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0x69
Write
Bit No.
7
Name
WDTEV3 WDTEV2 WDTEV1 WDTEV0
WDTEV3-0 Selects the event to occur upon timeout:
Binary
Hex
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
0x6A
Write
Bit No.
7
Name
WDTD7
WDTD7-0
The lowest 8 bits of the 24-bit timeout interval
0x6B
Write
Bit No.
7
Name
WDTD15 WDTD14 WDTD13 WDTD12 WDTD11 WDTD10
WDTD16-8
The middle 8 bits of the 24-bit timeout interval
0x6C
Write
Bit No.
7
Name
WDTD23 WDTD22 WDTD21 WDTD20 WDTD19 WDTD18 WDTD17 WDTD16
WDTD23-16
The highest 8 bits of the 24-bit timeout interval
0x6D
Write/Read
Bit No.
7
Name
WDTTO
WDTTO
When this bit is 1, a timeout occurred on the watchdog timer. Write a 1 to this bit to reset the
timeout indicator.
Helix User Manual Rev A
WDT Timeout Event
6
5
Signal / Function
0
Invalid setting
1
IRQ3
2
IRQ4
3
IRQ5
4
IRQ6
5
IRQ7
6
IRQ9
7
IRQ10
8
Invalid setting
9
IRQ12
A
IRQ14
B
IRQ15
C
NMI Non-maskable interrupt
D
System reset
E
Invalid setting
F
Invalid setting
WDT Timeout Interval Low Byte
6
5
WDTD6
WDTD5
WDTD4
WDT Timeout Interval Middle Byte
6
5
WDT Timeout Interval High Byte
6
5
WDT Timeout Indicator
6
5
-
-
www.diamondsystems.com
4
3
2
-
-
4
3
2
WDTD3
WDTD2
4
3
2
4
3
2
4
3
2
-
-
-
1
0
-
-
1
0
WDTD1
WDTD0
1
0
WDTD9
WDTD8
1
0
1
0
-
-
Page 37
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