PIC18F258 MICROCHIP [Microchip Technology], PIC18F258 Datasheet - Page 267

• Manufacturer Part Number: PIC18F258
• Description: High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN
• Manufacturer: MICROCHIP [Microchip Technology]

REGISTER 24-7:
REGISTER 24-8:
2002 Microchip Technology Inc.
bit 7-4
bit 3
bit 2
bit 1
bit 0
bit 7
bit 6
bit 5
bit 4-0
CONFIGURATION REGISTER 6 LOW (CONFIG6L: BYTE ADDRESS 30000Ah)
CONFIGURATION REGISTER 6 HIGH (CONFIG6H: BYTE ADDRESS 30000Bh)
bit 7
Unimplemented: Read as ‘0’
WRT3: Write Protection bit
1 = Block 3 (006000-007FFFh) not write protected
0 = Block 3 (006000-007FFFh) write protected
WRT2: Write Protection bit
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 (000200-001FFFh) not write protected
0 = Block 0 (000200-001FFFh) write protected
Legend:
R = Readable bit
- n = Value when device is unprogrammed
Legend:
R = Readable bit
- n = Value when device is unprogrammed
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 (000000-0001FFh) not write protected
0 = Boot Block (000000-0001FFh) write protected
WRTC: Configuration Register Write Protection bit
1 = Configuration registers (300000-3000FFh) not write protected
0 = Configuration registers (300000-3000FFh) write protected
Unimplemented: Read as ‘0’
WRTD
Note 1: Unimplemented in PIC18FX48 devices; maintain this bit set.
R/P-1
Note:
U-0
—
This bit is read only, and cannot be changed in User mode.
WRTB
R/P-1
U-0
—
P = Programmable bit
P =Programmable bit
WRTC
(1)
(1)
R-1
Preliminary
U-0
—
U-0
—
U-0
—
WRT3
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
R/P-1
U-0
—
(1)
WRT2
R/P-1
U-0
—
PIC18FXX8
(1)
WRT1
R/P-1
U-0
—
DS41159B-page 265
WRT0
R/P-1
U-0
—
bit 0
bit 0