Part Number: TMS320F280049C
In TMS320F28004x Real-Time Microcontrollers Technical Reference Manual (Rev. D) in chapter 3.5.4.4 there is a link to nonexistent IT wiki on interrupt nesting. Either the link has to point to an existing resource or the content of the wiki has to be included in documentation.
Obviously this goes for all C2000 MCU, as I imagine that this part of documentation is shared across devices
While you're at it you might want to check the documentation for links to other Wiki pages.