Device Information Area

The Device Information Area (DIA) is a dedicated region in the program memory space. The DIA contains the calibration data for the internal temperature indicator module, the Microchip Unique Identifier words, and the Fixed Voltage Reference voltage readings measured in mV.

The complete DIA table is shown below, followed by a description of each region and its functionality. The data is mapped from 2C0000h to 2C003Fh. These locations are read-only and cannot be erased or modified. The data is programmed into the device during manufacturing.

Table 1. Device Information Area
Address Range Name of Region Standard Device Information
2C0000h-2C0011h MUI0 Microchip Unique Identifier (9 Words)
MUI1
MUI2
MUI3
MUI4
MUI5
MUI6
MUI7
MUI8
2C0012h-2C0013h MUI9 Reserved (1 Word)
2C0014h-2C0023h EUI0 Optional External Unique Identifier (8 Words)
EUI1
EUI2
EUI3
EUI4
EUI5
EUI6
EUI7
2C0024h-2C0025h TSLR1(1) Gain =0.1C×256count (low range setting)
2C0026h-2C0027h TSLR2(1) Temperature indicator ADC reading at 90°C (low range setting)
2C0028h-2C0029h TSLR3(1) Offset (low range setting)
2C002Ah-2C002Bh TSHR1(2) Gain =0.1C×256count (high range setting)
2C002Ch-2C002Dh TSHR2(2) Temperature indicator ADC reading at 90°C (high range setting)
2C002Eh-2C002Fh TSHR3(2) Offset (high range setting)
2C0030h-2C0031h FVRA1X ADC FVR1 Output voltage for 1x setting (in mV)
2C0032h-2C0033h FVRA2X ADC FVR1 Output Voltage for 2x setting (in mV)
2C0034h-2C0035h FVRA4X ADC FVR1 Output Voltage for 4x setting (in mV)
2C0036h-2C0037h FVRC1X Comparator FVR2 output voltage for 1x setting (in mV)
2C0038h-2C0039h FVRC2X Comparator FVR2 output voltage for 2x setting (in mV)
2C003Ah-2C003Bh FVRC4X Comparator FVR2 output voltage for 4x setting (in mV)
2C003Ch-2C003Fh   Unassigned (2 Words)
Notes:
  1. 1.TSLR: Address 2C0024h-2C0029h store the measurements for the low range setting of the temperature sensor at VDD = 3V, VREF+ = 2.048V from FVR1.
  2. 2.TSHR: Address 2C002Ah-2C002Fh store the measurements for the high range setting of the temperature sensor at VDD = 3V, VREF+ = 2.048V from FVR1.