ZHCSBT2G November 2012 – October 2017 66AK2H06 , 66AK2H12 , 66AK2H14
PRODUCTION DATA.
The ARM CorePac interrupt controller (AINTC) is responsible for prioritizing all service requests from the system peripherals and the secondary interrupt controller CIC2 and then generating either nIRQ or nFIQ to the Cortex-A15 processor. The type of the interrupt (nIRQ or nFIQ) and the priority of the interrupt inputs are programmable. The AINTC interfaces to the Cortex-A15 processor via the AXI port through an VBUS2AXI bridge and runs at half the processor speed. It has the capability to handle up to 480 requests, which can be steered/prioritized as A15 nFIQ or nIRQ interrupt requests.
The general features of the AINTC are:
On the chip level, there is a dedicated chip level interrupt controller to serve the ARM interrupt controller. See Section 8.3 for more details.
Figure 7-3 and Figure 7-4 show an overall view of the ARM CorePac Interrupt Controller.