Kontron SMARC-sA3874i - Manual (Page 43)

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User’s Guide
3.3 ULP-COM sA3874i Debug
3.3.1 Serial Port for Linux Debug
ULP-COM module has 4 serial output ports, SER0, SER1, SER2 and SER3. Out of these 4 serial ports, SER1 is set as
the serial debug port use with Linux. SER1 is exposed (along with all other serial ports available on the module)
in the ULP-COM Evaluation Carrier.
SER1 pin out of the ULP-COM sA3874i is shown below:
TI Cortex A8 CPU ULP-COM sA3874i Edge finger Net Name Notes
Pin # Pin Name Pin # Pin Name
AG5 UART0_TXD P134 SER1_TX SER1_TX Asynchronous serial port data out
AH5 UART0_RXD P135 SER1_RX SER1_RX Asynchronous serial port data in
3.3.2 AM3874 CPU JTAG
A JTAG connector is provided on board for the debugging purpose. Connector Reference Designator: J2 is used for
this purpose. Pin out details are provided in section 4.2.1 “Connector J2 CPU JTAG”.