PIC12F1840 MICROCHIP [Microchip Technology], PIC12F1840 Datasheet - Page 42

• Manufacturer Part Number: PIC12F1840
• Description: 8-Pin Flash Microcontrollers with nanoWatt XLP Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC12F/LF1840
REGISTER 4-1:
DS41441A-page 42
bit 13
bit 6
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
bit 13
bit 12
bit 11
bit 10-9
bit 8
bit 7
bit 6
bit 5
bit 4-3
Note 1:
FCMEN
R/P-1/1
R/P-1/1
MCLRE
2:
3:
Enabling Brown-out Reset does not automatically enable Power-up Timer.
The entire data EEPROM will be erased when the code protection is turned off during an erase.
The entire program memory will be erased when the code protection is turned off.
FCMEN: Fail-Safe Clock Monitor Enable bit
1 = Fail-Safe Clock Monitor is enabled
0 = Fail-Safe Clock Monitor is disabled
IESO: Internal External Switchover bit
1 = Internal/External Switchover mode is enabled
0 = Internal/External Switchover mode is disabled
CLKOUTEN: Clock Out Enable bit
If FOSC Configuration bits are set to LP, XT, HS modes:
All other FOSC modes:
BOREN<1:0>: Brown-out Reset Enable bits
11 = BOR enabled
10 = BOR enabled during operation and disabled in Sleep
01 = BOR controlled by SBOREN bit of the BORCON register
00 = BOR disabled
CPD: Data Code Protection bit
1 = Data memory code protection is disabled
0 = Data memory code protection is enabled
CP: Code Protection bit
1 = Program memory code protection is disabled
0 = Program memory code protection is enabled
MCLRE: RA3/MCLR/V
If LVP bit = 1:
If LVP bit = 0:
PWRTE: Power-up Timer Enable bit
1 = PWRT disabled
0 = PWRT enabled
WDTE<1:0>: Watchdog Timer Enable bit
11 = WDT enabled
10 = WDT enabled while running and disabled in Sleep
01 = WDT controlled by the SWDTEN bit in the WDTCON register
00 = WDT disabled
This bit is ignored.
1 = MCLR/V
0 = MCLR/V
This bit is ignored, CLKOUT function is disabled. Oscillator function on the CLKOUT pin.
PWRTE
R/P-1/1
R/P-1/1
1 = CLKOUT function is disabled. I/O function on the CLKOUT pin.
0 = CLKOUT function is enabled on the CLKOUT pin
CONFIGURATION WORD 1
IESO
WPUA register.
PP
PP
W = Writable bit
‘0’ = Bit is cleared
x = Bit is unknown
pin function is MCLR; Weak pull-up enabled.
pin function is digital input; MCLR internally disabled; Weak pull-up under control of
CLKOUTEN
PP
R/P-1/1
R/P-1/1
WDTE1
(3)
Pin Function Select bit
(2)
(1)
Preliminary
BOREN1
WDTE0
R/P-1/1
R/P-1/1
(1)
U = Unimplemented bit, read as ‘1’
-n/n = Value at POR and BOR/Value at all other Resets
P = Programmable bit
BOREN0
R/P-1/1
R/P-1/1
FOSC2
 2011 Microchip Technology Inc.
R/P-1/1
R/P-1/1
FOSC1
CPD
R/P-1/1
R/P-1/1
FOSC0
CP
bit 7
bit 0