MC68HC908GP20 Datasheet, PDF (300/406 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

FROM RESET
I BBIRTESAEKT?
INTERRUPT?
YES
NO
YES
I BIT SET?
NO
IRQ0
INTERRUPT?
NO
YES
IRQ
INTERRUPT?
YES
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
INSTRUCTION?
YES _{UNSTACK CPU REGISTERS}
NO
EXECUTE INSTRUCTION
Figure 19-10. Interrupt Processing
Advance Information
300
MC68HC908GP20 — Rev 2.1
Freescale Semiconductor