PIC18F2220 Datasheet, PDF (241/388 Pages) Microchip Technology – 28/40/44-Pin High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC18F2220/2320/4220/4320
REGISTER 23-2:
CONFIG2L: CONFIGURATION REGISTER 2 LOW (BYTE ADDRESS 300002h)
U-0
U-0
U-0
U-0
R/P-1
R/P-1
R/P-1
R/P-1
—
—
—
—
BORV1 BORV0 BOR
PWRT
bit 7
bit 0
bit 7-4
bit 3-2
bit 1
bit 0
Unimplemented: Read as ‘0’
BORV1:BORV0: Brown-out Reset Voltage bits
11 = VBOR set to 2.0V
10 = VBOR set to 2.7V
01 = VBOR set to 4.2V
00 = VBOR set to 4.5V
BOR: Brown-out Reset enable bit⁽¹⁾
1 = Brown-out Reset enabled
0 = Brown-out Reset disabled
PWRT: Power-up Timer enable bit⁽¹⁾
1 = PWRT disabled
0 = PWRT enabled
Note 1: The Power-up Timer is decoupled from Brown-out Reset, allowing these features to
be independently controlled.
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 23-3:
CONFIG2H: CONFIGURATION REGISTER 2 HIGH (BYTE ADDRESS 300003h)
U-0
U-0
U-0
R/P-1
R/P-1
R/P-1
R/P-1
R/P-1
—
—
—
WDTPS3 WDTPS2 WDTPS1 WDTPS0 WDT
bit 7
bit 0
bit 7-5
bit 4-1
bit 0
Unimplemented: Read as ‘0’
WDPS<3:0>: Watchdog Timer Postscale Select bits
1111 = 1:32,768
1110 = 1:16,384
1101 = 1:8,192
1100 = 1:4,096
1011 = 1:2,048
1010 = 1:1,024
1001 = 1:512
1000 = 1:256
0111 = 1:128
0110 = 1:64
0101 = 1:32
0100 = 1:16
0011 = 1:8
0010 = 1:4
0001 = 1:2
0000 = 1:1
WDT: 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
 2003 Microchip Technology Inc.
DS39599C-page 239