BETAProgram memory
Instructions, the user ID and the configuration words.
Configuration words0x300000 – 0x3000078 B
PIC18C801 memory map
Where everything sits, at its exact address. The PIC18C801 keeps program and data apart (Harvard): program memory holds 16-bit instruction words, addressed in bytes, while the special function registers and the general-purpose RAM share the banked data memory.
Data memory
Banked: special function registers and general-purpose RAM in each bank.
RAM, bank 50x0500 – 0x05FF256 B
RAM, bank 40x0400 – 0x04FF256 B
RAM, bank 30x0300 – 0x03FF256 B
RAM, bank 20x0200 – 0x02FF256 B
RAM, bank 10x0100 – 0x01FF256 B
RAM, bank 00x0080 – 0x00FF128 B
RAM, bank 00x0000 – 0x007F128 B
Every segment
| Segment | Space | Start | End | Size | Page |
|---|---|---|---|---|---|
| RAM, bank 0 | data | 0x0000 | 0x007F | 128 B | |
| General-purpose RAM, all banks | data | 0x0000 | 0x05FF | 1.5 KB | |
| RAM, bank 0 | data | 0x0080 | 0x00FF | 128 B | |
| RAM, bank 1 | data | 0x0100 | 0x01FF | 256 B | |
| RAM, bank 2 | data | 0x0200 | 0x02FF | 256 B | |
| RAM, bank 3 | data | 0x0300 | 0x03FF | 256 B | |
| RAM, bank 4 | data | 0x0400 | 0x04FF | 256 B | |
| RAM, bank 5 | data | 0x0500 | 0x05FF | 256 B | |
| Configuration words | prog | 0x300000 | 0x300007 | 8 B |