NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 365 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
010
2
8
* T
WDT
(3/18/130/1026) * T
WDT
011
2
10
* T
WDT
(3/18/130/1026) * T
WDT
100
2
12
* T
WDT
(3/18/130/1026) * T
WDT
101
2
14
* T
WDT
(3/18/130/1026) * T
WDT
110
2
16
* T
WDT
(3/18/130/1026) * T
WDT
111
2
18
* T
WDT
(3/18/130/1026) * T
WDT
Table 5.13-1 Watchdog Time-out Interval Period Selection
WDT_S (CLK_DIVCTL8 [9:8])
Watchdog Reset Period (T
RST
)
00
5.3 us
01
682 us
10
87.3 ms
11
1.95 ms
Table 5.13-2 Watchdog Reset Period Selection
T
TIS
WDT reset
(low reset)
T
RSTD
T
RST
T
WDT
T
WDT
: Watchdog Clock Time Period
T
TIS
: Watchdog Time-out Interval Period ( (2
4
~ 2
18
) * T
WDT
)
T
RSTD
: Watchdog Reset Delay Period
- Selectable 3/18/130/1026 * T
WDT
delay period controlled
by RSTDSEL(WDT_ALTCTL [1:0])
T
RST
: Watchdog Reset Period ( 63 * T
WDT
)
WDT_CLK
IF = 1
RSTF = 1
(if RSTEN = 1)
IF
RSTF
Figure 5.13-3 Watchdog Timer Time-out Interval and Reset Period Timing
WDT Wake-up
5.13.5.3
If WDT clock source is selected to 32 kHz, system can be waken-up from Power-down mode