Appendix B: Extended Display Identification Data; Storing And Programming Edid Data - Xilinx Zynq-7000 User Manual

Extended Display Identification Data
The Extended Display Identification Data (EDID) protocol is a standardized means for a
display to communicate its operational characteristics, such as native resolution, to a source
device. This allows the source to generate the necessary video characteristics to match the
needs of the display. Because the source generates the necessary video characteristics, this
removes dependency on the user to configure the source and display device, thus reducing
the potential for incorrect settings and adjustments.

Storing and Programming EDID data

The EDID data bytes (stored as a part of the FSBL) are binary and are programmed by FSBL
logic into EDID RAM (ADV7611) during system initialization, for transmission to the video
source device. This EDID data is read by the video source, and video is output accordingly
by the source.
Contents of EDID data can be modified by the ADVANTIV EDID editor:
http://ez.analog.com/docs/DOC-2143
Zynq-7000 AP SoC ZC702 Base TRD
UG925 (v6.0) February 21, 2014
www.xilinx.com
Appendix B
55
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