LCD 16x2 I2C baud rate, which active SCL and SDA signals

Started by wilblake, June 22, 2016, 02:30:18 PM

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I have an Olimex 16x2 LCD connected to an I2C interface of an NXP Freescale FRDM-K64F board that has pinout compatible with Arduino Shield. I have programmed the MCU SCL and SDA signals used  the Arduino Shield connector A5 and A4.

    What baud rate can the LCD accept for I2C data transfers?
    The Olimex 16x2 LCD seems to have two sets of I2C SCL and SDA signals. Which SCL and SDA signals communicate with the LCD? On the LCD printed circuit SCL and SDA reside at Arduino Shield A5 and A4 as well as Digital 0 and Digital 1 , SCL and SDA next to AREF.

Thank you,

Wil Blake