MC908AS60ACFU Datasheet, PDF (119/414 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

FROM RESET
YES
BREAIKBINTTSEERTR?UPT?
NO
YES
I BIT SET?
NO
Program Exception Control
IRQ1
INTERRUPT?
NO
(AS MANY INTERRUPTS
AS EXIST ON CHIP)
YES
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 9-9. Interrupt Processing
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
Freescale Semiconductor
119