CL-GD546X
Advance Product Bulletin
FEATURES
s
64-bit graphics engine with integrated 3D game
acceleration (CL-GD5464)
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Perspective textures mapping
Bilinear/trilinear filtering
Mip mapping
Lit, copy, decal, and blend textures
Texture decompression
Mono rasterization (single-pass lighting)
Stippling
Polygon, line, and point drawing
16-bit Z-buffer
Gouraud shading
Alpha blending, fog, and transparency
Display list processing for maximum performance
Hardware page flipping
Sub-pixel accuracy
High-Performance
VisualMedia
™
Accelerators
CL-GD5462 (2D)
CL-GD5464 (3D)
CL-GD5465 (AGP)
OVERVIEW
The CL-GD546X is the Laguna
™
family of pin-com-
patible, Rambus
®
-based 2D/3D graphics accelera-
tors. The CL-GD5462, the first family member,
provides multi-window video and graphics accelera-
tion with greater-than-VRAM performance at lower-
than-VRAM cost. The follow-on product, the
CL-GD5464, offers 3D graphics capability in addi-
tion to maintaining the same high level of 2D perfor-
mance offered by the CL-GD5462.
The 64-bit graphics engine of the CL-GD546X fea-
tures standard GUI acceleration hardware as well as
advanced features such as stretch BLT and video
playback scaling. Color-key and chroma-key opera-
tions are supported to enable graphics and video to
b e c o m b i n e d i n a n e f fi c i e n t m a n n e r. T h e
CL-GD546X integrates a 24-bpp palette DAC, clock
generators, a full-feature VGA controller, and
V-Port
™
bus for easy expandability.
(cont.)
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High-performance 64-bit GUI accelerator
— Three-operand BitBLT (bit block transfer)
— Color expansion for 8-, 16-, 24-, and 32-bpp modes
— Stretch BLT
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PCI 2.1-compliant bus master (CL-GD5464)
— DMA maximizes system performance
— Host-rendered/cached texture maps
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AGP (accelerated graphics port) support
(CL-GD5465)
(cont.)
System
Block Diagram
RDRAM
RDRAM
MPEG1/MPEG2
TV TUNER
TELECONFERENCE
(OPTIONAL)
V-Port™
PCI/AGP
5
4
3
CL-GD546X
208-PIN HQFP
2
1
0
RGB/DDC
RDRAM
RDRAM
September 1996
CIRRUS [ CIRRUS LOGIC ]
