User manual
...the world's most energy friendly microcontrollers
2012-04-24 - Giant Gecko Family - d0053_Rev0.96 162
www.energymicro.com
Bit Name Reset Access Description
7 Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
6 SWOSCBLOCK 0 RW Software Oscillator Disable Block
Set to disallow disabling of the selected WDOG oscillator. Writing this bit to 1 will turn on the selected WDOG oscillator if it is not
already running.
Value Description
0 Software is allowed to disable the selected WDOG oscillator. See CMU for detailed description. Note that also CMU
registers are lockable.
1 Software is not allowed to disable the selected WDOG oscillator.
5 EM4BLOCK 0 RW Energy Mode 4 Block
Set to prevent the EMU from entering EM4
Value Description
0 EM4 can be entered. See EMU for detailed description.
1 EM4 cannot be entered.
4 LOCK 0 RW Configuration lock
Set to lock the watchdog configuration. This bit can only be cleared by reset.
Value Description
0 Watchdog configuration can be changed.
1 Watchdog configuration cannot be changed.
3 EM3RUN 0 RW Energy Mode 3 Run Enable
Set to keep watchdog running in EM3.
Value Description
0 Watchdog timer is frozen in EM3.
1 Watchdog timer is running in EM3.
2 EM2RUN 0 RW Energy Mode 2 Run Enable
Set to keep watchdog running in EM2
Value Description
0 Watchdog timer is frozen in EM2.
1 Watchdog timer is running in EM2.
1 DEBUGRUN 0 RW Debug Mode Run Enable
Set to keep watchdog running in debug mode.
Value Description
0 Watchdog timer is frozen in debug mode.
1 Watchdog timer is running in debug mode.
0 EN 0 RW Watchdog Timer Enable
Set to enabled watchdog timer.
12.5.2 WDOG_CMD - Command Register (Async Reg)
For more information about Asynchronous Registers please see Section 5.3 (p. 20) .
Offset Bit Position
0x004
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reset
0
Access
W1
Name
CLEAR