Chapter 5 Peripherals
© National Instruments Corporation
5 - 3
VXIpc-850 Series User Manual
Video
The VXIpc-850 uses the TGUI96XX Series Video Accelerator from
Trident Microsystems. For space and modularity reasons, Nati onal
Instruments designed a PCI- based video card using the TGUI96XX and
up to 4 MB of EDO DRAM. The performance of this card rivals that of
any other 64-bit graphics card on the market.
With 4 MB of DRAM, the TGUI96 XX supports up to 1600x1200
resolution (65 KB colors maximum) or up to 16.7 million colors
(1280x1024 resolution maximum). You can also select the refresh rate
at which you would like the video circuitry to operate.
Caution:
If you are using a Super VGA monitor, make sure it has a horizontal
scan rate of at least 50 kHz and a vertical scan rate of 60 Hz. Using the
Super VGA option with a monitor that does not meet these criteria will
damage your monitor.
You do not need to install the video drivers. The TGUI96XX driver
software comes installed on your hard dis k with a default configuration
640x480 resolution at 16 colors and a 60 Hz refresh rate . This setting
was chosen to accommodate all VGA monitors; however, you may
want to increase the resolution, colors, and refresh rate according to the
capabilities of your monitor. Within Windows 3.1, i n the Display
Driver and Utilities program g roup, you will find the TGUI96XX
utilities described in the Trident manual .
For archival purposes, an image of the TGUI96 XX installation files are
provided in
c:\images\video
.
About the Trident Video Manual
In addition to the driver software, Trident Microsystems provides
documentation to its OEM customers. Refer to the VXIpc -850
Peripherals User Manual for more information.
Technical Information about the Video Interface
The TGUI96 xx video accelerator has a 32-bit, 5 V PCI interface for
communication with the process or. It provides a dedicated 64- bit path
to the video memory. In the National Instruments implementation, it
interfaces to 70 ns EDO DRAM . There is 70 ns EDO DRAM instead of