I am referring the MC9S12ZVM-Family RM
In that Chapter 4.4.3 Priority Decoder has a NOTE.
Care must be taken to ensure that all exception requests remain active until
the system begins execution of the applicable service routine; otherwise, the
exception request may not get processed at all or the result may be a
spurious interrupt request (vector at address (vector base + 0x0001DC))
Can someone please explain what exactly "care must be taken " here mean.
From a software point of view what exactly are the steps to be taken to ensure the exception request remains active.
Thank you in advance