Q7-974
Q7-974 User Manual - Rev. First Edition: 0.1 - Last Edition: 2.3 - Author: S.B. - Reviewed by G.G. Copyright © 2017 SECO S.r.l.
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3.2.3.9
Embedded Display Port (eDP) signals
As described in the previous paragraph, the Intel
®
Atom E38xx family of SOCs offer two multi-purpose Digital Display Interfaces, which allow the implementation of
HDMI/DVI, Display Port (DP) or embedded Display Port (eDP).
When the board is not configured with the eDP-to-LVDS bridge, the on the golden edge finger connector is available an eDP interface (derived from Intel
®
Atom
E38xx SOCs
’
Digital Display Interface #1), which allows supporting displays with a resolution up to 2560 x 1600 @ 60Hz.
Here following the signals related to eDP management:
e/eDP0_TX0-: eDP channel differential data pair #0.
e/eDP0_TX1-: eDP channel differential data pair #1.
e/eDP0_TX 2-: eDP channel differential data pair #2.
e/eDP0_TX3-: eDP channel differential data pair #3.
e/eDP0_AUX-: eDP channel differential auxiliary channel.
eDP0_HPD#: eDP channel Hot Plug Detect. Active Low Signal, +3.3V_S electrical level input with 100k
Ω
pull-up resistor.
LVDS_PPEN: +3.3V_S electrical level output, Panel Power Enable signal. It can be used to turn On/Off the connected display.
LVDS_BLEN: +3.3V_S electrical level output, Panel Backlight Enable signal. It can be used to turn On/Off the backlight
’
s lamps of connected display.
LVDS_BLT_CTRL: this signal can be used to adjust the panel backlight brightness in displays supporting Pulse Width Modulated (PWM) regulations.
