Changes

[[#REQ1|REQ1]], [[#REQ2|REQ2]] and [[#REQ3|REQ3]] specify in detail a generic requirement of ''non-intrusiveness''. In other words, it is required that the implementation of link monitoring function is that it is virtually transparent to the other parts of the system. As a consequence, *application <u>software don't need any change. Also, no when adding such functionality</u>*additional <u>PL resources are While neglectable</u> with respect to the system Microblaze-based approach*last but not least, <u>physical link is not affected at all</u>: normal operating, while monitoring is performing  In contrast to XAPP743continuously in progress, is guaranteed by the integrated circuitry of GTP/GTX transceivers<ref name="XAPP743name">UG482 7 Series FPGAs GTP Transceivers User Guide, http://www.xilinx.com/support/documentation/user_guides/ug482_7Series_GTP_Transceivers.pdf</ref> and XAPP1198,<ref name="XAPP1198UG476">UG476 7 Series FPGAs GTX/GTH Transceivers User Guide, http://www.xilinx.com/support/documentation/user_guides/ug476_7Series_Transceivers.pdf</ref> whe.