PIC18C658 MICROCHIP [Microchip Technology], PIC18C658 Datasheet - Page 252

• Manufacturer Part Number: PIC18C658
• Description: High-Performance Microcontrollers with CAN Module
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18CXX8
REGISTER 22-1:
REGISTER 22-2:
DS30475A-page 252
bit 7-6
bit 5
bit 4-3
bit 2-0
bit 7-0
CONFIGURATION REGISTER 1 LOW (CONFIG1L: BYTE ADDRESS 0x300000)
CONFIGURATION REGISTER 1 HIGH (CONFIG1H: BYTE ADDRESS 0x300001)
Reserved: Maintain this bit set
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 = HS4 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
bit 7
CP: Code Protection bits (apply when in Code Protected Microcontroller mode)
1 = Program memory code protection off
0 = All of program memory code protected
Legend:
R = Readable bit
- n = Value when device is unprogrammed
bit 7
Legend:
R = Readable bit
- n = Value when device is unprogrammed
Reserved
R/P-1
R/P-1
CP
Reserved
R/P-1
R/P-1
CP
Advanced Information
P = Programmable bit
P = Programmable bit
OSCSEN
R/P-1
R/P-1
CP
R/P-1
CP
U-0
—
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
R/P-1
CP
U-0
—
FOSC2
R/P-1
R/P-1
CP
2000 Microchip Technology Inc.
FOSC1
R/P-1
R/P-1
CP
FOSC0
R/P-1
R/P-1
CP
bit 0
bit 0