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[FAQ] TUSB8041A: what is difference between I2C mode and SMBUS mode for TUSB80xx hub

Brian Zhou
Guru*** 131045 points
Part Number: TUSB8041A

Tool/software:

In I2C mode, Hub is master and I2C is used to read / write external EEPROM . Hub configuration  can be changed by reading external EEPROM

In SMBUS mode, hub is receiver, you can change  hub configuration  by  changing  hub register with SMBUS.

Best

Brian