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    The Wires Behind Wireless

    New Ethernet Adaptation Layer Adds Control Option to MIPI A-PHY Automotive Networks

    To satisfy the demand for both advanced safety features and better driver and passenger experiences, automakers are adding more displays, larger in size and with greater resolutions, to the digital cockpit. This trend has created a need for more in-vehicle wiring, which in turn adds cost, weight and complexity to new car designs.

    This is one of the many challenges being addressed by the introduction of MIPI Automotive SerDes Solutions, or MASS for short, which offers a standardized framework for integrating cameras and displays with their associated electronic control units (ECUs) using the MIPI A-PHYSM asymmetric SerDes physical layer as its foundation. 

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    Tags: Automotive, MIPI A-PHY PALs

    MIPI Protocol Adaptation Layers (PALs) — A Conversation with Raj Kumar Nagpal

    Update: MIPI A-PHY was adopted as an IEEE standard in June 2021 and is also available as IEEE 2977-2021.

    MIPI Alliance is rolling out a portfolio of Protocol Adaptation Layers (PALs) to support a range of important automotive sensor and display applications—advanced driver assistance systems (ADAS), autonomous driving systems (ADS) and in-vehicle infotainment (IVI), among others. The PALs enable upper-layer protocols such as MIPI Camera Serial Interface (CSI-2®) and Display Serial Interface (DSI-2SM) to be transported over MIPI A-PHYSM, the first industry-standard, long-reach serializer-deserializer (SerDes) physical layer interface.

    Raj Kumar Nagpal, interim chair of the MIPI PHY Working Group and lead of the MIPI A-PHY Subgroup, talks about how the PALs support A-PHY, as well as their contribution to the broader system of MIPI automotive connectivity solutions currently under development.

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    Tags: MIPI A-PHY, MIPI A-PHY PALs
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