Added support for downstream burst
read request for a payload of size up to 4 KBytes, if Enable burst capability for RXM BAR2
port is turned on in the Parameter Editor. Previous
maximum downstream read request payload size was 512 bytes.
The IP core can receive and process a burst read
request for a payload of any size supported by the PCI Express
specification (up to 4 KBytes), if it receives such a burst read request
on the PCI Express link.