LFE3-MEZZ-EVN Lattice

HDMI Mezzanine Card Revision B Users Guide September 2012 Revision: EB55 01.1HDMI Mezzanine Card Revision B Users Guide Introduction LatticeECP3 Video Protocol Board includes a daughter card connection to support applications that can be imple- mented using SERDES. This daughter card connection includes three connectors for the signals of a whole SERDES quad, the control/status signals and the power/ground pins. The HDMI Mezzanine Card is a LatticeECP3 Video Protocol Board daughter card designed for demonstrating the Lattice HDMI/DVI solution using LatticeECP3 SERDES. The scope of this users guide covers only revision B of the HDMI Mezzanine Card. Please refer to EB52, LatticeECP3 Video Protocol Board Revision C Users Guide for more information about the LatticeECP3 device connection to the daughter card. As shown in Figure 1, this card uses Single-Link 19-pin HDMI Type-A connectors. If using passive HDMI-to-DVI cables, this card can also be used to support DVI video. Figure 1. HDMI Mezzanine Card Features Supports two different HDMI/DVI input paths, with or without the cable equalizer Supports HDMI/DVI output with TMDS level shifter TOSLINK fiber optic receiving module for S/PDIF audio input Headers for HPD, CEC controls and the EDID signals ESD protection devices for both HDMI/DVI inputs and HDMI/DVI outputs Functional Description There are four transmit channels and four receive channels in each of the LatticeECP3 SERDES quads. For imple- menting a Single Link HDMI or DVI interface, which includes three data channels and one clock channel, all four transmit channels and three receive channels are used. The clock channel on the receive side is connected to the dedicated SERDES differential reference clock pins. Since the common mode voltage of the HDMI/DVI TMDS sig- 2