Smart Module Series
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⚫ For USB 3.1, it is suggested to do simulation after the design is completed. If the cable is too long or
there are too many vias, a redriver needs to be added to ensure the quality of signal transmission if
necessary.
Table 11: USB Trace Length Inside the Module
3.10. UART Interfaces
The module provides three UART interfaces:
⚫ UART0: four-wire UART interface, supports RTS and CTS hardware flow control
⚫ UART4 (debug UART): two-wire UART interface, used for debugging by default
⚫ UART1: two-wire UART interface
Table 12: Pin Definition of UART Interfaces