PIC18F4520ESLASHMLQTP datasheet(258/390 Pages) MICROCHIP

258 / 390 page

PIC18F2420/2520/4420/4520

DS39631A-page 256

Preliminary

 2004 Microchip Technology Inc.

U-0

R/C-1

—

EBTR3(1,2)

EBTR2(1)

EBTR1

EBTR0

bit 7

bit 0

bit 7-4

Unimplemented: Read as ‘0’

bit 3

EBTR3: Table Read Protection bit(1,2)

= Block 3 (006000-007FFFh) not protected from table reads executed in other blocks

= Block 3 (006000-007FFFh) protected from table reads executed in other blocks

bit 2

EBTR2: Table Read Protection bit(1)

= Block 2 (004000-005FFFh) not protected from table reads executed in other blocks

= Block 2 (004000-005FFFh) protected from table reads executed in other blocks

bit 1

EBTR1: Table Read Protection bit

= Block 1 (002000-003FFFh) not protected from table reads executed in other blocks

= Block 1 (002000-003FFFh) protected from table reads executed in other blocks

bit 0

EBTR0: Table Read Protection bit

= Block 0 (000800-001FFFh) not protected from table reads executed in other blocks

= Block 0 (000800-001FFFh) protected from table reads executed in other blocks

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

U = Unimplemented bit, read as ‘0’

-n = Value when device is unprogrammed

u = Unchanged from programmed state

U-0

R/C-1

U-0

—

EBTRB

—

bit 7

bit 0

bit 7

Unimplemented: Read as ‘0’

bit 6

EBTRB: Boot Block Table Read Protection bit

= Boot block (000000-0007FFh) not protected from table reads executed in other blocks

= Boot block (000000-0007FFh) protected from table reads executed in other blocks

bit 5-0

Unimplemented: Read as ‘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

PIC18F4520E/MLQTP Datasheet(PDF) 258 Page - Microchip Technology

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