Kontron VMP1 with Netbootloader - Manual (Page 58)

VMP1 Configuration
ID 26037, Rev. 01 Page 4 - 12 ® 2002 PEP Modular Computers GmbH
4.3.4.7 Watchdog Control Register
4.3.4.8 Watchdog Timeout Time
Bits WDT0 and WDT1 are programmed to select the Watchdog timeout value.
• Bits 2 and 3 are reserved
• Bit WD_TRG retriggers the watchdog timer. A “1” written to this bit sets the watch-
dog back to its start condition.
• Bit 5 is reserved
• Bit WD_R (Watchdog Route). If set to 0 (default), then the watchdog timer causes
a reset, If set to 1, the watchdog timer will generate the NMI
• Bit 7: WD_EN: A “1” written to this bit starts the Watchdog. Once it has been
enabled it cannot later be disabled.
Table 4-12: Watchdog Control Register
Register Address MSB 6 5 4 3 2 1 LSB
Watchdog
control
FFe0 0018 WD_EN WD_R Res. WD_TRG Res. Res. WDT1 WDT0
Table 4-13: Watchdog Timeout Time
WDT1 WDT0 Time
0 0 0,5s
0 1 1s
1 0 1,5s
1 1 2s