
2004 Microchip Technology Inc.
Preliminary
DS39637A-page 349
PIC18F2480/2580/4480/4580
REGISTER 24-8:
CONFIG6L: CONFIGURATION REGISTER 6 LOW (BYTE ADDRESS 30000Ah)
U-0
U-0
U-0
U-0
—
—
—
—
bit 7
REGISTER 24-9:
CONFIG6H: CONFIGURATION REGISTER 6 HIGH (BYTE ADDRESS 30000Bh)
R/C-1
R/C-1
R-1
U-0
WRTD
WRTB
WRTC
(1)
—
bit 7
R/C-1
WRT3
(1)
R/C-1
WRT2
(1)
R/C-1
WRT1
R/C-1
WRT0
bit 0
bit 7-4
bit 3
Unimplemented:
Read as ‘
0
’
WRT3:
Write Protection bit
(1)
1
= Block 3 (006000-007FFFh) not write-protected
0
= Block 3 (006000-007FFFh) write-protected
WRT2:
Write Protection bit
(1)
1
= Block 2 (004000-005FFFh) not write-protected
0
= Block 2 (004000-005FFFh) write-protected
WRT1:
Write Protection bit
1
= Block 1 (002000-003FFFh) not write-protected
0
= Block 1 (002000-003FFFh) write-protected
WRT0:
Write Protection bit
1
= Block 0 (000800-001FFFh) not write-protected
0
= Block 0 (000800-001FFFh) write-protected
bit 2
bit 1
bit 0
Note 1:
Unimplemented in PIC18FX480 devices; maintain this bit set.
Legend:
R = Readable bit
-n = Value when device is unprogrammed
C = Clearable bit
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
U-0
—
U-0
—
U-0
—
U-0
—
bit 0
bit 7
WRTD:
Data EEPROM Write Protection bit
1
= Data EEPROM not write-protected
0
= Data EEPROM write-protected
WRTB:
Boot Block Write Protection bit
1
= Boot block (000000-0007FFh) not write-protected
0
= Boot block (000000-0007FFh) write-protected
WRTC:
Configuration Register Write Protection bit
(1)
1
= Configuration registers (300000-3000FFh) not write-protected
0
= Configuration registers (300000-3000FFh) write-protected
Note 1:
This bit is read-only in normal execution mode; it can be written only in
Program mode.
bit 6
bit 5
bit 4-0
Unimplemented:
Read as ‘
0
’
Legend:
R = Readable bit
-n = Value when device is unprogrammed
C = Clearable bit
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state