IWR1443BOOST: What data can be output through a serial connection (UART)?

I have an IWR1443BOOST and a DCA1000EVM.
Until now, when using IWR1443BOOST, I used DCA1000EVM connected to the same PC.

I want to connect only the IWR1443BOOST to the PC (without using the DCA1000EVM), measure millimeter waves and output data, so I contacted customer support and received the following reply.
"If the DCA1000EVM is not used, data can be output through a serial connection (UART). The DCA1000EVM is required only for outputting raw ADC data. ”

I have a question, "What data can be output with a serial connection (UART)?"

It would be helpful if someone could tell me.