MC68HC705J MOTOROLA [Motorola, Inc], MC68HC705J Datasheet - Page 103

• Manufacturer Part Number: MC68HC705J
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

MC68HC705J1A — Rev. 4.0
MOTOROLA
YES
External Interrupt Module (IRQ)
INSTRUCTION?
INSTRUCTION?
INSTRUCTION
FROM RESET
INTERRUPT?
INTERRUPT?
FETCH NEXT
EXTERNAL
I BIT SET?
TIMER
SWI
RTI
NO
NO
NO
NO
NO
Figure 8-2. Interrupt Flowchart
YES
YES
YES
YES
LOAD PC WITH INTERRUPT VECTOR
UNSTACK CCR, A, X, PCH, PCL
STACK PCL, PCH, X, A, CCR
EXECUTE INSTRUCTION
CLEAR IRQ LATCH
SET I BIT
External Interrupt Module (IRQ)
Technical Data
Operation
103