Hello Mario,
You can identify which pins are available as interrupts on the Reference Manual (VYBRIDRM.pdf, rev 7), on "Chapter 5 Signal Multiplexing", you will notice a great part of the pins have as "Alt0" a description of, for example, PTA0 (this means that specific pin is Port A, pin 0), all pin ports can be configured as interrupts. In this same table you can see which pins are available on the specific package you are using.
The registers you need to change in order to configure the interrupts are described also on the Reference Manual, on "Chapter 7 Port Control and Interrupts (PORT)":
- "7.6 Functional description" will give you an understanding of the working modes.
- "7.5 Memory map and register definition" will describe what registers needs to be configured.
Please notice that PTA0 translates to PORT0_PCR0, as well as PTD3 translates to PORT3_PCR3, as examples.
BR,
Bruno
flaviocaduda
