How can I change the TPS65982 IIC2's Address

hi :

     I have encounter a problem right now, I want to change TPS65982 IIC2's Address in my application,but when I change the resister value on TPS65982's I2C_ADDR pin,It's only change the IIC1's address, IIC2's address can't be changed,so i want to know how to change the IIC2's address,Here is my circuit