Automotive audio bus data communication protocol

An apparatus comprising:

• at least one memory comprising instructions;
• and
• at least one processor configured to execute the instructions and cause the apparatus to:
• receive a request from a first automotive audio bus client for a first data transmission to a second automotive audio bus client, wherein a first size of the first data transmission exceeds a maximum data frame size;
• parse the first data transmission into a first plurality of data frames based on the first size of the first data transmission and the maximum data frame size;
• send a first header frame to an automotive audio bus manager associated with the second automotive audio bus client, wherein the first header frame includes a first indication of a first incoming long message transmission and the first size of the first data transmission;
• and
• send the first plurality of data frames to the automotive audio bus manager associated with the second automotive audio bus client,
• wherein the apparatus is configured to operate in an autonomous vehicle.

A non-transitory computer-readable storage medium having stored thereon instructions which, when executed by one or more processors, cause the one or more processors to:

• receive, by a first automotive audio bus manager, a request from a first automotive audio bus client for a first data transmission to a second automotive audio bus client, wherein a first size of the first data transmission exceeds a maximum data frame size;
• parse the first data transmission into a first plurality of data frames based on the first size of the first data transmission and the maximum data frame size;
• send a first header frame to a second automotive audio bus manager associated with the second automotive audio bus client, wherein the first header frame includes a first indication of a first incoming long message transmission and the first size of the first data transmission;
• and
• send the first plurality of data frames to the second automotive audio bus manager associated with the second automotive audio bus client,
• wherein the automotive audio bus corresponds to a two-wire bidirectional interface.