MC68HC908GR16A Datasheet, PDF (136/270 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

Resets and Interrupts
FROM RESET
BREAK
YES
INTERRUPT
?
NO
YES
IIBBIITTSSEETT??
NO
IRQ
YES
INTERRUPT
?
NO
CGM
YES
INTERRUPT
?
NO
OTHER
YES
INTERRUPTS
?
NO
STACK CPU REGISTERS
SET I BIT
LOAD PC WITH INTERRUPT VECTOR
FETCH NEXT
INSTRUCTION
SWI
YES
INSTRUCTION
?
NO
RTI
YES
INSTRUCTION
?
NO
UNSTACK CPU REGISTERS
EXECUTE INSTRUCTION
Figure 13-5. Interrupt Processing
MC68HC908GR16A Data Sheet, Rev. 1.0
136
Freescale Semiconductor