PIC18F2220 MICROCHIP [Microchip Technology], PIC18F2220 Datasheet - Page 244

• Manufacturer Part Number: PIC18F2220
• Description: 28/40/44-Pin High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F2220/2320/4220/4320
REGISTER 23-8:
REGISTER 23-9:
DS39599C-page 242
bit 7-4
bit 3
bit 2
bit 1
bit 0
bit 7
bit 6
bit 5
bit 4-0
Unimplemented: Read as ‘0’
WRT3: Write Protection bit
1 = Block 3 (001800-001FFFh) not write-protected
0 = Block 3 (001800-001FFFh) write-protected
WRT2: Write Protection bit
1 = Block 2 (001000-0017FFh) not write-protected
0 = Block 2 (001000-0017FFh) write-protected
WRT1: Write Protection bit
1 = Block 1 (000800-000FFFh) not write-protected
0 = Block 1 (000800-000FFFh) write-protected
WRT0: Write Protection bit
1 = Block 0 (000200-0007FFh) not write-protected
0 = Block 0 (000200-0007FFh) write-protected
CONFIG6L: CONFIGURATION REGISTER 6 LOW (BYTE ADDRESS 30000Ah)
CONFIG6H: CONFIGURATION REGISTER 6 HIGH (BYTE ADDRESS 30000Bh)
bit 7
Legend:
R = Readable bit
- n = Value when device is unprogrammed
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’
Legend:
R = Readable bit
- n = Value when device is unprogrammed
bit 7
Note 1: Unimplemented in PIC18FX220 devices; maintain this bit set.
WRTD
Note:
R/P-1
U-0
—
This bit is read-only in normal execution mode; it can be written only in Program
mode.
WRTB
R/P-1
U-0
—
P = Programmable bit
P = Programmable bit
WRTC
(1)
(1)
R-1
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
—
 2003 Microchip Technology Inc.
(1)
WRT1
R/P-1
U-0
—
WRT0
R/P-1
U-0
—
bit 0
bit 0