PIC18F258 MICROCHIP [Microchip Technology], PIC18F258 Datasheet - Page 265

• Manufacturer Part Number: PIC18F258
• Description: High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN
• Manufacturer: MICROCHIP [Microchip Technology]

REGISTER 24-3:
REGISTER 24-4:
2002 Microchip Technology Inc.
bit 7-4
bit 3-1
bit 0
bit 7
bit 6-3
bit 2
bit 1
bit 0
CONFIGURATION REGISTER 2 HIGH (CONFIG2H: BYTE ADDRESS 300003h)
CONFIGURATION REGISTER 4 LOW (CONFIG4L: BYTE ADDRESS 300006h)
Unimplemented: Read as ‘0’
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
WDTEN: Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled (control is placed on the SWDTEN bit)
bit 7
Legend:
R = Readable bit
- n = Value when device is unprogrammed
Legend:
R = Readable bit
- n = Value when device is unprogrammed
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.
Unimplemented: Read as ‘0’
LVP: Low Voltage ICSP Enable bit
1 = Low Voltage ICSP enabled
0 = Low Voltage ICSP disabled
Unimplemented: Read as ‘0’
STVREN: Stack Full/Underflow Reset Enable bit
1 = Stack Full/Underflow will cause RESET
0 = Stack Full/Underflow will not cause RESET
Note:
DEBUG
R/P-1
U-0
—
The Watchdog Timer postscale select bits configuration used in the PIC18FXXX
devices has changed from the configuration used in the PIC18CXXX devices.
U-0
—
U-0
—
C = Clearable bit
P = Programmable bit
U-0
Preliminary
—
U-0
—
U-0
U-0
—
—
WDTPS2
R/P-1
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
U-0
—
WDTPS1
R/P-1
R/P-1
LVP
PIC18FXX8
WDTPS0
R/P-1
U-0
—
DS41159B-page 263
STVREN
WDTEN
R/P-1
R/P-1
bit 0
bit 0