MC68HC908GR16 Datasheet, PDF (151/310 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Resets and Interrupts
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
MC68HC908GR16 — Rev. 1.0
MOTOROLA
Resets and Interrupts
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Data Sheet
151