Interrupts - 1.0 English

Versal ACAP DMA and Bridge Subsystem for PCI Express Product Guide (PG344)

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1.0 English

Multiple interrupt modes can be configured during IP configuration, however only one interrupt mode is used at runtime. If multiple interrupt modes are enabled by the host after PCI bus enumeration at runtime, MSI-X interrupt takes precedence over Legacy interrupt. All of these interrupt modes are sent using the same usr_irq_* interface and the core automatically picks the best available interrupt mode at runtime.