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PIC18F6520-I Datasheet, PDF (249/380 Pages) Micrel Semiconductor – 64/80-Pin High-Performance, 256 Kbit to 1 Mbit Enhanced Flash Microcontrollers with A/D
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
- n = Value when device is unprogrammed
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
 2004 Microchip Technology Inc.
DS39609B-page 247