11 watchdog timer, 12 real time clock (rtc), 11 watchdog timer 4.12 real time clock (rtc) – Artesyn COMX-CAR-210 Installation and Use (August 2014) User Manual
Page 64: Figure 4-7, Watchdog timer block diagram
Functional Description
COMX-CAR-210 Installation and Use (6806800L14D)
64
4.11 Watchdog Timer
The COMX-CAR-210 provides a watchdog timer (WDT), which is a combination of two
watchdog timers coming from the COM Express connector and Super I/O.
A valid WDT output signal resets the COMX-CAR-210. The BIOS disables the boot device
(software is enabled when watchdog application loads). The WDT is disabled before enterting
S3 state, and re-enabled upon exiting S3.
4.12 Real Time Clock (RTC)
There is an onboard battery holder. The battery holder allows for the quick and easy
replacement of a 3 V button cell lithium battery which provides backup power to the onboard
RTC.
Figure 4-7
Watchdog Timer Block Diagram
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