如何一次read兩個byte

想一次read兩個byte,但不成功
u16 AT24CXX_2byte(u16 ReadAddr)
{  
u16 temp=0;
    IIC_Start();  
IIC_Send_Byte(0XA0);   //0XA0  send write control/slave address  
IIC_Wait_Ack();
    IIC_Send_Byte(ReadAddr);    //      write word address IIC_Wait_Ack();     
IIC_Start();        
IIC_Send_Byte(0XA1);           // 0xA1 send read control /slave address
IIC_Wait_Ack();
    temp<<=8;   
    temp +=IIC_Read_Byte(1);     // indata to temp
  IIC_Wait_Ack();
    temp<<=8;
    temp +=IIC_Read_Byte(0);     // indata to temp
    IIC_Stop();//  
return temp;
}