On-demand packetization for a chip-to-chip interface

A system, comprising:

• a first integrated circuit connected via a chip-to-chip (C2C) interface to a second integrated circuit,
• wherein the first integrated circuit comprises a protocol layer connected between application circuitry and the C2C interface, wherein the protocol layer is configured to:
• receive a plurality of protocol words from the application circuitry, to be transmitted on the C2C interface, wherein the plurality of protocol words comprises user data and control data and each of the plurality of protocol words exceeds a size of a data word (DW) supported by the C2C interface, and
• packetize the plurality of protocol words by:
• mapping subportions of the plurality of protocol words to separate DWs, wherein each of the subportions are equal to, or less than, the size of the DW, and
• generating at least one DW that contains the remaining portions of the plurality of protocol words not included in the subportions.

A method, comprising:

• receiving, at a protocol layer in an integrated circuit, a plurality of protocol words to be transmitted on a chip-to-chip (C2C) interface, wherein the plurality of protocol words comprises user data and control data and each of the plurality of protocol words exceeds a size of a data word (DW) supported by the C2C interface, and
• packetizing the plurality of protocol words by:
• mapping subportions of the plurality of protocol words to separate DWs, wherein each of the subportions are equal to, or less than, the size of the DW, and
• generating at least one DW that contains the remaining portions of the plurality of protocol words not included in the subportions.