1 Reply Latest reply on Jan 17, 2018 10:44 PM by anii

    The state of the PWR#_I2C_SDA port

    arai-n_1540581

      Hello

       

      Please tell me the state(CMOS output or Open drain or Hi-Z) of PWR#_I2C_SDA pin(26pin) during the following each operation period?

      Case1: During Reset.

      Case2:Immedietely after reset cancellation(Initial setting).

      Case3:During I2C operation.

      Case4:Transition period of I2C operation END to /PWR operation start.

      Case5:Immedietely after /PWR operation is started(Initial setting)

       

      Best Reagrds

      Arai

        • 1. Re: The state of the PWR#_I2C_SDA port
          anii

          Hello Arai san,

           

          Case1: During RESET, PWR#/I2C_SDA pin will be Hi-Z.

          Case2: After RESET is de-asserted, the pin will be configured for I2C_SDA to look for external EEPROM if any connected to boot from it.

          Case3: During I2C operation, it will be used for I2C operation only which is I/O.

          Case4: It will be Hi-Z while switching.

          Case5: It will be an Output pin.

           

          Regards,

          Anil