PIC18F258 MICROCHIP [Microchip Technology], PIC18F258 Datasheet - Page 264

• Manufacturer Part Number: PIC18F258
• Description: High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18FXX8
REGISTER 24-1:
REGISTER 24-2:
DS41159B-page 262
bit 7-4
bit 3-2
bit 1
bit 0
bit 7-6
bit 5
bit 4-3
bit 2-0
CONFIGURATION REGISTER 1 HIGH (CONFIG1H: BYTE ADDRESS 300001h)
CONFIGURATION REGISTER 2 LOW (CONFIG2L: BYTE ADDRESS 300002h)
bit 7
Unimplemented: Read as ‘0’
BORV1:BORV0: Brown-out Reset Voltage bits
11 = V
10 = V
01 = V
00 = V
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
- n = Value when device is unprogrammed
Legend:
R = Readable bit
- n = Value when device is unprogrammed
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 F
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
bit 7
U-0
U-0
—
—
BOR
BOR
BOR
BOR
set to 2.0V
set to 2.7V
set to 4.2V
set to 4.5V
U-0
U-0
—
—
P = Programmable bit
P = Programmable bit
OSCSEN
Preliminary
R/P-1
U-0
—
(1)
(1)
U-0
—
U-0
—
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
BORV1
R/P-1
U-0
—
BORV0
OSC
R/P-1
FOSC2
R/P-1
2002 Microchip Technology Inc.
)
BOREN
R/P-1
FOSC1
R/P-1
PWRTEN
FOSC0
R/P-1
R/P-1
bit 0
bit 0