Datasheet

 2003-2013 Microchip Technology Inc. DS39609C-page 247
PIC18F6520/8520/6620/8620/6720/8720
REGISTER 23-10: CONFIG6H: CONFIGURATION REGISTER 6 HIGH (BYTE ADDRESS 30000Bh)
R/P-1 R/P-1 R-1 U-0 U-0 U-0 U-0 U-0
WRTD WRTB WRTC
(1)
— — — — —
bit 7 bit 0
bit 7 WRTD: Data EEPROM Write Protection bit
1 = Data EEPROM not write-protected
0 = Data EEPROM write-protected
bit 6 WRTB: Boot Block Write Protection bit
For PIC18FX520 devices:
1 = Boot Block (000000-0007FFh) not write-protected
0 = Boot Block (000000-0007FFh) write-protected
For PIC18FX620 and PIC18FX720 devices:
1 = Boot Block (000000-0001FFh) not write-protected
0 = Boot Block (000000-0001FFh) write-protected
bit 5 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 and cannot be changed in user mode.
bit 4-0 Unimplemented: Read as ‘0’
Legend:
R = Readable bit P = Programmable bit U = Unimplemented bit, read as ‘0’
- n = Value when device is unprogrammed u = Unchanged from programmed state