14.6.1 WDTCON

Watchdog Timer Control Register
Note:
  1. Times are approximate and based on the 31 kHz LFINTOSC clock source.
Name: WDTCON
Offset: 0x80C

Bit 76543210 
 CS PS[4:0]SEN 
Access R/WR/WR/WR/WR/WR/WR/W 
Reset 0000000 

Bit 7 – CS Watchdog Timer Clock Source Selection

ValueDescription
1 MFINTOSC (31.25 kHz)
0 LFINTOSC (31 kHz)

Bits 5:1 – PS[4:0]  Watchdog Timer Prescale Selection(1)

ValueDescription
11111 - 10011 Reserved. Results in minimum interval (1:32)
10010 1:8388608 (Interval 256s nominal)
10001 1:4194304 (Interval 128s nominal)
10000 1:2097152 (Interval 64s nominal)
01111 1:1048576 (Interval 32s nominal)
01110 1:524288 (Interval 16s nominal)
01101 1:262144 (Interval 8s nominal)
01100 1:131072 (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 WDT Enable/Disable

ValueNameDescription
x If WDTE[1:0] ≠ 01 This bit is ignored
1 If WDTE[1:0] = 01 WDT is enabled
0 If WDTE[1:0] = 01 WDT is disabled
Times are approximate and based on the 31 kHz LFINTOSC clock source.