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| CL-GD546X Advance Product Bulletin FEATURES s 64-bit graphics engine with integrated 3D game acceleration (CL-GD5464) -- -- -- -- -- -- -- -- -- -- -- -- -- -- 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 VisualMediaTM Accelerators CL-GD5462 (2D) CL-GD5464 (3D) CL-GD5465 (AGP) OVERVIEW The CL-GD546X is the Laguna TM family of pin-compatible, Rambus(R)-based 2D/3D graphics accelerators. The CL-GD5462, the first family member, provides multi-window video and graphics acceleration with greater-than-VRAM performance at lowerthan-VRAM cost. The follow-on product, the CL-GD5464, offers 3D graphics capability in addition to maintaining the same high level of 2D performance offered by the CL-GD5462. The 64-bit graphics engine of the CL-GD546X features standard GUI acceleration hardware as well as advanced features such as stretch BLT and video playback scaling. Color-key and chroma-key operations 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 TM bus for easy expandability. (cont.) s High-performance 64-bit GUI accelerator -- Three-operand BitBLT (bit block transfer) -- Color expansion for 8-, 16-, 24-, and 32-bpp modes -- Stretch BLT s PCI 2.1-compliant bus master (CL-GD5464) -- DMA maximizes system performance -- Host-rendered/cached texture maps s AGP (accelerated graphics port) support (CL-GD5465) (cont.) System Block Diagram RDRAM RDRAM MPEG1/MPEG2 TV TUNER TELECONFERENCE (OPTIONAL) V-PortTM PCI/AGP 5 4 3 CL-GD546X 208-PIN HQFP 2 1 0 RGB/DDC RDRAM RDRAM September 1996 FEATURES/OVERVIEW LagunaTM Family VisualMediaTM Accelerators CL-GD546X FEATURES (cont.) s Video playback acceleration -- -- -- -- Single-pass X, Y interpolated scaling Hardware occlusion for three video windows YUV-to-RGB conversion Color and chroma key OVERVIEW (cont.) Based on the CL-GD5462, the CL-GD5464 incorporates a 3D module, PCI bus mastering, and a newer, 230-MHz DAC. The CL-GD5464 offers very costeffective hardware acceleration for the latest generation of 3D games that rely heavily on texture mapping to achieve a dramatic experience for the end user. The rendering performance is tuned to Microsoft's Direct3D game API. The CL-GD5464 is also compatible with many other 3D game APIs on the market. The CL-GD5464 operates as a PCI bus master for maximum system throughput. Use of the PCI bus master reduces the system cost by optionally storing texture maps, Z-buffer, and display list instructions for 3D operation in system memory. The CL-GD5465 also supports Intel's AGP (accelerated graphics port) for higher bandwidth between the system memory and the graphics subsystem. Both the CL-GD5462 and CL-GD5464 are onechannel devices with bandwidth up to 600 Mbytes per second. While maintaining the same pin layout, future Laguna family members will use two Rambus channels to increase the bandwidth to 1.2 Gbytes per second. s Rambus(R) memory architecture -- Low-latency devices supported -- Single memory for color-buffer, Z-buffer, and texture store s V-Port TM for peripheral expansion -- MPEG decoder -- TV tuner -- Teleconferencing s Integrated VGA controller s Integrated 230-MHz palette DAC and clock synthesizer (CL-GD5462 is 170 MHz) -- Supports resolutions up to 1600 x 1200 at 85 Hz -- True-color operation up to 1024 x 768 -- Hardware cursor s DDC (display data channel) level 2B-compliant monitor signaling s `Green PC' power-saving features support -- DPMS (display power management signaling) -- System power-down 3D GRAPHICS AND VIDEO MODES (CL-GD5464) The following table shows some of the video data formats associated with each of the graphics display modes for the CL-GD5464. RDRAM Memory Size 1 Mbyte 1 Mbyte 2 Mbyte 2 Mbyte 2 Mbyte a Screen Resolution (Double-Buffered) 640 x 480 320 x 240 640 x 480 640 x 480 485 x 380 Color Depth (Double-Buffered) 8 bpp 16 bpp 16 bpp 16 bpp 16 bpp Z-Buffer Host based 16 bit 16 bit Host based 16 bit Off-Screen Texture Memory a > 350 Kbytes > 450 Kbytes > 150 Kbytes > 600 Kbytes > 800 Kbytes Additional texture maps can be stored in system memory and accessed by the CL-GD5464 bus master capability. CL-GD546X LagunaTM Family VisualMediaTM Accelerators SOFTWARE DRIVERS SUPPORT Cirrus Logic provides an extensive and expanding range of software drivers to enhance the resolution and performance of many software packages. The following table lists the Cirrus Logic software drivers for the CL-GD546X. The CL-GD5464 is a software superset of the CL-GD5462. Software Drivers Microsoft(R) Windows(R) Microsoft(R) DCI Provider (display control interface) Microsoft(R) Windows(R) 95 Microsoft(R) DirectDrawTM Resolution Supported 640 x 480, 800 x 600, 1024 x 768, 1280 x 1024, 1600 x 1200 640 x 480, 800 x 600, 1024 x 768, 1280 x 1024 640 x 480, 800 x 600, 1024 x 768 640 x 480, 800 x 600, 1024 x 768 640 x 480, 800 x 600, 1024 x 768, 1280 x 1024, 1600 x 1200 No. of Colors 256 (8 bit) 65,536 (16 bit) 16.8 Million (24 bit) 16.8 Million (32 bit) CL-GD5464 only 256 (8 bit) 65,536 (16 bit) 16.8 Million (24 bit) 16.8 Million (32 bit) 256 (8 bit) 65,536 (16 bit) 16.8 Million (24 bit) 256 (8 bit) 65,536 (16 bit) - Microsoft(R) Windows NT TM 640 x 480, 800 x 600, 1024 x 768, 1280 x 1024 640 x 480, 800 x 600, 1024 x 768 640 x 480, 800 x 600, 1024 x 768 AutoCAD(R) AutoShade(R) with RendermanTM 3D StudioTM MicroStation(R) OS/2(R) v3.x, Warp VPM (video port manager) 640 x 480, 800 x 600, 1024 x 768, 1280 x 1024, 1600 x 1200 640 x 480, 800 x 600, 1024 x 768, 1280 x 1024 640 x 480, 800 x 600, 1024 x 768 640 x 480, 800 x 600, 1024 x 768, 1280 x 1024 640 x 480, 800 x 600, 1024 x 768 Resolution-independent BIOS SUPPORT s Fully IBM(R) VGA-compatible BIOS s VBE (VESA(R) BIOS Extension) v2.0 support s PCI support s DPMS and DDC2B support in ROM s Plug-and-play support UTILITIES s Manufacturing test s Video-mode configuration utility: CLMODE s Configured OEM system integration: OEMSI s Resolution switching utility: WINMODE s RAMBIOS utility s Screen centering utility s Register editor and viewer |
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