Datasheet
PIC16(L)F1938/9
DS40001574C-page 56 2011-2013 Microchip Technology Inc.
REGISTER 4-2: CONFIGURATION WORD 2
R/P-1/1 R/P-1/1 U-1 R/P-1/1 R/P-1/1 R/P-1/1
LVP
(1)
DEBUG
(3)
—BORVSTVRENPLLEN
bit 13 bit 8
U-1 U-1 R/P-1/1 R/P-1/1 U-1 U-1 R/P-1/1 R/P-1/1
— — VCAPEN<1:0>
(2)
— —WRT<1:0>
bit 7 bit 0
Legend:
R = Readable bit P = Programmable bit U = Unimplemented bit, read as ‘1’
‘0’ = Bit is cleared ‘1’ = Bit is set -n = Value when blank or after Bulk Erase
bit 13 LVP: Low-Voltage Programming Enable bit
(1)
1 = Low-voltage programming enabled
0 = High-voltage on MCLR
/VPP must be used for programming
bit 12 DEBUG: In-Circuit Debugger Mode bit
(3)
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
bit 11 Unimplemented: Read as ‘1’
bit 10 BORV: Brown-out Reset Voltage Selection bit
(4)
1 = Brown-out Reset voltage (VBOR – see Tabl e 30-5), low trip point selected
0 = Brown-out Reset voltage (V
BOR – see Table 30-5), high trip point selected
bit 9 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
bit 8 PLLEN: PLL Enable bit
1 = 4xPLL enabled
0 = 4xPLL disabled
bit 7-6 Unimplemented: Read as ‘1’
bit 5-4 VCAPEN<1:0>: Voltage Regulator Capacitor Enable bits
(2)
00 =VCAP functionality is enabled on RA0
01 =V
CAP functionality is enabled on RA5
10 =V
CAP functionality is enabled on RA6
11 = No capacitor on V
CAP pin
bit 3-2 Unimplemented: Read as ‘1’
bit 1-0 WRT<1:0>: Flash Memory Self-Write Protection bits
1
6 kW Flash memory:
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.
2: Reads as ‘11’ on PIC16LF193X only.
3: The DEBUG
bit in Configuration Words is managed automatically by device development tools including
debuggers and programmers. For normal device operation, this bit should be maintained as a ‘1’.
4: See Table 30-5, V
BOR parameter, for specific trip point voltages.