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.
If the ICSP interface has been disabled by setting the ICSPDIS configuration bit, the data stored in the DCI memory region will no longer be accessible and can no longer be read.
| Address | Name | Description | Value | Units | ||
|---|---|---|---|---|---|---|
| PIC18F24Q24 | PIC18F25/45/55Q24 | PIC18F26/46/56Q24 | ||||
| 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 | 512 | Bytes | ||
| 3C 0008h | PCNT | Pin count | 28 | 28/40(1)/48 | 28/40(1)/48 | Pins |
Note:
- Pin Count value of 40 is used for 44-pin parts as well.