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CC2340R5: RSTN buffer cofigration

Part Number: CC2340R5

Tool/software:

I would like to confirm about RSTN pin.
I have two questions below.

1.
About my application, it is not necessary to reset externally.
In this case, is an external pull-up resistor for RSTN pin required?

2.
When the internal POR of the CC2340 is occurring, is the RSTN pin driven low from the inside?
(If that is the case, is that an open drain drive from inside?)