WinSystems ITX-P-C444, Руководство по эксплуатации продукта

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ITX-P-C444/Configuration
v1.0 www.winsystems.com Page 11
7.2 Watchdog Timer (WDT)
7.2.1 WDT Register Usage
The Watchdog Timer (WDT) implemented in the ITX-P-C444 board’s i.MX
8M SOC can be used to reset the system if a lock-up prevents a software
task from periodically resetting the watchdog timer. The WDT is controlled
through a set of standard APIs available in the provided operating
systems.
7.3 Real-time Clock/Calendar
The ITX-P-C444 provides two different RTC options. Internal functionality
of the i.MX 8M provides the first RTC for the system. The i.MX 8M based
RTC maintains time as long as main power is connected, even when the
system itself is turned off.
Additionally, an ultra-low current temperature compensated (TCXO) RTC
with clock and calendar functions is provided. The RTC battery connector
enables this second RTC to maintain time even when the ITX-P-C444 is
disconnected from main power.
J13 microSD Connector page 13
J7 USB 3.1 Gen 1 Type-A Connector page 13
J9 HDMI page 13
J8 HD Audio Header page 13
J1 MIPI-CSI Header page 14
J2 LVDS and Backlight Header page 15
J6 USB 2.0 Header page 16
J11 Ethernet (LAN) Dual RJ45 page 16
J3 Multi I/O (GPIO, I2C, SPI, 2x Serial, RST, and PWR Buttons) page 17
Table 2:
Top view components (Continued)
Item Description Reference