PIC16F684-ISL

Manufacturer Part NumberPIC16F684-ISL
ManufacturerMicrochip Technology Inc.
PIC16F684-ISL datasheets
 


Specifications of PIC16F684-ISL

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Page 94/164

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PIC16F684
12.1
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 12-1.
These bits are mapped in program memory location
2007h.
REGISTER 12-1:
CONFIG – CONFIGURATION WORD (ADDRESS: 2007h)
FCMEN
IESO
BODEN1 BODEN0
bit 13
bit 13-12
Unimplemented: Read as ‘1’
bit 11
FCMEN: Fail-Safe Clock Monitor Enabled bit
1 = Fail-Safe Clock Monitor is enabled
0 = Fail-Safe Clock Monitor is disabled
bit 10
IESO: Internal External Switchover bit
1 = Internal External Switchover mode is enabled
0 = Internal External Switchover mode is disabled
bit 9-8
BODEN<1:0>: Brown-out Detect Selection bits
11 = BOD enabled
10 = BOD enabled during operation and disabled in Sleep
01 = BOD controlled by SBODEN bit (PCON<4>)
00 = BOD disabled
bit 7
CPD: Data Code Protection bit
1 = Data memory code protection is disabled
0 = Data memory code protection is enabled
(3)
bit 6
CP: Code Protection bit
1 = Program memory code protection is disabled
0 = Program memory code protection is enabled
bit 5
MCLRE: RA3/MCLR pin function select bit
1 = RA3/MCLR pin function is MCLR
0 = RA3/MCLR pin function is digital input, MCLR internally tied to V
bit 4
PWRTE: Power-up Timer Enable bit
1 = PWRT disabled
0 = PWRT enabled
bit 3
WDTE: Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled and can be enabled by SWDTEN bit (WDTCON<0>)
bit 2-0
FOSC<2:0>: Oscillator Selection bits
111 = RC oscillator: CLKOUT function on RA4/OSC2/CLKOUT pin, RC on RA5/OSC1/CLKIN
110 = RCIO oscillator: I/O function on RA4/OSC2/CLKOUT pin, RC on RA5/OSC1/CLKIN
101 = INTOSC oscillator: CLKOUT function on RA4/OSC2/CLKOUT pin, I/O function on RA5/OSC1/CLKIN
100 = INTOSCIO oscillator: I/O function on RA4/OSC2/CLKOUT pin, I/O function on RA5/OSC1/CLKIN
011 = EC: I/O function on RA4/OSC2/CLKOUT pin, CLKIN on RA5/OSC1/CLKIN
010 = HS oscillator: High-speed crystal/resonator on RA4/OSC2/CLKOUT and RA5/OSC1/CLKIN
001 = XT oscillator: Crystal/resonator on RA4/OSC2/CLKOUT and RA5/OSC1/CLKIN
000 = LP oscillator: Low-power crystal on RA4/OSC2/CLKOUT and RA5/OSC1/CLKIN
Note 1: Enabling Brown-out Detect does not automatically enable Power-up Timer.
2: The entire data EEPROM will be erased when the code protection is turned off.
3: The entire program memory will be erased when the code protection is turned off.
4: When MCLR is asserted in INTOSC or RC mode, the internal clock oscillator is disabled.
Legend:
R = Readable
-n = Value at POR
DS41202C-page 92
Note:
Address 2007h is beyond the user program
memory space. It belongs to the special
configuration
3FFFh), which can be accessed only during
programming. See “PIC12F6XX/16F6XX
Memory
(DS41204) for more information.
CPD
CP
MCLRE PWRTE WDTE
(1)
(2)
(4)
W = Writable bit
U = Unimplemented bit, read as ‘0’
‘1’ = Bit is set
‘0’ = Bit is cleared
Preliminary
memory
space
(2000h-
Programming
Specification”
FOSC2 FOSC1 FOSC0
bit 0
DD
x = Bit is unknown
 2004 Microchip Technology Inc.