ADLINK Technology ReadyBoard 620, Reference Manual

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Chapter 3 Hardware
24 Reference Manual ReadyBoard 620
Video Interfaces
The Graphics and Memory Hub (Northbridge)—integrated in the Geode LX processor—provides the
graphics control and video signals to the traditional glass CRT monitors and the LVDS and TTL flat panel
displays. The chip features are listed below:
•
Supports 2D graphics with extensive set of instructions including:
♦
BLT operations
♦
Hardware video up/down scalar
♦
Legacy RGB mode
CRT features:
•
Provide an integrated 350 MHz, 24-bit RAMDAC to drive a progressive scan analog monitor and
outputs to three 8-bit DACs provide the R, G, and B signals to the monitor.
•
Support resolutions up to 1920 x 1440.
•
Support a maximum allowable video frame buffer size of 254 MB UMA (Unified Memory
Architecture)
.
LVDS and TTL Flat Panel features:
•
Supports (3.3V, 5V, or 12V) Output to both LVDS and TTL flat panels through a 24-bit interface.
•
Supports TTL panel sizes from VGA (600 x 480) up to UXGA + (1600 x 1200).
•
Supports a 24-bit single channel LVDS flat panel interface.
•
Supports panel up-scaling (to fit a smaller source image onto a specific native panel size) as well as
panning and centering.TTL Flat Panel Interface.