6.8 CONFIG8
Note:
- BBSIZE[7:0] bits can only be
changed when BBEN =
1. Once BBEN =0, BBSIZE[7:0] can only be changed through a Bulk Erase.
| Name: | CONFIG8 |
| Offset: | 30 0007h |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| BBSIZE[7:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
Bits 7:0 – BBSIZE[7:0] Boot Block Size Selection(1)
| BBEN | BBSIZE | End Address of Boot Block | Boot Block Size (words) | ||
|---|---|---|---|---|---|
| PIC18Fx4Q20 | PIC18Fx5Q20 | PIC18Fx6Q20 | |||
1 | xxxxxxxx | N/A | N/A | ||
0 | 01111111 | 00 7FFFh | N/A | 16384 | |
0 | 01111110 | 00 7EFFh | N/A | 16256 | |
| . . . | . . . | . . . | . . . | ||
0 | 01000000 | 00 40FFh | N/A | 8320 | |
0 | 00111111 | 00 3FFFh | N/A | 8192 | |
0 | 00111110 | 00 3EFFh | N/A | 8064 | |
| . . . | . . . | . . . | . . . | ||
0 | 00100000 | 00 20FFh | N/A | 4224 | |
0 | 00011111 | 00 1FFFh | 4096 | ||
0 | 00011110 | 00 1EFFh | 3968 | ||
| . . . | . . . | . . . | . . . | ||
0 | 00000011 | 00 03FFh | 512 | ||
0 | 00000010 | 00 02FFh | 384 | ||
0 | 00000001 | 00 01FFh | 256 | ||
0 | 00000000 | 00 00FFh | 128 | ||