PIC24FJ64GA104 FAMILY
REGISTER 25-4: CW4: FLASH CONFIGURATION WORD 4
U-1
—
U-1
—
U-1
—
U-1
—
U-1
—
U-1
—
U-1
—
U-1
—
bit 23
bit 16
U-1
—
U-1
—
U-1
—
U-1
—
U-1
—
U-1
—
U-1
—
U-1
—
bit 15
bit 8
R/PO-1
DSWDTEN
bit 7
R/PO-1
R/PO-1
R/PO-1
R/PO-1
R/PO-1
R/PO-1
R/PO-1
DSBOREN
RTCOSC
DSWDTOSC DSWDTPS3 DSWDTPS2 DSWDTPS1 DSWDTPS0
bit 0
Legend:
R = Readable bit
PO = Program Once bit
U = Unimplemented bit, read as ‘0’
‘1’ = Bit is set ‘0’ = Bit is cleared
-n = Value when device is unprogrammed
bit 23-8
bit 7
Unimplemented: Read as ‘1’
DSWDTEN: Deep Sleep Watchdog Timer Enable bit
1= DSWDT is enabled
0= DSWDT is disabled
bit 6
DSBOREN: Deep Sleep BOR Enable bit
1= BOR is enabled in Deep Sleep
0= BOR is disabled in Deep Sleep (does not affect Sleep mode)
bit 5
RTCOSC: RTCC Reference Clock Select bit
1= RTCC uses SOSC as reference clock
0= RTCC uses LPRC as reference clock
bit 4
DSWDTOSC: DSWDT Reference Clock Select bit
1= DSWDT uses LPRC as reference clock
0= DSWDT uses SOSC as reference clock
bit 3-0
DSWDTPS<3:0>: DSWDT Postscale select bits
The DSWDT prescaler is 32; this creates an approximate base time unit of 1 ms.
1111= 1:2,147,483,648 (25.7 days)
1110= 1:536,870,912 (6.4 days)
1101= 1:134,217,728 (38.5 hours)
1100= 1:33,554,432 (9.6 hours)
1011= 1:8,388,608 (2.4 hours)
1010= 1:2,097,152 (36 minutes)
1001= 1:524,288 (9 minutes)
1000= 1:131,072 (135 seconds)
0111= 1:32,768 (34 seconds)
0110= 1:8,192 (8.5 seconds)
0101= 1:2,048 (2.1 seconds)
0100= 1:512 (528 ms)
0011= 1:128 (132 ms)
0010= 1:32 (33 ms)
0001= 1:8 (8.3 ms)
0000= 1:2 (2.1 ms)
DS39951C-page 244
2010 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
