NOTE: When XON/XOFF is enabled, the multiport will continue to support hardware handshaking lines. If this is not desired, you may disconnect the handshaking lines entirely.
Host-to-multiport-to-peripheral communication:
When the host device transmits data to a peripheral device through the multiport's host port, the data is received and stored in a
If XON/XOFF handshaking is enabled and the host device does not respond, 8 characters later the multiport will send an XOFF character, signaling the computer that it cannot accept more data (however, in reality it can accept another 12 characters before overflowing the buffer).
When the multiport's buffer empties, the multiport will make the CTS line true (positive voltage) and send an XOFF character (if XON/XOFF is enabled), signaling the host device that it can accept more data.
When the multiport retransmits the data to the peripheral device through a peripheral port, and the peripheral device cannot receive any more data, the multiport will expect to see a false condition on the DTR (Data Terminal Ready) line or receive an XOFF character (if XON/XOFF is enabled). When the peripheral device can receive more data, the multiport will expect to see a true condition on the DTR line or receive an XON character (if XON/XOFF is enabled).
