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NDiS M535 User Manual
Appendix A: Watchdog Timer
aPPendIx a: WatChdog tImer
Use the GPF4 as the watchdog output for connecting to system reset. The
watchdog settings can be configured using the BRAM interface with 1
control bit and 1 watchdog timer value. The timer supports values ranging
from 3 to 255 seconds and 1 to 255 minutes. The BRAM addresses and
corresponding functions for configuring through BIOS and applications are
listed in the table below.
BRAM: Block 1
Index: 0x0A30
Data: 0x0A31
Name Data Length Offset Address Range
WDT_CONTROL 1 0x68
Bit 7: WDT enable
0: Disable WDT
1: Enable WDT
Bit 0: WDT timeout value unit
0: Second
1: Minute
Default: 0x00
WDT_TIMEOUT 1 0x69
Second: 3~255 seconds
Minute: 1~255 minutes
Default: 3
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