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TUSB4020BI-Q1: When will PWRCTL1/BATEN1 behave as an output pin?

Part Number: TUSB4020BI-Q1

Hi, Team

Hope you are doing well!

I have a question about the PWRCTL1/BATEN1 Pin of TUSB4020BI-Q1.

In datasheet, PWRCTL1/BATEN1 is described as I/O Pin, as input Pin, it is used for control of the downstream power switch for Port 1.

When will it behave as an output pin? I don't find related description in the datasheet.

Thanks & Best Regards

Jeff