Kontron KTT20-pITX - Manual (Page 9)

KTD-S0045-D Page 5 U-Boot Setup
KTT20/pITX Software Guide
2.3.3 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.
Examples:
Brightness: 0 minimal value = 0V
or
Brightness: 128 half range = +2.5V
or
Brightness: 255 maximal value = +5V
2.3.4 Backlight Output Level
Some backlight inverters need a low level for the enable signal, other inverters a high level (normally +5V).
Use this submenu to configure the right enable output level; two options are available
S
low
voltage = 0V
S
high
voltage = +5V
2.4 Devices Menu
This menu part defines several hardware device settings
S
PCI Express settings
S
Audio settings
S
GPIO settings
2.4.1 PCI Express ® Interface
The selection is limited to the enable respectively disable feature
S
disabled
S
enabled
2.4.2 Audio Device
The selection is also limited to the enable respectively disable feature
S
disabled
S
enabled