PIC18F258-I/SP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18F258-I/SP

28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module

Microchip Technology 

PIC18FXX8

REGISTER 24-1:

CONFIG1H: CONFIGURATION REGISTER 1 HIGH (BYTE ADDRESS 300001h)

U-0

U-0

R/P-1

U-0

U-0

R/P-1 R/P-1 R/P-1

—

—

OSCSEN

—

—

FOSC2 FOSC1 FOSC0

bit 7

bit 0

bit 7-6

bit 5

bit 4-3

bit 2-0

Unimplemented: Read as ‘0’

OSCSEN: Oscillator System Clock Switch Enable bit

1 = Oscillator system clock switch option is disabled (main oscillator is source)

0 = Oscillator system clock switch option is enabled (oscillator switching is enabled)

Unimplemented: Read as ‘0’

FOSC2:FOSC0: Oscillator Selection bits

111 = RC oscillator w/OSC2 configured as RA6

110 = HS oscillator with PLL enabled/clock frequency = (4 x FOSC)

101 = EC oscillator w/OSC2 configured as RA6

100 = EC oscillator w/OSC2 configured as divide-by-4 clock output

011 = RC oscillator

010 = HS oscillator

001 = XT oscillator

000 = LP oscillator

Legend:

R = Readable bit

P = Programmable bit

-n = Value when device is unprogrammed

U = Unimplemented bit, read as ‘0’

u = Unchanged from programmed state

REGISTER 24-2:

CONFIG2L: CONFIGURATION REGISTER 2 LOW (BYTE ADDRESS 300002h)

U-0

U-0

U-0

U-0

R/P-1 R/P-1 R/P-1

R/P-1

—

—

—

—

BORV1 BORV0 BOREN PWRTEN

bit 7

bit 0

bit 7-4

bit 3-2

bit 1

bit 0

Unimplemented: Read as ‘0’

BORV1:BORV0: Brown-out Reset Voltage bits

11 = VBOR set to 2.0V

10 = VBOR set to 2.7V

01 = VBOR set to 4.2V

00 = VBOR set to 4.5V

BOREN: Brown-out Reset Enable bit

1 = Brown-out Reset enabled

0 = Brown-out Reset disabled

PWRTEN: Power-up Timer Enable bit

1 = PWRT disabled

0 = PWRT enabled

Legend:

R = Readable bit

P = Programmable bit

-n = Value when device is unprogrammed

U = Unimplemented bit, read as ‘0’

u = Unchanged from programmed state

DS41159E-page 266

© 2006 Microchip Technology Inc.

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