Release 1.0 - 5 - USB Type-C Cable and
August 11, 2014 Connector Specification
Copyright © 2014 USB 3.0 Promoter Group. All rights reserved.
4.4.3 VCONN .............................................................................................................. 103
4.5 Configuration Channel (CC) .................................................................................... 104
4.5.1 Architectural Overview ............................................................................ 104
4.5.2 CC Functional and Behavioral Requirements .................................... 115
4.5.3 USB Port Interoperability Behavior ...................................................... 131
4.6 Power............................................................................................................................. 140
4.6.1 Power Requirements during USB Suspend ......................................... 141
4.6.2 VBUS Power Provided Over a USB Type-C Cable ............................... 142
4.6.3 Supporting USB PD BFSK in Addition to USB PD BMC .................... 144
4.7 USB Hubs ...................................................................................................................... 145
4.8 Chargers ........................................................................................................................ 145
4.8.1 DFP as a Power Source ............................................................................. 145
4.8.2 Non-USB Charging Methods .................................................................... 146
4.8.3 Charging UFP ............................................................................................... 147
4.8.4 Charging a System with a Dead Battery .............................................. 147
4.9 Electronically Marked Cables ................................................................................. 147
4.10 VCONN-Powered Accessories ................................................................................... 148
4.11 Parameter Values ....................................................................................................... 149
4.11.1 Termination Parameters .......................................................................... 149
4.11.2 Timing Parameters ..................................................................................... 151
4.11.3 Voltage Parameters .................................................................................... 153
4.12 Summary of Ports by Product Type ..................................................................... 155
5 Functional Extensions .......................................................................................................... 157
5.1 Alternate Modes ......................................................................................................... 157
5.1.1 Alternate Mode Architecture .................................................................. 157
5.1.2 Alternate Mode Requirements ............................................................... 157
5.1.3 Parameter Values ....................................................................................... 159
5.1.4 Example Alternate Mode – USB/PCIe Dock ........................................ 160
5.2 Managed Active Cables ............................................................................................. 162
5.2.1 Requirements for Managed Active Cables that respond to SOP’ and
SOP” ................................................................................................................ 162
5.2.2 Cable Message Structure .......................................................................... 164
5.2.3 Modal Cable Management ........................................................................ 164
A Audio Adapter Accessory Mode ........................................................................................ 166
A.1. Overview ...................................................................................................................... 166
A.2. Detail ............................................................................................................................. 166
A.3. Electrical Requirements .......................................................................................... 167
A.4. Example Implementations ...................................................................................... 169
A.4.1. Passive 3.5 mm to USB Type-C Adapter – Single Pole Detection
Switch ............................................................................................................. 169
A.4.2. 3.5 mm to USB Type-C Adapter Supporting 500 mA Charge-
Through ......................................................................................................... 169
B Debug Accessory Mode ........................................................................................................ 171
