PIC18LF4420T-I/SO 查看數據表（PDF） - Microchip Technology

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PIC18LF4420T-I/SO

28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC18F2420/2520/4420/4520

REGISTER 23-8:

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(1,2) 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(1,2)

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 PIC18F2420/4420 devices; maintain this bit set.

2: Unimplemented in PIC18F2425/4425 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 23-9:

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 WRTD: Data EEPROM Write Protection bit

1 = Data EEPROM not write-protected

0 = Data EEPROM write-protected

bit 6 WRTB: Boot Block Write Protection bit

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

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

bit 5 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.

bit 4-0 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

DS39631A-page 255

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