LINKING ADDRESSABLE SHADOW PORT AND PROTOCOL FOR SERIAL BUS NETWORKS

摘要

PURPOSE: A linking addressable shadow port and a protocol for serial bus networks are provided to communicate between devices, systems, boards or networks, and serial backplane buses by using the serial bus. CONSTITUTION: A system is used for communicating between devices via a serial bus utilizing an ASP(Addressable Shadow Port) circuit selected by sending a broadcast message over the serial bus containing an address of an ASP circuit to be selected. The system comprises a plurality of output ports on the ASP circuit and the first configuration code in the broadcast message. Each output port is operable to connect a serial bus slave to the serial bus. The first configuration code is used for determining a route for data signals through the ASP circuit, whereby the serial path includes one, some or all serial bus slaves coupled to the output ports of the ASP circuit.