CONFIG7

CONFIG7

Configuration Byte 7

Notes:

1.Once protection is enabled through ICSP™ or a self-write, it can only be reset through a Bulk Erase.
2.BBSIZE[2:0] bits can only be changed when BBEN = 1. Once BBEN = 0, BBSIZE[2:0] can only be changed through a Bulk Erase.

Name:: CONFIG7
Address:: 30 0006h
Reset:
Access:

Bit7	6	5	4	3	2	1	0
		DEBUG	SAFEN	BBEN	BBSIZE[2:0]
Access		R/W	R/W	R/W	R/W	R/W	R/W
Reset		1	1	1	1	1	1

Bit 5 – DEBUG: Debugger Enable

Debugger Enable

Value	Description
1	Background debugger disabled
0	Background debugger enabled

Bit 4 – SAFEN: Storage Area Flash (SAF) Enable(1)

Storage Area Flash (SAF) Enable⁽¹⁾

Value	Description
1	SAF is disabled
0	SAF is enabled

Bit 3 – BBEN: Boot Block Enable(1)

Boot Block Enable⁽¹⁾

Value	Description
1	Boot Block is disabled
0	Boot Block is enabled

Bits 2:0 – BBSIZE[2:0]: Boot Block Size Selection(2)

Boot Block Size Selection⁽²⁾

Table 1. Boot Block Size
BBEN	BBSIZE	End Address of Boot Block	Boot Block Size (words)
BBEN	BBSIZE	End Address of Boot Block	PIC18Fx4Q41	PIC18Fx5Q41	PIC18Fx6Q41
`1`	`xxx`	–	–
`0`	`111`	00 03FFh	512
`0`	`110`	00 07FFh	1024
`0`	`101`	00 0FFFh	2048
`0`	`100`	00 1FFFh	4096
`0`	`011`	00 3FFFh	–	8192
`0`	`010`	00 7FFFh	–		16384
`0`	`001`	00 FFFFh	–
`0`	`000`	01 FFFFh	–