Hello all, I went through the document of the PCI Express Specification and the transaction ordering wasn't clear to me. I would really appreciate the help of the experts here when they help me understand it better and light me through the details of it. I undesrtood the Flow Control of the PCI Express and Virtual Channel but the transaction ordering of this is little bit hazy. Thanks and any help would be greatly appreacited. Thanks in advance. With best regards Hariharan K Srinivasan. --------------------------------- Do you Yahoo!? New Yahoo! Photos - easier uploading and sharing -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.opencores.org/forums.cgi/pci/attachments/20031208/146f1e0c/attachment.htm