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Original question:

TDA4VM: How to make SBL

TDA4VM: what is i2c IO Expander

Zi Wang
Intellectual 415 points

Part Number: TDA4VM

Hello

What is i2c IO Expander
I see eDP and DSI usd i2c IO Expander,but I don't know what this is used for
  • 0
    TI__Expert 4015 points

    Do you have a part number or a schematic to refer to?  Usually an I2C IO Expander is an external component that can be connected to an I2C bus, and allows the I2C bus to control or read from multiple GPIO signals.