29.5.3 Interrupt Sources

The PTC_IRQ interrupt line is connected on one of the internal sources of the host processor interrupt controller (AIC). Using the PTC_IRQ interrupt requires the interrupt controller to be programmed first.

Four interrupts (IRQ0,1,2,3) can be generated in the host interface register. The PTC_IRQ line is a logical “OR” between the four IRQ0, IRQ1, IRQ2 and IRQ3.