Setup
5.3.3.9
Configuration ID 8: Thunderbolt Desktop/Add-in Card
Table 11. Configuration ID 8
5.3.3.9.1
Overview
The TPS65982-EVM will boot up and initialize into configuration ID 8 when the switches [B0], [B1], and
[B2] on switch bank S1 are pushed to the left-hand side and switch [B3] on switch bank S1 is pushed to
the right-hand side. Configuration ID 8 is designed to model a Thunderbolt Desktop/Add-in Card
application.
A TPS65982-EVM configured as a desktop is capable of providing (sourcing) power. The fully-featured
Type-C port can be a downstream-facing port (DFP) for DisplayPort video and Thunderbolt Alternate
Mode video+data, which is also emulated by this EVM configuration.
5.3.3.9.2
Source Capabilities
This configuration is capable of negotiating PD contracts to source 5 V at 3 A through the PP_5V0 internal
FET path and 12 V at 3 A through the PP_HV internal FET path.
5.3.3.9.3
Sink Capabilities
This configuration is capable of negotiating a PD contract to sink 5 V at 0 A.
5.3.3.9.4
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).
5.3.3.9.5
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 for providing power and entering DisplayPort alternate mode.
22
TPS65982 Evaluation Module
SLVUAF8C – June 2015 – Revised November 2015
Copyright © 2015, Texas Instruments Incorporated
