FCR Function Control. 0x40000800 0x00 0x400 registers REG0 Register 0. 0x00 read-write I2C0_SDA_FILTER_EN I2C0 SDA Filter Enable 20 1 dis Filter disabled. 0 en Filter enabled. 1 I2C0_SCL_FILTER_EN I2C0 SCL Filter Enable 21 1 dis Filter disabled. 0 en Filter enabled. 1 I2C1_SDA_FILTER_EN I2C1 SDA Filter Enable 22 1 dis Filter disabled. 0 en Filter enabled. 1 I2C1_SCL_FILTER_EN I2C1 SCL Filter Enable 23 1 dis Filter disabled. 0 en Filter enabled. 1