RFPIC12F675 Datasheet, PDF (56/136 Pages) Microchip Technology – FLASH-Based Microcontroller with ASK/FSK Transmitter

rfPIC12F675
10.1 Configuration Bits
The configuration bits can be programmed (read as '0'),
or left unprogrammed (read as '1') to select various
device configurations, as shown in Register 10-1.
These bits are mapped in program memory location
2007h.
Note:
Address 2007h is beyond the user program
memory space. It belongs to the special
configuration memory space (2000h -
3FFFh), which can be accessed only during
programming. See rfPIC12F675 Program-
ming Specification for more information.
REGISTER 10-1: CONFIG — CONFIGURATION WORD (ADDRESS: 2007h)
R/P-1 R/P-1 U-0 U-0 U-0 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1 R/P-1
BG1 BG0 —
—
— CPD CP BODEN MCLRE PWRTE WDTE F0SC2 F0SC1 F0SC0
bit 13
bit 0
bit 13-12
bit 11-9
bit 8
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2-0
BG1:BG0: Bandgap Calibration bits for BOD and POR voltage⁽¹⁾
00 = Lowest bandgap voltage
11 = Highest bandgap voltage
Unimplemented: Read as ‘0’
CPD: Data Code Protection bit^(2)
1 = Data memory code protection is disabled
0 = Data memory code protection is enabled
CP: Code Protection bit^(3)
1 = Program Memory code protection is disabled
0 = Program Memory code protection is enabled
BODEN: Brown-out Detect Enable bit^(4)
1 = BOD enabled
0 = BOD disabled
MCLRE: GP3/MCLR pin function select^(5)
1 = GP3/MCLR pin function is MCLR 
0 = GP3/MCLR pin function is digital I/O, MCLR internally tied to VDD
PWRTE: Power-up Timer Enable bit 
1 = PWRT disabled
0 = PWRT enabled
WDTE: Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled
FOSC2:FOSC0: Oscillator Selection bits
111 = RC oscillator: CLKOUT function on GP4/OSC2/CLKOUT pin, RC on GP5/OSC1/CLKIN 
110 = RC oscillator: I/O function on GP4/OSC2/CLKOUT pin, RC on GP5/OSC1/CLKIN
101 = INTOSC oscillator: CLKOUT function on GP4/OSC2/CLKOUT pin, I/O function on GP5/OSC1/CLKIN
100 = INTOSC oscillator: I/O function on GP4/OSC2/CLKOUT pin, I/O function on GP5/OSC1/CLKIN
011 = EC: I/O function on GP4/OSC2/CLKOUT pin, CLKIN on GP5/OSC1/CLKIN
010 = HS oscillator: High speed crystal/resonator on GP4/OSC2/CLKOUT and GP5/OSC1/CLKIN
001 = XT oscillator: Crystal/resonator on GP4/OSC2/CLKOUT and GP5/OSC1/CLKIN
000 = LP oscillator: Low power crystal on GP4/OSC2/CLKOUT and GP5/OSC1/CLKIN
Note 1: The Bandgap Calibration bits are factory programmed and must be read and saved prior to erasing
the device as specified in the rfPIC12F675 Programming Specification. These bits are reflected in
an export of the configuration word. Microchip Development Tools maintain all calibration bits to
factory settings.
2: The entire data EEPROM will be erased when the code protection is turned off.
3: The entire program memory will be erased, including OSCCAL value, when the code protection is
turned off.
4: Enabling Brown-out Detect does not automatically enable Power-up Timer.
5: When MCLR is asserted in INTOSC or RC mode, the internal clock oscillator is disabled.
Legend:
P = Programmed using ICSP
R = Readable bit
-n = Value at POR
W = Writable bit
1 = bit is set
U = Unimplemented bit, read as ‘0’
0 = bit is cleared
x = bit is unknown
DS70091B-page 56
Preliminary
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