ASA-ML 2.1 Boosts Automotive Data Rates to 64 Gb/s
The Automotive Serdes Alliance (ASA) has updated its Motion Link (ASA-ML) standard to version 2.1, offering enhanced data rates and new features for automotive and robotic applications. The latest version, supported by Microchip's VS775S and VS776 chips, boasts a top downlink speed of 64 Gb/s and expanded protocol support.
ASA Motion Link v2.1 defines the physical, data-link, and transport layers of the interface, enabling high-speed, secure data transfer. It builds upon previous versions, including v1.1 which increased the top downlink line rate and added support for protocols like I2S, GPIO, embedded DP, SPI, and HDMI.
The standard supports up to four inline connectors and provides a deterministic delivery framework, similar to time-sensitive networking (TSN). It also supports Asymmetric Ethernet (ASA-MLE) and Application Stream Encapsulation Protocol (ASEPs) for Video, I2C, and Ethernet. A link layer security framework (ASAsec) is also included for secure communication.
Microchip's offering includes the VS775S single-port SerDes and VS776 multi-port hub, both supporting ASA-ML v2.1 and certified to ISO 26262 ASIL B and AEC-Q100 Grade 2. The VS775S can be configured as a serializer or a deserializer and includes on-chip non-volatile memory for external EEPROM-less camera configuration.
ASA Motion Link v2.1 is well-suited for automotive applications, particularly for sensors like cameras that send large amounts of data to the host but have minimal communication from host to sensor. With its high data rates, expanded protocol support, and robust security features, the updated standard promises to enhance data transfer efficiency and reliability in automotive and robotic systems.
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