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USB Promoter Group Announces USB4 Specification % R; G) G. m* p
Specification defines next generation USB protocolarchitecture and doubling bandwidth to extend USB Type-C™ peRFormance
" ~4 D4 t. Q6 _9 gBEAVERTON, Ore.--(BUSINESS WIRE)--TheUSB Promoter Group today announced the pending release of the USB4specification, a major update to deliver the next generation USB architecturethat compliments and builds on the existing USB 3.2 and USB 2.0 architectures.The USB4 architecture is based on the Thunderbolt™ protocol specificationrecently contributed by Intel Corporation. It doubles the bandwidth of USB andenables multiple simultaneous data and display protocols. l+ V! {) N- w1 F! Y% z- U
“USB4’s high throughput and advancedfeatures enable new scenarios in consumer, enterprise, and intelligent edgemarkets, while maintaining interoperability with existing USB and Thunderbolt 3devices” 6 w: Z! [ y" K
The new USB4 architecture defines amethod to share a single high-speed link with multiple end device typ ESDynamically that best serves the transfer of data by type and application. Asthe USB Type-C™ connector has evolved into the role as the external displayport of many host products, the USB4 specification provides the host theability to optimally scale allocations for display data flow. Even as the USB4specification introduces a new underlying protocol, compatibility with existingUSB 3.2, USB 2.0 and Thunderbolt 3 hosts and devices is supported; the resultingconnection scales to the best mutual capability of the devices being connected.
“The primary goal of USB is to deliverthe best user experience combining data, display and power delivery over auser-friendly and robust cable and connector solution,” said Brad Saunders, USBPromoter Group Chairman. “The USB4 solution specifically tailors bus operationto further enhance this experience by optimizing the blend of data and displayover a single connection and enabling the further doubling of performance.” 5 a) O! A: Z6 b) m% M; E& K
Key characteristics of the USB4 solutioninclude: + N( m3 y5 ]. J/ S9 ?
· Two-lane operation using existing USBType-C cables and up to 40 Gbps operation over 40 Gbps-certified cables ! R0 @6 R5 Q4 ~5 t7 E0 V: [5 Q
· Multiple data and display protocols toefficiently share the total available bandwidth over the bus 5 i% z. q# V% [- ]) }' j" }
· Backward compatibility with USB 3.2, USB2.0 and Thunderbolt 3 6 J( l1 c/ S9 u* ?
With over 50 companies activelyparticipating in the final stages of review of the draft specification, theUSB4 specification is on track to be published around the middle of 2019.Coincident with the release of the USB4 specification, the release of anupdated USB Type-C Specification will be made to comprehend USB4 bus discovery,configuration and performance requirements. % @+ z9 U/ M+ J' A
USB Developer Days 2019, in the secondhalf of this year, will include detailed technical training covering the USB4specification and the latest for USB Type-C, USB Power Delivery, and otherexciting topics.
+ `5 H6 @% {- \4 l0 q1 s$ BThis update is part of the USBperformance roadmap and is specifically targeted to developers at this time.Branding and marketing guidelines will be established after the finalspecification is published. 1 ^7 m) P/ x$ e0 p m5 X2 H
“Releasing the Thunderbolt protocolspecification is a significant milestone for making today’s simplest and most versatileport available to everyone,” said Jason Ziller, General Manager, ClientConnectivity Division at Intel. “By collaborating with the USB Promoter Group,we’re opening the doors for innovation across a wide range of devices andincreasing compatibility to deliver better experiences to consumers.”
. q) Y3 ?3 o9 b7 y) k% `- g8 l“USB4’s high throughput and advancedfeatures enable new scenarios in consumer, enterprise, and intelligent edgemarkets, while maintaining interoperability with existing USB and Thunderbolt 3devices,” said Roanne Sones, Corporate Vice President, Microsoft OS Platforms.“We are excited to work with our partners in the ecosystem to bring USB4 tomarket and showcase its benefits.”
7 \0 K3 A% I5 u( E) k2 OAbout the USB Promoter Group * J! J, ^- D8 z7 ~ `3 M: C
The USB Promoter Group, comprised ofApple Inc., Hewlett-Packard Inc., Intel Corporation, Microsoft Corporation,Renesas Electronics Corporation, ST Microelectronics, and Texas Instruments,continues to develop the USB family of specifications to meet the market needsfor increased functionality and performance of USB solutions. Additionally, theUSB Promoter Group develops specification addendums (USB Power Delivery, USBType-C™, and others) to extend or adapt its specifications to support moreplatform types or use cases where adopting USB technology will be beneficial indelivering a more ubiquitous, richer user experience. 6 e! ~( s6 m& e" c& l* k
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发表于 2019-4-12 11:18
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