I2C_OWN_SLAVE_ADDRESS
if (addr & I2C_OWN_SLAVE_ADDRESS) {
addr &= ~I2C_OWN_SLAVE_ADDRESS;
if (reg & I2C_OWN_SLAVE_ADDRESS)
reg &= ~I2C_OWN_SLAVE_ADDRESS;
reg &= ~I2C_OWN_SLAVE_ADDRESS;