MC68HC05JJ6 Datasheet, PDF (49/216 Pages) Freescale Semiconductor, Inc – General Release Specification Microcontrollers

Interrupts
FROM
RESET
YES
I BIT SET?
NO
EXTERNAL ^YES
INTERRUPT?
NO
CORE TIMER ^YES
INTERRUPT?
NO
TIMER
YES
INTERRUPT?
NO
SERIAL
YES
INTERRUPT?
NO
ANALOG
YES
INTERRUPT?
NO
CLEAR IRQ LATCH
STACK PCL, PCH, X, A, CCR
SET I BIT
LOAD PC WITH INTERRUPT VECTOR
MC68HC05JJ6/MC68HC05JP6 — Rev. 3.2
Freescale Semiconductor
FETCH NEXT
INSTRUCTION
SWI
YES
INSTRUCTION?
NO
RTI
YES
INSTRUCTION?
NO
UNSTACK CCR, A, X, PCH, PCL
EXECUTE INSTRUCTION
Figure 4-2. Interrupt Flowchart
Interrupts
General Release Specification
49