PIC18F2455T-I/ML View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18F2455T-I/ML

28/40/44-Pin, High-Performance, Enhanced Flash, USB Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC18F2455/2550/4455/4550

REGISTER 25-9: CONFIG6L: CONFIGURATION REGISTER 6 LOW (BYTE ADDRESS 30000Ah)

U-0

—

bit 7

U-0

U-0

U-0

R/C-1

R/C-1

R/C-1

R/C-1

—

—

—

WRT3(1)

WRT2

WRT1

WRT0

bit 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

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) is not write-protected

0 = Block 3 (006000-007FFFh) is write-protected

WRT2: Write Protection bit

1 = Block 2 (004000-005FFFh) is not write-protected

0 = Block 2 (004000-005FFFh) is write-protected

WRT1: Write Protection bit

1 = Block 1 (002000-003FFFh) is not write-protected

0 = Block 1 (002000-003FFFh) is write-protected

WRT0: Write Protection bit

1 = Block 0 (000800-001FFFh) or (001000-001FFFh) is not write-protected

0 = Block 0 (000800-001FFFh) or (001000-001FFFh) is write-protected

Note 1: Unimplemented in PIC18FX455 devices; maintain this bit set.

REGISTER 25-10: 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

Legend:

R = Readable bit

C = Clearable bit

-n = Value when device is unprogrammed

U = Unimplemented bit, read as ‘0’

u = Unchanged from programmed state

bit 7

bit 6

bit 5

bit 4-0

WRTD: Data EEPROM Write Protection bit

1 = Data EEPROM is not write-protected

0 = Data EEPROM is write-protected

WRTB: Boot Block Write Protection bit

1 = Boot block (000000-0007FFh) is not write-protected

0 = Boot block (000000-0007FFh) is write-protected

WRTC: Configuration Register Write Protection bit(1)

1 = Configuration registers (300000-3000FFh) are not write-protected

0 = Configuration registers (300000-3000FFh) are write-protected

Unimplemented: Read as ‘0’

Note 1: This bit is read-only in normal execution mode; it can be written only in Program mode.

DS39632E-page 300

© 2009 Microchip Technology Inc.

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