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AWR2944EVM: What are the four UARTs on the AWR2944EVM used for?

Part Number: AWR2944EVM

hi

I am studying the usage of the 2944.

In the manual of the 2944, I learned that the four UARTs have different roles, as shown in the figure.

Question 1: Are the four UARTs referring to MSS UART, DSS UART, BSS UART, and RS232UART?

Question 2: I compared the EVM schematic and the MSS UART connected to XDS110 should be responsible for debugging registers mentioned in the screenshot, am I correct?

Question 3: What functions do the other three UARTs serve? Why is the DSS UART in a disconnected state on the EVM?

Simon