21.8.1.2 Interrupt Source Enabling

Each interrupt source, including the FIQ in source 0, can be enabled or disabled by using the command registers Interrupt Enable Command register (AIC_IECR) and Interrupt Disable Command register (AIC_IDCR). The interrupt mask of the selected interrupt source can be read in the Interrupt Mask register (AIC_IMR). A disabled interrupt does not affect servicing of other interrupts.