MC68HC908LB8_05 Datasheet, PDF (169/234 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

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
INSTRUCTION
YES
?
NO
RTI
YES
INSTRUCTION
?
NO
UNSTACK CPU REGISTERS
EXECUTE INSTRUCTION
Figure 16-5. Interrupt Processing
16.3.2.1 Software Interrupt (SWI) Instruction
The software interrupt (SWI) instruction causes a non-maskable interrupt.
Freescale Semiconductor
MC68HC908LB8 Data Sheet, Rev. 1
Interrupts
169