4-12 Hardware Functional Overview
Video Chip Controller
The video subsystem utilizes the NeoMagic 2160 (NMG4) MagicGraph 128XD
VGA accelerator chip which supports simultaneous display, linear address, PCI
local bus, and single 3.3V operation including LCD.
Feature Summary of the NMG4:
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128-bit integrated graphics and video accelerator with XGA support,
MagicPass EMI reduction, and 3D acceleration.
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Small 176-pin package, ultra low power operation, 3.3V or mixed
3.3/5V operation.
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CRT Display Features:
VGA: Supports TFT CRT @ 85Hz Simultaneous modes with 75Hz
CRT 256, 64K, 16M colours at 640x48
SVGA: Supports TFT CRT @ 85Hz Simultaneous modes with 75Hz
CRT 256, 64K colours at 800x600
XGA: Supports TFT CRT @ 75Hz Simultaneous modes with up to
75Hz CRT 256, 64K colours at 1024x768
16M colours Video playback in all modes
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Video Acceleration Features:
Video acceleration over 30fps with 16M displayable colours in all
modes
Bandwidth designed to support MPEG2 video acceleration at
1024x768 resolution
Hardware video overlay with Horizontal and Vertical bilinear
scaling and filtering with interpolation. Scaling to any arbitrary ratio
up to full screen
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Mobile 3D - Superior 128-bit 3D Acceleration Enhancements:
3D acceleration hardware. First 3D acceleration on notebooks in
under 1/2 Watt
Bus Master capability allows CPU and accelerator concurrency.
First notebook accelerator with Bus Master acceleration
132Mbytes/second PCI bus transfer support
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MagicPass(tm) EMI Reduction Features:
MagicPass EMI reduction function reduces panel EMI and cable
interface EMI from 5-20 dB (patent-pending)
Compatible with standard digital & LVDS & PanelLink panels