EVB-VF522R3 Platform User’s Guide, Rev. 0, 11/2014
Freescale Semiconductor, Inc.
21
Video interfaces
12 Video interfaces
The EVB has camera input connectors as well as a DCU daughtercard connector, e.g. for connecting a
display daughtercard.
12.1
Video inputs (P2 to P5)
There are four RCA “Phono” connectors routed to the MCU Video ADC inputs 0 to 3. They allow direct
connection to a video source (camera, etc.) in a composite video format.
Figure 22. Video input
As illustrated on the Video Input 0 example in
, the impedance-matching circuit can be also used
signal attenuation if zero resistance of the “short” footprint is replaced with a non-zero value and the R512
value lowered accordingly while keeping their sum equal 75 Ohms for matching with the 75-Ohm video
cable plugged into P2.
12.2
Graphical device interface (P20)
A 120-pin connector P20 features a graphical device interface as well as various auxiliary signals. Thanks
to its unified type and pinout, it matches:
•
The Freescale TFT LCD daughtercards, e.g., the 7-inch LCD-WVGA-7IN-1 one,
•
The Freescale HDMI daughtercards, e.g., MCIMXHDMICARD shown in
.
Figure 23. HDMI daughtercard
