TMS320F28035: function InitPieVectTable() for interrupt vector table initialization。

Part Number:TMS320F28035

Hi，

I would like to ask, in the routine of the Piccolo processor, the function InitPieVectTable() for interrupt vector table initialization, where the source and destination addresses of the vector table need to add 3 (Source = Source + 3, Dest = Dest + 3; ) Where is the source of this plus 3? In contrast, the Delfino series processors do not need ‘plus 3’. Which one can tell you, thank you very much。