10.8.1 WDTCON0

Watchdog Timer Control Register 0
Note:
  1. Times are approximate. WDT time is based on 31 kHz LFINTOSC.
  2. When WDTCPS in CONFIG3 = 11111, the Reset value (q) of WDTPS is ‘01011’. Otherwise, the Reset value of WDTPS is equal to WDTCPS in CONFIG3.
  3. When WDTCPS in CONFIG3L ≠ 11111, these bits are read-only.
Name: WDTCON0
Address: 0xECD

Bit 76543210 
   WDTPS[4:0]SEN 
Access R/WR/WR/WR/WR/WR/W 
Reset qqqqq0 

Bits 5:1 – WDTPS[4:0]  Watchdog Timer Prescale Select bits(1)

Bit Value = Prescale Rate
ValueDescription
11111 to 10011 Reserved. Results in minimum interval (1 ms)
10010 1:8388608 (223) (Interval 256s nominal)
10001 1:4194304 (222) (Interval 128s nominal)
10000 1:2097152 (221) (Interval 64s nominal)
01111 1:1048576 (220) (Interval 32s nominal)
01110 1:524288 (219) (Interval 16s nominal)
01101 1:262144 (218) (Interval 8s nominal)
01100 1:131072 (217) (Interval 4s nominal)
01011 1:65536 (Interval 2s nominal) (Reset value)
01010 1:32768 (Interval 1s nominal)
01001 1:16384 (Interval 512 ms nominal)
01000 1:8192 (Interval 256 ms nominal)
00111 1:4096 (Interval 128 ms nominal)
00110 1:2048 (Interval 64 ms nominal)
00101 1:1024 (Interval 32 ms nominal)
00100 1:512 (Interval 16 ms nominal)
00011 1:256 (Interval 8 ms nominal)
00010 1:128 (Interval 4 ms nominal)
00001 1:64 (Interval 2 ms nominal)
00000 1:32 (Interval 1 ms nominal)

Bit 0 – SEN Software Enable/Disable for Watchdog Timer bit

ValueNameDescription
— If WDTE = 1x This bit is ignored
1 If WDTE = 01 WDT is turned on
0 If WDTE = 01 WDT is turned off
— If WDTE = 00 This bit is ignored
Times are approximate. WDT time is based on 31 kHz LFINTOSC.When WDTCPS in CONFIG3 = 11111, the Reset value (q) of WDTPS is ‘01011’. Otherwise, the Reset value of WDTPS is equal to WDTCPS in CONFIG3.When WDTCPS in CONFIG3L ≠ 11111, these bits are read-only.