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DS90UB947-Q1: Functional GPIO?

Part Number: DS90UB947-Q1

Hello,

Some of GPIOs of DS90UB947 seem to have "functional input mode", while for DS90UB948 "functional output mode".

Would you let me know what this mode is?

Thanks.

Regards,

Oguri (TIJ automotive FAE)

  • Oguri-san,

    These GPIO pins that mention a functional input mode are shared with other uses. In the case of GPIO2 and GPIO3, which I believe you are referring to, these are shared with audio inputs I2S_DC and I2S_DD. When the GPIO registers for these pins are left in the default state, they will function as audio input pins in conjunction with the other I2S pins.

    Thanks,
    Jason