MC68HC08AZ32A Datasheet, PDF (182/456 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
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 14-2. IRQ Interrupt Flowchart
Technical Data
182
MC68HC08AZ32A — Rev 1.0
External Interrupt Module (IRQ)
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