MC68HC908GR16 Datasheet, PDF (205/310 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
System Integration Module (SIM)
Exception Control
FROM RESET
I BBIRTESAEKT?
YES
INTERRUPT?
NO
YES
I BIT SET?
NO
IRQ
YES
INTERRUPT?
NO
AS MANY INTERRUPTS
AS EXIST ON CHIP
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 15-11. Interrupt Processing
MC68HC908GR16 — Rev. 1.0
MOTOROLA
System Integration Module (SIM)
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Go to: www.freescale.com
Data Sheet
205