MC908MR16CFUE Datasheet, PDF (188/282 Pages) Freescale Semiconductor, Inc – On-chip programming firmware for use with host personal computer, Clock generator module (CGM)

System Integration Module (SIM)
FROM RESET
BRIEBAITK _SOERTS?WI
YES
INTERRUPT?
NO
YES
I BIT SET?
NO
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 14-8. Interrupt Processing
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
188
Freescale Semiconductor