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BQ78350-R1: How to relate BAT and VEN(bq78350-r1)

Part Number: BQ78350-R1
Other Parts Discussed in Thread: BQ76930,

Helllo,

     I have made a 6S demo of bq76930 and bq7850,Now I have tested some basic functions including communication is normal.

But I've found that BAT  and VEN have always been low level, I want to know under what conditions will they be high level? Or I have an error in the circuit diagram below about bq78350-r1?

2、I want  to change the default address,but i find the ADREN is always low level,so i reserve R43. At the same time, I wonder why ADREN is always low level? If don't have ADREN, it's also  to change the address. So what does ADREN do?

Thank you!

Laker