The Compact Vector Table (CVT) is a feature to allow writing of compact
code.
When CVT is enabled by writing a '1' to the CVT bit in the Control A register
(CPUINT.CTRLA), the vector table contains these three interrupt vectors:
- 1.The non-maskable interrupts (NMI) at
vector address 1.
- 2.The priority level 1 (LVL1) interrupt
at vector address 2.
- 3.All priority level 0 (LVL0) interrupts share vector address 3.
This feature is most suitable for applications using a small number of
interrupt generators.