![]() ![]() Automotive systems do not normally support USB 3.1 Gen2 connections due to cable length and proprietary automotive connectors. USB 3.2 enables such time-sensitive systems to support higher resolutions and/or higher frame rates. In these systems the process of capturing images, processing them and taking appropriate action, such as removing an item from a high-speed conveyor belt, is time sensitive. Industrial vision systems are facing similar issues, especially since they usually can’t use data compression. USB 3.2-based mass-storage devices, connected at 20Gbit/s, offer more than four times the throughput of USB 3.0 and can keep up with the latest SSDs. For example, USB 3.0 connections work well for mass-storage devices based on hard disk drives, but form a bottleneck for flash-based solid-state disks (SSD). Many common applications are already outgrowing the capabilities of USB 3.0. This article describes applications that benefit from the latest USB specification, explains the basics of USB 3.2, describes what to consider before implementing USB 3.2 technology in your next SoC design, and how USB Type-C connectors and cables are used in USB 3.2 systems. The 20Gbit/s data rate of USB 3.2 comes with its share of challenges. He was also member of technical staff at ST-Ericsson. Prior to joining Synopsys, Christiansen was a principal system designer at ST-Ericsson and Ericsson, designing mobile phone and modem chipsets for 19 years. Morten Christiansen is technical marketing manager for Synopsys’ DesignWare USB and DisplayPort IP. ![]()
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