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TUSB4020BI: FULLPWRMGMTz/SMBA1 pin

K.Yaita
Guru 29720 points
Part Number: TUSB4020BI

Hi Team,

My customer wants to use SMBus mode and the datasheet shows the following about FULLPWRMGMTz/SMBA1 pin.



I understand FULLPWRMGMTz/SMBA1 pin should be set high to set "SMBus slave address bit1 = 1".
However "Power switching not supported" in this case.
If my customer wants to set "Power switching supported", should he overwrite fullPwrMgmtz bit by an SMBus host after power-on reset?

Best Regards,
Yaita