Generations

SMCS’ s Automotive Information Systems product line is the one-stop shop for approved MOST solutions and the latest innovation. Currently two MOST generations are "on the road" (MOST25 and MOST50), a third generation has recently been launched (MOST150). SMSC supports all MOST generations - if possible with the same solutions but in any case using the existing knowledge and experience as much as possible!

Working with MOST from the early beginning SMSC built up a solution portfolio and the corresponding vocabulary of wording together with the MOST Cooperation, the MOST steering committee, the MOST working groups, and the MOST users itself.
The web site is based on this common vocabulary as master structure.

• The "Product Selector" enables to select products according to its MOST generation.
• Each product shows the MOST generation(s) it works for with its icon bar e.g. MOST25:
  MOST25

MOST25

The “classic” MOST25 is the well known and established network for infotainment applications utilizing 25 Mbits/s. The network runs over an optical physical layer by using LED and polymer optical fiber (POF).

MOST50

The full line of MOST50 products doubles the bandwidth available for infotainment applications utilizing a 50 Mbits/s MOST standard with an electrical physical layer (ePHY). This standard offers transmission over an unshielded twisted pair (UTP) of copper wires. This delivers greater flexibility to car makers that design in-vehicle networks from more of a plug-in, component approach.

MOST150

MOST150 allows for a cost-efficient way to transfer digital audio, video, data and control information content at 150 Mbits/s over a polymer optical fiber (POF)-based wire harness, increasing the speed of the network six times more than MOST25 (the optical wire harness and connectors of MOST25 can still be used).

In addition to higher bandwidth, MOST150 features new isochronous transport mechanisms to support extensive video applications, as well as an Ethernet channel for efficient transport of IP-based packet data. Through the use of SMSC's INIC architecture and POF-based Physical Layer, SMSC's new OS81110 ensures a seamless migration path for customers from MOST25 to the 150 Mbits/s speed grade.