3.2.1 Boot Loader Parameters for ATmega165A/PA
A clarification has been made to list the Boot loader parameters and the Read-While-Write limits for ATmega165A/PA.
| BOOTSZ1 | BOOTSZ0 | Boot Size | Pages | Application Flash Section | Boot Loader Flash Section | End Application Section | Boot Reset Address (Start Boot Loader Section) |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 128 words | 2 | 0x0000 - 0x1F7F | 0x1F80 - 0x1FFF | 0x1F7F | 0x1F80 |
| 1 | 0 | 256 words | 4 | 0x0000 - 0x1EFF | 0x1F00 - 0x1FFF | 0x1EFF | 0x1F00 |
| 0 | 1 | 512 words | 8 | 0x0000 - 0x1DFF | 0x1E00 - 0x1FFF | 0x1DFF | 0x1E00 |
| 0 | 0 | 1024 words | 16 | 0x0000 - 0x1BFF | 0x1C00 - 0x1FFF | 0x1BFF | 0x1C00 |
Note: The Figure Memory sections shows the different
BOOTSZ Fuse configurations..
| Section | Pages | Address |
|---|---|---|
| Read-While-Write (RWW) section | 112 | 0x0000 - 0x1BFF |
| No Read-While-Write (NRWW) section | 16 | 0x1C00 - 0x1FFF |
Note: For details about these two sections, see NRWW – No
Read-While-Write Section and RWW – Read-While-Write Section.