Interrupt Controller for Digital Design using AMBA Protocol 1

Abstract — The Interrupt Controller is designed to interface with the AMBA bus. It can make the system more efficient and more responsive to critical events. Interrupt controller is designed with the concept of priority for immediate selection of peripherals which requires attention or service. The interrupt is necessary for any embedded processor based SOC design that is running a Real Time Operating System. The Interrupt Controller is fully scalable to support 32 interrupt sources and provides a programmable interrupt register which can be used to generate an interrupt under software control. Daisy chain concept is used to cascade the Interrupt Controller to increase the number of inputs. Here AHB is optimized to interface with Interrupt Controller to initiate data transfer on the AHB