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DS560DF810EVM: about schematic from EVM

Part Number: DS560DF810EVM
Other Parts Discussed in Thread: DS560DF810

Tool/software:

Hi team,

In the public version of the DS560DF810, we saw a net name=VPP connected to the GND pin of a CPU as shown in the figure below, which was subsequently connected to P32 (3-pin header) and then to J4 (CONNECTOR, DC POWER JACK, RA, 3-PIN).
From the figure below, you can choose to go directly to the ground or to the DC connector J4 or floating through p32.
I would like to ask if there is any special concept in this circuit? Please explain.

In addition, how do we recommend drawing the circuit? Do you connect it directly to the ground? Or do you need to make a reservation?