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8.5.8 CONFIG8 Configuration Byte 8Note:
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 Address: 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)
Table 8-1. Boot Block
Size Value Condition End Address of Boot Block Boot Block Size (words) PIC18Fx4Q20 PIC18Fx5Q20 PIC18Fx6Q20 xxxxxxxxBBEN =
1N/A N/A 01111111BBEN =
000
7FFFh N/A 16384 01111110BBEN =
000
7EFFh N/A 16256 . .
. . .
. . .
. . . . 01000000BBEN =
000
40FFh N/A 8320 00111111BBEN =
000
3FFFh N/A 8192 00111110BBEN =
000
3EFFh N/A 8064 . .
. . .
. . .
. . . . 00100000BBEN =
000
20FFh N/A 4224 00011111BBEN =
000
1FFFh 4096 00011110BBEN =
000
1EFFh 3968 . .
. . .
. . .
. . . . 00000011BBEN =
000
03FFh 512 00000010BBEN =
000
02FFh 384 00000001BBEN =
000
01FFh 256 00000000BBEN =
000
00FFh 128
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