User`s manual

Rastergraf
General Information 1-3
1.2.1 Borealis Graphics Controller
The Rastergraf Borealis 2D/3D graphics controller chip is a 128-bit
graphics controller with accelerated 2D and 3D patterned lines and shaded
triangles, Z buffer, and 3D volume clipping. It provides a high
performance 33/66 MHz PCI 2.1 compliant interface with no additional
external logic required.
Key Borealis Device Features
• 33/66 MHz PCI Interface
• PCI Bus Master Event Notification
• 100 MHz SGRAM Memory Controller with Block Writes
• Texture Mapping Capabilities
• Perspective Correction
• Point Sampling, Bilinear and Trilinear filtering
• Full Level-of-Detail Per-Pixel MIP Mapping
• Separate Texture Mipmapping Minification and Magnification filtering
• Full OpenGL Texture Decal, Blend and Modulation Modes
• RGB Modulation Lighting Effects
• Support Palletized Textures: 1, 2, 4 and 8 bit
• Support Non-Palette Textures: 8, 16, and 32 bit
• Floating-point Triangle Setup with Vertex Level Commands
• Flat and Gouraud Shaded line drawing, with patterning
• Table and Vertex Fog
• Specular Highlighting
• Full Alpha blending
• Alpha Compare Testing
• 3D Color Keying with Color Range Support
• Backface Culling
• Bilinearly Filtered Scaling
• Power of 2 Display Zooming
• Support 8, 16, 32 bits per pixels Destination Format
• 16 and 24 bit per pixel Z Buffer Support
• Hardware 3D Volume Clipping
• 16-bit Logical Addressing in both X and Y
• Two configurable frame buffer windows
• Transparent BLT and Two operand BitBLT
•
Display List Processor
• Color Space Converter: YUV-RGB Conversion
• VGA
• 250 MHz RAMDAC
• 0.35 micron 3.3 volt CMOS process
• 388 PBGA (Plastic Ball Grid Array)