CP6000
Functional Description
ID 27942, Rev. 05
© 2005 Kontron Modular Computers GmbH
Page 2 - 13
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2.05.UG.VC.051020/17275
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P R E L I M I N A R Y
2.3.4
Graphics Controller
The 855GME includes a highly integrated graphics accelerator delivering high performance
3D, 2D video capabilities. The internal graphics controller provides interfaces to a standard
progressive scan monitor. This interface is only active when running in internal graphics mode.
Integrated 2D/3D Graphics:
• 3D hyperpipelined architecture
• Full 2D hardware acceleration
• Intel® 855GME D.V.M. Technology graphics core
• Integrated 350 Mhz DAC
• Resolution up to 1600 x 1200 @ 100 Hz and 2048 x 1536 @ 75 Hz with True colors
• Integrated H/W Motion Compensation engines for software MPEG2 decode
2.3.4.1
Video Memory Usage
The 855GME chipset supports the new Dynamic Video Memory Technology (D.V.M.T.). This
new technology ensures the most efficient use of all available memory for maximum 3D
graphics performance. D.V.M.T. dynamically responds to application requirements allocating
display and texturing memory resources as required.
The operating system requires a minimum of 1 MB and a maximum of 64 MB of system mem-
ory to support legacy VGA. System properties will display up to 64MB less than physical sys-
tem memory available to the operating system.
The graphics driver for the Intel® 855GME configuration will request up to 64 MB of memory
from the OS. By reallocating memory to the system, memory is freed up for other applications
when not needed by the graphics subsystem. Thus, efficient memory usage is ensured for op-
timal graphics and system memory performance.
2.3.4.2
Video Resolution
The 855GME has an integrated 350 MHz RAMDAC that can directly drive a progressive scan
analog monitor up to a resolution of 1600x1200 @ 100 Hz and 2048 x 1536 @ 75 Hz.
Table 2-11: Partial List of Display Modes Supported
DISPLAY MODE
COLOR RESOLUTION VERSUS HORIZONTAL FREQUENCY
8-BIT INDEXED
16-BIT
32-BIT
60
75
85
100
60
75
85
100
60
75
85
100
640 x 480
X
X
X
X
X
X
X
X
X
X
X
X
800 x 600
X
X
X
X
X
X
X
X
X
X
X
X
1024 x 768
0
X
X
X
X
X
X
X
X
X
X
X
X
1280 x 1024
X
X
X
X
X
X
X
X
X
X
X
X
1600 x 1200
X
X
X
X
X
X
X
X
X
X
X
X
1920 x 1440
X
X
X
X
X
X
X
X
X
2048 x 1536
X
X
X
X
X
X
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