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FUNCTIONAL ARCHITECTURE
2.5.
Video Subsystem
3D RAGE PRO Graphics Controller is a highly integrated graphics controller.
Incorporated within this single chip are the 2D, 3D and video accelerators,
palette DAC, and quadruple clock synthesiser. This multi-function integrated
controller delivers superior 3D performance, TV-quality scaled video
optimized for MPEG playback, industry-leading Mach64 2D performance,
and video expansion capability suited for video conferencing, cable TV
viewing, and hardware MPEG decoding.
The availability of ATI BIOS, drivers, utilities, and application software
developed for the entire chip family is a major strength for the 3D RAGE
PRO. Being register-compatible with all other controllers in the Mach64
accelerator series means immediate compatibility with a wide range of
application drivers. Since this controller is also pin-compatible with ATI's
family of other mach64 integrated controllers, it provides to the OEM a low-
cost upgrade path to additional features and performance.
This controller uses active power management techniques to monitor activity
levels within its’ self and to perform real-time power reductions such as
dynamic clock control and graphics engine shutdown. Because full-speed
operation can be restored without delay, these techniques do not impact
performance. Major advances have been included in this chip to boost
performance in the area of a new bus interface, Accelerated Graphics Port
(AGP). With AGP data the throughput between host and 3D RAGE PRO has
greatly increased. The result is even faster 2D and 3D performance and
enhancements to motion video support (e.g. MPEG-2 motion compensation).
2.5.1.
FEATURES
3D Accelerator
Complete 3D primitive support: points, lines, triangles, lists, strips and
Quadrilaterals
Triangle Setup Engine with floating point to integer parameter conversion
4K on-chip Texture Cache
Destination Alpha
Gouraud shading
Alpha blending and alpha interpolation
16-bit Z buffer
Fogging and fog interpolation
Dithering support in 16 bpp for near 24 bpp quality
Perspectively correct mip-mapped texture mapping hardware, supporting:
Summary of Contents for IN440EX-D
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