Release 1.2 - 5 - USB Type-C Cable and
March 25, 2016 Connector Specification
Copyright © 2016 USB 3.0 Promoter Group. All rights reserved.
4.4.3
VCONN .............................................................................................................. 118
4.5 Configuration Channel (CC) .................................................................................... 120
4.5.1 Architectural Overview ............................................................................ 120
4.5.2 CC Functional and Behavioral Requirements .................................... 133
4.5.3 USB Port Interoperability Behavior ...................................................... 155
4.6 Power............................................................................................................................. 166
4.6.1 Power Requirements during USB Suspend ......................................... 167
4.6.2 VBUS Power Provided Over a USB Type-C Cable ............................... 168
4.7 USB Hubs ...................................................................................................................... 171
4.8 Chargers ........................................................................................................................ 171
4.8.1 DFP as a Power Source ............................................................................. 171
4.8.2 Non-USB Charging Methods .................................................................... 174
4.8.3 Sinking Host ................................................................................................. 174
4.8.4 Sourcing Device ........................................................................................... 174
4.8.5 Charging a System with a Dead Battery .............................................. 174
4.9 Electronically Marked Cables ................................................................................. 175
4.10 VCONN-Powered Accessories ................................................................................... 176
4.11 Parameter Values ....................................................................................................... 177
4.11.1 Termination Parameters .......................................................................... 177
4.11.2 Timing Parameters ..................................................................................... 179
4.11.3 Voltage Parameters .................................................................................... 181
5 Functional Extensions .......................................................................................................... 183
5.1 Alternate Modes ......................................................................................................... 183
5.1.1 Alternate Mode Architecture .................................................................. 183
5.1.2 Alternate Mode Requirements ............................................................... 183
5.1.3 Parameter Values ....................................................................................... 187
5.1.4 Example Alternate Mode – USB DisplayPort™ Dock ........................ 188
5.2 Managed Active Cables ............................................................................................. 190
5.2.1 Requirements for Managed Active Cables that respond to SOP’ and
SOP” ................................................................................................................ 190
5.2.2 Cable Message Structure .......................................................................... 192
5.2.3 Modal Cable Management ........................................................................ 192
A Audio Adapter Accessory Mode ........................................................................................ 194
A.1. Overview ...................................................................................................................... 194
A.2. Detail ............................................................................................................................. 194
A.3. Electrical Requirements .......................................................................................... 195
A.4. Example Implementations ...................................................................................... 197
A.4.1. Passive 3.5 mm to USB Type-C Adapter – Single Pole Detection
Switch ............................................................................................................. 197
A.4.2. 3.5 mm to USB Type-C Adapter Supporting 500 mA Charge-
Through ......................................................................................................... 197
B Debug Accessory Mode ........................................................................................................ 199
B.1. Overview ...................................................................................................................... 199
B.2. Functional .................................................................................................................... 199
