Datasheet

212
32133D–11/2011
UC3D
15.6.2 Clear Register
Name: CLR
Access Type: Write-only
Offset: 0x004
Reset Value: 0x00000000
When the Watchdog Timer is enabled, this Register must be periodically written within the window time frame or within the
watchdog timeout period, to prevent a watchdog reset.
•KEY
This field must be written twice, first with key value 0x55, then 0xAA, for a write operation to be effective.
• WDTCLR: Watchdog Clear
Writing a zero to this bit has no effect.
Writing a one to this bit clears the WDT counter.
31 30 29 28 27 26 25 24
KEY
23 22 21 20 19 18 17 16
--------
15 14 13 12 11 10 9 8
--------
76543210
-------WDTCLR