Datasheet

PIC18F2331/2431/4331/4431
DS39616D-page 270  2010 Microchip Technology Inc.
REGISTER 23-7: CONFIG5L: CONFIGURATION REGISTER 5 LOW (BYTE ADDRESS 300008h)
U-0 U-0 U-0 U-0 R/C-1 R/C-1 R/C-1 R/C-1
— — — —CP3
(1,2)
CP2
(1,2)
CP1
(2)
CP0
(2)
bit 7 bit 0
Legend:
R = Readable bit C = Clearable bit U = Unimplemented bit, read as ‘0’
-n = Value when device is unprogrammed U = Unchanged from programmed state
bit 7-4 Unimplemented: Read as ‘0’
bit 3 CP3: Code Protection bit
(1,2)
1 = Block 3 is not code-protected
0 = Block 3 is code-protected
bit 2 CP2: Code Protection bit
(1,2)
1 = Block 2 is not code-protected
0 = Block 2 is code-protected
bit 1 CP1: Code Protection bit
(2)
1 = Block 1 is not code-protected
0 = Block 1 is code-protected
bit 0 CP0: Code Protection bit
(2)
1 = Block 0 is not code-protected
0 = Block 0 is code-protected
Note 1: Unimplemented in PIC18F2331/4331 devices; maintain this bit set.
2: Refer to Figure 23-5 for block boundary addresses.
REGISTER 23-8: CONFIG5H: CONFIGURATION REGISTER 5 HIGH (BYTE ADDRESS 300009h)
R/C-1 R/C-1 U-0 U-0 U-0 U-0 U-0 U-0
CPD
(1)
CPB
(1)
— — — — — —
bit 7 bit 0
Legend:
R = Readable bit C = Clearable bit U = Unimplemented bit, read as ‘0’
-n = Value when device is unprogrammed U = Unchanged from programmed state
bit 7 CPD: Data EEPROM Code Protection bit
(1)
1 = Data EEPROM is not code-protected
0 = Data EEPROM is code-protected
bit 6 CPB: Boot Block Code Protection bit
(1)
1 = Boot Block is not code-protected
0 = Boot Block is code-protected
bit 5-0 Unimplemented: Read as ‘0’
Note 1: Refer to Figure 23-5 for block boundary addresses.