Datasheet

© 2006 Microchip Technology Inc. DS41159E-page 267
PIC18FXX8
REGISTER 24-3: CONFIG2H: CONFIGURATION REGISTER 2 HIGH (BYTE ADDRESS 300003h)
REGISTER 24-4: CONFIG4L: CONFIGURATION REGISTER 4 LOW (BYTE ADDRESS 300006h)
U-0 U-0 U-0 U-0 R/P-1 R/P-1 R/P-1 R/P-1
— — — — WDTPS2 WDTPS1 WDTPS0 WDTEN
bit 7 bit 0
bit 7-4 Unimplemented: Read as ‘0’
bit 3-1 WDTPS2:WDTPS0: Watchdog Timer Postscale Select bits
111 = 1:128
110 = 1:64
101 = 1:32
100 = 1:16
011 = 1:8
010 = 1:4
001 = 1:2
000 = 1:1
Note: The Watchdog Timer postscale select bits configuration used in the PIC18FXXX
devices has changed from the configuration used in the PIC18CXXX devices.
bit 0 WDTEN: Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled (control is placed on the SWDTEN bit)
Legend:
R = Readable bit P = Programmable bit U = Unimplemented bit, read as ‘0’
-n = Value when device is unprogrammed u = Unchanged from programmed state
R/P-1 U-0 U-0 U-0 U-0 R/P-1 U-0 R/P-1
DEBUG
— — — —LVP —STVREN
bit 7 bit 0
bit 7 DEBUG
: Background Debugger Enable bit
1 = Background Debugger disabled. RB6 and RB7 configured as general purpose I/O pins.
0 = Background Debugger enabled. RB6 and RB7 are dedicated to In-Circuit Debug.
bit 6-3 Unimplemented: Read as ‘0’
bit 2 LVP: Low-Voltage ICSP Enable bit
1 = Low-Voltage ICSP enabled
0 = Low-Voltage ICSP disabled
bit 1 Unimplemented: Read as ‘0’
bit 0 STVREN: Stack Full/Underflow Reset Enable bit
1 = Stack Full/Underflow will cause Reset
0 = Stack Full/Underflow will not cause Reset
Legend:
R = Readable bit C = Clearable bit U = Unimplemented bit, read as ‘0’
-n = Value when device is unprogrammed u = Unchanged from programmed state