User Manual
PCA-6742
Half-Size CPU Card
Copyright
The documentation and the software included with this product are copyrighted 2008
by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right
to make improvements in the products described in this manual at any time without
notice. No part of this manual may be reproduced, copied, translated or transmitted
in any form or by any means without the prior written permission of Advantech Co.,
Ltd. Information provided in this manual is intended to be accurate and reliable. However, Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringements of the rights of third parties, which may result from its use.
Acknowledgements
Award is a trademark of Award Software International, Inc.
VIA is a trademark of VIA Technologies, Inc.
IBM, PC/AT, PS/2 and VGA are trademarks of International Business Machines Cor-
poration.
Intel and Pentium are trademarks of Intel Corporation.
Microsoft Windows® is a registered trademark of Microsoft Corp.
RTL is a trademark of Realtek Semi-Conductor Co., Ltd.
ESS is a trademark of ESS Technology, Inc.
UMC is a trademark of United Microelectronics Corporation.
SMI is a trademark of Silicon Motion, Inc.
Creative is a trademark of Creative Technology LTD.
All other product names or trademarks are properties of their respective owners.
For more information on this and other Advantech products, please visit our websites
at: http://www.advantech.com
http://www.advantech.com/eplatform
For technical support and service, please visit our support website at:
http://www.advantech.com/support
This manual is for the PCA-6742.
Part No. 2002674200 Edition 1
Printed in Taiwan September 2008
PCA-6742 User Manual ii
Product Warranty (2 years)
Advantech warrants to you, the original purchaser, that each of its products will be
free from defects in materials and workmanship for two years from the date of purchase.
This warranty does not apply to any products which have been repaired or altered by
persons other than repair personnel authorized by Advantech, or which have been
subject to misuse, abuse, accident or improper installation. Advantech assumes no
liability under the terms of this warranty as a consequence of such events.
Because of Advantech’s high quality-control standards and rigorous testing, most of
our customers never need to use our repair service. If an Advantech product is defective, it will be repaired or replaced at no charge during the warranty period. For outof-warranty repairs, you will be billed according to the cost of replacement materials,
service time and freight. Please consult your dealer for more details.
If you think you have a defective product, follow these steps:
1. Collect all the information about the problem encountered. (For example, CPU
speed, Advantech products used, other hardware and software used, etc.) Note
anything abnormal and list any onscreen messages you get when the problem
occurs.
2. Call your dealer and describe the problem. Please have your manual, product,
and any helpful information readily available.
3. If your product is diagnosed as defective, obtain an RMA (return merchandise
authorization) number from your dealer. This allows us to process your return
more quickly.
4. Carefully pack the defective product, a fully-completed Repair and Replacement
Order Card and a photocopy proof of purchase date (such as your sales receipt)
in a shippable container. A product returned without proof of the purchase date
is not eligible for warranty service.
5. Write the RMA number visibly on the outside of the package and ship it prepaid
to your dealer.
Declaration of Conformity
FCC Class A
Note: This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at his own expense.
Caution! There is a danger of a new battery exploding if it is incorrectly installed.
Do not attempt to recharge, force open, or heat the battery. Replace the
battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's
instructions.
iii PCA-6742 User Manual
Technical Support and Assistance
1. Visit the Advantech web site at www.advantech.com/support where you can find
the latest information about the product.
2. Contact your distributor, sales representative, or Advantech's customer service
center for technical support if you need additional assistance. Please have the
following information ready before you call:
– Product name and serial number
– Description of your peripheral attachments
– Description of your software (operating system, version, application software,
etc.)
– A complete description of the problem
– The exact wording of any error messages
Packing List
Before setting up the system, check that the items listed below are included and in
good condition. If any item does not accord with the table, please contact your dealer
immediately.
! 1 PCA-6742 Series Half-size CPU Card
! 1 hard disk drive (IDE) interface cable (40-pin) p/n:1701400452
! 1 keyboard / PS2 mouse cable p/n:1700060202
! 1 COM2 + parallel port cable p/n:1701260305
! 1 USB cable with 4 ports (2.0mm pitch) p/n:1700008887
! 1 Jumper pack p/n:9689000002
! 1 Warranty Certificate
If any of these items are missing or damaged, contact your distributor or sales representative immediately.
PCA-6742 User Manual iv
Contents
Chapter 1 General Information ............................1
1.1 Introduction ............................................................................................... 2
1.2 Specifications ............................................................................................ 2
1.2.1 Standard System On Module functions ........................................ 2
1.2.2 VGA/flat panel Interface................................................................ 2
1.2.3 Audio function ............................................................................... 2
1.3 Mechanical and environmental ................................................................. 2
Chapter 2 Connecting Peripherals ......................3
2.1 Jumper and Connector locations .............................................................. 4
Figure 2.1 Jumper and Connector Locations (component side).. 4
Figure 2.2 Jumper and Connector Locations (solder side).......... 4
2.2 Jumpers and Connectors .......................................................................... 5
Table 2.1: Jumpers...................................................................... 5
Table 2.2: Connectors ................................................................. 5
2.3 Setting jumpers ......................................................................................... 6
2.3.1 Setting details ............................................................................... 6
2.4 Front Panel Connectors (JFP1 & JFP2).................................................... 8
2.5 IR Connector (JIR1) .................................................................................. 9
2.6 IDE Connector (IDE1) ............................................................................... 9
2.7 Compact Flash card Socket (CF1) ............................................................ 9
2.8 Parallel Port Connector (LPT1) ................................................................. 9
2.9 USB Ports (USB12 & USB34)................................................................... 9
2.10 Serial Ports (COM1 & COM2 & COM34) ................................................ 10
2.10.1 COM2 RS-232/RS-422/RS-485 setting ...................................... 10
2.11 PS/2 Keyboard / Mouse connector (KBMS1 & 2) ................................... 10
2.12 VGA connector (VGA1)........................................................................... 10
2.13 Ethernet connector (LAN1) ..................................................................... 10
2.13.1 Network boot ............................................................................... 10
2.14 Front Panel LAN Indicate connector (LANLED1).................................... 10
2.15 System FAN connector (SYSFAN1) ....................................................... 11
2.16 AT power connector (PWR1) .................................................................. 11
2.17 GPIO Header (GPIO1) ............................................................................ 11
2.18 Flat Panel display connector (LCD1 & LVDS1)....................................... 11
2.18.1 TTL TFT LCD connector (LCD1) ................................................ 11
2.18.2 LVDS TFT LCD connector (LVDS1) (Optional) .......................... 11
2.19 PC/104 connector (PC104) ..................................................................... 11
Chapter 3 BIOS Operation..................................13
3.1 BIOS Introduction.................................................................................... 14
3.2 BIOS Setup ............................................................................................. 14
3.2.1 Main Menu .................................................................................. 15
3.2.2 Standard CMOS Feature ............................................................ 16
3.2.3 Advanced BIOS Feature ............................................................. 17
3.2.4 Advanced Chipset Feature ......................................................... 18
3.2.5 Integrated Peripherals................................................................. 19
3.2.6 PnP/PCI Configurations .............................................................. 21
3.2.7 Load Optimized Defaults............................................................. 21
3.2.8 Set Password.............................................................................. 22
3.2.9 Quit Without Saving .................................................................... 23
v PCA-6742 User Manual
Appendix A Pin Assignments............................... 25
A.1 Front Panel Connectors (JFP1) .............................................................. 26
Table A.1: Front Panel Connectors (JFP1)................................ 26
A.2 Front Panel Connectors (JFP2) .............................................................. 26
Table A.2: Front Panel Connectors (JFP2)................................ 26
A.3 USB Ports (USB12 & USB34)................................................................. 27
Table A.3: USB Ports (USB12 & USB34).................................. 27
A.4 Serial Ports (COM2)................................................................................ 27
Table A.4: Serial Ports (COM2)................................................. 27
A.5 Serial Ports (COM34).............................................................................. 28
Table A.5: Serial Ports (COM34)............................................... 28
A.6 PS/2 Keyboard / Mouse connector (KBMS2).......................................... 28
Table A.6: PS/2 Keyboard / Mouse connector (KBMS2)........... 28
A.7 Front Panel LAN Indicate connector (LANLED1).................................... 29
Table A.7: Front Panel LAN Indicate connector (LANLED1) ..... 29
A.8 System FAN connector (SYSFAN1) ....................................................... 29
Table A.8: System FAN connector (SYSFAN1)......................... 29
A.9 GPIO Header (GPIO1) ............................................................................ 30
Table A.9: GPIO Header (GPIO1) ............................................. 30
A.10 TTL TFT LCD connector (LCD1) ............................................................ 30
Table A.10:TTL TFT LCD connector (LCD1).............................. 30
A.11 LVDS TFT LCD connector (LVDS1) ....................................................... 31
Table A.11:LVDS TFT LCD connector (LVDS1)......................... 31
A.12 Inverter power connector (INV1)............................................................. 31
Table A.12:Inverter power connector (INV1) .............................. 31
Appendix B Programming the Watchdog Timer .33
B.1 Introduction ............................................................................................. 34
B.1.1 Watchdog timer overview ........................................................... 34
Table B.1: Watchdog timer registers ......................................... 36
B.1.2 Example Program ....................................................................... 36
Appendix C System Assignments........................ 41
C.1 System I/O ports ..................................................................................... 42
Table C.1: System I/O ports....................................................... 42
C.2 DMA Channel assignments .................................................................... 42
Table C.2: DMA Channel assignments...................................... 42
C.3 Interrupt assignments ............................................................................. 43
Table C.3: Interrupt assignments............................................... 43
C.4 1st MB Memory map............................................................................... 43
Table C.4: 1st MB Memory map ................................................ 43
Appendix D Installing PC/104 Modules................ 45
D.1 Introduction ............................................................................................. 46
Figure D.1 PC/104 module mounting diagram ........................... 46
Figure D.2 PC/104 module dimensions (mm) (± 0.1)................. 47
Appendix E Mechanical Drawing ......................... 49
PCA-6742 User Manual vi
Chapter 1
1 General Information
This chapter gives background
information on the PCA-6742 HalfSize CPU Card.
1.1 Introduction
The PCA-6742 is the ultimate cost-effective solution for limited space applications. It
offers all the functions of an AT-compatible industrial computer on a single board. The
new CPU module supports Advantech EVA-X4300 SOC (system on chip) which supports ISA interfaces.
On-board features include a 10/100 Ethernet interface, Compact Flash socket (Type
I/II) shared with secondary IDE, Enhanced IDE interface, one parallel port, four serial
ports (1*RS232 on rear I/O, 2*RS232, 1*RS232/422/485), and a PS/2 keyboard/
mouse interface. An SVGA/LCD display controller (LCD and CRT displays) allows
LCD screen resolutions up to 1024 x 768 @ 18/24 bit LVDS/TTL (Optional) and CRT
resolutions up to 1024 x 768 @ 24bit true color.
The PCA-6742 complies with the "Green Function" standard and supports three
types of power saving features: Normal, Doze and
Sleep modes.
If you need any additional functions, the PCA-6742 has a PC/104 connector for
future upgrades.
1.2 Specifications
1.2.1 Standard System On Module functions
! CPU: Advantech SOC EVA-X4300 300MHz
! BIOS: Advantech SOC EVA-X4300 300MHz integrated BIOS
! Chipset: Advantech SOC EVA-X4300
! System memory: Onboard 64 / 128 (Optional) MB DDR2 Memory
! Enhanced IDE interface: 1 EIDE channel for two devices. BIOS auto-detect up
to UDMA -100
! Watchdog timer: 255 level timer interval, setup by software or
Jumper less selection generates system reset or IRQ11.
! USB interface: Support 4 ports USB 2.0 (USB1.1 under DOS)
! Expansion Interface: Supports ISA interface
1.2.2 VGA/flat panel Interface
! Chipset: VGA mode: SM712 graphic chip
! LCD mode: SMI SM712 2D graphic chip
! Memory Size: 4MB display memory
! Display mode: VGA mode supports 1024 x 768 @ 24bit true color
LCD mod supports 1024 x 768 @ 18/24 bit TTL / LVDS (Optional) TFT panel.
1.2.3 Audio function
! Audio interface: N/A
1.3 Mechanical and environmental
Dimensions: 185 mm (L) x 122 mm (W) (7.3" x 4.8")
Power supply voltage: Typical: +5V @ 1.6 A
Power requirement: Max: +5V @ 2 A
Operating temperature: 0 ~ 60°C (32 ~ 140° F)
Operating humidity: 0% ~ 90% relative humidity, non-condensing
Weight: 0.185 Kg (0.4 lbs)
PCA-6742 User Manual 2
Chapter 2
2 Connecting
Peripherals
This chapter tells how to connect
peripherals, switches and indicators to the PCA-6742 board. You
can access most of the connectors from the top of the board
while it is installed in the chassis.
If you have a number of cards
installed, or your chassis is very
tight, you may need to partially
remove the card to make all the
connections.
2.1 Jumper and Connector locations
JFP1
IDE1
JFP2
LPT1
FDD1
USB34
SP1
SYSFAN1
PWR1
USB12
JTAG1
BT1
LVDS1
CMOS1
INV1
VGASW2
LCD1
VGASW1
COM34
JWDT1
JOBS1
LANLED1
COM2
JSETCOM2
KBMS2
JCASE1
JIR1
Figure 2.1 Jumper and Connector Locations (component side)
GPIO1
VGA1
LAN1
COMD1
KBMS1
Figure 2.2 Jumper and Connector Locations (solder side)
PCA-6742 User Manual 4
2.2 Jumpers and Connectors
Connectors on the board link it to external devices such as hard drives, a keyboard or
expansion bus connectors. The board also has a number of jumpers that allow you to
configure your system to suit your application. The table below lists the function of
each jumper:
Table 2.1: Jumpers
Label Function
CMOS1 CMOS Clear
JSETCOM2 COM2 function selection
JWDT1 Watchdog timer output selection
JOBS1 HW Monitor Alarm
VGASW1 & VGASW2 LCD setting switch
The following table lists the connectors on the PCA-6742.
Table 2.2: Connectors
Label Function
JFP1(1-2) HDD LED
JFP1(3-4) Power LED
JFP1(5-6) N/C
JFP1(7-8) Reset switch
JFP1(9-10) N/C
JFP2(1-2) Fail LED
JFP2(3-4) Buzzer Enable
JIR1 IR connector
IDE1 IDE connector (Primary channel)
CF1 CF connector (Secondary channel)
LPT1 Parallel port
USB12 USB port 1,2
USB34 USB port 3,4
COMD1 Serial Port: COM1
COM2 Serial Port: COM2 (RS232/422/485)
COM34 Serial Port COM3/COM4
KBMS1 PS/2 keyboard and mouse connector
KBMS2 External keyboard and mouse connector
VGA1 VGA connector
LAN1 10/100 Ethernet connector
LANLED1 Front Panel LAN Indicator connector
JCASE1 Case Open
SYSFAN1 FAN connector (3-pin)
PWR1 AT power connector
GPIO1 GPIO pin header
BT1 RTC battery connector
LCD1 LCD connector
LVDS1 LVDS connector
INV1 Inverter connector
JTAG1 JTAG connector
PC104 PC-104 connector
Chapter 2 Connecting Peripherals
5 PCA-6742 User Manual
2.3 Setting jumpers
You may configure your card to match the needs of your application by setting jumpers. A jumper is the simplest kind of electrical switch. It consists of two metal pins and
a small metal clip (often protected by a plastic cover) that slides over the pins to connect them. To "close" a jumper, you connect the pins with the clip. To "open” a jumper
you remove the clip. Sometimes a jumper will have three pins, labeled 1, 2, and 3. In
this case you would connect either pins 1 and 2 or 2 and 3.
The jumper settings are schematically depicted in this manual as follows:
closed 2-3closedopen
A pair of needle-nose pliers may be helpful when working with jumpers.
If you have any doubts about the best hardware configuration for your application,
contact your local distributor or sales representative before you make any changes.
Generally, you simply need a standard cable to make most connections
2.3.1 Setting details
CMOS1 CMOSW Clear
Setting Function
1-2 Clear CMOS
2-3 Normal operation
Clear
CMOS
12 12
closed 2-3closedopen
Normal
operation
1
2
3
PCA-6742 User Manual 6
1
2
3
JSETCOM2 COM2 function selection
RS232 RS422 RS485
Chapter 2 Connecting Peripherals
JWDT1 Watchdog timer output selection
Setting Function
1-2 IRQ11
2-3 System reset
IRQ 11 Reset
1
2
3
1
2
3
JOBS1 HW Monitor Alarm
Setting Function
1-2 Closed Enable OBS alarm
1-2 Open Disable OBS alarm
OBS alarm
OBS alarm
enabled disabled
1
2
1
2
7 PCA-6742 User Manual
VGASW1
1
Setting Function
1 2 3 4 (switch)
000- 9-bit TFT
2
3
4
9-bit TFT
O
N
B
C
12-bit TFT
1 0 0 - 12-bit TFT
0 1 0 - 18-bit TFT
1 1 0 - 24-bit TFT
- - - 0 16-bit DSTN
- - - 1 24-bit DSTN
1
O
N
2
3
B
C
4
16-bit DSTN
24-bit DSTN
Key: 0 means ON; 1 means OFF; - means doesn’t matter.
VGA SW1
1
O
N
2
3
B
C
4
1
O
N
2
3
B
C
4
1
2
3
4
18-bit TFT
O
N
B
C
1
2
3
4
24-bit TFT
O
N
B
C
VGASW2
Setting Function
1 2 3 4 (switch)
0-- - TFT
1
O
N
2
3
B
C
4
TFT
VGA SW2
1
O
N
2
3
B
C
4
DSTN
1
2
3
4
FPCLK-norm
O
N
B
C
1
2
3
4
FPCLK-invrt
O
N
B
C
1-- - DSTN
- 0 - - FPCLK normal
- 1 - - FPCLK inverted
- - 0 0 640*480
- - 1 0 800*600
1
2
3
4
640x480
1
O
N
2
3
B
C
4
800x600
O
N
B
C
1
O
N
2
3
B
C
4
1024x768
1
O
N
2
3
B
C
4
1280x1024
- - 0 1 1024*768
- - 1 1 1280*1024
Key: 0 means ON; 1 means OFF; - means doesn’t matter.
The following sections tell how to make each connection. In most cases, you will simply need to connect a standard cable. All of the connector pin assignments are
shown in Appendix A.
Warning! Always completely disconnect the power cord from your chassis when-
ever you are working on it. Do not make connections while the power is
on. Sensitive electronic components can be damaged by a sudden rush
of power. Only experienced electronics personnel should open the PC
chassis.
Caution! Always ground yourself to remove any static charge before touching the
CPU card. Modern electronic devices are very sensitive to static electric
charges. Use a grounding wrist strap at all times. Place all electronic
components on a static-dissipative surface or in a static-shielded bag
when they are not in the chassis.
2.4 Front Panel Connectors (JFP1 & JFP2)
There are several external switches to monitor and control the PCA-6742.
PCA-6742 User Manual 8
2.5 IR Connector (JIR1)
This connector supports the optional wireless infrared transmitting and receiving
module. This module mounts on the system case. You must configure the setting
through BIOS setup.
2.6 IDE Connector (IDE1)
The PCA-6742 provides 1 IDE channels which you can attach up to two Enhanced
Integrated Device Electronics hard disk drives or CDROM to the board’s internal controller. Its IDE controller uses a PCI interface. This advanced IDE controller supports
faster data transfer up to UDMA 100.
Wire number 1 on the cable is red or blue, and the other wires are gray. Connect one
end to connector CN1 on the CPU card. Make sure that the red (or blue) wire corresponds to pin 1 on the connector. See Figure 2-1, where pin 1 is indicated with a triangle and a solid square.
IDE hard drives can connect in either position on the cable. If you install two drives,
you will need to set one as the master and one as the slave. You do this by setting
the jumpers on the drives. If you use just one drive, you should set it as the master.
See the documentation that came with your drive for more information.
Connect the first hard drive to the other end of the cable. Wire 1 on the cable should
also connect to pin 1 on the hard drive connector, which should be labeled on the
drive circuit board. Check the documentation that came with the drive for more information. If you are using a second drive, connect it to the remaining connector on the
same cable.
Chapter 2 Connecting Peripherals
2.7 Compact Flash card Socket (CF1)
The board provides a CompactFlash card type I/II socket. The CompactFlash card
shares a secondary IDE channel.
2.8 Parallel Port Connector (LPT1)
The parallel port is designated as LPT1, and is normally used to connect the CPU
card to a printer. The PCA-6742 includes an onboard parallel port, accessed through
a 26-pin flat-cable connector. The card comes with an adapter cable which lets you
use a traditional DB-25 connector. The cable has a 26-pin connector on one end and
a DB-25 connector on the other, mounted on a retaining bracket. The bracket installs
at the end of an empty slot in your chassis, giving you access to the connector.
To install the bracket, find an empty slot in your chassis. Unscrew the plate that covers the end of the slot. Screw in the bracket in place of the plate. Next, attach the flatcable connector to LPT1 on the CPU card. Wire 1 of the cable is red or blue, and the
other wires are gray. Make sure that wire 1 corresponds to pin 1 of LPT1. Pin 1 is on
the right side of LPT1.
2.9 USB Ports (USB12 & USB34)
The PCA-6742 provides up to four ports of USB (Universal Serial Bus) interface,
which gives complete Plug & Play and hot swapping for up to 127 external devices.
9 PCA-6742 User Manual
The USB interface complies with USB Specification Rev. 2.0 and Rev. 1.1 under DOS
support transmission rate up to 480 Mbps and is fuse-protected.
2.10 Serial Ports (COM1 & COM2 & COM34)
The PCA-6742 offers four serial ports, COMD1 as COM1 (RS-232 on real I/O) and
COM2 as COM2 (RS-232/RS-422/RS-485 on one 2.54mm pitch wafer box) and
COM34 as COM3, COM4 (2*RS-232 on one 2.0mm pitch wafer box). These ports
can connect to serial devices, such as a mouse or a printer, or to a communications
network.
The IRQ and address ranges for both ports are fixed. However, if you want to disable
the port or change these parameters later, you can do this in the system BIOS setup.
Different devices implement the RS-232 standard in different ways. If you are having
problems with a serial device, be sure to check the pin assignments for the connector.
2.10.1 COM2 RS-232/RS-422/RS-485 setting
COM2 can be configured to operate in RS-232, RS-422, or RS-485 mode. Please
check the JSETCOM2 setting on page 7.
2.11 PS/2 Keyboard / Mouse connector (KBMS1 & 2)
One 6-pin mini-DIN connectors (KBMS1) on the card mounting bracket provide connection to a PS/2 keyboard and a PS/2 mouse, respectively. KBMS2 (5-pin 2.54mm
wafer box) can also be connected to an adapter cable (P/N: 1700060202, available
from Advantech) for connecting to both a PS/2 keyboard.
2.12 VGA connector (VGA1)
The PCA-6742 includes a VGA interface that can drive conventional CRT displays.
VGA1 standard 15-pin D-SUB connector commonly used for VGA. Pin assignments
for CRT connector VGA1 detailed in Appendix B.
2.13 Ethernet connector (LAN1)
The PCA-6742 is equipped with a high performance 32-bit PCI-bus Fast Ethernet
interface which is fully compliant with IEEE 802.3u 10/100Base-T specifications. It is
supported by all major network operating systems.
2.13.1 Network boot
The network boot feature is built into the BIOS. It can be enabled or disabled in the
chipset setup of the CMOS configuration. Refer to "BIOS Setting" in Chapter 3 for
more information.
2.14 Front Panel LAN Indicate connector (LANLED1)
This LED is active for LAN connect
PCA-6742 User Manual 10
2.15 System FAN connector (SYSFAN1)
If fan is used, this connector supports cooling fans of 500 mA (6 W) or less.
2.16 AT power connector (PWR1)
If you prefer not to acquire power through the PCA-6742 backplane via the gold Hconnectors, the big 4P power connector (PWR1) also provides power input connectors for +5 V, and +12 V.
2.17 GPIO Header (GPIO1)
Provides 14-Pins pin header for Digital I/O usage. Refer to Appendix B for detailed
information on the pin assignments and programming guide in Appendix C.
The board supports 8-bit GPIO through GPIO connector. The 8 digital in- and outputs can be programmed to read or control devices, with input or out- put defined.
This GPIO is CMOS level (0 ~ 3.3 V).
2.18 Flat Panel display connector (LCD1 & LVDS1)
PCA-6742 is capable of driving flat panel displays.
Chapter 2 Connecting Peripherals
2.18.1 TTL TFT LCD connector (LCD1)
For PCM-6742, LCD1 consists of a 40-pin connector which can support 1024x768 @
18/24-bit TTL TFT LCD panel.
2.18.2 LVDS TFT LCD connector (LVDS1) (Optional)
For PCM-6742, LVDS1 consists of a 20-pin connector which can support 1024x768
@ 18/24-bit LVDS TFT LCD panel for optional.
2.19 PC/104 connector (PC104)
The PCA-6742 is equipped with a 8/16 bit ISA signal PC/104 connector for future
expansion.
11 PCA-6742 User Manual
PCA-6742 User Manual 12
Chapter 3
3 BIOS Operation
This chapter describes how to set
BIOS configuration data.
3.1 BIOS Introduction
Advantech provide full-featured AwardBIOS 6.0 and delivers the superior performance, compatibility and functionality that manufactures of Industry PC and Embedded boards, it’s many options and extensions let you customize your products to a
wide range of designs and target markets.
The modular, adaptable AwardBIOS 6.0 supports the broadest range of third-party
peripherals and all popular chipsets, plus Intel, AMD, nVidia, VIA, and compatible
CPUs from 386 through Pentium and AMD Geode, K7 and K8 (including multiple processor platforms), and VIA Eden C3 and C7 CPU.
You can use Advantech’s utilities to select and install features to suit your designs for
customers need.
3.2 BIOS Setup
The PCA-6742 has build-in AwardBIOS with a CMOS SETUP utility which allows
user to configure required settings or to activate certain system features.
The CMOS SETUP saves the configuration in the CMOS RAM of the motherboard.
When the power is turned off, the battery on the board supplies the necessary power
to the CMOS RAM.
When the power is turned on, press the <Del> button during the BIOS POST (PowerOn Self Test) will take you to the CMOS SETUP screen.
CONTROL KEYS
< ↑ >< ↓ >< ← >< → >
<Enter> Select Item
<Esc> Main Menu - Quit and not save changes into CMOS
<Page Up/+> Increase the numeric value or make changes
<Page Down/-> Decrease the numeric value or make changes
<F1> General help, for Setup Sub Menu
<F2> Item Help
<F5> Load Previous Values
<F7> Load Optimized Default
<F10> Save all CMOS changes
Move to select item
Sub Menu - Exit current page and return to Main Menu
PCA-6742 User Manual 14
3.2.1 Main Menu
Press <Del> to enter AwardBIOS CMOS Setup Utility, the Main Menu will appear on
the screen. Use arrow keys to select among the items and press <Enter> to accept or
enter the sub-menu.
Chapter 3 BIOS Operation
! Standard CMOS Features
This setup page includes all the items in standard compatible BIOS.
! Advanced BIOS Features
This setup page includes all the items of Award BIOS enhanced features.
! Advanced Chipset Features
This setup page includes all the items of Chipset configuration features.
! Integrated Peripherals
This setup page includes all onboard peripheral devices.
! PnP/PCI Configurations
This item allows the user to change the Plug and Play and PCI resource setting, such
as IRQ for VGA and USB.
! PC Health Status
This item allows the user to monitor the system such as CPU, system temperature
and voltage.
! Load Optimized Defaults
This setup page includes Load system optimized value, and the system would be in
best performance configuration.
! Set Password
Establish, change or disable password.
! Save & Exit Setup
Save CMOS value settings to CMOS and exit BIOS setup.
! Exit Without Saving
Abandon all CMOS value changes and exit BIOS setup.
15 PCA-6742 User Manual
3.2.2 Standard CMOS Feature
! Date
The date format is <weekday>, <month>, <day>, <year>.
Weekday From Sun to Sat, determined and display by BIOS only
Month From Jan to Dec.
Day From 1 to 31
Year From 1999 through 2098
! Time
The times format in <hour> <minute> <second>, base on the 24-hour time
! IDE Channel 0 Master/Slave
IDE HDD Auto-Detection Press "Enter" for automatic device detection.
! IDE Channel 1 Master
IDE HDD Auto-Detection Press "Enter" for automatic device detection.
! Halt on
The item determines whether the computer will stop if an error is detected during
power up.
! Base Memory
The POST of the BIOS will determine the amount of base (or conventional) memory
installed in the system.
! Extended Memory
The POST of the BIOS will determine the amount of extended memory (above 1MB
in CPU’s memory address map) installed in the system.
! Total Memory
This item displays the total system memory size.
PCA-6742 User Manual 16
3.2.3 Advanced BIOS Feature
Chapter 3 BIOS Operation
! USB Flash Disk Type
Auto Auto detect USB device.
FDD Select "FDD" to make USB device as [A:] and choose “USB-ZIP” as
first Boot Device if necessary.
HDD Select "HDD" to make USB device as [C:] and choose “USB-HDD” as
first Boot Device if necessary.
! First / Second / Third / Other Boot Drive
Floppy Floppy gets this priority.
LS120 LS120 gets this priority.
Hard Disk Hard Disk gets this priority.
CDROM CDROM gets this priority.
ZIP ZIP gets this priority.
USB-FDD USB-FDD gets this priority.
USB-ZIP USB-ZIP gets this priority.
USB-CDROM USB-CDROM gets this priority.
LAN LAN gets this priority.
Disabled Disable this boot function.
! Blank Boot [Disabled]
This item enables/disables Blank Boot feature.
! Summary Screen Show [Disabled]
This item sets summary screen show or not.
17 PCA-6742 User Manual
3.2.4 Advanced Chipset Feature
Note! This “Advanced Chipset Features” page controls configuration of the
board’s chipset; this page is chipset dependent. Use it to control chipset
register settings and fine tune system performance. It is strongly recommended only technical users make changes to the default settings.
! SMI712 VGA Setting [Press Enter] (Show Only)
This item allows users to set VGA related features.
! EVA-X4300 IDE Legacy mode [Enabled]
This item enables EVA-X4300 IDE as legacy IDE controller or PCI IDE controller.
! Watch Dog Timer reset [Disabled]
This item allows user to set watch dog timer.
! Do CMOS Clear [Disabled]
This item allows user to clear CMOS.
! LAN Controller [Enabled]
This item is enabled or disabled that onboard of LAN controller.
! GPCS0 FUNCTION [Disable]
This item allows users to use the GPCS (General Purpose Chip Select) function to
detect ISA cards.
EVA-X4300 defines two general-purpose chip select output pins with programmable
address and range of memory and I/O access. It also can be programmed as memory activated or by I/O read / write command. If necessary, this can be used to
generate a de-asserted signal, and the system control logic samples can identify the addressed expansion board through this BIOS setting.
! GPCS COMMAND [MEMRW 16 Bits]
Select 8 Bits or 16 Bits I/O or Memory card.
! GPCS Start Address [Press Enter]
Setting ISA card decode start address.
! GPCS Mask Compare Bit [Press Enter]
Setting ISA card rang.
Ex: FFFFFFF0h mean range is 16bytes, if FFFFFF00h mean range is 256 bytes.
PCA-6742 User Manual 18
3.2.5 Integrated Peripherals
Chapter 3 BIOS Operation
Note! This “Integrated Peripherals” option controls the configuration of the
board’s chipset, includes IDE, ATA. This page is chipset dependent.
! On-Chip Primary/Secondary IDE
This item enables chipset IDE device 1 of controller.
! Master PIO [Auto]
This item allows user to adjust master IDE mode of type for modification purpose.
Bios default value suggest to “Auto”.
! Slave PIO [Auto]
This item allows user to adjust slave IDE mode of type for modification purpose. Bios
default value suggest to “Auto”.
! Master Ultra DMA [Enabled]
This item allows user to enable/disable primary master IDE ultra DMA mode. Bios
default value suggest to “Enabled”.
19 PCA-6742 User Manual
! Slave Ultra DMA [Enabled]
This item allows user to enable/disable primary slave IDE ultra DMA mode. Bios
default value suggest to “Enabled”.
! Master UDMA [Auto]
This item allows user to adjust primary master IDE mode of type for modification purpose. Bios default value suggest to “Auto”.
! Slave UDMA [Auto]
This item allows user to adjust primary slave IDE mode of type for modification purpose. Bios default value suggest to “Auto”.
! IDE HDD Block Mode [Enabled]
This item allows enabled or disabled that IDE block data transfer mode. It will speed
up HDD data transfer of efficiency. Bios default value suggest to “Enabled”.
! CKB input clock [8 MHz]
PS/2 keyboard communicates with the keyboard controller. The speed of the data
link depends on the clock signal generated by the keyboard controller.
! Onboard Serial Port 1 [3F8 / IRQ4]
This item allows user to change com 1 of address and IRQ.
! Onboard Serial Port 2 [2F8 / IRQ3]
This item allows user to change com 2 of address and IRQ.
! Onboard Serial Port 3 [3E8 / IRQ5]
This item allows user to change com 3 of address and IRQ.
! Onboard Serial Port 4 [2E8 / IRQ9]
This item allows user to change com 4 of address and IRQ.
! UART Mode select [Normal]
This item allows you to select UART mode.
! RxD, TxD Active [Hi, Lo]
This item allows you to determine the active of RxD, TxD.
! IR Transmission Delay [Enabled]
This item allows you to enable or disable IR transmission delay.
! UR2 Duplex Mode [Half]
This item allows you to select the IR half/full duplex function.
! Onboard Parallel Port [378 / IRQ7]
This field sets the address of the on-board parallel port connector. You can select
either Auto, 3BCH/IRQ7, 378H/IRQ7, 278H/IRQ5 or Disabled. If you install an I/O
card with a parallel port, make sure there is no conflict in the address assignments.
The CPU card can support up to three parallel ports, as long as there are no conflicts
for each port.
! Parallel Port Mode [SPP]
This field allows you to set the operation mode of the parallel port. The setting "SPP"
allows normal speed operation, but in one direction only. "EPP" allows bidirectional
parallel port operation at maximum speed. "ECP" allows the parallel port to operate in
bi-directional mode and at a speed faster than the maximum data transfer rate. “ECP
+ EPP” allows normal speed operation in a two-way mode
! EPP Mode Select [EPP1.7]
This field allows you to select EPP port type 1.7 or 1.9.
! ECP Mode Use DMA [3]
This selection is available only if you select “ECP” or “ECP + EPP” in the Parallel Port
Mode field. In ECP Mode Use DMA, you can select DMA channel 1, DMA channel 3,
or Disable. Leave this field on the default setting.
PCA-6742 User Manual 20
3.2.6 PnP/PCI Configurations
Chapter 3 BIOS Operation
! Resources Controlled by [Auto(ESCD)]
The commands here are “Auto” or “Manual”. Choosing “manual” requires you to
choose resources from each following sub-menu. "Auto" automatically configures the
entire boot and Plug and Play devices but you must be using Windows 95 or above.
3.2.7 Load Optimized Defaults
Note! Load Optimized Defaults loads the default system values directly from
ROM. If the stored record created by the Setup program should ever
become corrupted (and therefore unusable). These defaults will load
automatically when you turn the PCA-6742 on.
21 PCA-6742 User Manual
3.2.8 Set Password
Note! To enable this feature, you should first go to the Advanced BIOS Fea-
tures menu, choose the Security Option, and select either Setup or System, depending on which aspect you want password protected. Setup
requires a password only to enter Setup. System requires the password
either to enter Setup or to boot the system. A password may be at most
8 characters long.
To Establish Password
1. Choose the Set Password option from the CMOS Setup Utility main menu and
press <Enter>.
2. When you see "Enter Password", enter the desired password and press
<Enter>.
3. At the "Confirm Password" prompt, retype the desired password, and then press
<Enter>.
4. Select Save to CMOS and EXIT, type <Y>, then <Enter>.
To Change Password
1. Choose the Set Password option from the CMOS Setup Utility main menu and
press <Enter>.
2. When you see "Enter Password", enter the existing password and press
<Enter>.
3. You will see "Confirm Password". Type it again, and press <Enter>.
4. Select Set Password again, and at the "Enter Password" prompt, enter the new
password and press <Enter>.
5. At the "Confirm Password" prompt, retype the new password, and press
<Enter>.
6. Select Save to CMOS and EXIT, type <Y>, then <Enter>.
PCA-6742 User Manual 22
To Disable Password
1. Choose the Set Password option from the CMOS Setup Utility main menu and
press <Enter>.
2. When you see "Enter Password", enter the existing password and press
<Enter>.
3. You will see "Confirm Password". Type it again, and press <Enter>.
4. Select Set Password again, and at the "Enter Password" prompt, please don’t
enter anything; just press <Enter>.
5. At the "Confirm Password" prompt, again, don’t type in anything; just press
<Enter>.
6. Select Save to CMOS and EXIT, type <Y>, then <Enter>.
3.2.9 Quit Without Saving
Chapter 3 BIOS Operation
Note! Typing “Y” will quit the BIOS Setup Utility without saving to CMOS.
Typing “N” will return to BIOS Setup Utility.
23 PCA-6742 User Manual
PCA-6742 User Manual 24
Appendix A
A Pin Assignments
This appendix contains information of a detailed or specialized
nature.
A.1 Front Panel Connectors (JFP1)
64528
10
1
3
9
7
Table A.1: Front Panel Connectors (JFP1)
Pin Signal
1 HDD LED+
2 HDD LED-
3 Power LED+
4 Power LED-
5 N/C
6 N/C
7 Reset Switch
8 GND
9 5 VSB (Reserved)
10 Power Switch (Reserved)
A.2 Front Panel Connectors (JFP2)
12 43
Table A.2: Front Panel Connectors (JFP2)
Pin Signal
1 5 V
2 Fail LED
3 Buzzer_P1
4 Buzzer_P2
PCA-6742 User Manual 26
A.3 USB Ports (USB12 & USB34)
64528
Appendix A Pin Assignments
Table A.3: USB Ports (USB12 & USB34)
Pin Signal
1 VCC
2 VCC
3 USB Data1-
4 USB Data2-
5 USB Data1+
6 USB Data2+
7 GND
8 GND
9 GND
A.4 Serial Ports (COM2)
1
3
7
64528
9
1
3
9
7
Table A.4: Serial Ports (COM2)
Pin Signal
RS232 RS422 RS485
1 DCD TXD- Data-
2 DSR NC NC
3 RX TXD+ Data+
4 RTS NC NC
5 TX RXD+ NC
6 CTS NC NC
7 DTR RXD- NC
8 RI NC NC
9 GND GND GND
27 PCA-6742 User Manual
A.5 Serial Ports (COM34)
218
420
3
171
19
Table A.5: Serial Ports (COM34)
Pin Signal Pin Signal
1 DCD3 2 DSR3
3 RX3 4 RTS3
5 TX3 6 CTS3
7 DTR3 8 RI3
9 GND 10 GND
11 DCD4 12 DSR4
13 RX4 14 RTS4
15 TX4 16 CTS4
17 DTR4 18 RI4
19 GND 20 GND
A.6 PS/2 Keyboard / Mouse connector (KBMS2)
1
6
Table A.6: PS/2 Keyboard / Mouse connector (KBMS2)
Pin Signal
1 PS2 keyboard clock
2 PS2 keyboard data
3 PS2 mouse data
4 GND
5 VCC
6 PS2 mouse clock
PCA-6742 User Manual 28
A.7 Front Panel LAN Indicate connector (LANLED1)
6452
8
Appendix A Pin Assignments
9
3
71
Table A.7: Front Panel LAN Indicate connector (LANLED1)
Pin Signal
1 NC
2 LAN_/ACTIVITY#
3 NC
4 VCC3
5 NC
6 NC
A.8 System FAN connector (SYSFAN1)
1
2
3
Table A.8: System FAN connector (SYSFAN1)
Pin Signal
1 GND
2 +12 V
3 FAN_TACH
29 PCA-6742 User Manual
A.9 GPIO Header (GPIO1)
14
12
10
8
6
4
2
13
11
9
7
5
3
1
Table A.9: GPIO Header (GPIO1)
Pin Signal Pin Signal
1 GPIO1 2 GPIO5
3 VCC 4 GND
5 GPIO2 6 GPIO6
7 GND 8 GND
9 GPIO3 10 GPIO7
11 GND 12 GND
13 GPIO4 14 GPIO8
A.10 TTL TFT LCD connector (LCD1)
139
337
4
38
402
Table A.10: TTL TFT LCD connector (LCD1)
Pin Signal Pin Signal
1 VCC5 2 VCC5
3 GND 4 GND
5 VCC3 6 VCC3
7 Vcon 8 GND
9 LCD_DATA0 10 LCD_DATA1
11 LCD_DATA2 12 LCD_DATA3
13 LCD_DATA4 14 LCD_DATA5
15 LCD_DATA6 16 LCD_DATA7
17 LCD_DATA8 18 LCD_DATA9
19 LCD_DATA10 20 LCD_DATA11
21 LCD_DATA12 22 LCD_DATA13
23 LCD_DATA14 24 LCD_DATA15
25 LCD_DATA16 26 LCD_DATA17
27 LCD_DATA18 28 LCD_DATA19
29 LCD_DATA20 30 LCD_DATA21
31 LCD_DATA22 32 LCD_DATA23
33 GND 34 GND
PCA-6742 User Manual 30
Table A.10: TTL TFT LCD connector (LCD1)
35 LCD_SCLK 36 LCD_VSYNC
37 LCD_DE 38 LCD_HSYNC
39 NC 40 LCD_BACKON
A.11 LVDS TFT LCD connector (LVDS1)
117
319
Appendix A Pin Assignments
4
182
20
Table A.11: LVDS TFT LCD connector (LVDS1)
Pin Signal Pin Signal
1 VCC3 2 VCC3
3 GND 4 GND
5 LVDS_TX0- 6 LVDS_TX0+
7 GND 8 LVDS_TX1-
9 LVDS_TX1+ 10 GND
11 LVDS_TX2- 12 LVDS_TX2+
13 GND 14 LVDS_TX3-
15 LVDS_TX3+ 16 GND
17 LVDS_CLK- 18 LVDS_CLK+
19 GND 20 GND
A.12 Inverter power connector (INV1)
1
2
3
4
5
Table A.12: Inverter power connector (INV1)
Pin Signal
1 +12 V
2 GND
3 BACK_ON#
4 Brightness
5 VCC
31 PCA-6742 User Manual
PCA-6742 User Manual 32
Appendix B
B Programming the
Watchdog Timer
This appendix contains information of how to program the Watchdog Timer.
B.1 Introduction
The PCA-6742’s watchdog timer can be used to monitor system software operation
and take corrective action if the software fails to function within the programmed
period. This section describes the operation of the watchdog timer and how to program it.
B.1.1 Watchdog timer overview
The watchdog timer is built in to the W83627HG super I/O controller. It provides the
following user programmable functions:
! Can be enabled and disabled by user’s program
! Timer can be set from 1 to 255 seconds or 1 to 255 minutes
! Generates an interrupt or reset signal if the software fails to reset the timer
before time-out
B.1.2 Programming the Watchdog Timer
The I/O port address of the watchdog timer is 2E (hex) and 2F (hex). 2E (hex) is the
address port. 2F (hex) is the data port. You must first write an address value into
address port 2E (hex), then write/read data to/from the assigned register through
data port 2F (hex).
PCA-6742 User Manual 34
Unlock W83627HG
Select register of
watchdog timer
Enable the function of
the watchdog timer
Appendix B Programming the Watchdog Timer
Use the function of
the watchdog time
Lock W83627HG
r
35 PCA-6742 User Manual
Table B.1: Watchdog timer registers
Address of
register (2E)
87 (hex) -----
07 (hex) write Write 08 (hex) to select register of watchdog timer.
30 (hex) write
F5 (hex) write
F6 (hex) write
F7 (hex) read/write
AA (hex) -----
Attribute
Read/Write
Value (2F)& description
Write this address to I/O address port 2E (hex) twice to
unlock the W83627HG
Write 01 (hex) to enable the function of the watchdog timer.
Disabled is set as default.
Set seconds or minutes as units for the timer. Write 0 to bit 3:
set second as counting unit. [default]. Write 1 to bit 3: set
minutes as counting unit
0: stop timer [default]
01~FF (hex): The amount of the count, in seconds or minutes, depends on the value set in register F5 (hex). This
number decides how long the watchdog timer waits for
strobe before generating an interrupt or reset signal. Writing
a new value to this register can reset the timer to count with
the new value.
Bit 6: Write 1 to enable keyboard to reset the timer, 0 to disable.[default]
Bit 5: Write 1 to generate a timeout signal immediately and
automatically return to 0. [default=0]
Bit 4: Read status of watchdog timer, 1 means timer is “timeout”.
Write this address to I/O port 2E (hex) to lock the watchdog
timer 2.
B.1.2 Example Program
1. Enable watchdog timer and set 10 sec. as timeout interval
;-----------------------------------------------------------
Mov dx,2eh ; Unlock W83627HG
Mov al,87h
Out dx,al
Out dx,al
;----------------------------------------------------------Mov al,07h ; Select registers of watchdog timer
Out dx,al
Inc dx
Mov al,08h
Out dx,al
;----------------------------------------------------------Dec dx ; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;-----------------------------------------------------------
PCA-6742 User Manual 36
Dec dx ; Set second as counting unit
Mov al,0f5h
Out dx,al
Inc dx
In al,dx
And al,not 08h
Out dx,al
;-----------------------------------------------------------
Dec dx ; Set timeout interval as 10 seconds and start counting
Mov al,0f6h
Out dx,al
Inc dx
Mov al,10
Out dx,al
;-----------------------------------------------------------
Dec dx ; lock W83627HG
Mov al,0aah
Out dx,al
Appendix B Programming the Watchdog Timer
2. Enable watchdog timer and set 5 minutes as timeout interval
;----------------------------------------------------------Mov dx,2eh ; unlock W83627HG
Mov al,87h
Out dx,al
Out dx,al
;----------------------------------------------------------Mov al,07h ; Select registers of watchdog timer
Out dx,al
Inc dx
Mov al,08h
Out dx,al
;----------------------------------------------------------Dec dx ; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;-----------------------------------------------------------
Dec dx ; Set minute as counting unit
Mov al,0f5h
Out dx,al
Inc dx
In al,dx
Or al,08h
Out dx,al
37 PCA-6742 User Manual
;----------------------------------------------------------Dec dx ; Set timeout interval as 5 minutes and start counting
Mov al,0f6h
Out dx,al
Inc dx
Mov al,5
Out dx,al
;-----------------------------------------------------------
Dec dx ; lock W83627HG
Mov al,0aah
Out dx,al
3. Enable watchdog timer to be reset by mouse
;----------------------------------------------------------Mov dx,2eh ; unlock W83627HG
Mov al,87h
Out dx,al
Out dx,al
;-----------------------------------------------------------
Mov al,07h ; Select registers of watchdog timer
Out dx,al
Inc dx
Mov al,08h
Out dx,al
;-----------------------------------------------------------
Dec dx ; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;-----------------------------------------------------------
Dec dx ; Enable watchdog timer to be reset by mouse
Mov al,0f7h
Out dx,al
Inc dx
In al,dx
Or al,80h
Out dx,al
;-----------------------------------------------------------
Dec dx ; lock W83627HG
Mov al,0aah
Out dx,al
4. Enable watchdog timer to be reset by keyboard
;----------------------------------------------------------Mov dx,2eh ; unlock W83627HG
PCA-6742 User Manual 38
Mov al,87h
Out dx,al
Out dx,al
;----------------------------------------------------------Mov al,07h ; Select registers of watchdog timer
Out dx,al
Inc dx
Mov al,08h
Out dx,al
;----------------------------------------------------------Dec dx ; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;-----------------------------------------------------------
Dec dx ; Enable watchdog timer to be strobed reset by keyboard
Mov al,0f7h
Out dx,al
Inc dx
In al,dx
Or al,40h
Out dx,al
;-----------------------------------------------------------
Dec dx ; lock W83627HG
Mov al,0aah
Out dx,al
Appendix B Programming the Watchdog Timer
5. Generate a time-out signal without timer counting
;-----------------------------------------------------------
Mov dx,2eh ; unlock W83627HG
Mov al,87h
Out dx,al
Out dx,al
;----------------------------------------------------------Mov al,07h ; Select registers of watchdog timer
Out dx,al
Inc dx
Mov al,08h
Out dx,al
;----------------------------------------------------------Dec dx ; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
39 PCA-6742 User Manual
Mov al,01h
Out dx,al
;-----------------------------------------------------------
Dec dx ; Generate a time-out signal
Mov al,0f7h
Out dx,al ;Write 1 to bit 5 of F7 register
Inc dx
In al,dx
Or al,20h
Out dx,al
;-----------------------------------------------------------
Dec dx ; lock W83627HG
Mov al,0aah
Out dx,al
PCA-6742 User Manual 40
Appendix C
C System Assignments
This appendix contains information of all System assignments.
C.1 System I/O ports
Table C.1: System I/O ports
Addr. Range (Hex) Device
000-00F DMA controller
020-021 Interrupt controller 1, master
022-023 Chipset address
040-043 Timer / Counter Register
048-04B PWM Control Register
060/064 Keyboard / Mouse Control Resisters
061 NMI status and Control Registers
068-06D Watchdog Timer 1 Control Register
065/067 Watchdog Timer Reload Register
070-07F mask Real-time clock, non-maskable interrupt (NMI)
080-08F DMA page Register
092 System Control Register
0A0-0A1 Interrupt controller 2
0C0-0DF DMA controller
0F0 Clear math co-processor
0F1 Reset math co-processor
0F8-0FF Math co-processor
170- 177 2nd fixed disk for CompactFlash
1F0-1F7 1st fixed disk
2E8-2EF Serial port 4
2F8-2FF Serial port 2
378-37F Parallel printer port 1 (LPT2)
3B0-3BF Monochrome display and printer adapter (LPT1)
3C0-3CF Reserved
3D0-3DF Color / Graphics monitor adapter
3E8-3EF Serial port 3
3F0-3F7 Diskette controller
3F8-3FF Serial port 1
480-48F DMA High page Registers
4D0-4D1 Interrupt Edge / Level control Registers
C.2 DMA Channel assignments
Table C.2: DMA Channel assignments
Channel Function
0 Available
1 Available
2 Reserved
3 Parallel
4 Cascade for DMA controller 1
5 Available
6 Available
7 Available
PCA-6742 User Manual 42
C.3 Interrupt assignments
Table C.3: Interrupt assignments
Interrupt# Interrupt source
NMI Parity error detected
IRQ 0 Interval timer
IRQ 1 Keyboard
IRQ 2 Interrupt from controller 2 (cascade)
IRQ 8 Real-time clock
IRQ 9 Serial communication port 4
IRQ 10 Available
IRQ 11 Available
IRQ 12 PS/2 mouse
IRQ 13 INT from co-processor
IRQ 14 Preliminary IDE
IRQ 15 Secondary IDE for CompactFlash
IRQ 3 Serial communication port 2
IRQ 4 Serial communication port 1
IRQ 5 Serial communication port 3
IRQ 6 Reserve
IRQ 7 Parallel port 1 (print port)
Appendix C System Assignments
C.4 1st MB Memory map
Table C.4: 1st MB Memory map
Addr. range (Hex) Device
E000 - EFFF System ROM
C800 - DFFF Available
C000h - C7FFh VGA BIOS
B800h - BFFFh CGA/EGA/VGA text
B000h - B7FFh Reserved for graphic mode usage
A000h - AFFFh EGA/VGA graphics
0000h - 9FFFh Base memory
43 PCA-6742 User Manual
PCA-6742 User Manual 44
Appendix D
D Installing PC/104
Modules
This appendix contains information of installing PC/104 modules.
D.1 Introduction
The PCA-6742 PC/104 connectors give you the flexibility to attach PC/104 modules.
Installing these modules on the PCA-6742 is quick and simple. The following steps
show how to mount the PC/104 modules:
1. Remove the PCA-6742 from your system, paying particular attention to the
safety instructions already mentioned above.
2. Make any jumper or link changes required to the CPU card now. Once the PC/
104 module is mounted you may have difficulty in accessing these.
3. Normal PC/104 modules have male connectors and mount directly onto the
main card. (Refer to the diagram on the following page.)
4. Mount the PC/104 module onto the CPU card by pressing the module firmly but
carefully onto the mounting connectors.
5. Secure the PC/104 module onto the CPU card using the four mounting spacers
and screws.
Female
PCA-6742
PC/104
Mounting Support
Male
PC/104 Module
Figure D.1 PC/104 module mounting diagram
PCA-6742 User Manual 46
Appendix D Installing PC
/
8.9
82.5
95.9
90.8
5.1
90.8
5.1
0
5.1
0
Figure D.2 PC/104 module dimensions (mm) (± 0.1)
Pin Number Signal Row A Signal Row B Row C Row D
85.1
90.2
104 Modules
0 - - 0 V 0 V
1 IOCHCHK* 0 V SBHE* MEMCS16*
2 SD7 RESETDRV LA23 IOCS16*
3 SD6 +5 V LA22 IRQ10
4 SD5 IRQ9 LA21 IRQ11
5 SD4 -5 V LA20 IRQ12
6 SD3 DRQ2 LA19 IRQ15
7 SD2 -12 V LA18 IRQ14
8 SD1 ENDXFR* LA17 DACK0*
9 SD0 +12 V MEMR* DRQ0
10 IOCHRDY N/C MEMW* DACK5*
11 AEN SMEMW* SD8 DRQ5
12 SA19 SMEMR* SD9 DACK6*
13 SA18 IOW* SD10 DRQ6
14 SA17 IOR* SD11 DACK7*
15 SA16 DACK3* SD12 DRQ7
16 SA15 DRQ3 SD13 +5 V
17 SA14 DACK1* SD14 MASTER*
18 SA13 DRQ1 SD15 0 V
19 SA12 REFRESH* KEY 0 V
20 SA11 SYSCLK - -
21 SA10 IRQ7 - -
22 SA9 IRQ6 - -
23 SA8 IRQ5 - -
24 SA7 IRQ4 - -
25 SA6 IRQ3 - -
26 SA5 DACK2* - -
47 PCA-6742 User Manual
27 SA4 TC - -
28 SA3 BALE - -
29 SA2 +5 V - -
30 SA1 OSC - -
31 SA0 0 V - -
32 0 V 0 V - -
* active low
PCA-6742 User Manual 48
Appendix E
E Mechanical Drawing
185.00
106.55
100.65
65.41
26.99
4.01
13.84
122.00
79.12
24.72
19.51
SYSFAN1
181.99
JFP1
JFP2
PWR1
USB34
SP1
172.34
JTAG1
USB12
IDE1
LVDS1
INV1
CMOS1
BT1
LPT1
LCD1
VGASW1VGASW 2
COM34
JSETCOM2
JWDT1
JOBS1
FDD1
LANLED1
KBMS2
JCASE1
COM2
LAN1
JIR1
GPIO1
VGA1
KBMS1
102.32
COMD1
16.59
9.51
0.00
8.68
104.46
103.19
82.87
24.45
0.00
16.51
CF1
32.41
151.32
PCA-6742 User Manual 50
0.00
0.00
Appendix E Mechanical Drawing
51 PCA-6742 User Manual
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Please verify specifications before quoting. This guide is intended for reference
purposes only.
All product specifications are subject to change without notice.
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All brand and product names are trademarks or registered trademarks of their
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© Advantech Co., Ltd. 2008
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