Specifications

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VGA Interface

Video Controller Hardware

The EPC-30 contains the Cirrus Logic CL-GD6245 Super VGA (SVGA)

graphics controller. The controller’s connection with the local bus yields the

best possible graphics performance. SVGA memory is 512 KB, using one

256 Kb x 16 DRAM. This provides standard VGA modes on a CRT or flat

panel display. With the appropriate display drivers, the SVGA chip can

provide SVGA modes up to 800 x 600 on flat panel displays, CRT displays

of up to 800 x 600 in 256colors, and up to 1024 x 768 in 16 colors (non-

interlaced).

Display Drivers and Optional Utilities Software

Cirrus Logic supplies the SVGA Driver and optional utilities software. The

VGA display driver diskette is made available by Cirrus Logic for DOS and

for Windows 3.1x.. Contact Cirrus Logic as this Appendix later describes or

contact your dealer or RadiSys to obtain additional software support. The

Cirrus Logic utilities diskette includes display drivers for 640 x 480 and 800

x 600 in both 16 and 256 colors, and 1024 x 768 in 16 colors. These drivers

are suitable for use with CRT monitors and LCD flat panel displays. An

included utility allows use of both display devices simultaneously. Be sure to

check for READ.ME files on the diskette before you begin to install any

utility. Cirrus Logic, Inc. copyrights portions of this Appendix.

NOTE: The Cirrus Logic display driver for Windows 3.1x should work with

Windows 95, although RadiSys has not validated this configuration with the

EPC-30.

For DOS users, the CLMODE utility program configures flat panel options,

defines the type of monitor attached, and sets the video modes supported by

the Cirrus Logic chipset. The Cirrus Logic SVGA software includes

CLMODE. The following section describes these utilities and how to use

them.

For Windows users, the WINMODE utility configures Windows for use with

the Cirrus Logic chipset, just as CLMODE works for DOS.

Before You Begin

The following instructions assume that you are familiar with DOS and

common DOS commands. You may wish to review the associated DOS

commands before installing the software.