages) Freescale Semiconductor, Inc – Microcontrollers

FROM RESET
BREAIKBINTTSEERTR?UPT?
YES
NO
YES
I BIT SET?
NO
IRQ
YES
INTERRUPT?
NO
TIMER
YES
INTERRUPT?
NO
(As many interrupts as exist on chip)
STACK CPU REGISTERS.
SET I BIT.
LOAD PC WITH INTERRUPT VECTOR.
Technical Data
76
FETCH NEXT
INSTRUCTION
SWI
YES
INSTRUCTION?
NO
RTI
YES
INSTRUCTION?
NO
UNSTACK CPU REGISTERS.
EXECUTE INSTRUCTION.
Figure 7-8. Interrupt Processing
MC68H(R)C08JL3 — Rev. 4.1
Freescale Semiconductor