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3.11.6
Graphics Interface
The nanoETXexpress-SP uses the graphics accelerator GMA500 with 200MHz GPU clock integrated in the Intel®
System Controller Hub (US15W), which delivers shader-based technologies and high-performance 2D, 3D and video
capabilities. The GMA500 graphics engine supports a variety of LCD panels with single clock, color depths of 18/24 bit
and resolutions up to WXGA (1366×768). The maximum supported pixelclock of the system controller hub is 112 MHz.
Hardware video decode acceleration relieves the decode burden from the processor and reduces the power
consumption of the system. Full hardware acceleration of H.264, MPEG2, VC1 and WMV9 eliminates the need of a
software codec and offloads the CPU.
The graphic adapter uses the onboard RAM as graphic memory. The preallocated memory is defined through bios
settings.
Possible settings are:
» 1MB
» 4MB
» 8MB
The total amount of graphics memory in the operating system depends on the size of system memory and the used
driver settings. The graphics media accelerator driver GMA uses DVMT to manage allocating of system memory
according to the needs of running applications. The Intel® Embedded Graphics Driver IEGD allocates the maximum of
graphics memory depending on system memory and driver settings.
Physical Memory of
nanoETXexpress-SP
512MB
512MB
512MB
1024MB
1024MB
1024MB
For memory allocation according to the table above BIOS revision NOW1R112 or newer is
recommended
When using 1MB Preallocated Memory an Operating Systems without active GMA or IEGD
may have problems to display a screen (e.g. during WinXP installation).
VGA
The nanoETXexpress-SP graphics subsystem GMA500 integrated in the Intel® System Controller Hub US15W does not
support VGA output.
LVDS Flat Panel Interface (JILI)
The user interface for flat panels is the JUMPtec Intelligent LVDS Interface (JILI). The implementation of this
subsystem complies with the COM Express® Specification. Implementation information is provided in the COM
Express® Design Guide. Refer to the documentation for additional information.
33
Preallocated Memory in
BIOS Setup
1MB
4MB
8MB
1MB
4MB
8MB
nanoETXexpress-SP/Specification
Maximum Graphics
Memory with GMA Driver
127MB
126MB
125MB
255MB
254MB
253MB
Maximum Graphics
Memory with IEGD
352MB
352MB
352MB
352MB
352MB
352MB
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