Mplabx -I2C-Temperature sensor TMP102 2015-07-09

i got ack from the slave bt its not receivng right value of temperature.its receiving continously FF
here is the code.....i need help...

int main()

{
I2C1CONbits.GCEN = 1;
TRISA=0;
// SDA=0;
// SCL=0;
char y;

// unsigned int data2,data1,data3;
unsigned char data1,data2,data3;
int data4,data5,data6;
//while(1){
InitI2C();
//while(1){
I2C_Start();
// AckI2C1();// send start sequence
y = I2C_Write_Byte(0x48);...

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