Reading the datasheet i know that

the device address (DEV_ADDR) is %1001000b, where b is set for read and clear for write (i leave the bit set)

the temperature register is accessed by a pointer; the temperature register address is %00000000 (REG_ADDR)

the sda and scl pins are pulled-up by two 5k6 resistors

so i tried the instruction
i2cread sda,scl,%10010001,%00000000,[var],NOCONNECT

but the noconnect code is always executed, also changing the DEV_ADDR...... i don't know why.......!!!!!!!!!!

Thanks a lot for the help