M2F controller has 43 interrupt lines from the MSS interrupt sources. These MSS interrupts are combined to produce 16 MSS to Fabric interrupts (MSS_INT_M2F[15:0]). These interrupts are level sensitive with active-high polarity. The following figure shows the block diagram of M2F interrupt controller.
Figure 1. M2F Interrupt Controller Block
Diagram
The peripherals driving the M2F interrupt source inputs must ensure that their interrupts remain asserted until peripherals are serviced.