PIC24F04KA201 Datasheet, PDF (170/224 Pages) Microchip Technology – 14/20-Pin General Purpose, 16-Bit Flash Microcontrollers with nanoWatt XLP™ Technology

PIC24F04KA201 FAMILY
REGISTER 23-7: FDS: DEEP SLEEP CONFIGURATION REGISTER
R/P-1
R/P-1
U-0
U-0
R/P-1
R/P-1
R/P-1
R/P-1
DSWDTEN DSLPBOR
—
—
DSWDTPS3 DSWDTPS2 DSWDTPS1 DSWDTPS0
bit 7
bit 0
Legend:
R = Readable bit
-n = Value at POR
P = Programmable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
bit 6
bit 5-4
bit 3-0
DSWDTEN: Deep Sleep Watchdog Timer Enable bit
1 = DSWDT enabled
0 = DSWDT disabled
DSLPBOR: Deep Sleep/Low-Power BOR Enable bit (does not affect operation in non Deep Sleep modes)
1 = Deep Sleep BOR enabled in Deep Sleep
0 = Deep Sleep BOR disabled in Deep Sleep
Unimplemented: Read as ‘0’
DSWDTPS<3:0>: Deep Sleep Watchdog Timer 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) nominal
1110 = 1:536,870,912 (6.4 days) nominal
1101 = 1:134,217,728 (38.5 hours) nominal
1100 = 1:33,554,432 (9.6 hours) nominal
1011 = 1:8,388,608 (2.4 hours) nominal
1010 = 1:2,097,152 (36 minutes) nominal
1001 = 1:524,288 (9 minutes) nominal
1000 = 1:131,072 (135 seconds) nominal
0111 = 1:32,768 (34 seconds) nominal
0110 = 1:8,192 (8.5 seconds) nominal
0101 = 1:2,048 (2.1 seconds) nominal
0100 = 1:512 (528 ms) nominal
0011 = 1:128 (132 ms) nominal
0010 = 1:32 (33 ms) nominal
0001 = 1:8 (8.3 ms) nominal
0000 = 1:2 (2.1 ms) nominal
DS39937B-page 168
Preliminary
© 2009 Microchip Technology Inc.