Single-wire peer-to-peer bus

A single-wire peer-to-peer (P2P) bus apparatus comprising:

• a first peer device coupled to a single-wire bus and assigned a first bus access priority, the first peer device is configured to broadcast an opening start-of-sequence (SOS) sequence configured to start telegram communication and provide a timing reference for at least one second peer device;
• and
• the at least one second peer device coupled to the single-wire bus and assigned at least one second bus access priority lower than the first bus access priority;
• wherein at least one selected peer device among the first peer device and the at least one second peer device is configured to:
• assert a bus contention indication when the single-wire bus is in a defined bus state configured to permit bus contention;
• determine whether the bus contention indication is successful based on the first bus access priority of the first peer device and the at least one second bus access priority of the at least one second peer device;
• and
• communicate over the single-wire bus in response to the bus contention indication being successful.