PIC18F2220/2320/4220/4320
REGISTER 23-8: CONFIG6L:CONFIGURATIONREGISTER6LOW(BYTE ADDRESS30000Ah)
U-0
—
U-0
—
U-0
—
U-0
—
R/P-1
WRT3(1) WRT2(1)
R/P-1
R/P-1
R/P-1
WRT1
WRT0
bit 7
bit 0
bit 7-4 Unimplemented: Read as ‘0’
bit 3
bit 2
bit 1
bit 0
WRT3: Write Protection bit(1)
1= Block 3 (001800-001FFFh) not write-protected
0= Block 3 (001800-001FFFh) write-protected
WRT2: Write Protection bit(1)
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
Note 1: Unimplemented in PIC18FX220 devices; maintain this bit set.
Legend:
R = Readable bit
P = Programmable bit
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
- n = Value when device is unprogrammed
REGISTER 23-9: CONFIG6H:CONFIGURATION REGISTER6 HIGH(BYTEADDRESS30000Bh)
R/P-1
R/P-1
R-1
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
WRTD
WRTB
WRTC
bit 7
bit 0
bit 7
bit 6
bit 5
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
Note:
This bit is read-only in normal execution mode; it can be written only in Program
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
DS39599C-page 242
2003 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
