MC908GR8CDWE Datasheet, PDF (69/408 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

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