Please find our comments below.
(1). Is there is relation between device select(A2/A1) to above address bits.
Ans) No, A2 and A1 have no relation to address bits. They define the slave address for I2C communication. A2 and A1 you will set accordingly to configure the slave address.
(2.). can you share some example code to use Memory slave address & control register
Slave ID A2 A1(device select) A16 R=1/W=0 1 0 1 0 ? ? ? 0
Ans) Say i have configured A2 as 1 (high) and A1 as 0 (low). Say i am trying to read a memory location 0x 1F0FF.
So now you will first send the Slave device address, followed by two address bytes.
Slave device Address
Slave ID A2 A1 A16 R/W
1010 1 0 1 1
Two address bytes will be 11110000 and 11111111 respectively.