PIC16LF18854 Datasheet, PDF (92/668 Pages) Microchip Technology – C Compiler Optimized RISC Architecture

PIC16(L)F18856/76
4.2 Register Definitions: Configuration Words
REGISTER 4-1: CONFIG1: CONFIGURATION WORD 1: OSCILLATORS
R/P-1
U-1
R/P-1
U-1
U-1
FCMEN
—
CSWEN
—
—
bit 13
R/P-1
CLKOUTEN
bit 8
U-1
—
bit 7
R/P-1
R/P-1
R/P-1
U-1
RSTOSC<2:0>
—
R/P-1
R/P-1
FEXTOSC<2:0>
R/P-1
bit 0
Legend:
R = Readable bit
‘0’ = Bit is cleared
P = Programmable bit
‘1’ = Bit is
set
U = Unimplemented bit, read as ‘1’
n = Value when blank or after Bulk Erase
bit 13
bit 12
bit 11
bit 10-9
bit 8
bit 7
bit 6-4
bit 3
bit 2-0
FCMEN: Fail-Safe Clock Monitor Enable bit
1 = ON FSCM timer enabled
0 = OFF FSCM timer disabled
Unimplemented: Read as ‘1’
CSWEN: Clock Switch Enable bit
1 = ON Writing to NOSC and NDIV is allowed
0 = OFF The NOSC and NDIV bits cannot be changed by user software
Unimplemented: Read as ‘1’
CLKOUTEN: Clock Out Enable bit
If FEXTOSC = EC (high, mid or low) or Not Enabled
1 = OFF CLKOUT function is disabled; I/O or oscillator function on OSC2
0 = ON CLKOUT function is enabled; FOSC/4 clock appears at OSC2
Otherwise
This bit is ignored.
Unimplemented: Read as ‘1’
RSTOSC<2:0>: Power-up Default Value for COSC bits
This value is the Reset default value for COSC, and selects the oscillator first used by user software
111 = EXT1X
EXTOSC operating per FEXTOSC bits
110 = HFINT1 HFINTOSC (1 MHz)
101 = LFINT
LFINTOSC
100 = SOSC
SOSC
011 = Reserved
010 = EXT4X
EXTOSC with 4x PLL, with EXTOSC operating per FEXTOSC bits
001 = HFINTPLL HFINTOSC with 2x PLL, with OSCFRQ = 16 MHz and CDIV = 1:1(FOSC = 32 MHz)
000 = HFINT32 HFINTOSC with OSCFRQ= 32 MHz and CDIV = 1:1
Unimplemented: Read as ‘1’
FEXTOSC<2:0>: FEXTOSC External Oscillator mode Selection bits
111 = ECH EC(External Clock)
110 = ECM EC(External Clock)
101 = ECL EC(External Clock)
100 = Reserved
011 = Reserved
010 = HS HS(Crystal oscillator)
001 = XT XT(Crystal oscillator)
000 = LP LP(Crystal oscillator)
DS40001824A-page 92
Preliminary
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