Kontron COMe-cXLi2 - Manual (Page 42)

Kontron COMe-cXLi2 User’s Guide
www.kontron.com
36
4.2.5 Serial IRQ
The serial IRQ pin offers a standardized interface to link interrupt request
lines to a single wire.
Configuration
The serial IRQ machine is in “Continuous Mode”.
4.2.6 Graphics Interface
The COMe-cXLi2 uses the Intel® Graphics Media Accelerator 500 (Intel® GMA
500) with a 200MHz GPU clock that is integrated in the Intel® System
Controller Hub (US15WPT).This configuration delivers shader-based
technologies and high-performance 2D, 3D, and video capabilities. The GMA 500
graphics engine supports a variety of LCD panels with single clock, color
depths of 18/24 bit, and resolutions up to WXGA (1366x768). The maximum
supported pixel clock on 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
decode acceleration of H.264, MPEG2, VC1 and WMV9 eliminates the need for
software CODEC as well as offloading the CPU.
The Intel® GMA 500uses the onboard RAM for graphics memory. The pre-allocated
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 driver settings used. The graphics media
accelerator (GMA) driver uses DVMT to manage the allocation of system memory
according to the needs of the applications that are running. The Intel®
Embedded Graphics Driver (IEGD) allocates the maximum graphics memory
depending on system memory and driver settings.
Physical Memory
on COMe-cXLi2 COM
Pre-allocated
Memory
in BIOS Setup
Maximum Graphics
Memory with GMA
Driver
Maximum Graphics
Memory with IEGD
512MB 1MB 127MB 352MB
512MB 4MB 126MB 352MB
512MB 8MB 125MB 352MB
1024MB 1MB 255MB 352MB