MC68HC908RF2 Datasheet, PDF (93/254 Pages) Motorola, Inc – HCMOS Microcontroller Unit

FROM RESET
System Integration Module (SIM)
Program Exception Control
YES
BREAIKBINTTSEERTR?UPT?
NO
YES
I BIT SET?
NO
IRQ
INTERRUPT?
NO
AS MANY INTERRUPTS
AS EXIST ON CHIP
YES
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 6-9. Interrupt Processing
MC68HC908RF2 — Rev. 1
MOTOROLA
System Integration Module (SIM)
Advance Information
93