
Functional Description
MITX-CORE-820 Installation and Use (6806800M10H)
71
This function is optional as per user’s request.
4.16 Watchdog Timer
The MITX-CORE-820 implements a two-stage watchdog timer (WDT), such as the one
integrated with PCH, with a programmable timeout (one second to ten minutes minimum)
and the ability for software to enable and disable. The BIOS disables the device at boot, and the
software will re-enable when watchdog application loads. Stage-1 timeout event causes an
interrupt and Stage-2 timeout event causes a reset. WDT is disabled before entering S3 state,
and re-enabled upon exiting S3.
4.17 RTC Circuit
There is an on-board battery holder for a BR2032 or an equivalent battery. This battery holder
allows for quick and easy replacement of a 3 V button cell lithium battery which provides back-
up power to the on-board RTC.
4.17.1 Boot Block
The SPI flash supports the boot block section which contains the code to boot to a minimum
DOS. Once the board boots to a minimum DOS, the software program to reflash, the SPI flash
can be run from the DOS command prompt. The boot block will be completely protected.
Table 4-20 S/PDIF Out Header (P30)
Pin
Signal
1
+V5S
2
SPDIF_OUT_HDMI
3
GND
Table 4-21 Clear CMOS Header (P4)
Pin
Signal
Pin
Signal
1
NC
2
RTC_RST#
3
GND
Содержание MITX-CORE-820
Страница 2: ...MITX CORE 820 Installation and Use P N 6806800M10H July 2014 ...
Страница 9: ...MITX CORE 820 Installation and Use 6806800M10H Contents 8 Contents Contents ...
Страница 13: ...MITX CORE 820 Installation and Use 6806800M10H 12 List of Tables ...
Страница 15: ...MITX CORE 820 Installation and Use 6806800M10H 14 List of Figures ...
Страница 23: ...MITX CORE 820 Installation and Use 6806800M10H About this Manual 22 About this Manual ...
Страница 53: ...Controls LEDs and Connectors MITX CORE 820 Installation and Use 6806800M10H 52 ...
Страница 101: ...BIOS MITX CORE 820 Installation and Use 6806800M10H 100 ...
Страница 125: ...Firmware MITX CORE 820 Installation and Use 6806800M10H 124 ...
Страница 129: ...Replacing the Battery MITX CORE 820 Installation and Use 6806800M10H 128 ...
Страница 131: ...Related Documentation MITX CORE 820 Installation and Use 6806800M10H 130 ...
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