ATxmega256A3U WDT registers The 3 registers of WDT (Watchdog Timer), from 0x80, with their reset value and every field. The ATxmega256A3U has 707 registers in 67 peripherals, one page each.
WDT Watchdog Timer CTRLControl
Address 0x80
Reset 0x00
Access read/write 7 – 6 – 5 PER3 4 PER2 3 PER1 2 PER0 1 ENABLE 0 CEN 3 fields
Field Bits What it does PER 5:2 Period0 8 cycles (8ms @ 3.3V)1 16 cycles (16ms @ 3.3V)2 32 cycles (32ms @ 3.3V)3 64 cycles (64ms @ 3.3V)4 128 cycles (0.128s @ 3.3V)5 256 cycles (0.256s @ 3.3V)6 512 cycles (0.512s @ 3.3V)7 1K cycles (1s @ 3.3V)8 2K cycles (2s @ 3.3V)9 4K cycles (4s @ 3.3V)10 8K cycles (8s @ 3.3V) ENABLE 1 Enable CEN 0 Change Enable
WINCTRLWindow Mode Control
Address 0x81
Reset 0x00
Access read/write 7 – 6 – 5 WPER3 4 WPER2 3 WPER1 2 WPER0 1 WEN 0 WCEN 3 fields
Field Bits What it does WPER 5:2 Windowed Mode Period0 8 cycles (8ms @ 3.3V)1 16 cycles (16ms @ 3.3V)2 32 cycles (32ms @ 3.3V)3 64 cycles (64ms @ 3.3V)4 128 cycles (0.128s @ 3.3V)5 256 cycles (0.256s @ 3.3V)6 512 cycles (0.512s @ 3.3V)7 1K cycles (1s @ 3.3V)8 2K cycles (2s @ 3.3V)9 4K cycles (4s @ 3.3V)10 8K cycles (8s @ 3.3V) WEN 1 Windowed Mode Enable WCEN 0 Windowed Mode Change Enable
STATUSStatus
Address 0x82
Reset 0x00
Access read/write 7 – 6 – 5 – 4 – 3 – 2 – 1 – 0 SYNCBUSY 1 field
Field Bits What it does SYNCBUSY 0 Synchronization busy
BETA