Datasheet
2009 Microchip Technology Inc. DS41396A-page 19
PIC12F609/12F615/12F617/16F610/16F616 AND PIC12HV609/12HV615/16HV610/16HV616
REGISTER 5-2: CONFIG: CONFIGURATION WORD (ADDRESS: 2007h) FOR PIC12F617 ONLY
U-1 U-1 U-1 U-1 R/P-1 R/P-1 R/P-1
— — WRT1 WRT0 BOREN1 BOREN0 IOSCFS
bit 13
R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1
CP
MCLRE PWRTE WDTE FOSC2 FOSC1 FOSC0
bit 6
Legend: x = Bit is unknown P = Programmable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared
bit 13-12 Unimplemented: Read as ‘1’
bit 11-10 WRT<1:0>: Flash Program Memory Self Write Enable bit
11 =Write protection off
10 =000h to 1FFh write-protected, 200h to 7FFh may be modified by PMCON1 control
01 =000h to 3FFh write-protected, 400h to 7FFh may be modified by PMCON1 control
00 =000h to 7FFh write-protected, entire program memory is write-protected
bit 9-8 BOREN<1:0>: Brown-out Reset Enable bit
11 =BOR enabled
10 =BOR disabled during Sleep and enabled during operation
0X =BOR disabled
bit 7 IOSCFS: Internal Oscillator Frequency Select
1 =8 MHz
0 =4 MHz
bit 6 CP
: Code Protection
1 = Program memory is not code-protected
0 = Program memory is external read and write-protected
bit 5 MCLRE: MCLR
Pin Function Select
1 =MCLR
pin is MCLR function and weak internal pull-up is enabled
0 =MCLR
pin is alternate function, MCLR function is internally disabled
bit 4 PWRTE
: Power-up Timer Enable bit
(1)
1 = PWRT disabled
0 = PWRT enabled
bit 3 WDTE: Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled
bit 2-0 FOSC<2:0>: Oscillator Selection bits
000 = LP oscillator: Low-power crystal on RA5/T1CKI/OSC1/CLKIN and
RA4/AN3/T1G
/OSC2/CLKOUT
001 = XT oscillator: Crystal/resonator on RA5/T1CKI/OSC1/CLKIN and
RA4/AN3/T1G/
OSC2/CLKOUT
010 = HS oscillator: High-speed crystal/resonator on RA5/T1CKI/OSC1/CLKIN and
RA4/AN3/T1G/OSC2/CLKOUT
011 = EC: I/O function on RA4/AN3/T1G
/OSC2/CLKOUT, CLKIN on RA5/T1CKI/OSC1/CLKIN
100 = INTOSCIO oscillator: I/O function on RA4/AN3/T1G
/OSC2/CLKOUT, I/O function on
RA5/T1CKI/OSC1/CLKIN
101 = INTOSC oscillator: CLKOUT function on RA4/AN3/T1G
/OSC2/CLKOUT, I/O function on
RA5/T1CKI/OSC1/CLKIN
110 = EXTRCIO oscillator: I/O function on RA4/AN3/T1G
/OSC2/CLKOUT, RC on
RA5/T1CKI/OSC1/CLKIN
111 = EXTRC oscillator: CLKOUT function on RA4/AN3/T1G
/OSC2/CLKOUT, RC on
RA5/T1CKI/OSC1/CLKIN
Note 1: Enabling Brown-out Reset does not automatically enable Power-up Timer (PWRT).