Embedded Intel® Atom™ Processor N2800 with Intel® NM10 Express Chipset Development Kit User‘s Manual
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NOTE
Backlight inverter voltage option “Vin” refer
s to board input voltage as provided to
board power input connector.
2.8.2.3
Configuration Modes
Video mode configuration for eDP/LVDS displays is supported as follows:
Automatic panel identification via Extended Display Identification Data (EDID) for
panels with onboard EDID support
Panel selection from common predefined panel types (without onboard EDID)
Custom EDID payload installation for ultimate parameter flexibility, allowing
custom definition of EDID data on panels without onboard EDID
In addition, BIOS setup provides the following configuration parameters for internal
flat panel displays:
Screen Brightness: allows the end user to set the screen brightness for the display
effective through the Power-On Self Test stage (such as while showing the splash
screen image and BIOS setup). Windows 7 ignores this setting in favor of the
native ―screen brightness‖ control provided by the operating system.
Flat Panel Configuration Changes Lock: allows the system integrator to ―lock‖
critical settings of the LVDS configuration to avoid end users potentially rendering
the display unusable.
Brightness Steps: allows the system integrator to configure the brightness steps for
the operating system‘s ―screen brightness‖ control (such as the ―Screen brightness‖
adjustment slider under the Windows 7 ―Power Options‖ control panel).
LVDS Interface Type: allows the system integrator to select whether the LVDS
panel is a single-channel or dual-channel display.
Swap LVDS Channels 0/1: allows the system integrator to swap the EVEN/ODD
LVDS channel assignments shall the cable be wired opposite the panel pinout.
Color Depth: allows the system integrator to select whether the panel is 24 bpp
with VESA color mapping (eDP and LVDS), 24 bpp with JEIDA color mapping (LVDS
only), or 18 bpp (eDP and LVDS).
eDP Interface Type: allows the system integrator to select whether the eDP panel is
a 1-lane, 2-lane, or 4-lane display.
eDP Data Rate: allows the system integrator to select whether the eDP panel runs
at 1.62 Gb/s or 2.7 Gb/s.
Inverter Frequency and Polarity: allows the system integrator to set the operating
frequency and polarity of the panel inverter board.
Maximum and Minimum Inverter Current Limit (%): allows the system integrator to
set maximum PWM%, as appropriate, according to the power requirements of the
internal flat panel display and the selected inverter board.
Panel Power Sequencing: allows the system integrator to adjust panel sequencing
parameters, if necessary.
LVDS Spread Spectrum Control: allows the system integrator to adjust spread
spectrum for the LVDS interface.
