Calibration setting is comprised of gain and offset settings. These settings must be programmed into the corresponding device registers before the temperature is read from the TMU temperature value register. The calibration setting ensures that the reported temperature approximates the actual die temperature (within the error specified in the data sheet).
The specified accuracy of the reported temperature cannot be met if gain and offset settings are not used.
Refer to the “TMU Calibration” section in the respective Hardware reference manual for the recommended TMU_GAIN and TMU_offset values.