Ordering between AXI Slave Write and Read Channels

On the outbound direction, the PCIe Controller is in cut-through mode. The AXI logic has the store and forward buffers. The PCIe Controller arbitrates outbound (read and write channels) transactions it receives on the AXI slave interface after the asynchronous FIFO buffer for the AXI slave write and read channels. If a read and a write request are both placed on the arbiter in the same cycle, is a programmable priority bit in the local management space indicates which request should be sent out on the link first.