SM-C93
SM-C93 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R - Reviewed by M.B. - Copyright © 2021 SECO S.p.A.
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3.2.1.1
LCD Display Support Signals
The Intel
®
family of SOCs formerly coded as Elkhart Lake offers signal for direct driving of a panel and its display
’
s backlight: enabling signals for panel (LCD0_VDD_EN)
and backlight ( LCD0_BKLT_EN), Backlight Brightness Control signal (LCD0_BKLT_PWM). These signals have an electrical of +1.8V_RUN, so they will be
adapted/level shifted by the carrier board for external use.
There are also the signals necessary for driving I2C Data and Clock lines of LCD EDID EEPROM.
The panel control signals are:
LCD0_VDD_EN: Panel #0 Panel enable signal. Active high signal, +1.8V_RUN electrical level Output.
LCD0_BKLT_EN: Panel #0 Panel Backlight Enable signal. It can be used to turn On/Off the backlight
’
s lamps of a connected LVDS display. Active high signal,
+1.8V_RUN electrical level Output.
LCD0_BKLT_PWM: This signal can be used to adjust the Panel #0 backlight brightness in displays supporting Pulse Width Modulated (PWM) regulations.
+1.8V_RUN electrical level Output.
I2C_LCD_DAT: LCD I2C Data. This signal is used to read the LCD display EDID EEPROM. +1.8V_RUN electrical level with a 2.2k
Ω
pull-up resistor.
I2C_LCD_CLK: LCD I2C Clock: This signal is used to read the LCD display EDID EEPROM. +1.8V_RUN electrical level with a 2.2k
Ω
pull-up resistor.
Please refer to the following schematics as an example of implementation for LCD and backlight support signals driving conn voltage level shifters on the
carrier board.
All schematics (henceforth also referred to as material) contained in this manual are provided by SECO S.p.A. for the sole purpose of
or activity and
disclaims all warranties and conditions with regard to said material, including but not limited to, all expressed or implied warranties and
conditions of merchantability, suitability for a specific purpose, title and non-infringement of any third party intellectual property rights.
The customer acknowledges and agrees to the conditions set forth that these schematics are provided only as an example and that he will
conduct an independent analysis and exercise judgment in the use of any and all material. SECO declines all and any liability for use of this
