Watchdog Timer Control Register (Wtim); Table 32: Watchdog Timer Control Register (Wtim) - Kontron CP6007-SA User Manual

3.3.5.

Watchdog Timer Control Register (WTIM)

Table 32: Watchdog Timer Control Register (WTIM)

ADDRESS
BIT 7
NAME WTE
ACCESS R/W
RESET 0
BITFIELD
7 WTE
6..5 WMD
4
WEN/WT
R
3..0 WTM
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6 5
WMD
R/W
00
Watchdog timer expired status bit:
0 = Watchdog timer has not expired
1 = Watchdog timer has expired.
Writing a '1' to this bit resets it to 0.
Watchdog mode:
00 = Timer only mode
01 = Reset mode
10 = Interrupt mode
11 = Cascaded mode (dual-stage mode)
Watchdog enable / Watchdog trigger control bit:
0 = Watchdog timer not enabled
Prior to the Watchdog being enabled, this bit is known as WEN. After
the Watchdog is enabled, it is known as WTR. Once the Watchdog timer has been
enabled, this bit cannot be reset to 0. As long as the Watchdog timer is enabled, it will
indicate a '1'.
1 = Watchdog timer enabled
Writing a '1' to this bit causes the Watchdog to be retriggered to the timer value
indicated by bits WTM[3..0].
Watchdog timeout settings:
0000 = 0.125 s
0001 = 0.25 s 1001 = 64 s
0010 = 0.5 s 1010 = 128 s
0011 = 1 s 1011 = 256 s
0100 = 2 s 1100 = 512 s
0101 = 4 s 1101 = 1024 s
0110 = 8 s 1110 = 2048 s
0111 = 16 s 1111 = 4096 s
CP6007-SA, CP6007-RA – User Guide, Rev. 1.0
0x28C
4 3
WEN/WT
R
R/W
0
DESCRIPTION
1000 = 32 s
2 1
WTM
R/W
0000
0
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