Page 21 - EE Times Europe Magazine – June 2024

EE|Times EUROPE 21

New Developments in MIPI’s High-Speed Automotive Sensor Connectivity Framework

protocols include CSI-2 for image sensors; communication networks, and reducing and data encryption. MASS also supports
MIPI DSI-2 and VESA eDP/DP for displays; costs, cable harness weight and develop- High-Bandwidth Digital Content
and lower-speed protocols for command ment time. Protection for display applications.
and control, such as I C, GPIO, Ethernet, • Functional safety: MASS standardizes
2
SPI and the emerging MIPI I3C protocol. features to help applications meet the MIPI CSI-2 FEATURES FOR AUTOMOTIVE
Using these proven protocols drives econ- FuSa requirements of ISO 26262:2018 IMAGING SYSTEMS
omies of scale, reduces NRE/development “Road vehicles — Functional safety” The CSI-2 protocol connects image sensors to
costs and provides backward and forward and enable designers to build systems application processors and includes features
compatibility. that meet common Automotive Safety that benefit automotive imaging systems,
• SerDes physical layer: MASS is built on Integrity Level (ASIL) specifications, from enabling sensor aggregation optimization,
MIPI A-PHY, the first industry-standard, ASIL-B through ASIL-D. superior objective image quality and
long-reach, asymmetric, SerDes physical • Security: MASS leverages MIPI’s camera energy-consumption reduction. Provisions
layer interface with high noise immunity. security framework for protecting CSI-2 within CSI-2 also alleviate RF emissions
A-PHY is designed to meet the needs of image sensor data. The framework and support “region of interest” extraction,
the automotive industry and eliminates enables key security functionality, includ- always-on inferencing, wire reduction,
the need for proprietary asymmetric ing the authentication of imaging system longer-reach connectivity and the reduction
PHYs and bridges, simplifying in-vehicle components, data integrity protection of current leakage. Features that particularly

MASS stack

MIPI A-PHY SerDes performance table

www.eetimes.eu | JUNE 2024