MC68HC08AZ60A Datasheet, PDF (204/480 Pages) Motorola, Inc – Microcontrollers

External Interrupt Module (IRQ)
.
FROM RESET
YES
I BIT SET?
NO
INTERRUPT?
NO
YES
STACK CPU REGISTERS.
SET I BIT.
LOAD PC WITH INTERRUPT VECTOR.
FETCH NEXT
INSTRUCTION.
SWI
INSTRUCTION?
NO
YES
RTI
INSTRUCTION?
NO
YES
UNSTACK CPU REGISTERS.
EXECUTE INSTRUCTION.
Figure 15-2. IRQ Interrupt Flowchart
Advance Information
204
External Interrupt Module (IRQ)
MC68HC08AZ60A — Rev 0.0
MOTOROLA