9.1.3 Device Information Area (DIA)

The Device Information Area (DIA) is a dedicated region in the Program Flash Memory. The data are mapped from address 8100h to 813Fh. These locations are read-only and cannot be erased or modified. The DIA contains the Microchip Unique Identifier words, Temperature Indicator range data, and the Fixed Voltage Reference (FVR) voltage readings in millivolts (mV). The DIA Table holds the DIA information for the PIC16F171 family of microcontrollers.

Table 9-3. Device Information Area
Address Range Name of RegionStandard Device Information
8100h - 8108hMUI0Microchip Unique Identifier (9 Words)
MUI1
MUI2
MUI3
MUI4
MUI5
MUI6
MUI7
MUI8
8109hMUI9Reserved (1 Word)
810Ah - 8111hEUI0Optional External Unique Identifier (8 Words)
EUI1
EUI2
EUI3
EUI4
EUI5
EUI6
EUI7
8112hTSLR1(1)Gain = 0.1C×256count (low range setting)
8113hTSLR2(1)Temperature sensor ADC reading at 90°C (low range setting)
8114hTSLR3(1)Offset (low range setting)
8115hTSHR1(2)Gain = 0.1C×256count (high range setting)
8116hTSHR2(2)Temperature sensor ADC reading at 90°C (high range setting)
8117hTSHR3(2)Offset (high range setting)
8118hFVRA1XADC FVR1 output voltage for 1x setting (in mV)
8119hFVRA2XADC FVR1 output voltage for 2x setting (in mV)
811AhFVRA4XADC FVR1 output voltage for 4x setting (in mV)
811BhFVRC1XComparator FVR2 output voltage for 1x setting (in mV)
811ChFVRC2XComparator FVR2 output voltage for 2x setting (in mV)
811DhFVRC4XComparator FVR2 output voltage for 4x setting (in mV)
811Eh - 811FhReservedReserved (2 Words)
Note:
  1. TSLR: Addresses 8112h - 8114h store the measurements for the low range setting of the temperature sensor at VDD = 3.0V, VREF+ = 2.048V from FVR1.
  2. TSHR: Addresses 8115h - 8117h store the measurements for the high range setting of the temperature sensor at VDD = 3.0V, VREF+ = 2.048V from FVR1.