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Protoco I Conventions Data states on the SDA line can change only during SCL LOW periods. SDA state changes during SCL HIGH are reserved for indicating START and STOP conditions (See Figure l). On power-up of the ISL95711 the SDA pin is in the input mode. AIII2C interface operations must begin with a START condition, which is a HIGH to LOW transition of SDA while SCL is HIGH. The ISL95711 continuously monitors the SDA and SCL lines for the START condition and does not respond to any command until this condition is met (See Figure l). A START condition is ignored during the power-up sequence and during internal non-volatile write cycles. AIII2C interface operations must be terminated by a STOP condition, which is a LOW to HIGH transition of SDA while SCL is HIGH (See Figure l). A STOP condition at the end of a read operation, or at the end of a write operation to volatile bytes only places the device in its standby mode. A STOP condition during a write operation to a non-volatile byte, initiates an internal non-volatile write cycle. The device enters its standby state when the internal non-volatile write cycle is completed.