Microspace MSMVGA User manual

PC/104 Peripheral boards
MSMVGA
65545 based VGA/LCD controller
#260399-1
Nordstrasse 11/F, CH-4542 Luterbach
Tel.: ++41 (0)32 681 53 33 - Fax: ++41 (0)32 681 53 31
TECHNICAL USER'S MANUAL FOR:

DIGITAL-LOGIC AG MSMVGA Manual V1.0
2
COPYRIGHT 

1998-1999 BY DIGITAL-LOGIC AG
No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, in
any form or by any means, electronic, mechanical, optical, manual, or otherwise, without the prior
written permission of DIGITAL-LOGIC AG.
The software described herein, together with this document, are furnished under a license agreement
and may be used or copied only in accordance with the terms of that agreement.
REVISION HISTORY:
Prod.-Serialnumber:
From: To: Product Version Document Version Date/Vis: Modification: Remarks, News, Attention:
V1.0 V0.1b 01.99 JM Initial Version
V0.2 02.99 JM Jumper Location
V1.0 V1.0 03.99 JM Released Version
Registration Form:
Please register your product under:
http://www.digitallogic.ch -> SUPPORT -> Product Registration
After registration, you will receive driver & software updates, errata information, customer information
and news from DIGITAL-LOGIC AG products automatically.

DIGITAL-LOGIC AG MSMVGA Manual V1.0
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Table of Contents
1PREFACE...............................................................................................................4
1.1 How to use this Manual...........................................................................................4
1.2 Trademarks.............................................................................................................4
1.3 Disclaimer ...............................................................................................................4
1.4 Who should use this product...................................................................................4
1.5 Recycling Information..............................................................................................5
1.6 Technical Support ...................................................................................................5
1.7 Limited Warranty.....................................................................................................5
2 MSMVGA SPECIFICATIONS....................................................................................6
3 VGA, LCD............................................................................................................7
3.1 VGA / LCD Controller 65540/45 ..............................................................................7
3.2 VGA/LCD BIOS Support ....................................................................................... 10
4SOFTWARE ..........................................................................................................10
4.1 Available Drivers ...................................................................................................10
5 Description of the Connectors .......................................................................11
5.1 VGA-Connector Analog Interface for Monitors ...................................................... 11
5.2 VGA Connector for Flatpanel Display.................................................................... 12
6JUMPER LOCATIONONTHEBOARD........................................................................13
6.1 The Jumpers on this MICROSPACE product........................................................ 13
6.1.1 Flatpanel Interface..........................................................................................13
6.1.2 Standby the VGA Controller:........................................................................... 13
6.1.3 Selection of the BIOS Address........................................................................ 13
6.1.4 16-Bit CPU Interface:......................................................................................13
6.1.5 Selection of the Flash Sector..........................................................................14
6.1.6 VEE Generator supply.................................................................................... 14
6.1.7 Enable VEE Output at the J4.......................................................................... 14
6.2 Jumper Locations.................................................................................................. 15
7SPECIAL PERIPHERALS,CONFIGURATION,FUNCTIONS............................................16
7.1 Onboard BIAS Power generation (only on the MSMV104L) ................................. 16
7.1.1 VEE Generation.............................................................................................. 16
7.1.2 Selection of the polarity VEE...........................................................................16
7.1.3 Adjustment of the voltage ...............................................................................16
7.1.3.1 Positive voltage with 5V input...................................................................... 16
7.1.3.2 Negative voltage with 5V input..................................................................... 17
8POSSIBLE FAILURES.............................................................................................18
8.1 General LCD Failures............................................................................................ 18
8.2 The LCD is not stable............................................................................................18
9INDEX..................................................................................................................19

DIGITAL-LOGIC AG MSMVGA Manual V1.0
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1PREFACE
This manual is for integrators and programmers of systems based on the MICROSPACE card family.
It contains information on hardware requirements, interconnections, and details of how to program the
system. The specifications given in this manual were correct at the time of printing; advances mean
that some may have changed in the meantime. If errors are found, please notify DIGITAL-LOGIC AG
at the address shown on the title page of this document, and we will correct them as soon as
possible.
1.1 How to use this Manual
This manual is written for the original equipment manufacturer (OEM) who plans to build computer
systems based on the single board MICROSPACE-PC. It provides instructions for installing and
configuring the MSMVGA board, and describes the system and setup requirements.
1.2 Trademarks
Chips & Technologies SuperState R
MICROSPACE, MicroModule DIGITAL-LOGIC AG
DOS Vx.y, Windows Microsoft Inc.
PC-AT, PC-XT IBM
NetWare Novell Corporation
Ethernet Xerox Corporation
DR-DOS, PALMDOS Digital Research Inc. / Novell Inc.
ROM-DOS Datalight Inc.
1.3 Disclaimer
DIGITAL-LOGIC AG makes no representations or warranties with respect to the content of this
manual and specifically disclaims any implied warranty of merchantability or fitness for any particular
purpose. DIGITAL-LOGIC AG shall under no circumstances be liable for incidental or consequential
damages or related expenses resulting from the use of this product, even if it has been notified of the
possibility of such damage. DIGITAL-LOGIC AG reserves the right to revise this publication from time
to time without obligation to notify any person of such revisions. If errors are found, please contact
DIGITAL-LOGIC AG at the address listed on the title page of this document.
1.4 Who should use this product
- Electronic engineers with know-how in PC-technology.
- Without electronic know-how we expect you to have questions. This manual assumes, that you
have a general knowledge of PC-electronics.
- Because of the complexity and the variability of PC-technology, we can’t give any warranty that the
product will work in any particular situation or combination. Our technical support wil help you.
- Pay attention to the electrostatic discharges. Use a CMOS protected workplace.
- Power supply OFF when you are working on the board or connecting any cables or devices.
This is a high-technology product.
You need know-how in electronics and PC-technology
to install the system !

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1.5 Recycling Information
Hardware: - Print: epoxy with glass fiber
wires are of tin-plated copper
- Components: ceramics and alloys of gold, silver
check your local electronic recycling
Software: - no problems: re-use the diskette after formatting
1.6 Technical Support
1. Contact your local Digital-Logic Technical Support in your country.
2. Use Internet Support Request form on http://www.digitallogic.ch -> support
3. Send a FAX or an E-mail to DIGITAL-LOGIC AG with a description of your problem.
DIGITAL-LOGIC AG
Technical Support Dept. Fax: ++41-32 681 53 31
Nordstrasse 11/F E-Mail: [e-mail]
CH-4542 Luterbach (SWITZERLAND)
Support requests will only be accepted with detailed informations about the product (BIOS, Board
Version) !
1.7 Limited Warranty
DIGITAL-LOGIC AG warrants the hardware and software products it manufactures and produces to
be free from defects in materials and workmanship for one year following the date of shipment from
DIGITAL-LOGIC AG, Switzerland. This warranty is limited to the original product purchaser and is not
trans-ferable.
During the one year warranty period, DIGITAL-LOGIC AG will repair or replace, at its discretion, any
defective product or part at no additional charge, provided that the product is returned, shipping
prepaid, to DIGITAL-LOGIC AG. All replaced parts and products become property of DIGITAL-LOGIC
AG.
Before returning any product for repair, customers are required to contact the company.
This limited warranty does not extend to any product which has been damaged as a result of
accident, misuse, abuse (such as use of incorrect input voltages, wrong cabling, wrong polarity,
improper or insufficient ventilation, failure to follow the operating instructions that are provided by
DIGITAL-LOGIC AG or other contingencies beyond the control of DIGITAL-LOGIC AG), wrong
connection, wrong information or as a result of service or modification by anyone other than DIGITAL-
LOGIC AG. Neither, if the user has not enough knowledge of these technologies or has not consulted
the product manual or the technical support of DIGITAL-LOGIC AG and therefore the product has
been damaged.
Except, as expressly set forth above, no other warranties are expressed or implied, including, but not
limited to, any implied warranty of merchantability and fitness for a particular purpose, and DIGITAL-
LOGIC AG expressly disclaims all warranties not stated herein. Under no circumstances will
DIGITAL-LOGIC AG be liable to the purchaser or any user for any damage, including any incidental or
consequential damage, expenses, lost profits, lost savings, or other damages arising out of the use or
inability to use the product.

DIGITAL-LOGIC AG MSMVGA Manual V1.0
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2 MSMVGA SPECIFICATIONS
Controller: 65545 from C&T
Enhanced BIOS: VGA / LCD BIOS
MultiBios Feature
Default Panels: 1. CRT and MONO-LCD Type Sharp Mono LM64P8XX
2. CRT and TFT LCD Type Sharp TFT LQD011 and
Toshiba TFT LTM9C015
3. CRT and STN-Color LCD Type Torisan STN Color LMCA53/22NAZ
4. CRT and EL-Plasma Type Sharp TFT LQ10DH11
Memor
y
:DRAM onboard: 1 MB
y
te
CRT-Monitor: VGA / SVGA
Resolution: up to 768 x 1024 Pixel 64k Colors
Flat
p
anel-Dis
p
la
y
:TFT: 640 x 480 , 800 x 600, 1024 x 768 with 8,9,12,15,16,18 Bits
STN: 640 x 480 , 800 x 600, 1024 x 768 Monochrome
STN: 640 x 480 with 64 colors 2-2/3 and 5-1/3 bit DD and SS
Plasma:640 x 480 to 1280 x 1024
EL: 640 x 350 , 640 x 480, 768 x 1024 Pixels
Connectivit
y
:CRT onl
y
Flatpanel only
CRT and Flatpanel (Default) simultaneous
Contrast Control: 10kOhm software controlled resistor with 100 steps
Backli
g
ht Control: 10kOhm software controlled resistor with 100 steps
Frame Buffer: 64k advanced frame buffer architecture
Supported Standard Panels CRT simultaneous with:
with MultiBIOS: 1. MONO STN
2. TFT - FP
3. STN-Color FP
4. EL Panel
see also Flatpanel Support Manual by DIGITAL-LOGIC AG; list with
already adapted flatpanels
Bus: Standard: PC/104
Size: 16 Bit onl
y
Power Su
pp
l
y
:Power Normal: 5V/260mA
Power Suspend: 5V/200mA
Power Sequencing: control by 65545 for VCC, Bias, Backlight
Bias Voltage: -30 to +30 Volt, 40mA
Physical Characteristics: Dimension: Length: 96 mm
Width: 90 mm
Height: 20 mm
O
p
eratin
g
Environment: Relative humidit
y
: 5 - 90 % non condensin
g
Vibration: 5 to 2000 Hz
Shock: 10 g
Temperature: Operating: -25°C to +70°C
Extended: -25°C to +85°C
Orderin
g
Information:
MSMVGAL PC/104 VGA Board with VEE Voltage generation
MSMVGA PC/104 VGA Board without VEE-Voltage generation (CRT and TFTs)
Any information is subject to change without notice.

DIGITAL-LOGIC AG MSMVGA Manual V1.0
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3VGA,LCD
3.1 VGA / LCD Controller 65540/45
The 65540 High Performance Flatpanel/CRT VGA controller
•High integrated design (flatpanel/CRT VGA controller, RAMDAC, clock synthesizer)
•Local Bus (32 Bit CPU)
•Flexible display memory configurations
– Two 256Kx16 DRAM (1024 KB)
•Advanced frame buffer architecture uses available display memory, maximizing integration and
minimizing chip count
•Integrated programmable linear address feature accelerates GUI performance
•Hardware windows acceleration (65545)
- 32-Bit graphics engine
- System-to-screen and screen-to-screen BitBlt
- 3 operand ROPs
- Color expansion
- Optimized for WindowsäBitBlt format
- Hardware line drawing
- 64x64x2 hardware cursor
•Hardware pop-up icon (65545)
- 64x64 pixels by 4 colors
- 128x128 pixels by 2 colors
•High performance resulting from zero wait-state writes (write buffer) and minimum wait-state reads
(internal asynchronous FIFO design)
•Mixed 3.3 V / 5.0 V +/- 10 % Operation
•Supports panel resolutions up to 1280 x 1024, including 800x600 and 1024x768
•Supports non-interlaced CRT monitors with resolutions up to 1024 x 768 / 256 colors
•True-color and Hi-color display capability with flatpanels and CRT monitors up to 640x480
resolution
•Direct interface to Color and Monochrome Dual Drive (DD) and Single Drive (SS) panels (supports
8, 9, 12, 15, 16, 18 and 24-Bit data interfaces)
•Advanced power management features minimize power consumption during:
- Normal operation
- Standby (Sleep) modes
- Panel-Off Power-Saving Mode
•Flexible onboard Activity Timer facilitates ordered shut-down of the display system
•Power Sequencing control outputs regulate application of Bias voltage, +5 V to the panel and
+12 V to the inverter for backlight operation
•SMARTMAPäintelligent color to gray scale conversion enhances text legibility
•Text enhancement feature improves white text contrast on flatpanel displays
•Fully Compatible with IBMäVGA

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65545 Display Capabilities
CRT Mode Mono LCD DD STN LCD 9-Bit TFT LCD Video Simultaneous
Resolution Color4Gray Scales 4Colors 2, 3, 4 Colors 1, 2, 3, 4 Memory Display
320x200 256 /256K61 / 61 256 / 226,981 256 / 185,193 512 KB yes
640x480 16 / 256K16 / 61 16 / 226,981 16 / 185,193 512 KB yes
640x480 256 / 256K61 / 61 256 / 226,981 256 / 185,193 512 KB yes
800x600 16 / 256K16 / 61 16 / 226,981 16 / 185,193 512 KB yes with 1 MB
800x600 256 / 256K61 / 61 256 / 226,981 256 / 185,193 512 KB yes with 1 MB
1024x768 16 / 256K16 / 61 16 / 226,981 16 / 185,193 512 KB yes with 1 MB
1024x768 256 / 256K61 / 61 256 / 226,981 256 / 185,193 1 MB yes
1280x1024 16 / 256K16 / 61 n/a n/a 1 MB n/a
Notes:
1 Larger color palettes and simultaneous colors can be displayed on 12-Bit, 18-Bit, and 24-Bit TFT panels via the
65540/545 video input port.
2 Includes dithering.
3 Includes frame rate control.
4 Colors are described as number of simultaneous on-screen colors and number of unique colors available in the color
palette. 256K colors assumes DAC output mode is set to 6 bits of R, G & B. If DAC is set to 8-Bit output mode, the
number of available colors is 16 M.
VGA Controller Chips
C&T 65545 32bit local bus up 1024kRAM hardware accelerator
CRT Displays
The 65545A supports resolution fixed frequency and variable frequency analog monitors in interlaced
and non-interlaced modes of operation. Digital monitor support is also built in.

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Supported VGA Modes
Mode: Type: Colors: CRT: Text: Graphic: DRAM: Monitor: Refresh/HR:
0,1 Text 16 ABC 40 x 25 320 x 200 256k CGA 70 Hz
2,3 Text 16 ABC 80 x 25 640 x 200 256k CGA 70 Hz
4,5 Graphic 4 ABC 40 x 25 320 x 200 256k CGA 70 Hz
6 Graphic 2 ABC 80 x 25 640 x 200 256k CGA 70 Hz
7+ Text Mono ABC 80 x 25 720 x 350 256k HGC 70 Hz
D Planar 16 ABC 40 x 25 320 x 200 256k CGA 70 Hz
E Planar 16 ABC 80 x 25 640 x 200 256k CGA 70 Hz
F Planar Mono ABC 80 x 25 640 x 350 256k EGA 70 Hz
10 Planar 16 ABC 80 x 25 640 x 350 256k EGA 70 Hz
11 Planar 2 ABC 80 x 30 640 x 480 256k VGA 60 Hz
12/12+ Planar 16 ABC/BC 80 x 30 640 x 480 256k VGA 60 Hz/72Hz
13 Planar 256 ABC 40 x 25 320 x 200 256k CGA 70 Hz (not 8 Bit Bus)
20 4 Bit Lin 16 ABC 80 x 30 640 x 480 512k VGA 60 Hz
22 4 Bit Lin 16 BC 100 x 37 800 x 600 512k SVGA 60 Hz
30 8 Bit Lin 256 ABC 80 x 30 640 x 480 512k VGA 60 Hz/72 Hz
32 8 Bit Lin 256 BC 100 x 37 800 x 600 512k SVGA 60 Hz/72 Hz
60 Text 16 ABC 132 x 25 1056 x 400 256k MGA 68 Hz
61 Text 16 ABC 132 x 50 1056 x 400 256k MGA 68 Hz
72 Planar 16 C 128 x 48 1024 x 768 512k HVGA 60 Hz
79 Packed 256 ABC 80 x 30 640 x 480 512k VGA 72 Hz
7C Packed 256 BC 100 x 37 800 x 600 512k SVGA 72 Hz
supported on MSM486DX boards version 4.0 with 1Mbyte videoram.
24 4 Bit Lin 16 C 128 x 48 1024 x 768 1024k HiVGA 60 Hz
26 4 Bit Lin 16 BC 128 x 48 1024 x 768 1024k HiVGA 43 Hz
34 8 Bit Lin 256 C 128 x 48 1024 x 768 1024k HiVGA 60 Hz
36 8 Bit Lin 256 BC 128 x 48 1024 x 768 1024k HiVGA 43 Hz
40 15 Bit Lin 32k ABC 80 x 30 640 x 480 1024k VGA 60 Hz
41 16 Bit Lin 64k ABC 80 x 30 640 x 480 1024k VGA 60 Hz
7E Packed 256 C 128 x 48 1024 x 768 1024k HiVGA 60 Hz
A = PS/2 fixed frequency analog monitor;
B = Multifrequency CRT monitor like NEC Multisynch 3D or eq.
C = Nanao/EIZO 9070, NEC Multisynch 5D, or eq.
Simultaneous Flatpanel / CRT Display
The 65540/45 provides simultaneous display operation with Multi-Sync variable frequency or PS/2
fixed frequency CRT monitors and single panel-single drive LCDs (LCD-SS), dual panel-single drive
LCDs (LCD-DS), dual panel-dual drive LCDs (LCD-DD) and plasma and EL panels (which contains
single panel-single drive interfaces). Single drive panels sequence data in the same manner as CRTs
so the 65540/45 provides simultaneous display with CRTs and LCD-SS, LCD-DS, plasma or EL
panels by driving the panels with CRT timing. No external hardware is required. In contrast, LCD-DD
panels require video data alternating between separate locations in the memory. In addition, a dual-
drive panel requires data from both locations simultaneously. The 65540/45 also provides
simultaneous display with LCD-DD and CRT monitors without using external VRAMs.
The internal VRAM frame buffers offer significant advantages relative to competitors' DRAM frame
buffers. A DRAM frame accelerator requires that the flatpanel is refreshed at double of the CRTs
vertical refresh rate. Therefore, an expensive 6.3 MHz LCD (with 120 Hz panel vertical refresh rate) is
required for simultaneous display with 60 Hz CRT monitors when a DRAM frame buffer is used. Due
to its higher bandwidth relative to DRAMS, a VRAM frame buffer can refresh both the flatpanel and
CRT at the same vertical refresh rate. Therefore, inexpensive 3 MHz and 6 MHz LCDs (in addition to
6.3 MHz LCDs) can be used for simultaneous display with 60 Hz and 72 Hz CRT monitors when a
VRAM frame buffer is used.

DIGITAL-LOGIC AG MSMVGA Manual V1.0
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Simultaneous Display
CRT: +Flatpanel type: Needed modifications:
CRT + Mono Single Drive STN LCD none
CRT + Mono Dual Drive STN LCD none
CRT + Mono Single Drive TFT LCD none
CRT + Color Single Drive STN LCD none
CRT + Color Single Drive TFT LCD none
3.2 VGA/LCD BIOS Support
Each LCD display needs a specific adapted VGA-BIOS.
Standard this product is equiped with the CRT standard VGABIOS.
To connect a LCD Display to this product, you need to perform the following:
1. Check the FP_LIST.PDF if the LCD BIOS is available.
Get the latest VGA-BIOS at our webpage http://www.digitallogic.ch
4SOFTWARE
4.1 Available Drivers
he MICROSPACE Application CD contains a lot of various drivers.
CD:\drivers\display\vga45\ Drivers for
dos DOS
nt4 Windows NT4.0
w95_vl Windows 95 VESA
win311 Windows 3.11
win311_vl Windows 3.11 VESA
win95 Windows 95

DIGITAL-LOGIC AG MSMVGA Manual V1.0
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5 Description of the Connectors
5.1 VGA-Connector Analog Interface for Monitors
VGA-Connector MICROSPACE Product
Signal Name Sub-D 15 pol MSMVGA/L
Pin No. Header Pin No.
VGA red 1 32
VGA green 2 34
VGA blue 3 36
Horizontal Sync. 13 38
Vertical Sync. 14 39
Ground 7 31
Bridge 8 + 11

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5.2 VGA Connector for Flatpanel Display
J4 LCD Connector
VGA-LCD Interface (flatpanel signals):
Signals P20-P23 are located on the J4M connector
Pin Signal Pin Signal
1 M-Signal (altern. DE) 2 FLM
3 P18 4 Line Pulse LP
5 VCC 6 GND
7 Switched VDD (5V/1A) 8 Shift Clock
9 Switched B’light (12V/1A) 10 P3
11 P2 12 P17
13 P1 14 P16
15 P0 16 P7
17 Enable VEE (TTL) 18 P6
19 VCC Panel (5V/3,3V) 20 P5
21 P4 22 P19
23 P8 24 P9
25 P10 26 P11
27 P12 28 P13
29 P14 30 P15
ThePin9issuppliedfrom (+12V).
J4 VGA Monitor (CRT-Signals)
J4 Header 15 pins HiDensity DSUB
40 Pin Signal Pin Signal
Pin 32 VGA red Pin 1 Red
Pin 34 VGA green Pin 2 Green
Pin 36 VGA blue Pin 3 Blue
Pin 38 Horizontal Synch Pin 13 H-Synch
Pin 39 Vertical Synch Pin 14 V-Synch
Pin 8 + 11 Bridge
Pin 31 Ground Pin 7 Ground
Pin 5 not connected
Pin 33 LCD-P20
Pin 35 LCD-P21
Pin 37 LCD-P22
Pin 40 LCD-P23 or VEE *
The VGA-CRT signals from J4 must be wired to a standard VGA HiDensity DSub connector (female):
*) Pin40 function is selected by the J27.
Solderside view of the female 15pin HiDSub
1 2345
Red Green Blue GND
67 8910
GND
11 12 13 14 15
Hsyn VSyn

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6JUMPER LOCATION ON THE BOARD
6.1 The Jumpers on this MICROSPACE product
6.1.1 Flatpanel Interface
Flatpanel Interface: 1-2 2-3
J6 Flatpanel Interface:
VEE-Polarity negative -35V positive +35V
6.1.2 Standby the VGA Controller:
Standby the VGA Controller: 1-2 2-3
J9 (smd jumper) Standby the VGA Controller: StnBY active
(Default) Standby
6.1.3 Selection of the BIOS Address
Function: Jumper Position, Address: Jumper Position, Address:
J10 Selection of the BIOS Address
FLASH Boot process: Flash
Operation
1-2 = C000 2-3 = C800
6.1.4 16-Bit CPU Interface:
16-Bit CPU Interface: Default-16 Bit:
J13 (smd jumper) SMEMR-MEMR closed = not used
open = 16Bit
J14 (smd jumper) SMEMW-MEMW closed = not used
open = 16Bit

DIGITAL-LOGIC AG MSMVGA Manual V1.0
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6.1.5 Selection of the Flash Sector
(for using C800-CFFF, as alternate Flash-BIOS Memory, use the 64k-GAL. The standard
implementation is 32k-GAL!)
J18, J19 Selected Sector: J18 J19
Sector 1 (Default) open open
Sector 2 closed open
Sector 3 open closed
Sector 4 closed closed
6.1.6 VEE Generator supply
If there is an external 12V power supply at the PC/104 BUS PIN B9, switch the Jumpers J25 and J26
to 2-3. With 12V at the VEE generator the stability of the VEE range is improved. VEE Range -35V to
+35V.
Jumper Function PIN PIN
J25 VEE Generator supply 1-2 = 5V * 2-3 = 12V
J26 VEE Generator supply 1-2 = 5V * 2-3 = 12V
•Default
6.1.7 Enable VEE Output at the J4
Pin 40 is selectable to output VEE supply or the P23
ATTENTION:
Select never the J27 to VEE-Output if a LCD is
connected with the digital P23 signal on the Pin 40
of the J4 (LCD-Outputconnector) !
The LCD will be destroyed immediately with the
overvoltage of the VEE generator !
Jumper Function
J8 N/A
J28 N/A
J29 N/A

DIGITAL-LOGIC AG MSMVGA Manual V1.0
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6.2 Jumper Locations
DIGITAL-LOGIC AG
MSMVGA V1.0
JMP-LOCATION
TOP-SIDE 0299 JM
J13J14
J9
J8
J4 - VGA/LCD CONNECTOR
J28
J29
J27
J6
R72
J25
J26
J18
J19
J10
U14
U13
1
1
1
1
1
1
1
1
1

DIGITAL-LOGIC AG MSMVGA Manual V1.0
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7SPECIAL PERIPHERALS,CONFIGURATION,FUNCTIONS
7.1 Onboard BIAS Power generation (only on the MSMV104L)
On the MSMV104L (low cost) board is no BIAS generator implemented.
IMPORTANT:
The onboard voltage generation must be adjusted and measured before the
LCD panel is connected, otherwise the display may be destroyed.
Follow these steps:
7.1.1 VEE Generation
If there is an external 12V power supply at the PC/104 BUS PIN B9, switch the Jumpers J25 and J26
to 2-3. With 12V at the VEE generator the stability of the VEE range is improved. VEE Range -35V to
+35V.
7.1.2 Selection of the polarity VEE
Some displays use positive, other use negative BIAS voltages. Refer to the datasheet of the flatpanel
in order to find out the correct polarity. With the polarity jumper J6 (see Jumper) the definition is
made.
7.1.3 Adjustment of the voltage
The voltage may be varied between 35V and 15V with the selected polarity.
The current depends on the input voltage and the load. Check the following diagrams:
7.1.3.1 Positive voltage with 5V input

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7.1.3.2 Negative voltage with 5V input

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8POSSIBLE FAILURES
8.1 General LCD Failures
Refer to the Flatpanel Manual by DIGITAL-LOGIC AG.
1. Check the LCD-BIOS. You have a special BIOS for every LCD.
2. Check the cable to the LCD.
3. Check the Jumper.
4. Check the power supply.
8.2 The LCD is not stable
TrytoplacearesistorattheVEEtotheGND.
This occurs to LCDs which do not consume enough current. Try to raise the resistor values as much
as possible.
LCDMSMV 10K-22K
VEE

DIGITAL-LOGIC AG MSMVGA Manual V1.0
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9INDEX
1
16-Bit CPU Interface:...........................................14
C
CRT Displays.........................................................9
F
Failures................................................................19
Flash-BIOS Memory, ...........................................15
J
Jumper Locations ................................................16
jumpers................................................................14
L
LCD Connector....................................................13
LCD Controller.......................................................8
LCD is not stable .................................................19
N
Negative voltage with 5V input ............................18
P
Positive voltage with 5V input..............................17
S
Selection of the BIOS Address............................14
Selection of the Flash Sector...............................15
Selection of the polarity VEE...............................17
Simultaneous display...........................................11
Standby the VGA Controller ................................14
V
VEE Generation...................................................17
VEE Generator supply.........................................15
VEE-Polarity ........................................................14
VGA.......................................................................8
VGA Controller Chips ............................................9
VGA Modes .........................................................10
VGA Monitor........................................................13
VGA-Connector Analog Interface for Monitors....12