SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
The RP can receive any of the four legacy INTx interrupts from the EP. These will trigger the PCIE_LEGACY_PULSE interrupt to the host CPU.
The PCIE_LEGACY_PULSE interrupt is an aggregation INTA_OUT, INTB_OUT, INTC_OUT and INTD_OUT signals from the PCIe core.