USB Type-C and You.pdf

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1、#EMBEDDEDOSSUMMITUSB Type-C and YouTurning your product concept into implementation necessitiesSam Hurst,GoogleGithub ID:sambhurstDiana Zigterman,GoogleGithub ID:DianaZigPort Role RecapSpecification RequirementsCreating a New Sink DeviceContents#EMBEDDEDOSSUMMITPort Role RecapFor more details,see la

2、st years USB-C Power Delivery OverviewPort Role RecapPower RoleData RoleVconn RoleSourceSupplies powerDFPActs as USB Host or Hub Downstream PortControls alternate mode entrySourceSupplies Vconn to the Electronically Marked CableCommunicates with the Electronically Marked CableSinkConsumes powerUFPAc

3、ts as USB DeviceOffMay not communicate with the cable#EMBEDDEDOSSUMMITSpecification RequirementsUSB Type-C Specificationhttps:/usb.org/document-library/usb-type-cr-cable-and-connector-specification-release-22 Goto spec for valid voltage ranges,connect and disconnect timings,TBT alternate mode specif

4、icsUSB Power Delivery Specificationhttps:/usb.org/document-library/usb-power-deliveryGoto spec for minimum PD requirements and features to exploreUSB Compliance specifications also available on usb.orgAccessing the SpecificationsWhat do you want to connect to?Think through all the things your custom

5、er might think they can plug inRoles:Which of these USB Type-C states apply to me?Accessory modes?Debug accessoryGenerally only useful if your product has a specific debug accessory you use with itAudio accessoryRarely used in industryTry states?Primarily useful if you or your partner doesnt support

6、 Power DeliveryDefinite“yes”if your port can function as both a host and deviceRoles:Am I“Dual Role Data”?Also required if you will be using PD DR_Swap messagesBecause youd like to use a non-default role combination(sink/DFP)Or because youre dual-role power with a preferred data roleNote for DR swap