PIC16F1946 Datasheet, PDF (58/440 Pages) Microchip Technology – 64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC16F/LF1946/47
REGISTER 4-2:
R/P-1/1
LVP
bit 13
CONFIGURATION WORD 2
R/P-1/1
U-1
R/P-1/1
DEBUG
—
BORV
R/P-1/1
STVREN
R/P-1/1
PLLEN
U-1
—
bit 7
U-1
—
bit 6
U-1
R/P-1/1
U-1
—
VCAPEN
—
U-1
R/P-1/1
R/P-1/1
—
WRT1
WRT0
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
P = Programmable bit
bit 13
bit 12
bit 11
bit 10
bit 9
bit 8
bit 7-5
bit 4
bit 2-3
bit 1-0
LVP: Low-Voltage Programming Enable bit⁽¹⁾
1 = Low-voltage programming enabled
0 = High-voltage on MCLR/VPP must be used for programming
DEBUG: In-Circuit Debugger Mode bit
1 = In-Circuit Debugger disabled, RB6/ICSPCLK and RB7/ICSPDAT are general purpose I/O pins
0 = In-Circuit Debugger enabled, RB6/ICSPCLK and RB7/ICSPDAT are dedicated to the debugger
Unimplemented: Read as ‘1’
BORV: Brown-out Reset Voltage Selection bit
1 = Brown-out Reset voltage set to 1.9V
0 = Brown-out Reset voltage set to 2.5V
STVREN: Stack Overflow/Underflow Reset Enable bit
1 = Stack Overflow or Underflow will cause a Reset
0 = Stack Overflow or Underflow will not cause a Reset
PLLEN: PLL Enable bit
1 = 4xPLL enabled
0 = 4xPLL disabled
Unimplemented: Read as ‘1’
VCAPEN>: Voltage Regulator Capacitor Enable bits
0 = VCAP functionality is enabled on RF0
1 = No capacitor on VCAP pin
Unimplemented: Read as ‘1’
WRT<1:0>: Flash Memory Self-Write Protection bits
8 kW Flash memory (PIC16F/LF1946 only):
11 = Write protection off
10 = 000h to 1FFh write-protected, 200h to 1FFFh may be modified by EECON control
01 = 000h to FFFh write-protected, 1000h to 1FFFh may be modified by EECON control
00 = 000h to 1FFFh write-protected, no addresses may be modified by EECON control
16 kW Flash memory (PIC16F/LF1947):
11 = Write protection off
10 = 000h to 1FFh write-protected, 200h to 3FFFh may be modified by EECON control
01 = 000h to 1FFFh write-protected, 2000h to 3FFFh may be modified by EECON control
00 = 000h to 3FFFh write-protected, no addresses may be modified by EECON control
Note 1: The LVP bit cannot be programmed to ‘0’ when Programming mode is entered via LVP.
DS41414A-page 56
Preliminary
 2010 Microchip Technology Inc.