Yes, but it would take an RS-232/485 transceiver to accomplish.
The MAX79356 (ZENO) has its UART0 port, which is just a UART port. RS-232/485 only define the voltages and physical layer; they do not define the data transmission protocol. If you wanted to use RS-232/485 to connect to UART0, you absolutely could, but you would need to make sure the host processor is following the UART protocol defined in the ZENO documentation. In this case, you would have a host processor or micro send UART packets to an RS-485 transceiver. The transceiver would drive a cable, and the cable would connect to a remote transceiver. The remote transceiver would then be connected to the ZENO. The logic voltage of the transceiver and the ZENO must match for proper operation.