Kontron KTAM3874-pITX - Manual (Page 9)

KTD-S0057-I Page 5 U-Boot Setup
KTAM3874/pITX Software Guide
2.3.3 LCD Panel Resolution
You have the choice to select a panel resolution with a fixed timing or a special setting 'auto' for a free
definable timing based on the VESA
® DisplayID TM specification. For further details about DisplayID TM see the
chapter 'VESA ® DisplayID TM '. The KTAM3874/pITX supports following resolutions:
auto free timing based on VESA ® DisplayID TM
vga fixed timing 640x480 pixel, 18 bit color depth, single channel
wvga fixed timing 800x480 pixel, 18 bit color depth, single channel
svga fixed timing 800x600 pixel, 18 bit color depth, single channel
xga fixed timing 1024x768 pixel, 24 bit color depth, single channel
sxga fixed timing 1280x1024 pixel, 24 bit color depth, dual channel
uxga fixed timing 1600x1200 pixel, 24 bit color depth, dual channel
fullhd fixed timing 1920x1080 pixel, 24 bit color depth, dual channel
2.3.4 LCD Panel Mapping
There are two interface modes existing at 24-bit color depth: FPDI (Flat Panel Display Interface) or LDI
(LVDS Display Interface). For 18-bit color depth this setting has no validity. More information can be found
in chapter ' VESA
® DisplayID TM /24 Bit Color Mapping Tips'.
fpdi
ldi
2.3.5 Backlight Output Control
Almost all LCD panels support either analog or PWM backlight brightness, therefore two options are avail-
able.
analog
pwm frequency approx. 600 Hz
2.3.6 Backlight Output Level
Some backlight inverters need a low level for the enable signal, other inverters a high level. Use this
submenu to configure the right enable output level.
low voltage = 0V
high voltage = +3.3V
2.3.7 Backlight Brightness
This submenu allows the definition of the analog backlight brightness (voltage range: 0V to +5V). The input
format is represented by a decimal number with maximal three digits.