Service manual

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supporting chip - video
ATI RAGE LT PRO GRAPHICS CONTROLLER
The RAGE LT Pro is a highly integrated graphics accelerator with superior support for 3D and motion video —
ideal for notebooks and LCD desktops. It incorporates comprehensive support for Intel’s Accelerated Graphics Port
(AGP), including 1X or 2X mode with sidebands.
Delivering superior 3D acceleration and comprehensive 3D support, the RAGE LT Pro includes a triangle set-up
engine, single-pass trilinear filtering, six perspectively correct texturing modes, video texturing, Gouraud and specu-
lar shading, and a host of 3D special effects.
The best choice for DVD notebooks and LCD desktops, the RAGE LT Pro’s DVD features include motion compen-
sation, acceleration for soft DVD, integrated TV-out with Macrovision and support for third-party MPEG-2 decod-
ers via the ATI Multimedia Channel (AMC).
Using Tri-View™ the RAGE LT Pro can output to LCD, CRT, and TV simultaneously. It also includes two output
controllers so that any two display devices can have different images and/or refresh rate.
It has the following main features:
• First mobile accelerator to use AGP 2X (133MHz) in AGP Textur-
ing with sideband signals to realize all the benefits of AGP.
• First mobile accelerator to deliver full motion soft DVD using mo-
tion compensation circuitry.
• First mobile acccelerator with integrated LVDS transmitter.
• Innovative Dynamic Power Management with ACPI compliance.
• Superior 3D performance acheived through a hardware setup
engine and a 4KB on-chip texture cache.
• Superior 2D performance with support of 100MHz SGRAM.
• TFT and DSTN panel interface support for up to 1280x1024 reso-
lutions.
• Integrated ImpacTV2-quality TV output provides optimal image
quality via programmable 6 tap flicker filter, resolution modes
scale down from 1024x768 and 16:9 wide mode support. Direct
YUV422 mode, Macrovision 7.01 and CGMS support.
• Support for 2, 4, or 8MB frame buffers, and integrated 230MHz
DAC.
• High quality ratiometric expansion that fits source images to any
panel resolution.
• Flexible graphics memory configurations: 4MB up to 8MB
SDRAM/SGRAM.
• Memory upgrade via industry standard SGRAM SO-DIMM,
for reduced board area and higher memory speeds.
• DDC1 and DDC2B+ for plug and play monitors.
• External Spread Spectrum chip support to reduce EMI on
digital interface.
• Power management with full VESA DPMS and EPA Energy
Star compliance.
• Integrated hardware diagnostic tests performed automati-
cally upon initialization.
• High quality components through built-in SCAN, IDDQ, CRC
and chip diagnostics.
• Single chip solution in 0.25um, 2.5V CMOS technology.
• Comprehensive HDKs, SDKs and utilities augmented by full
engineering support.
• Fully compliant with relevant sections of PC 98 and PC 99.