In die­ser Sek­ti­on wer­den Pres­se­mit­tei­lun­gen der Her­stel­ler 1:1 ver­öf­fent­licht. Pla­net 3DNow! über­nimmt weder für die Rich­tig­keit der Anga­ben noch für die Art der For­mu­lie­rung jed­we­de Ver­ant­wor­tung. Die Anga­ben kön­nen sub­jek­tiv sein und geben nicht not­wen­di­ger­wei­se die Mei­nung der auf Pla­net 3DNow! schrei­ben­den Autoren wieder.

USB 3.0 Promoter Group Announces Power and Device Class Specifications to Support Development of USB Type‑C Ecosystem

Verfasst vonDr@

USB Power Deli­very v2.0 and USB Bill­board Device Class v1.0 spe­ci­fi­ca­ti­ons enable USB Type‑C Alter­na­te Modes

Bea­ver­ton, OR. – Sep­tem­ber 9, 2014 – The USB 3.0 Pro­mo­ter Group today announ­ced the release of the USB Power Deli­very v2.0 and USB Bill­board Device Class v1.0 spe­ci­fi­ca­ti­ons. The­se spe­ci­fi­ca­ti­ons are available for down­load from the USB-IF web­site http://www.usb.org/developers/docs.

The USB Type‑C spe­ci­fi­ca­ti­on defi­nes Func­tion­al Exten­si­ons that enable USB Type‑C hosts and devices to sup­port optio­nal capa­bi­li­ties. The Func­tion­al Exten­si­ons include Alter­na­te Modes, an opti­on that per­mits a ven­dor or stan­dards orga­niza­ti­on to uti­li­ze the USB Type‑C cable and con­nec­tor and pro­vi­de addi­tio­nal fea­tures. Ven­dors or stan­dards orga­niza­ti­ons that deve­lop USB Type‑C Alt Modes will be requi­red to obtain a stan­dard or ven­dor ID (SVID) assi­gned by the USB Imple­ment­ers Forum (USB-IF). Both the USB Power Deli­very v2.0 and the USB Bill­board Device Class v1.0 spe­ci­fi­ca­ti­ons are essen­ti­al for the deve­lo­p­ment and imple­men­ta­ti­on of Alter­na­te Modes.

“To sup­port the recent release of the USB Type‑C spe­ci­fi­ca­ti­on, we are edu­ca­ting ever­yo­ne in the indus­try from OEMs to con­su­mers about all of the pos­si­bi­li­ties USB Type‑C offers,” said Jeff Raven­craft, USB-IF Pre­si­dent and COO. “The­se new spe­ci­fi­ca­ti­ons pro­vi­de neces­sa­ry resour­ces for the deve­lo­p­ment of USB Type‑C Alt Modes. The USB-IF is also in the pro­cess of defi­ning joint iden­ti­fi­ca­ti­on gui­de­lines to ensu­re con­su­mers can easi­ly reco­gni­ze what capa­bi­li­ties a USB Type‑C capa­ble host or device supports.”

USB Power Deli­very v2.0 Specification 

The USB Power Deli­very (PD) v2.0 spe­ci­fi­ca­ti­on updates the USB PD v1.0 spe­ci­fi­ca­ti­on to meet the requi­re­ments of the USB Type‑C spe­ci­fi­ca­ti­on and to incor­po­ra­te addi­tio­nal chan­ges. If a USB Type‑C host or device sup­ports Alter­na­te Modes, the host and device will use USB Power Deli­veryS­truc­tu­red Ven­dor Defi­ned Mes­sa­ges (Struc­tu­red VDMs) to dis­co­ver, con­fi­gu­re and enter/exit Alter­na­te Modes. The USB Power Deli­very Struc­tu­red VDMs are defi­ned to extend the func­tion­a­li­ty a device expo­ses. Only Struc­tu­red VDMs shall be used to alter the USB func­tion­a­li­ty or recon­fi­gu­re the pins the USB Type‑C con­nec­tor expo­ses. Struc­tu­red VDMs pro­vi­de a stan­dard method to iden­ti­fy the Alter­na­te Modes a device sup­ports and to com­mand the device to enter and exit an Alter­na­te Mode. The use of Struc­tu­red VDMs are in addi­ti­on to the nor­mal USB PDmes­sa­ges used to mana­ge power. Mul­ti­ple Alter­na­te Modes may exist and/or func­tion concurrently.

USB Bill­board Device Class Specification 

The USB Bill­board Device Class spe­ci­fi­ca­ti­on out­lines the methods used to com­mu­ni­ca­te if an Alter­na­te Mode is sup­port­ed by a USB Type‑C capa­ble host or device. In par­ti­cu­lar, if a device fails to suc­cessful­ly enter an Alter­na­te Mode then the device will mini­mal­ly expo­se a USB 2.0Billboardinterface powered by VBUS.

About the USB 3.0 Pro­mo­ter Group 

The USB 3.0 Pro­mo­ter Group, com­pri­sed of Hew­lett-Packard Com­pa­ny, Intel Cor­po­ra­ti­on, Micro­soft Cor­po­ra­ti­on, Rene­sas Elec­tro­nics, STMi­croelec­tro­nics and Texas Instru­ments, deve­lo­ped the USB 3.1 Spe­ci­fi­ca­ti­on that was released in July 2013. In addi­ti­on to main­tai­ning and enhan­cing this spe­ci­fi­ca­ti­on, the USB 3.0 Pro­mo­ter Group deve­lo­ps spe­ci­fi­ca­ti­on adden­dums to extend or adapt its spe­ci­fi­ca­ti­ons to sup­port more plat­form types or use cases whe­re adop­ting USB 3.1 tech­no­lo­gy will be bene­fi­ci­al in deli­ve­ring a more ubi­qui­tous, richer user experience.

About the USB-IF 

The non-pro­fit USB Imple­ment­ers Forum, Inc. was for­med to pro­vi­de a sup­port orga­niza­ti­on and forum for the advance­ment and adop­ti­on of USB tech­no­lo­gy as defi­ned in the USB spe­ci­fi­ca­ti­ons. The USB-IF faci­li­ta­tes the deve­lo­p­ment of high-qua­li­ty com­pa­ti­ble USB devices through its logo and com­pli­ance pro­gram, and pro­mo­tes the bene­fits of USB and the qua­li­ty of pro­ducts that have pas­sed com­pli­ance test­ing. Fur­ther infor­ma­ti­on, inclu­ding pos­tings of the most recent pro­duct and tech­no­lo­gy announce­ments, is available by visi­ting the USB-IF web­site at www.usb.org.