conga-HDMI/DisplayPort adapter

Multiple Graphics Channel Adapter

The conga-HDMI/DisplayPort adapter provides DisplayPort and HDMI interfaces when used in conjunction with the conga-CEVAL and the conga-QEVAL and modules that support these interfaces.

The latest chipsets used on congatec COM Express™ and Qseven® modules not only provide LVDS and SDVO graphics interfaces but also the new generation of digital display interfaces such as HDMI and DisplayPort. 

High Definition Multimedia Interface (HDMI)

HDMI is a licensable compact audio/video connector interface for transmitting uncompressed digital streams. HDMI encodes the video data and audio data into TMDS for digital transmission and is fully backward-compatible with the single-link Digital Visual Interface (DVI) carrying digital video. Additionally, HDMI adds the ability to send up to 8 separate channels of uncompressed digital audio and auxiliary control data during the horizontal and vertical blanking intervals of the TDMS video stream.

DisplayPort (DP)

DP is an open industry standard digital display interface that is under development within the Video Electronics Standards Association (VESA). The DisplayPort specification defines a scalable digital display interface with optional audio and content protection capability. It defines a license-free, royalty-free, state-of-the-art digital audio/video interconnect intended to be used primarily between a computer and its display monitor.The conga-HDMI/DisplayPort is an adapter card for testing the new digital display interfaces (DDI) HDMI and DisplayPort on COM Express modules™. The conga-HDMI/DisplayPort adapter allows the connection of HDMI and DisplayPort devices to COM Express™ and Qseven® systems supporting the new DDIs on the PEG port (conga-CEVAL) or ADD2 slot (conga-QEVAL) pins. The concept is pretty much the same as with ADD2 cards, which are used to connect 3rd party transmitters to Intel®’s SDVO interface. As with HDMI and DP, the SDVO interface is also multiplexed with the PCI Express graphics port for COM Express™ Type 2 moudules.

For more information, refer to congatec Application Note 17 “HDMI and DisplayPort Implementation” that can be found on the congatec website. This document also describes how to enable HDMI and DisplayPort in the BIOS setup program.