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USB Type-C Spec. R1.1 Introduction

Topic Motivation Overview Mechanical Functional Functional Extensions Audio Adapter Accessory Mode

Motivation Existing USB host connector was too large: Met smaller, thinner and lighter form-factors trend.

Enhance USB connector robustness & usability. Met the usability and robustness requirements for

newer platform. Exiting connector are difficult to use: Enhance ease of use for user confusion for plug and

cable orientation. The USB cable/connector ecosystem is moving

forward to address the emerging form-factor/ID design trends with the new USB Type-C Connector Extending and advancing USB as the peripheral

connection of choice.

Overview This specification defines the USB Type-C™

receptacles, plug and cables. Mechanical definition. Power Consumption Spec. Electrical Characteristics. Compatible with existing USB interface electrical

and functional specifications. Functional behavior. (CC, Connection States) Extend Functional behavior. (Alternate modes)

Overview USB Type-C Architecture

Overview Key Features: Entirely new design Total 24 pins number for full feature

Smaller Size Connector Receptacle opening: 8.34mmx2.56mm

Usability Enhancement Reversible plug orientation & cable direction

Support Scalable Power Charging PD capacity: 3A for standard cables, 5A for connectors.

Improved EMI & RFI mitigation Internal Spring, Pads & Shielding

Alternate mode support Alternate mode support

Role swapping support PR_Swap, DR_Swap, VCONN_Swap

Mechanical Cable Plug Form Factors

Mechanical Connector Interface Pin-out

Overview Connector Interface Pin definition

Mechanical Cable Construction

Power Consumption Summary of Power Spec.

Power Consumption Power Spec. for Type-C cable

Power Consumption Power Spec. for Legacy cable

Power Consumption Power Spec. for Legacy Adapter

Mechanical Different type Cable Assembly Full-Featured Type-C Cable USB 2.0 Type-C Cable USB Type-C Captive Cable Legacy Cable Assemblies Legacy Adapter Assemblies

Mechanical Full-Featured Type-C Cable Assembly

Mechanical USB 2.0 Type-C Cable Assembly

- W/O SSTx/SSRx, SBUx wires

Mechanical USB Type-C Captive Cable Assembly

A captive cable Captive Cable assembly is a cable assembly that is terminated on one end with a USB Type-C plug and has a vendor-specific connect means (hardwired or custom detachable) on the opposite end. The cable assembly that is hardwired is not detachable from the device.

The assembly wiring for captive USB Type-C cables follow the same wiring assignments as the standard cable assemblies (see Table 3-10 and Table 3-11) with the exception that the hardwired attachment on the device side substitutes for the USB Type-C Plug #2 end.

The CC wire in a captive cable shall be terminated and behave as appropriate to the function of the product to which it is captive (e.g. host or device).

Mechanical Legacy Cable Assemblies USB Type-C to USB 3.1 Standard-A Cable Assembly

Mechanical Legacy Cable Assemblies USB Type-C to USB 2.0 Standard-A cable assembly

Mechanical Legacy Cable Assemblies USB Type-C to USB 3.1 Standard-B cable assembly

Mechanical Legacy Cable Assemblies USB Type-C to USB 2.0 Standard-B cable assembly

Mechanical Legacy Cable Assemblies USB Type-C to USB 2.0 Mini-B cable assembly

Mechanical Legacy Cable Assemblies USB Type-C to USB 3.1 Micro-B cable assembly

Mechanical Legacy Cable Assemblies USB Type-C to USB 2.0 Micro-B cable assembly

Mechanical Legacy Adapter Assemblies USB Type-C to USB 3.1 Standard-A receptacle adapter

assembly

Mechanical Legacy Adapter Assemblies USB Type-C to USB 2.0 Micro-B receptacle adapter

assembly

Mechanical Five types Receptacle Vertical Mount Receptacle Dual-Row SMT Right Angle Receptacle Hybrid Right-Angle Receptacle Mid-Mount Dual-Row SMT Receptacle Mid-Mount Hybrid Receptacle

Plug Interface Dimension

Mechanical Vertical Mount Receptacle

Mechanical Dual-Row SMT Right Angle Receptacle

Mechanical Hybrid Right-Angle Receptacle

Mechanical Mid-Mount Dual-Row SMT Receptacle

Mechanical Mid-Mount Hybrid Receptacle

Mechanical Plug Interface Dimensions

Mechanical Plug Interface Dimensions

Mechanical Plug Interface Dimensions

Mechanical EMC improvement (spring and pad)

The shield of Cable should be physically connected to the plug metal shell as close to 360° as possible, to control EMC.

Mechanical EMC improvement

Mechanical EMC improvement

Electrical Characteristics Electrical Characteristics Raw Cable Connector Cable Assemble

Electrical Characteristics Raw Cable The differential characteristic impedance for shielded

differential pairs is recommended to be 90 Ω ± 5 Ω. The single-ended characteristic impedance of coaxial

wires is recommended to be 45 Ω ± 3 Ω. The impedance should be evaluated using a 200 ps

(10%-90%) rise time; a faster rise time is not necessary for raw cable since it will make cable test fixture discontinuities more prominent.

Electrical Characteristics Raw Cable Intra-Pair Skew Differential Insertion Loss

Electrical Characteristics Mated Connector Differential Impedance Differential Insertion Loss Differential Return Loss Differential Near-End and Far-End Crosstalk between

SuperSpeed Pairs Differential Crosstalk between D+/D− and SuperSpeed

Pairs Differential-to-Common-Mode Conversion

Electrical Characteristics Cable Assemble USB Type-C to Type-C Passive Cable Assemblies USB Type-C to Legacy Cable Assemblies USB Type-C to USB Legacy Adapter Assemblies Shielding Effectiveness Requirements DC Electrical Requirements

Functional Signal Pins Definition Sideband Use Power and Ground Configuration Channel Power USB Hubs Chargers Electronically Marked Cables VCONN-Power Accessories

Functional Signal Pins

Functional Power and Ground IR Drop

Functional Power and Ground VBUS

Max voltage is 5.5V for legacy devices due to higher currents allowed.

Support Rp method of connection detection, must provide an impedance between VBUS and GND on receptacle pin.

Functional Power and Ground VCONN

For Electronically Marked Cable only

Functional Power and Ground VCONN

Functional Configuration Channel Purposes (Configuration process)

Detect attach of USB ports, e.g. a DFP to a UFP Detect Attach and Detach

Resolve cable orientation and twist connections to establish USB data bus routing Detect Orientation

Establish DFP and UFP roles between two attached ports Detect Source/Sink

Discover and configure VBUS: USB Type-C Current modes or USB Power Delivery Current Rating setting

Configure VCONN Repurpose as VCONN

Discover and configure optional Alternate and Accessory modes PD Comm.(BMC)

USB Device Enumeration Bus detecting, identifying and configuring USB device

Functional Configuration Channel Purposes Detect attach of USB ports, e.g. a DFP to a UFP

Functional Configuration Channel Purposes Detect attach of USB ports, e.g. a DFP to a UFP

Functional Configuration Channel Purposes Detect attach of USB ports, e.g. a DFP to a UFP

Functional Configuration Channel Purposes Detect attach of USB ports, e.g. a DFP to a UFP

Functional Configuration Channel Purposes Detect attach of USB ports, e.g. a DFP to a UFP

Functional Configuration Channel Purposes Establish DFP and UFP roles between two

attached ports

Functional Configuration Channel Purposes Establish DFP and UFP roles between two

attached ports

Functional Configuration Channel Purposes Establish DFP and UFP roles between two

attached ports

Functional Configuration Channel Purposes DFP and UFP roles

Functional Configuration Channel Purposes DFP and UFP roles Disabled State Requirement for UFP. The port shall not drive VBUS or VCONN, and shall

present a high-impedance to ground (above zOPEN) on its CC pins.

Functional Configuration Channel Purposes

Resolve cable orientation and twist connections to establish USB data bus routing

Un-flipped straight through – Position ① to Position ①

Functional Configuration Channel Purposes

Resolve cable orientation and twist connections to establish USB data bus routing

Un-flipped twisted through – Position ① to Position ②

Functional Configuration Channel Purposes

Resolve cable orientation and twist connections to establish USB data bus routing

Flipped straight through – Position ② to Position ②

Functional Configuration Channel Purposes

Resolve cable orientation and twist connections to establish USB data bus routing

Flipped through – Position ② to Position ①

Functional Configuration Channel Purposes

Direct Connect Device Un-flipped – Position ①

Functional Configuration Channel Purposes

Direct Connect Device Flipped – Position ②

Functional Configuration Channel Purposes USB Type-C Port Interoperability

Functional Configuration Channel Purposes DRP – Capable of either DFP or UFP

Functional Configuration Channel Purposes DRP Timing Until a specific stable state is established, the DRP

alternates between exposing itself as a DFP and UFP.

Functional Configuration Channel Purposes Three USB Power Delivery Swap Command

Functional Configuration Channel Purposes Connection State Diagram: Source / Sink

Functional Configuration Channel Purposes Connection State Diagram: Sink with Accessory

Support

Functional Configuration Channel Purposes Connection State Diagram: DRP

Functional Configuration Channel Purposes Connection State Diagram: DRP with Accessory

and Try.SRC support

Functional Configuration Channel Purposes Each Connection States behavior

Functional Configuration Channel Purposes Connection States Summary

Functional Configuration Channel Purposes USB Port Interoperability Behavior USB Type-C Port to USB Type-C Port

Functional Configuration Channel Purposes USB Port Interoperability Behavior USB Type-C Port to USB Type-C Port

Functional Configuration Channel Purposes USB Port Interoperability Behavior USB Type-C Port to USB Type-C Port

Functional Configuration Channel Purposes USB Port Interoperability Behavior USB Type-C Port to USB Type-C Port

Functional Configuration Channel Purposes USB Port Interoperability Behavior USB Type-C Port to USB Type-C Port

Functional Configuration Channel Purposes USB Port Interoperability Behavior USB Type-C Port to USB Type-C Port

Functional Configuration Channel Purposes USB Port Interoperability Behavior USB Type-C Port to USB Type-C Port

Functional Configuration Channel Purposes USB Port Interoperability Behavior USB Type-C port to Legacy Port

Functional Configuration Channel Purposes USB Port Interoperability Behavior USB Type-C port to Legacy Port

Functional Configuration Channel Purposes USB Port Interoperability Behavior USB Type-C port to Legacy Port

Functional Configuration Channel Purposes USB Port Interoperability Behavior USB Type-C port to Legacy Port

Functional Power Precedence of power source usage VBUS Power Provided Over a USB Type-C Cable, VBUS shall

be tolerant up to 20 V. VCONN-powered accessories shall be able to operate over

a range of 2.7 V to 5.5 V on VCONN. Electronically marked cables shall draw no more than 7.5

mA from VCONN during USB suspend.

Functional Power Precedence of power source usage USB PD Bi-phase Mark Coded (BMC) on CC. Supporting USB PD BFSK(BinaryFrequencyShiftKeying)

for USB Type-C to legacy cables and adapters on VBUS.

Functional Chargers DFP as a Power Source Chargers with USB Type-C Receptacles Chargers with USB Type-C Captive Cables

Non-USB Charging Methods Sinking DFP Charging UFP Charging a System with a Dead Battery

Functional Electronically Marked Cables Electronically Marked Cable with VCONN connected

through the cable

Functional Electronically Marked Cables Electronically Marked Cable with SOP’at both

ends

Functional Others SBU

Functional USB Type-C Port types list DFP (host-mode) or UFP (device-mode) Sourcing (Rp) or sinking (Rd) VBUS

Data capable or not Sourcing VCONN

Functional USB Type-C Port types list (16 states)

Functional Extensions (Optional) Alternate Modes Alternate Mode Architecture Alternate Mode Pin Reassignment Alternate Mode Electrical Requirements Parameter Values USB/PCIe Dock Example

Managed Active Cables Managed Active Cable Connection Respond to SOP’ and SOP” Parameter Values Cable Message Structure

Functional Extensions (Optional) Alternate Modes Alternate Mode Architecture The Structured VDMs(Vendor Defined Messages) consist

of a request followed by a response. The response is either a successful completion of the request (ACK), an indication that the device needs time before it can service a request (BUSY), or a rejection of the request (NAK). A host and device do not enter a mode when either a NAK or BUSY is returned.

Functional Extensions (Optional) Alternate Modes Alternate Mode Architecture (Entry/Exist) SVID and Mode

Functional Extensions (Optional) Alternate Modes Alternate Mode Architecture The USB Power Delivery Structured VDMs are defined to

extend the functionality a device exposes.

DP &DP & MHL had implemented by VESAMHL had implemented by VESAThunderBoltThunderBolt 3 had implemented by 3 had implemented by IntelIntel

Functional Extensions (Optional) Alternate Modes Alternate Mode Pin Reassignment The pins that shall be reconfigured. (Yellow pins)

Functional Extensions (Optional) Alternate Modes Alternate Mode Electrical Requirements

Functional Extensions (Optional) Alternate Modes Parameter Values

Functional Extensions (Optional) Alternate Modes USB/PCIe Dock Example

Functional Extensions (Optional) Managed Active Cables Managed Active Cable Connection

Functional Extensions (Optional) Managed Active Cables Respond to SOP’ and SOP” – from PD

Functional Extensions (Optional) Managed Active Cables Modal Cable Management Discover SVIDs Discover Modes Enter Mode Exit Mode

Functional Extensions (Optional) Managed Active Cables USB PD E-markers I.C had Certification List till

now.

Audio Adapter Accessory Mode Feature The four analog audio signals are the same as

those used by a traditional 3.5 mm headset jack. The audio adapter architecture allows for an

audio peripheral to provide up to 500 mA back to the system for charging.

Audio Adapter Accessory Mode USB Type-C Analog Audio Pin Assignments

Audio Adapter Accessory Mode Examples

Audio Adapter Accessory Mode Examples

Reference USB Type-C Spec. R1.1 USB PD Spec. R2.0 V1.1 Intel IDF15 HSTS003 file

Q & A