22 Fabric Interface Interrupt Controller

The fabric interface interrupt controller (FIIC) gathers interrupt signals from within the microcontroller subsystem (MSS) and makes them available to the FPGA fabric. There are a number of peripherals and other blocks within the MSS that generate interrupt signals. These interrupt signals are connected to the nested vectored interrupt controller (NVIC) of the Cortex-M3 processor, and can be used as potential interrupt sources to a user logic within the FPGA fabric.