Methods and apparatus for a serial link addressing scheme

A non-transitory machine-readable storage medium comprising instructions to cause programmable circuitry to at least:

• identify a root device in a serial link network, the root device having a first output port;
• assign a first value as an address of the root device;
• identify a second device in the serial link network that is coupled to the first output port of the root device, the second device having a second output port and a third output port;
• assign a second value as the address of the second device;
• identify a third device and a fourth device in the serial link network, the third device coupled to the second output port and the fourth device coupled to the third output port of the second device;
• assign a third value as the address of the third device and a fourth value as the address of the fourth device;
• and
• provide the second value and the fourth value, which represents a routing range, at the first output port of the root device.

A system comprising:

• a host device including programmable circuitry to configure an addressing scheme for the system;
• a deserializer coupled to the host device and having at least one output port;
• first and second intermediate devices connected in serial to the at least one output port, wherein the first and second intermediate devices have at least one output port and at least one input port;
• a first endpoint device coupled to the second intermediate device at one of the at least one output port of the second intermediate device;
• and
• wherein the programmable circuitry is configured to identify an order of the deserializer, first intermediate device, and second intermediate device from the host device to the first endpoint device and assign address values to the deserializer, first intermediate device, and second intermediate device based on the order, the address values to be used to generate an address range of the at least one output port of the deserializer.

A method comprising:

• identifying serializer circuitry connected to a sensor;
• determining an address of the serializer circuitry;
• identifying an output port of deserializer circuitry storing an address range including the address of the serializer circuitry;
• and
• routing a message to the sensor through the output port.