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6.4. RTC Current Consumption
The module RTC (RV-8803) can operate down to 1.5 V, the i.MX8X RTC minimum supply voltage is 2.4 V. Due to the
higher current consumption of the i-MX8X RTC this part is not powered with the V_RTC voltage rail.
RV-8803 is powered through Schottky diode BAS70 from V_VDD_RTC pin S147 of SMARC con.
6.5. UART Interfaces
Use following UART interfaces with control signals of i.MX8X.
Table 10: Mapping of SMARC SER interfaces to i.MX8X UARTs
SER
UART
SER0
UART1
SER1
UART3
SER2
UART0
SER3
UART2
Configuring the UART for DTE mode will result in the signals being routed to the SMARC pins in conformance with
the SMARC definition of the pin functions.
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SMARC-sAMX8X User Guide. Rev. 1.1
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