PIC18F2220/2320/4220/4320
REGISTER 23-2: CONFIG2L:CONFIGURATION REGISTER 2 LOW (BYTE ADDRESS300002h)
U-0
—
U-0
—
U-0
—
U-0
—
R/P-1
R/P-1
R/P-1
BOR
R/P-1
BORV1
BORV0
PWRT
bit 7
bit 0
bit 7-4 Unimplemented: Read as ‘0’
bit 3-2 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
bit 1
bit 0
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
U = Unimplemented bit, read as ‘0’
- n = Value when device is unprogrammed
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
WDT
WDTPS3 WDTPS2 WDTPS1 WDTPS0
bit 7
bit 0
bit 7-5 Unimplemented: Read as ‘0’
bit 4-1 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
bit 0
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
U = Unimplemented bit, read as ‘0’
- n = Value when device is unprogrammed
u = Unchanged from programmed state
2003 Microchip Technology Inc.
DS39599C-page 239
MICROCHIP [ MICROCHIP ]
