The Interrupt Connection Dialog interface does not detect external interrupts, even though the port is declared as SIGIS = INTERRUPT.
How can I add external interrupts in to my EDK design?
The MHS can be modified manually as follows:
PORT INTR = RS232_Uart_1_Interrupt & Ethernet_Lite_IP2INTC_Irpt & net_ExternalPort_0
Priority between the interrupt requests is determined by the vector position. The least significant bit (LSB, in this case bit 0) has the highest priority.
This issue is fixed in the 14.1 design tools.