Microchip Technology MA240017 数据表
PIC24F16KA102 FAMILY
DS39927C-page 196
2008-2011 Microchip Technology Inc.
REGISTER 26-5:
FWDT: WATCHDOG TIMER CONFIGURATION REGISTER
R/P-1
R/P-1
U-0
R/P-1
R/P-1
R/P-1
R/P-1
R/P-1
FWDTEN
WINDIS
—
FWPSA
WDTPS3
WDTPS2
WDTPS1
WDTPS0
bit 7
bit 0
Legend:
R = Readable bit
R = Readable bit
P = Programmable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
FWDTEN:
Watchdog Timer Enable bit
1
= WDT is enabled
0
= WDT is disabled (control is placed on the SWDTEN bit)
bit 6
WINDIS:
Windowed Watchdog Timer Disable bit
1
= Standard WDT is selected; windowed WDT disabled
0
= Windowed WDT is enabled
bit 5
Unimplemented:
Read as ‘0’
bit 4
FWPSA:
WDT Prescaler bit
1
= WDT prescaler ratio of 1:128
0
= WDT prescaler ratio of 1:32
bit 3-0
WDTPS<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