2.3 Device Configuration Information (DCI)
The Device Configuration Information (DCI) is a dedicated region in the memory that holds information about the device, which is useful for programming and bootloader applications. The data stored in this region are read-only and cannot be modified/erased. Refer to the table below for complete DCI table addresses and description.
| Address | Name | Description | Value | Units | ||
|---|---|---|---|---|---|---|
| PIC18F24/44/54Q71 | PIC18F25/45/55Q71 | PIC18F26/46/56Q71 | ||||
| 3C 0000h | ERSIZ | Erase page size | 128 | Words | ||
| 3C 0002h | WLSIZ | Number of write latches per row | 0 | Words | ||
| 3C 0004h | URSIZ | Number of user-erasable pages | 64 | 128 | 256 | Pages |
| 3C 0006h | EESIZ | Data EEPROM memory size | 256 | Bytes | ||
| 3C 0008h | PCNT | Pin count | 28/40(1)/48 | 28/40(1)/48 | 28/40(1)/48 | Pins |
Note:
- Pin Count value of 40 is used for 44-pin parts as well.