Toshiba Infinia 7130 Series Maintenance Manual page 202

Graphics Subsystem
The Infinia™ Models 7130, 7160, 7161, 7200, 7201, and 7220 system board features S3
ViRGE SVGA graphics controller.
CAUTION: When removing graphics memory from the on board sockets, use
an approved SOJ IC removal tool, so that damage does not occur to the traces
on the etched circuit board.
S3 ViRGE Graphics
The S3 ViRGE SVGA graphics controller has 2 MB of 50 ns EDO SOJ DRAM. The S3
ViRGE has a high performance 64-bit 2D/3D graphics engine and incorporates the S3
Streams Processor that enables the device to convert YUV formatted video data to RGB and
provides acceleration for scaling the video display without compromising picture quality or
frame rate. The on-chip RAMDAC/clock synthesizer is capable of output pixel data rates of
135 MHz providing non-interlaced screen resolutions of up to 1280x1024x256 colors at 75
Hz. The 64-bit S3d Engine incorporates the key Windows and other GUI accelerator
functions of BitBLT, line draw and polygon fill. 3D features include flat shading, Gouraud
shading and texture mapping support. Advanced texture mapping features include perspective
correction, bi-linear and tri-linear filtering, MIP-mapping, and Z-buffering. These features
provide the most realistic user experience for interactive 3D applications. In addition, a fast
linear addressing scheme based upon DCI reduces software overhead by mapping the display
memory into the microprocessor's upper memory address space and permitting direct
microprocessor access to the display memory.
Resolution
640 x 480 x 16 colors
640 x 480 x 256 colors
640 x 480 x 65536 colors
640 x 480 x 16,777,216 colors (non-accelerated
mode)
800 x 600 x 256
800 x 600 x 65536
800 x 600 x 16,777,216 colors (non-accelerated
mode)
1024 x 768 x 256
1024 x 768 x 65536
1280 x 1024 x 256
* = Interlaced
NOTE: The S3 ViRGE graphics controller supports more modes than shown
above. However, the drivers support only those modes listed.
Infinia™ 7130, 7160, and 7200 Maintenance Manual --------------------------------------- D-13
Table D-1 S3 ViRGE Supported Resolutions
Refresh rate (Hz)
60
60, 72, 75, 85
60, 72, 75
60, 72, 75
56, 60, 72, 75, 85
60, 72, 75
60, 72, 75
43(IL*), 60, 70, 75, 85
43(IL*), 60, 70, 75
43(IL*), 60, 70, 75