PIC18F4580 Datasheet, PDF (351/484 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology

PIC18F2480/2580/4480/4580
REGISTER 24-8:
CONFIG6L: CONFIGURATION REGISTER 6 LOW (BYTE ADDRESS 30000Ah)
U-0
U-0
U-0
U-0
R/C-1 R/C-1 R/C-1
R/C-1
—
—
—
—
WRT3⁽¹⁾ WRT2⁽¹⁾ WRT1
WRT0
bit 7
bit 0
bit 7-4
bit 3
bit 2
bit 1
bit 0
Unimplemented: Read as ‘0’
WRT3: Write Protection bit⁽¹⁾
1 = Block 3 (006000-007FFFh) not write-protected
0 = Block 3 (006000-007FFFh) write-protected
WRT2: Write Protection bit⁽¹⁾
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 (000800-001FFFh) not write-protected
0 = Block 0 (000800-001FFFh) write-protected
Note 1: Unimplemented in PIC18FX480 devices; maintain this bit set.
Legend:
R = Readable bit
C = Clearable bit
-n = Value when device is unprogrammed
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
REGISTER 24-9:
CONFIG6H: CONFIGURATION REGISTER 6 HIGH (BYTE ADDRESS 30000Bh)
R/C-1
R/C-1
R-1
U-0
U-0
U-0
U-0
U-0
WRTD WRTB WRTC⁽¹⁾
—
—
—
—
—
bit 7
bit 0
bit 7
bit 6
bit 5
bit 4-0
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 (000000-0007FFh) not write-protected
0 = Boot block (000000-0007FFh) write-protected
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 in normal execution mode; it can be written only in
Program mode.
Unimplemented: Read as ‘0’
Legend:
R = Readable bit
C = Clearable bit
-n = Value when device is unprogrammed
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
 2004 Microchip Technology Inc.
Preliminary
DS39637A-page 349