ARM Cortex A9 - Interrupts; A.3 Interrupts

Signal Descriptions
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A.3 Interrupts
Table A-3 shows the interrupt line signals.
Table A-3 Interrupt line signals
Name I/O Source Description
nFIQ I Interrupt 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.
nIRQ I Interrupt 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.