Cirrus Logic CL542X VGA User Manual

CL542X VGA

http://www.computer-museum.net

User's Manual

FCC

information

Note

: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 1
reasonable protection against harmful interference in a residential installation. This equip­ment generates uses and can radiate radio frequency energy and,
in accordance with the instructions, may cause harmful interference to radio communica­tions. However, there is no guarantee that interference will not occur in a particular
installation.
reception, which can be determined by turning the equipment
encouraged to try to correct the interference by one

1.

Reorient the receiving antenna.

2.

Increase the separation between the equipment and receiver.

3. Connect the equipment into an outlet on a circuit different from that to which the receiver

4. Consult the dealer
This device complies with Part

conditions:

1.

This

interference received, including interference that may cause undesired operation.
Notice to user: Changes or modifications to this product not approved

responsible for FCC compliance could void your authority to operate this equipment.
In order

device, shielded cables

The information contained in this document
Logic, Inc. reserves the right to make amendment without further notice.

All rights reserved. This document may not, in whole or part, be copied; photocopied,
reproduced, translated,
without prior consent, in writing, from Cirrus Logic, Inc.

Copyright 1992, Cirrus Logic, Inc. All rights reserved.

Trademarks
Windows, MS-DOS, and

EGA are trademarks
trademarks

If

is connected.

device

for

an installation

or

this equipment does cause harmful interference to radio or television

or

may

not cause harmful interference and,

must

of

registered trademarks

5

of

the FCC Rules. These limits are designed to provide

or

an experienced radio/TV technician for help.

15

of

FCC Rules. Operation is subject to the following two

of

this product to maintain compliance with the limits for a Class B

be

used for

the

connection

of

Notice

is

accurate and reliable. However, Cirrus

or

reduced to any electronic medium or machine readable form

MS

Word are trademarks

IBM Corporation. All other brand and product names are

of

their respective companies.

of

Microsoft Corporation. PS/

ML-CL542XVIJV1

if

not

installed and used

off

more

2.

any devices external to

and on, the user

of

the following measures:

this device must accept any

by

the party

this

product.

2,

VGA,

Word Perfect 5.X

1. Introduction

Thank you for your purchase on our CL542X VESA standard VGA card. Before you
proceed with installing the card into your computer, make sure your package contain the
following:

1.

One user's manual.

2.

2 driver diskettes.

3. One CL542X VESA VGA card.
Contact your dealer immediately
This manual provides operating instructions for user utilities and installation instructions

for

the display drivers supplied with your CL542X VGA.

The CL542X VGA graphics adapter and drivers support for additional features
Cirrus Logic VGA with greater speed, higher resolution, and more available colors.

1.1. Features on the CL542X :

is

• Fully IBM VGA compatible

• Support VESA standard software

• Support VESA local bus system

• BitBLT for GUI acceleration (5426, 5428 only )

• 64 x 64 hardware cursor

• Support 72Hz vertical scan refresh rate

• VESA standard feature connection

•

Built-in

clock

chip

• Support 256x4 and 256x16 DRAM in !Mb or 2Mb memory
Support VGA, Super VGA, and Enhanced VGA resolution in

•

Resolution

Supported Software drivers

Million simultaneously colors which

Colors

• 640x480

• 800x600

•

•

• 132-colurnn text modes

• 1024x768 64K/colors (2Mb DRAM memory)

• 1280xl024 256/colors (2Mb DRAM memory)

• ACAD drivers

• GEM/3

•

•

•

•

16,

256, 64K, 16.7M/colors (1Mb DRAM memory)

16,

256, 64K/colors (!Mb DRAM memory)
1024x768 16, 256, 64K/colors (1Mb DRAM memory)
1280xl02416

Lotus
Lotus
Ventura Publisher
Microsoft Word

, 256/colors(Interlaccd,

123

V2.X. Symphony, and Report Writer

123

V3.X

and

if

any components are damaged

by

BIOS built in functions

a

true

col

or

(24

bit,

16

million

is

shown as follows :

!Mb

(!Mb

DRAM memory)

Pl

colors)

RAMDAC

DRAM memory)

or

missing.

16,

256, 64K and

of

your

16.

7

•

Word Star

•

• Windows

• OS/2 drivers (Optional)

• Utility

1.2.

Jumper

JP! IRQ9 interrupt control line

Close IRQ9 Enable
Open IRQ9 Disabled

2.

Installation

2.1. Easy installation

The installation utility
and utility software. The installation program

install only those display drivers for software and applications currently in use.

It is important to note that some display drivers need to have the associated vendor's
application program already installed on the system prior to loading the CL542X VGA
display drivers. In other cases, the loading

the vendor's product installation process. Please see the READ.ME in the drivers and utility

diskettes for specific instructions prior to running the installation program.
The installation utility is located on the diskette labeled Display Drivers disk #1. To

install the desired display drivers and utilities, insert the diskette into the
A:[Enter]
INST

ALL[Enter]

Follow the instructions on the screen to install the listed display drivers. At any time you
may

press [Esc] to abort the installation process and go back to DOS . Selected drivers

are simply copied to the specified disk and directory. Applications may require additional

installation as described in the READ.ME

2.2. System setting for CL542X VGA adapter

Important note:

pins

PS/2 compatible adapter cable,

multi-frequency monitor

signal. Some multi-frequency displays have a switch to select
operation; set this switch for "analog" . Check with your display equipment dealer or
display manufacturer for additional information on configuring your monitor.

3.1

drivers

Setting

is

provided to facilitate the smooth installation

If

you are using a multi-frequency monitor, you

is

configured properly for a PS/2 compatible analog VGA

is

menu-driven and allowed you to select and

of

the display driver may be an integral part

of

the display driver diskettes.

and

you

will need

P2

of

the display drivers

may

need a special

to

make sure that

"TTL"

A:

drive, type

or

"analog"

your

of

15

2.3. Installation operation

http://www.computer-museum.net

If

you have followed the installation instructions in this manual, you are now ready to

use

your

with

CL542X VGA eqmpped computer system. Most software that

IBM's
usmg the
package for PS/2 model
manufacturer.

Personal System/2, VGA or

VGA

Card. Just

tum

on

50, 60 or 80 video, VGA,

EGA

your computer system and install your application

will run automatically on your system

or

EGA as instructed by the software

is

compatible

3. Utility software

Several utility programs are supplied with your CL542X VGA. The following section
describes these utilities and how to use them.

CLMODE
SETRES

Windows.

is a program

lets

It

is

located

3.1. Clmode

The Clmode utility allows the user to
video modes supported
interface at the DOS prompt type:

CLMODE [Enter]
The main popup window consists

option or menu. The underlined letter

(or

that

rtem.

Just the underlined letter key to select an option. Note

Clmode, then a mouse driver should first be installed prior to running the Clmode utility.

3.1.1.
Selecting the proper monitor type will allow the CL542X VGA to display the highest

quality_ output

determmes what video modes will be available to your system. It will also determine
the vertical refresh rates available. Generally, the higher the refresh, the better the
screen will look. A description

end

The high refresh option
higher refresh rate. The option will not work on some monitors.
selected,
(?lmode from

disablethe option by typing CLMODE 3 m-[Enter]

Select the

current morutor
the mouse to choose the type
selection box, use the mouse or press the [Tab] key. Press the Save button to set the new
monitor

get a detailed explanation on the monitor types and the
On

some systems the monitor type will be remembered from one session to the next.

To test this, select a monitor type and exit the Clmode program.

For example, press the [Alt] and the underlined letter keys simultaneously or

Choosing

the

tha_t

of

this section.

the

user must verify that the connected monitor can support the option by using

f:be

command line to set video mode

:r,..i:onitor

type and refresh rate will be highlighted initially. Use the keyboard or

type. Press the Cancel button to discard any changes. Press the Help button to

supplied

with

your

CL542X

VGA

to

configure

it's

various

options.

the

user

change

the

operating

resolution

and

the

number

of

colors

from

in

the

Windows

3.1

diskette.

def

me

the type

of

by

the Cirrus Logic VGA. Using

of

a number

attached

it is capable

monitor

of

of

the available monitor types

of

CLMODE allows the user to force some video modes to a

of

of

buttons. Each button represents a different

a button name specifies the hot key combination

with. the attached monitor.

monitor attached and

Clmode's

if

you intend to use a mouse with

The

is

given in table 1 at the

If

12

.

If

any problems are observed,

high refresh

within

set

the

menu-driven

monitor type

Type button. The Monitor Type setup window will be displayed. The

of

monitor attached. To move down to the Refresh Rate

VGA

refresh rates.

Tum

the computer

off

P3

for

ten

seconds. After rebooting the computer, run Clmode and verify whether or not
the monitor that you selected is still enabled.
again in normal use.
to have Clmode save the monitor type in you AUTOEXEC.BAT file. You will be given
this choice after selecting the Save button.

3.1.2. Available video
Select the Video Mode button. The Video Mode Setup window displays all the modes

supported according to the monitor type attached and the amount
present. This list
configuration for use with extended resolution drivers.

3.1.3.

Retrieving
The information in the main window displays the VGA controller type, the BIOS

version number and the amount

Getting

3.1.4.
Clmode provides Help for the following items: Monitor Type, Video Modes, Mouse,

Keyboard and About Clmode. The Monitor Type help window explains the different
capabilities
given in the Video Mode window. The Keyboard and Mouse help windows explain how
to use the keyboard and the mouse to make selections. The About window displays the
Cirrus Logic copyright message and the Clmode version number.

of

3.1.5. Exiting

If

the monitor type was not kept then you should select the option

modes

of

video modes will tell you which are available in your current

the

current

VGA

of

video memory present.

help

each monitor type. The Video Mode help window defmes the information

the

Clmode

controller

If

it is, it should not ever need to be set

of

video memory

status

To exit Clmode at any time, press [Alt] and [F4] keys simultaneously, or click the left
mouse button on
of

the wmdow which
utility exits, the current video mode, monitor type, and VGA refresh rate will be
displayed.

3.1.6. Using
When command line options for CLMODE.EXE are given at the DOS prompt, the

menu-driven windows will not be displayed. Instead, monitor type, video mode and
refresh
CLMODE.EXE are:

rate

the

srstem

Clmode's

will

be

button

1s

shown as a dot),

command

set

at

the

of

the main window (i.e. The top left comer button

or

select the Exit button. When the Clmode

line options

DOS

prompt.

The

command

line options

for

CLMODE [(modenum][+*-11 (m(montype][refresh]]

is

[modenum] mode number

(+*-] + selects 400 lines (default)

* selects 350 lines

- selects 200 lines
[montype] monitor type
[refresh] high or low VGA refresh rate (+

For example, to select mode 3 with high VGA refresh for a Super VGA monitor, type
the following command at the DOS prompt:

3+

CLMODE
Typing an invalid option will display the command line help text. Typing

command line option will display the current Clmode settings. Following

m2+[Enter]

or-)

is

a table

(SJ

as a

of

P4

common monitor types. Resolutions with more than one entry per line in the vertical
frequency column signify the availability

0

2

3

4

5

6

7

IBM 8512
IBM 8513

IBM8503
IBM 8514 31.5
IBM 8515 35.5

NEC2A

NECII

NEC3D

SONY CPD-1340

NEC 3FGx 38.0
Nanao 90655
Nanao 9070U

NEC4D

NEC 4FG

Nanao T240i 48.0

NEC5D

NEC 5FG/6FG 38.0

Nanao T550i 48.0
Nanao T560i 56.5
Nanao T550i 58.0
Nanao T750i 64.0
Nanao 9400i
Nanao 9080i

of

the high refresh option.

H. Freq

31.5

31

.5

35.1

31.5

35.1

35.5

31.5

35.5

37.8

38.0

31.5

48.0

48.0

48.0

31.5

38.0

56.5

48.0

31.5

V. Freq

60/70 640x480, 720x400

60/70

43.5-interlaced
60/70 640x480, 720x400

56 800x600

60/70

56 800x600

43.5-interlaced
60/70 640x480, 720x400

43.5 1024x768*
60 800x600
72

60/70 640x480, 720x400

72
72
60

43.5

60/70

72
72
70 1024x768

43.5 1280x1024*

60/70 640x480, 720x400

72
72
70 1024x768
72
60 1280x1024

Resolution

640x480,

1024x768*

640x480, 720x400

1024x768*

640x480

640x480
800x600

1024x768

1280x1024*

640x480, 720x400

640x480
800x600

640x480
800x600

1024x768

720x400

* interlaced mode
H.Freq horizontal frequency (kHz)
V.Freq vertical frequency (Hz)

P5