Aaeon PCM-4330 User manual

PCM-4330
PC/104 486 CPU Module
with Flat Panel/CRT Interface

Copyright Notice
This document is copyrighted, 1997 by AAEON Technology Inc.
All rights are reserved. AAEON Technology Inc. reserves the right
to make improvements to the products described in this manual at
any time without notice.
No part of this manual may be reproduced, copied, rtanslated or
transmitted in any form or by any means without the prior written
permission of AAEON Technology Inc.Information provided in
this manual is intended to be accurate and reliable. However,
AAEON Technology Inc. assumes no responsibility for its use, nor
for any infringements upon the rights of third parties which may
result from its use.
Acknowledgements
ALI is a trademark of Acer Laboratories, Inc.
AMD is a trademark of Advanced Micro Devices, Inc.
AMI is a trademark of American Megatrends, Inc.
A ward is a trademark of A ward Software Intermational, Inc.
Cyrix is a trademark of Cyrix Corporation.
IBM, PC/AT, PS/2, OS/2 and VGA are trademarks of International
Business Machines Corporation.
Intel and Pentium are trademarks of Intel Corporation.
Microsoft Windows ®is a registered trademark of Microsoft Corp.
SiS is a trademark of Silicon Integrated Systems Corporation.
SMC is a trademark of Standard Microsystems Corporation.
TGU1944GUI is a trademark of Trident Microsystems, Inc.
WDC is a trademark of Western Digital Corporation.
All other product names or trademarks are properties of their
respective owners.
Part No. 2007433000 PCM-4330 Rev.A1 1st Ed.
Printed in Taiwan March 1997

Packing list
Before you begin installing your card, please make sure that the
following materials have been shipped:
• 1 PCM-4330 CPU card
• 1 SVGA adapter (10-pin to 15-pin)
• 1 Power supply adapter (8-pin to 4-pin)
• 2 Com port adapter (10-pin to 9-pin)
• 1 Universal-LCD adapter (40-pin to 44-pin)
• 1 System interface connector (10-pin)
• 2 hard disk drive (IDE) interface cable (40-pin for 1.8"/2.5" or
3.5" HDD)
• 1 floppy disk drive interface cable (34-pin)
• 1 parallel port adapter (26-pin to 25-pin)
• 1 utility disk )Flash BIOS program, Watchdog for Windows
Librarym and Demo Program)
• 2 utility disks with SVGA utility programs
• PC/104 module mounting supports
If any of these items are missing or damaged, contact your
distributor or sales representative immediately.

PCM-4330 Features
PC/104-Board-Computer with 486SX, 486DX2, or 486DX4
n High MTBF
n PC/104 standard size
n High frequency mains shielded between GND and VCC layer
n Flash-Memory for BIOS and customer specific extensions
n SVGA, LC-display, keyboard, IDE-/AT-bus and floppy disk interface, one par-
allel and two serial ports on-board
n Silicon disk for fast loading and booting of operating system optional
n Loudspeaker control
n Watchdog function
SIS-85C471-AT-Controller
n Includes components, which are compatible to: 82C37A-DMA,
n 82C54-Timer, 82C59-Interrupt-Controller, 82288-Bus-Controller, and 82284-
Clock-Generator
n Supports 70 ns DRAM modules providing a total of 1 MB, 4 MB and 16MB
system memory on-board
n Memory controller with Page Mode
n Supports shadow RAM between 768 kB and 1 MB
n Memory remap of 256 kB to segments D000h and E000h with more than 1 MB
memory installed and shadow disabled
n Supports synchronous and asynchronous bus timing
SMC-FDC37C92x-Ultra-I/O-Controller
n SuperCellTM technology
n Licenced CMOS 765B-Floppy-Controller
n IDE hard disk interface
n Two NS16550-compatible serial ports with 230k baud and full modern support
n ChiProtectTM protected parallel port can operate in standard mode, enhanced
mode, as an enhanced parallel port (EPP), or extended
n capabilities port (ECP)
Award-Modular-BIOS
n Modular BIOS
n Testing and initialization of all PCM-4330 hardware components
n Supports all IBM-AT03-compatible traps

WD90C24-Controller
n 32 bit memory interface
n 1 MB display memory
n Hardware drag of lines under MS-Windows (Strip Line)
n Hardware pane of screen segments under MS-Windows (BitBLT)
n Character set loading into display memory for screen segments outside visible
area
n CRT connector with integrated RAMDAC
n Monochrome STN-LCD connector with 64 shades of gray
n Color D STN or TFT-LCD connector
n Plasma-display connector
WD-VGA-BIOS
n Version 7.22A
n All IBM VGA standard modes and all VESA Super VGA modes
n Extended CRT mode with 132 columns
n 48 kB Video BIOS
n All VGA traps are supported
n Simultaneous display on CRT and LC-display possible

1
1.1
1.2
1.3
2
2.1
2.1.1
2.1.2
2.1.3
2.1.4
2.2
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.2.8
2.3
2.3.1
2.4
2.4.1
3
3.1
3.2
3.2.1
3.2.2
11
12
13
14
15
15
16
17
18
19
20
23
24
25
26
28
30
31
33
35
36
41
43
45
45
46
46
46
Introduction
Product Introduction
Compatibility
Reference Documents
PCM-4330-Installation
Hardware Installation
Jumper JP1: Panel Off Signal
Jumper JP2: Contrast Voltage
LC-Display Configuration Switches
Installing the PC/104-Module
Setup
Time and Data
AT Hard Disk
Floppy Disk
Boot Features
Standard Chipset
Timeout
Peripherals
Peripherals(Advance)
MS-DOS SVGA Software
Driver Installation
MS-Windows SVGA Software
Driver Installation
Layout and Functions
Block Circuit Diagram
General Layout
Processor (CPU)
Memory
Table of Contents

47
47
47
47
47
47
48
48
48
48
48
48
48
49
49
51
52
52
54
58
59
60
61
62
63
64
65
Cache
DMA Controller
Interrupt Controller
Timer
Real-time Clock (RTC)
Keyboard Controller
Loudspeaker
Reset Logic
A20 Logic
Port B and NMI Logic
Video Controller
Floppy Disk Controlles
IDE-/AT-Bus
Parallel Port LPT1
Serial Ports COM1 and COM2
Hardware Interfaces
PC/104-Bus
PC/104-Bus Pin Assignment
Signal Description
System Interface
Power Supply
Floppy Disk Interface
IDE-/AT-Bus Interface
SVGA Display Connector
Universal LCD Connector
Parallel Port (Centronics)
Serial Ports
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
3.2.10
3.2.11
3.2.12
3.2.13
3.2.14
3.2.15
3.2.16
3.2.17
4
4.1
4.1.1
4.1.2
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9

5
5.1
5.2
5.3
5.3.1
5.3.2
5.4
5.5
5.6
5.6.1
5.6.2
5.7
5.7.1
5.7.2
5.8
5.8.1
5.9
5.10
5.11
5.12
5.13
6
6.1
6.1.1
6.1.2
6.1.3
Software interfaces
Address Summary of System Memory
Interrupt Channels
DMA Channels
DMA Channel Assignment
DMA Address Generation
Port A
Port B
MicroDesign Feature Port
Setting the Base Address
Feature Port Register Description
Real-Time Clock/CMOS-RAM
RTC/CMOS-RAM Address Assignment
RTC/CMOS-RAM Operations
System Timer
Timer Programming
NMI Logic
Keyboard Interface
Floppy Disk Controller
Parallel Port
Serial Port
Firmware
POST (Power On Self Test)
Signal Tone Error Messages
On-screen Error Messages
POST Codes
67
67
68
69
69
69
69
70
71
71
72
84
84
84
85
85
86
86
86
87
87
89
89
89
90
93

SVGA-BIOS Calls (INT 1Oh)
Standard IBM VGA-compatible BIOS Calls (INT 1Oh)
Extended BIOS Calls (INT 1Oh)
VESA SuperVGA BIOS Calls (INT 1Oh)
Technical Specifications
Electrical Specifications
Environment Conditions
Dimension Sketch
Appendix A: Troubleshooting
Appendix B: LC-Displays
Appendix C: Silicon Disk
Appendix D: Installing PC/104 Modules
6.2
6.2.1
6.2.2
6.2.3
7
7.1
7.2
7.3
95
95
103
106
109
109
109
110
111
113
123
125

11
Introduction
This manual describes the PCM-4330 PC/104 board computer with 486SX,
486DX2, or 486DX4 CPU as a PC/104 module.
1
Figure 1, PCM-4330 with 486SX, 486DX2, or 486DX4-CPU (Top and Bottom View)
Several notes in the text refer to product documentation not included in this man-
ual. If you need more comprehensive and detailed information, please refer to data
sheets and documents listed under chapter 1.3.

12
Product Introduction
The PCM-4330 serves as a processor board in a PC/104 environment and provides
for a fully ISA-compatible computer system.
The system is built using the SIS-85C47i. This chip contains on a single VLSI
componentthemainelementsofanISAsystembyimplementingDMA,memory,bus,
interrupt controller, memory mapper, and timer.
For addressing peripheral devices, a chip from Standard Microsystem Corpora-
tion (SMC) is used on the board. The FDC37C92x-Ultra-I/O-Controller, built in
SuperCelTM technology, includes IDE-/AT-bus, floppy disk, keyboard, serial, and
parallel port controllers, as well as a real-time clock.
The WD90C24 controller, addressing 1 MB of video memory via a 32 bit wide
data bus, is used to control video output. The controller accelerates the screen dis-
play of window systems like MS-Windows by hardware support of CPU intensive
screen operations. The graphics board supports all VGA, SVGA and Paradise en-
hanced video modes.
Design
The PCM-4330 board is AT-compatible including all interfaces. All software writ-
ten for Intel 8086, 80286, 80386, 80486, and compatible processors runs on this
board. It is built and fired in double-sided SMD technology requiring minimum
space for a maximum of functions.
Processor
The 486SX, 486DX2, and 486DX4 CPUs offer virtual addressing capabilities, inte-
grated MMU, 4-level memory protection in multi-user-mode (Protected Virtual
Address Mode). 1 MB physical memory can be addressed in Real-Address-Mode
and 4 GB in Protected Mode. Maximum virtual memory in Protected Mode is 64
TB.
Co-processor
All DX-CPUs used for the PowerDwarf feature on-chip math co-processors.
Cache
Presently available CPUs from the i486 family include 8 kB 4-way-on-chip-cache
used for data and code caching by the CPU.
Main Memory
With respect to the 486SX, 486DX2, and 486DX4 CPU capabilities, main memory
is addressed with an access width of 32 bit. RAM memory is parity checked. Two
DRAM modules with access times of 70 ns are used in sockets providing 1 MB
with/without parity (256K x 16 or 256K x 18), 4MB with/without parity (1M x16 or
1M x 18), or 16MB (4M x 16) on-board system memory.
1.1

13
Silicon Disk
The PCM-4330 board can optionally be fitted with a 28F016SV (2MB) or 28F032SV
(4 MB) flash module to provide a silicon disk, Data, programs, or operating soft-
ware can be permanently stored on this disk. Data is accessed in16 kB banks that are
paged into the address space of the processor.128 kB from the available memory
space of the flash module is used for the System-BIOS.
Video Controller
The Western Digital WD90C24 video controller can address various monochrome
or fiat panel displays directly, as well as all SVGA monitors. Depending on the
LCD display connected, an additional CRT display may be used simultaneously.
The WD90C24 offers accelerated display of windows via integrated hardware func-
tions (such as Bit Block Transfer). Frame buffers and font-caching are also sup-
ported.
Video Memory
The 1 MB video memory on the VGA controller is addressed directly via a 32 bit
wide interface from the video controller. The size of the video memory allows for a
resolution of 1024 x 768 pixels (256 colors) on LED and CRT displays.
ROM-BIOS
A 64 kB segment at address F000h is reserved for the Award ROM-B IO S. All
AT03-compatible traps are included in this address space.
The Western Digital VGA-BIOS for the WD90C24 video controller uses 48 kB
in the physical address space of the computer, starting at segment C000h. All VGA-
, SVGA- and VESA-compatible video traps are supported by the BIOS.
The memory area is fitted with a 29F010 (128 kB), 29F020 (256 kB), or 29F040
(512 kB) Flash-Memory. Alternatively, the board can be equipped with a28F0xGSV
(1 MB) or 28F032SV (4 MB) module to provide memory space for the BIOS and a
silicon disk.
Interfaces
The PCM-4330 board includes the most important interfaces on-board. Two serial
and one parallel port, keyboard, floppy disk and an IDE hard disk controller are
included and can be configured by software. A SVGA connector is available, as
well as a connector for monochrome or color LC-display. The PCM-4330 single
board computer features an expansion slot according to the PC/104 norm.
Compatibility
The board is fully XT/AT-compatible. All available expansion cards complying
with the PC/104 norm can be used with the PCM-4330.
1.2

14
Reference Documents
[1]ISA-Bus-Spezifikation S2636I-XXX-X-*-59 (allgemein)
[2]Intel-Microprocessors: Volume II
[3]Data-Manual SIS-85C471 Green PC ISA-VESA Single Chip
[4]Data-Manual FDC37C92x-Ultra-I/O-Controller (SMC)
[5]Data-Manual Intel Flash Memory: Volume I
[6]Data-Sheet WD90C24 (Western Digital)
[7]WD90C24 Windows Accelerated High Resolution VGA LCD
Controller for Low Power Applications (Western Digital)
[8]WD90C24 VGA Controller BIOS Specification (Western Digital)
1.3

15
PCM-4330-Installation
Before installing the PCM-4330 PC/104 board computer please read the follow-
ing notes very carefully. You must adhere to these rules to avoid damaging compo-
nents:
n Before touching the board or any other component, discharge your body by
touching a grounded object such as the metal chassis of the computer.
n Tools used to install the board must be free of static charges.
nAlways remove the power cord from the system before installing or removing
components.
n Handle the board carefully, holding it by its edges only.
n Do not touch components on the board, connecting pins, or exposed circuits on
the board.
Hardware Installation
The PCM-4330 is installed in a PC/104 system taking over all functions of a mod-
ern ISA-compatible computer system.
Please observe all notes listed above before installing the module.
2
Ifthesystem does not operate as anticipated after installation, please
refer to Appendix A: Troubleshooting.
2.1

16
Jumper JPI: Panel Off Signal
Jumper JP1 sets the polarity for the LC-display panel off signal. Please refer to
figure 9. for the exact location of jumper JP1
3
2
1
JP1
Figure 2, Jumper JP1
3
2
1
3
2
1
1 - 2 closed: Panel off at high (1)
Jumper JP1: Panel Off Signal
2.1.1
2 - 3 Closed: Panel off at low (0)
Table 1, Jumper JP1

17
Jumper JP2: Contrast Voltage
Jumper JP2 on the PCM-4330 board selects the contrast voltage polarity (positive
or negative) for LC-displays. Use the onboard contrast control to set the maximum
contrast voltage. The corresponding value in the setup menu must be set to “o”.
After adjustment, software can only select contrast voltage to less than the maxi-
mum set.
2.1.2
Check with the display documentation prior to any adjustment to
ensure that the connected LC-display is capable of supporting the
selected voltage. Unsupported values might damage the display.
See figure 3 for the exact location of jumper JP2:
3
2
1
JP2
3
2
1
3
2
1
1 - 2 closed: Negative contrast voltage
Jumper JP2: Contrast Voltage
2 - 3 Closed: Positive contrast voltage
Figure 3, Jumper JP2
Contrast Control
Table 2, Jumper JP2

18
LC-Display Configuration Switches
The PCM-4330 single board computer features a DIL-switch with 8 keys for easy
configuration of a connected LC-display. See Appendix B: LC-Displays for a selec-
tion of displays and the corresponding settings of switches SW.1 to Sw.8. See fig-
ure 4 for the location of the configuration switches.
2.1.3
8 7 6 5 4 3 2 1
Configuration Switches
Configuration Switches
Key Setting
SW.1 reserved
SW.2 on: CRT, off: CRT and LCD simultaneous
SW.3 Display type 0
SW.4 Display type 1
SW.5 Display configuration 0
SW.6 Display configuration 1
SW.7 Display configuration 2
SW.8 Display configuration 3
Table 3, Configuration Switches
Figure4 Configuration Switches

19
Installing the PC/104-Module
The PCM-4330 is installed in a PC/104 system and takes over the function of the
CPU. Please observe the following guidelines for the installation of the module:
2.1.4
8Switch off the computer system.
8Remove the power cord.
8Remove the cover or housing of the computer system
8If a PC/104-CPU-board, VGA graphics adapter, IDE-hard disk or floppy disk
controller is installed in the system, remove it. The PCM-4330 comprises all
functions of these boards.
8Carefully install the PCM-4330 in the PC/104 system. The board features four
holes for safe fastening and a connector for the installation on a PC/ 104 bus.
8Connect all cables and connectors with the appropriate interfaces (system,LPT1,
COM1, COM2, VGA/LCD, IDE hard disk, floppy disk, and power). See chap-
ter 4.
8Replace the housing cover and plug in the power cord.
8Switch on the computer system.
8Call the Setup-Menu.
Check that jumpers Jp1 and Jp2 and all configuration switches are
set correctly before installation.

20
2.2
Figure 5, Setup Main Menu
Setup
The PCM-4330 board features an integrated setup program to easily select and adapt
the system configuration, such as number and type of floppy disk or hard disk drives
installed. Configuration details are stored in a battery-buffered RAM area retaining
all information even when the system is switched off.
Tne following messages are displayed during system boot: