SMSC - Low-Cost, High-Performance I/O Port Expander and DTCP Co-Processor for MOST Networks

With its expanded communication ports, this companion chip allows the INIC family to stay cost optimized in providing minimal application interfaces at a low pin count, said Stefan Lux, Product Marketing Manager for SMSC?s Automotive group. Together with the INIC, the OS85650 offers a complete solution for network applications, including data exchange on MOST networks. The primary function of the OS85650 is to route data streams simultaneously between industry standard application I/O interfaces, including MediaLB® (3-Pin and 6-Pin), HBI, TSI, SPI and I²S. It is the first MediaLB 6-Pin device that supports all features of the MOST150 multimedia network. Together with the 16 bit parallel Host Bus Interface (HBI), it enables a high-speed connection between the INIC150 and multiple External Host Controllers (EHCs) with over 300Mbit/s. It is also possible to use the OS85650 as a bridge between MediaLB 6-Pin and MediaLB 3-Pin devices.

The high-performance routing engine operates at an internal speed up to 1.5 GBit/s. It is able to route on top of the standard MOST network communication, Ethernet IP packets, multiple MPEG-TS and several high quality 7.1 audio streams. The Digital Transmission Content Protection (DTCP) co-processor autonomously encrypts and decrypts up to 8 multiple synchronous and isochronous data channels routed through the device. It includes full AKE functionality and supports both M6 and AES-128 cipher engines according to DTCP for MOST and DTCP-IP. This content protection is required for high quality audio and video content, like DVD, Blu-ray Disc and HD-Broadcasting Services.