PIC18FXX20 Datasheet, PDF (244/366 Pages) Microchip Technology – 64/80-Pin High Performance 1 Mbit Enhanced FLASH Microcontrollers with A/D

PIC18FXX20
REGISTER 23-3: CONFIG2H: CONFIGURATION REGISTER 2 HIGH (BYTE ADDRESS 300003h)
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
bit 3-1
bit 0
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)
Legend:
R = Readable bit
P = Programmable bit
- n = Value when device is unprogrammed
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
REGISTER 23-4:
CONFIG3L: CONFIGURATION REGISTER 3 LOW (BYTE ADDRESS 300004h)⁽¹⁾
R/P-1
U-0
U-0
U-0
U-0
U-0
R/P-1
R/P-1
WAIT
—
—
—
—
—
PM1
PM0
bit 7
bit 0
bit 7
bit 6-2
bit 1-0
WAIT: External Bus Data Wait Enable bit
1 = Wait selections unavailable for Table Reads and Table Writes
0 = Wait selections for Table Reads and Table Writes are determined by WAIT1:WAIT0 bits
(MEMCOM<5:4>)
Unimplemented: Read as ‘0’
PM1:PM0: Processor Mode Select bits
11 = Microcontroller mode
10 = Microprocessor mode
01 = Microprocessor with Boot Block mode
00 = Extended Microcontroller mode
Note 1: This register is unimplemented in PIC18F6X20 devices; maintain these bits set.
Legend:
R = Readable bit
P = Programmable bit
- n = Value when device is unprogrammed
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
DS39609A-page 242
Advance Information
 2003 Microchip Technology Inc.