AM2431: There is something unclear about TRM "6.2.3.8 R5FSS Memory View"

Tool/software:

The TRM refers to spruim2g.pdf

I have a question about the Exception vector bootstrap in TRM "6.2.3.8 R5FSS Memory View".

The explanation of the Exception vector bootstrap states, "The exception vector bootstrap is under software control, which allows these 32 bytes at address 0x00000000 to be remapped somewhere else in the SoC memory map."

I would like more details about the content of "Exception vector bootstrap:" in the above sentence.

Thank you in advance for your help.