Pentium SQ578, Руководство пользователя

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SQ578
5 VGA Installation(Option)
5.1 Introduction
The SQ578 All-In-One Mainboard provide a compact video and graphics solution for PC
based system. It provides a high performance 3-In-1 PCI true-color graphics accelerator with
video accelerate functions. It works in five different modes: VESA VAFC (VESA
Advanced Feature Connector) mode, standard FC (Feature Connector) mode, SiS FC (SiS
Porprietary Defined Feature Connector) mode, direct draw video mode, and PCI multimedia
mode.
5.1.1 Features
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Support tightly couppled host interface to VGA to speed up GUI performance and the
video playback frame rate.
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Support direct access to video memory to speed up GUI performance and the video
playback frame rate.
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Shared System Memory Area 0.5MB,1MB,1.5MB,2MB,2.5MB,3MB,3.5MB,4MB.
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Built-in 8QW CPU post write buffer with byte merging capability
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Support 32-bit PCI local bus standard revision2.1.
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Support PCI burst write.
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Support PCI multimedia design guide Rev.1.0.
5.1.2 Performance
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Support Turbo Queue (Software Command Queue in off-screen memory) architecture to
achieve extra-high performance.
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Built-in transparent BitBLT functions to accelerate Direct Draw performance.
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Built-in an enhanced 64bit BITBLT graphics engine with the following functions:
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256 raster operation functions
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Rectagle fill
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Color/Font expansion
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Line-drawing with styled pattern
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Built-in 8x8 pattern registers for 256 and high-color modes
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Built-in 8x8 mask registers
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32 doublewords hardware Command Queue