I am using stm8al318a lqfp80 package with GPIO pins PI0 - PI3.
The datasheet says "all IOs mappable to interupt vectors" and the pin description has a check for ext. Interrupt.
But when reading reference manual RM0031 and the interrupt controller chapter with the EXTI registers specified, there are no bits in the registers mapping PORT I to interrupt vectors. There is a note in chapter 12.6 saying "Port G, H and I are available on medium+ and high-density devices only"
My question is how can I map a GPIO on for example PI2 to an external interrupt?