Hardware Flow Control (Rts/Cts Flow Control) - SimCom SIM5300E At Command Manual

1.6.2

Hardware flow control (RTS/CTS flow control)

Hardware flow control achieves the data flow control by controlling the RTS/CTS line. When the data
transfer should be suspended, the CTS line is set inactive until the transfer from the receiving buffer has
completed. When the receiving buffer is ok to receive more data, CTS goes active once again.
To achieve hardware flow control, ensure that the RTS/CTS lines are present on your application platform.
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SIM5300E AT Command Manual V1.02