Datasheet

Resets and Interrupts
Interrupts
MC68HC908GR8 — Rev 4.0 Technical Data
MOTOROLA Resets and Interrupts 69
Figure 4-6. Interrupt Processing
NO
NO
NO
YES
NO
NO
YES
NO
YES
YES
FROM RESET
BREAK
I BIT SET?
IRQ
INTERRUPT
CGM
INTERRUPT
FETCH NEXT
INSTRUCTION
UNSTACK CPU REGISTERS
STACK CPU REGISTERS
SET I BIT
LOAD PC WITH INTERRUPT VECTOR
EXECUTE INSTRUCTION
YES
YES
I BIT SET?
INTERRUPT
YES
OTHER
INTERRUPTS
NO
SWI
INSTRUCTION
RTI
INSTRUCTION
?
?
?
?
?
?
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cale Semiconductor,
I
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