SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
The RC 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.