Polling mode theory of operation
A Polling Base device cycles through a sequential range of addresses. The Polling Base polls each Polling Remote device, waits for a response, then poll the next remote address in the sequence. Each Polling Remote responds by sending the data from its DIN buffer following the RB and RO parameters. When there is no eligible data to send, the Polling Remote does not respond. The Polling Base polls the next address in the polling sequence after a short delay.