14.6.1 WDTCON
Note:
- Times are approximate and based on the 31 kHz LFINTOSC clock source.
| Name: | WDTCON |
| Address: | 0x018C |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| CS | PS[4:0] | SEN | |||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | ||
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
Bit 7 – CS Watchdog Timer Clock Source Selection
| Value | Description |
|---|---|
| 1 | SOSC (32.768 kHz) |
| 0 | LFINTOSC (31 kHz) |
Bits 5:1 – PS[4:0] Watchdog Timer Prescale Selection(1)
| Value | Description |
|---|---|
| 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
| Value | Name | Description |
|---|---|---|
| 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 |