PCIe IP TLP MWr request missing

Hi,

Refer to the "IP Complier for PCI Express User Guide", on page A-3, table A-11, what is the address in Byte 8 should be? I put in a real physical memory address in it but after transmitting the MWr request from end point to the root point in a computer i could not get the data in pointed memory which shows its content unchanged. Why?

Thanks for your helps

Yaoting