2.3 Device Information Area (DIA)
The Device Information Area (DIA) is a dedicated region in the Program Flash Memory. The data is 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 and the Fixed Voltage Reference (FVR) voltage readings in millivolts (mV). Table 2-2 holds the DIA information for the PIC16F13276 family of microcontrollers.
If the ICSP interface has been disabled by setting the ICSPDIS configuration bit, the data stored in the DIA memory region will no longer be accessible and can no longer be read.
| Address Range | Name of Region | Standard Device Information |
|---|---|---|
| 8100h-8108h | MUI0 | Microchip Unique Identifier (9 Words) |
| MUI1 | ||
| MUI2 | ||
| MUI3 | ||
| MUI4 | ||
| MUI5 | ||
| MUI6 | ||
| MUI7 | ||
| MUI8 | ||
| 8109h | MUI9 | Reserved (1 Word) |
| 810Ah-8111h | EUI0 | Optional External Unique Identifier (8 Words) |
| EUI1 | ||
| EUI2 | ||
| EUI3 | ||
| EUI4 | ||
| EUI5 | ||
| EUI6 | ||
| EUI7 | ||
| 8112h | TSLR1(1) | Gain = (low-range setting) |
| 8113h | TSLR2(1) | Temperature indicator ADC reading at 90°C (low-range setting) |
| 8114h | TSLR3(1) | Offset (low-range setting) |
| 8115h | TSHR1(2) | Gain = (high-range setting) |
| 8116h | TSHR2(2) | Temperature indicator ADC reading at 90°C (high-range setting) |
| 8117h | TSHR3(2) | Offset (high-range setting) |
| 8118h | FVRA1X | ADC FVR1 Output voltage for 1x setting (in mV) |
| 8119h | FVRA2X | ADC FVR1 Output Voltage for 2x setting (in mV) |
| 811Ah | FVRA4X | ADC FVR1 Output Voltage for 4x setting (in mV) |
| 811Bh | FVRC1X | Comparator FVR2 Output Voltage for 1x setting (in mV) |
| 811Ch | FVRC2X | Comparator FVR2 Output Voltage for 2x setting (in mV) |
| 811Dh | FVRC4X | Comparator FVR2 Output Voltage for 4x setting (in mV) |
| 811Eh-811Fh | Reserved | Reserved (2 Words) |
|
Note:
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