World's first H.264 video I/O companions optimised for MOST auto and ADAS networks

03-02-2015 | Microchip Technology | Semiconductors

Announced as the world's first H.264 video I/O companion ICs optimised for
the proven and robust Media Oriented Systems Transport (MOST) high-speed
automotive infotainment and Advanced Driver Assistance Systems (ADAS)
network technologies, Microchip has unveiled the OS85621 and OS85623. The
devices expand the company's existing family of MOST I/O companions with a
cost-effective video codec solution.

According to global information company IHS Technology, the automotive
display market will grow exponentially over the next six years. Driver
Information Displays (DIDs) are one of the fastest growing segments, with an
expected increase from 30.8 million units in 2014 to 102.8 million in 2020.
Driven by safety requirements, the camera market in motor vehicles is also
projected to explode. These predictions reflect the increasing demand for
video content in all car classes.

Featuring a low-latency, high-quality H.264 codec and an on-chip Digital
Transmission Content Protection (DTCP) coprocessor, the OS85621 enables
automotive designers to implement a comprehensive content-protected video
transmission solution within days. Video streams with restricted access from
devices such as DIDs, digital media drives and TV tuners can now be easily
transmitted as encrypted H.264 over a MOST network, satisfying today's
market demand for high-quality audio and video within the automotive

The OS85621's on-chip DTCP coprocessor supports hardware acceleration of the
computation-intensive operations required for DTCP authentication and
content protection. Up to eight independent data streams can be
simultaneously routed through the DTCP coprocessor's cypher engine for M6 or
AES-128 encryption/decryption.

The ultra-low-latency mode of the H.264 codec enables single-digit
millisecond latency from video input to video output, including encoding,
transmission over a MOST network and decoding. This real-time, high-speed
video processing makes the OS85623, with no DTCP coprocessor, ideal for
camera-based ADAS applications that are designed to enhance vehicle safety.

Both devices feature a number of hardware interfaces commonly used for
infotainment data exchange. Their video-interface port supports a variety of
industry-standard formats and resolutions, including HD for seamless
interfacing to video sources. A streaming port supports legacy audio formats
and 7.1 multi-channel audio up to 24 bits. Two independent,
inter-chip-communication Media Local Bus (MediaLB) ports provide a seamless
interface to Microchip's Intelligent Network Interface Controllers (INICs)
for MOST networks, as well as application processors. These video I/O
companion chips also feature an additional Transport Stream Interface for
compressed video streams.

To ensure compatibility with other DTCP devices and further reduce
development efforts, Microchip also offers its free and ready-to-use
DTCP-Stack for I/O Companions. Additionally, Microchip's optional OS85621
MOST ToGo reference design makes the creation of automotive ADAS and
infotainment systems easy, enabling designers to focus on application
software development.

The OS85621 and OS85623 H.264 video I/O companion ICs are available are
offered in BGA 196 packages and are available now, says the company.

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