Setup
5.3.3.6
Configuration ID 5: Docking System with Thunderbolt Mode Capabilities
Table 8. Configuration ID 5
5.3.3.6.1
Overview
The TPS65982-EVM will boot up and initialize into configuration ID 5 when the 1
st
and 3
rd
DIP switches
[B0] and [B2] on switch bank S1 are pushed to the right-hand side and the 2
nd
, and 4
th
DIP switches [B1]
and [B3] on switch bank S1 is pushed to the left-hand side. Configuration ID 5 is designed to model a
Thunderbolt docking system application.
A TPS65982-EVM configured as a dock is capable of providing (sourcing) power. The fully-featured Type-
C port of a dock which faces a monitor can be a downstream-facing port (DFP) for DisplayPort video and
Thunderbolt Alternate Mode video+data, which is also emulated by this EVM configuration. This
configuration will initiate a PD power role swap to source.
5.3.3.6.2
Source Capabilities
This configuration is capable of negotiating PD contracts to source 5 V at 3 A through the PP_5V0 internal
FET path, 12 V at 3 A through the PP_HV internal FET path, and 20 V at 5 A through the PP_EXT
external FET path.
5.3.3.6.3
Sink Capabilities
This configuration is capable of negotiating a PD contract to sink 5 V at 0 A.
5.3.3.6.4
Video Capabilities
This configuration is capable of negotiating a USB PD Thunderbolt Alternate Mode contract for video+data
as a downstream-facing port (DFP). This configuration is also capable of negotiating a USB PD alternate
mode contract for DisplayPort video as a downstream-facing port (DFP). An alternate mode contract will
only be negotiated successfully when connected to a product which is capable of Thunderbolt Alternate
Mode or DisplayPort video as an upstream-facing port (UFP).
5.3.3.6.5
Ideal Connections
This configuration pairs ideally with a TPS65982-EVM using configuration ID 2 for providing power and
entering Thunderbolt Alternate Mode for video+data. This configuration is also compatible with a
TPS65982-EVM using configuration ID 4 entering DisplayPort alternate mode. These TPS65982-EVM
configurations respectively emulate notebook and charger-adapter applications and the same performance
is expected when connected to actual applications of these products.
19
SLVUAF8C – June 2015 – Revised November 2015
TPS65982 Evaluation Module
Copyright © 2015, Texas Instruments Incorporated
