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A.3. Interrupts

Table A.3 shows the interrupt line signals.

Table A.3. Interrupt line signals
NameI/OSourceDescription
nFIQIInterrupt sources

Cortex-A9 processor FIQ request input line.

Active-LOW fast interrupt request:

0 = Activate fast interrupt

1 = Do not activate fast interrupt.

The processor treats the nFIQ input as level sensitive.

nIRQIInterrupt sources

Cortex-A9 processor IRQ request input line.

Active-LOW interrupt request:

0 = Activate interrupt

1 = Do not activate interrupt.

The processor treats the nIRQ input as level sensitive.