The information in this document is subject to change in order to
improve reliability, design, or function without prior notice and does
not represent a commitment on the part of the company. In no event
will the company be liable for direct, indirect, special, incidental, or
consequential damages arising out of the use or the inability to use the
product or documentation, even if advised of the possibility of such
damages. No part of this manual may be reproduced or transmitted in
any form or by any means without the prior written permission of the
company.
August 1999, Rev. D
The Video 107AGP 3D & TV brings to the PC unparalleled
price/performance 3D graphics. With rCADE3D™ acceleration for
pipelined single cycle graphics engines, 3D games can now take
advantage of Accelerated Graphics Port (AGP) 2x with sideband
addressing for upto 533Mbyte per second. By adding Trident’s
TVXpress video encoder, THAMA™ brings no compromise DVD
playback to the desktop.
The Video 107AGP 3D & TV integrates the advanced rCADE3D™
3D/2D Accelerator with DVD, video, and digital TV into a single chip
solution. The rCADE3D™ combines advanced per pixel 3D setup and
rendering with 2D graphical user interface (GUI) acceleration. For high
speed low latency access, the Video 107AGP 3D & TV can fetch
textures stored in up to 8Mbytes of local memory. Taking advantage of
AGP’s Direct Memory Execution (DME) to fetch textures from main
memory, textures are no longer limited by local memory. For maximum
throughput, the Video 107AGP 3D & TV uses full AGP 2x with
sideband addressing. The Video 107AGP 3D & TV supports PCI
Version 2.1 with bus mastering.
The Video 107AGP 3D & TV’s Trident Hardware Assisted MPEG-2
Architecture (THAMA™) brings DVD playback to the multimedia PC.
Compared to software only DVD players, the combination of software
based decode and hardware based motion compensation delivers
smooth frame rates without overloading the processor.
With integrated circuitry supporting the Accelerated Graphics Port
(AGP), the Video 107AGP 3D & TV is a highly integrated display
control device that incorporates a 64-bit 3D/2D graphic engine and
video accelerator with advanced DVD video capability. It provides a
flexible and high performance solution for graphics and video playback
acceleration for various color depth and resolution modes.
The Video 107AGP 3D & TV supports a video capture port to import
captured live MPEG or MPEG2 video streams, or DVD decompressed
video streams to be overlaid with a graphics stream of mixed color
depth displays. In supporting dual live videos, the Video 107AGP 3D &
TV offers independent dual video windows ready for Videoconferencing
and with linear scaling capability.
• Microsoft DirectShow native support, MCI backwards
compatibility
• No additional frame buffer requirements
2.4 TrueVideo® Scaling Processor
• Horizontal & vertical interpolation using Trident Edge
Recovery Technique (TERT)
• Edge smoothing
• Dual frame buffer apertures
• Vertical Blank Interval for Intercast
• Overlay different video and graphic color depths
• Two scalers and color space converters (CSC) for
independent windows
2.5 Video Capture/Digital TV Interface
• 8-bit VMI Compatible Interface
• 4:2:2/4:1:1 YUV & RGB Data Format
• Optional TVXpress for digital TV
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TM
• l²C Interface
2.6 Memory Interface
• 8Mbyte Frame Buffer
• 64-bit SGRAM/SDRAM
2.7 CRT Interface
• Integrated 24-bit RAMDAC
• DDC2B
• VESA
2.8 Overview
The Video 107AGP 3D & TV is a SGRAM/SDRAM based, fully
integrated CRT and TV 64-bit 2D/3D Accelerator for AGP and
PCI systems. It is a high performance chip, offering high
speed 3D image processing in full compliance and
compatibility with IBM® VGA and VESA™ extended VGA; 32bit PCI 2.1 local bus interface with Bus Mastering capability;
and with the Accelerated Graphics Port (AGP) 1.0 interface.
The Video 107AGP 3D & TV, equipped with a single-cycle 3D
GUI Engine, pipelines 3D rendering process architecture in
hardware, providing real-time interactions with solid 3D
models in CAD/CAM, 3D modeling, and 3D games. It
supports all key 3D rendering operations, including: Gouraud
shading for smooth object surfaces, texture mapping for
realistic object textures, 16-bit hardware Z-buffering for fast
3D depth calculations, and Alpha Blending for transparency
effects.
Video 107AGP 3D & TV ‘s highly innovative design, a full 64bit memory interface with the high performance graphics
engine which can support the RAMDAC™ running up to
230MHz, dramatically improves GUI functions and
significantly promotes overall system operation.
TM
DPMS
The Video 107AGP 3D & TV supports the AGP
implementation including 2x operation with sideband
addressing, in addition to the PCI 2.1 specification of 66MHz
9
operation. The AGP operations can include direct access of
the system memory by the 2D/3D engine to provide increased
texture memory.
To meet the requirements of a PC98 graphics adapter in a
multimedia PC, the Video 107AGP 3D & TV supports planar
video format for MPEG-1, MPEG-2, and DVD-video playback.
The dual video playback is capable of overlaying windows for
videoconferencing and multimedia displays. Advanced
features of the Video 107AGP 3D & TV, such as color space
conversion, TrueVideo® scaling, dual video windows, dualview display, Video Module Interface (VMI), Vertical Blanking
Interleave (VBI), a 24-bit True Color DAC, and triple clock
synthesizers allowing performance at peak levels.
2.9 System Features
The Video 107AGP 3D & TV’s main system features include:
• High Performance single cycle GUI
• Highly Integrated RAMDAC™ and Triple ClockSynthesizer
• Full Feature High Performance 3D Graphics Engine
• High speed AGP and PCI Bus Mastering data bussupports DVD video playback
• Hardware implementation of motion compensation
• Dual Video Windows for Videoconferencing
• TrueVideo® Processor
• DirectDraw ™ and DirectVideo™ Hardware Support
• Versatile Motion Video Capture/Overlay Support
• Flexible Frame Buffer Memory Interface
• Advanced Mobile Power Management
• CRT Power Management (VESA™ DPMS)
• Standard Bus Interface with Bus Mastering Support
• Accelerated Graphics Port Support
• PC98 Hardware Support
2.10 High Performance 64-bit 2D GUI
The 64-bit graphics engine of the Video 107AGP 3D & TV
significantly improves graphics performance through
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specialized hardware that accelerates the most frequently
used GUI operations and matches the high-speed
requirements of CPUs. Functions directly supported in
hardware include: BitBLTs, image and text transfer, line draw,
short stroke vector draw, rectangle fills, and clipping.
The graphics engine supports 256 Raster Operations (ROPs)
for up to 32-bit packed pixel graphic modes. The ROP3
Processor in the Video 107AGP 3D & TV is able to perform
Boolean functions which allow many additional operations,
including transparency, pattern masking, color expansion
alignment, and pattern enhancement. Additionally, the
graphics engine features linear display memory addressing
(up to 4GB memory space), accelerated color expansion
modes for graphics text procession, and memory-mapped I/O
registers on the graphics engine for faster access time.
Graphic functions are optimized by a 64-bit internal data bus
and a four-color hardware cursor/pop-up icon, operating up to
a 128x128x2 pixel image, which off-loads the CPU. The
hardware cursor mechanism can also be used to display
patterns stored in the system memory. This pop-up icon is
very useful to display user friendly information instantly
through simple hot key operations.
This advanced function combination allows significant
performance increases over standard Super VGA designs and
provides outstanding graphics acceleration on GUIs, such as
Microsoft ® Windows 95® .
2.11 Highly Integrated RAMDAC
Synthesizer
The highly integrated design of the Video 107AGP 3D & TV
offers a “no TTL” solution for cost-effective, high-performance
multimedia subsystem designs for the IBM ® PC and
compatible notebooks. The 64-bit memory data bus
supporting SDRAM and SGRAM memory provides faster data
transfer rates for improved system throughput. The Video
107AGP 3D & TV has a built-in, high speed RAMDAC™. The
RAMDAC™ is composed of one 256x24 and one 256x18 color
lookup table and a triple loop frequency synthesizer, providing
the read/write timing control for the Frame Buffer Memory and
the refresh of the TV/CRT display.
Video processor features include: on-chip hardware Color
Space Conversion (CSC) for faster data conversion on the fly,
Horizontal/Vertical (H/V) scaling with interpolation, edge
recovery algorithm, gamma correction, and overlay control
with different color depths from graphics. The Video 107AGP
3D & TV also includes a fully integrated GUI accelerator, read
11
TM
& Clock
cache, and command FIFO that optimize memory bandwidth
and maximize graphics performance.
2.12 Full Feature High Performance 3D Engine
The Video 107AGP 3D & TV is equipped with an advanced
Graphics Drawing, Single Cycle 3D Graphics Engine that
performs premium 3D functions at a high level of more than
1M triangles per second. The 3D engine supports Microsoft ®
Direct3D. The 3D Engine is set up to off-load the CPU from
major 3D tasks including slope calculation, sub-pixel
positioning, and Tri-striping. By balancing 3D pipe line and
reducing parameter passing, the Video 107AGP 3D & TV
approaches the high levels of performance. The 3D engine is
integrated with a triangle set-up engine that sets up triangles
according to the input data of triangle vertex and
accomplishes various functions for 3D rendering. Gouraud
shading provides smooth shading for colors across surfaces,
perspective correction texture mapping to correct texture data
based on the perspective, bi-linear texture filtering for
interpolating, alpha blending to compensate colors for the
opacity of two colors blended, Z-buffering (16-bit/24-bit), video
texturing to overlay 2D video play-back onto 3D images,
fogging to simulate weather effects, palletized texture
mapping (1-, 4-, or 8-bit) for memory and bandwidth
reduction, and anti-aliasing to reduce or eliminate jaggies
resulted from alias rendering. The 3D engine also works with
the APM system, conserving power while the 3D operations
are suspended.
2.13 TrueVideo® Processor
The Video 107AGP 3D & TV, with an integrated Video Display
and a Capture Engine, supports dual apertures on the PCI
bus which enables independent graphic and video data to be
transported simultaneously to and from different memory
areas and greatly accelerates the performance of both
DirectDraw™ and DirectVideo™. The Video 107AGP 3D & TV
can provide dual video windows that display different images
from different video sources (from the PCI bus and from the
capture port) on the same screen. The video image is stored
in the off-screen memory and is retrieved by the Video Display
Processing block for TrueVideo® processing.
With the help of DirectDraw™ acceleration for sprites, page
flipping, double buffering, and color keying, TrueVideo®
processing is performed by utilizing Trident’s proprietary edge
recovery algorithm for sharper line visibility, de-interlacing,
anti-tearing, multitap horizontal filtering, dithering, and scaling
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operations with bilinear interpolation in both horizontal and
vertical directions. The linear scaling permits zoom in/out to
any size without any restrictions. In addition, the on-chip
hardware Color Space Conversion (CSC) accelerates
conversion for 16 bit YUV pixels into linear true color 32 bit
RGB pixels on the fly. The additional X and Y minifiers are
capable of shrinking the video images to any linear fractions,
which saves bus bandwidths and memory space. The YUV
planar of the Video 107AGP 3D & TV supports a YUV 420
format that can remove redundant video stream decoding
procedures. The load of the CPU is reduced while performing
SW MPEG or SW video conferencing. The color and
luminance control provided by the Video 107AGP 3D & TV
offers color compensations to prevent color distortion for
display devices such as a CRT or TV with Gamma correction
and hue adjustment control.
The Video Conferencing feature allows remote and local video
images to be displayed simultaneously on the same screen.
2.14 Video Capture and DVD
The Video 107AGP 3D & TV has an 8-bit Video Module
Interface (VMI) compatible interface, allowing it to be directly
connected to many MPEG and video decoders such as the CCube CL450/480, SGS 3400/3500, Philips 7110/1 and
Brooktree BT819/817/827/829.
The Video 107AGP 3D & TV, integrated with a DVD video
hardware block for motion compensation, gives existing PCs
the ability to play DVD video in MPEG-2 format at high
bandwidths with very good video quality.
A new industry standard is being set for transmission of nonvideo data over a TV broadcast signal during vertical blanking
dead time. This technology is referred to as Intercast. The
Video 107AGP 3D & TV has the ability to take the entire video
stream over the video port, sending the visible video stream to
the display memory for display in a window, stripping the VBI
data from the stream, and then sending this data to the CPU
for processing using PCI Bus Mastering.
2.15 Versatile Frame Buffer Interface
The Video 107AGP 3D & TV features a versatile frame buffer
interface, providing SDRAM/SGRAM interface flexibility to
meet the demand of high-end and mid-end notebook designs.
Optimized performance can be achieved with the single cycle
memory bus interface using programmable DRAM timing. The
display queue has been increased to reduce the frequency of
the memory bus requests, optimizing the memory bus
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