5.3.19 - AsynchRX

Control command reads the oldest 32 bytes from the UE9 UART RX buffer. The buffer holds 256 bytes.

• Flush: If nonzero, the entire 256-byte RX buffer is emptied. If there are more than 32 bytes in the buffer that data is lost.
• NumAsynchBytesInRXBuffer: Returns the number of bytes in the buffer before this read.
• AsynchByte#: Returns the 32 oldest bytes from the RX buffer.