Advantech PCA-6742 Series User manual

User Manual
PCA-6742
Half-Size CPU Card

PCA-6742 User Manual ii
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. How-
ever, Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringe-
ments 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

iii PCA-6742 User Manual
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 pur-
chase.
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 defec-
tive, it will be repaired or replaced at no charge during the warranty period. For out-
of-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. Opera-
tion 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 man-
ufacturer. Discard used batteries according to the manufacturer's
instructions.

PCA-6742 User Manual iv
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 repre-
sentative immediately.

v PCA-6742 User Manual
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

PCA-6742 User Manual vi
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

Chapter 1
1General Information
This chapter gives background
information on the PCA-6742 Half-
Size CPU Card.

PCA-6742 User Manual 2
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 sup-
ports 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)

Chapter 2
2Connecting
Peripherals
This chapter tells how to connect
peripherals, switches and indica-
tors to the PCA-6742 board. You
can access most of the connec-
tors 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.

PCA-6742 User Manual 4
2.1 Jumper and Connector locations
Figure 2.1 Jumper and Connector Locations (component side)
Figure 2.2 Jumper and Connector Locations (solder side)
USB34 USB12
JFP1
JFP2
SP1
LVDS1
IDE1
INV1
LCD1
LPT1
JTAG1
BT1
CMOS1
SYSFAN1
PWR1
VGASW1
VGASW2
JSETCOM2
COM34
JCASE1
FDD1
GPIO1
VGA1
JWDT1
JOBS1 JIR1
LANLED1
LAN1
COM2
COMD1
KBMS1
KBMS2

5 PCA-6742 User Manual
Chapter 2 Connecting Peripherals
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:
The following table lists the connectors on the PCA-6742.
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
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

PCA-6742 User Manual 6
2.3 Setting jumpers
You may configure your card to match the needs of your application by setting jump-
ers. 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 con-
nect 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:
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
closed 2-3closedopen
12 12
closed 2-3closedopen
CMOS1 CMOSW Clear
Setting Function
1-2 Clear CMOS
2-3 Normal operation
1
2
3
1
2
3
Clear
CMOS
Normal
operation

7 PCA-6742 User Manual
Chapter 2 Connecting Peripherals
JSETCOM2 COM2 function selection
JWDT1 Watchdog timer output selection
Setting Function
1-2 IRQ11
2-3 System reset
JOBS1 HW Monitor Alarm
Setting Function
1-2 Closed Enable OBS alarm
1-2 Open Disable OBS alarm
RS232 RS422 RS485
1
2
3
1
2
3
IRQ 11 Reset
OBS alarm
enabled disabled
OBS alarm
1
2
1
2

PCA-6742 User Manual 8
Key: 0 means ON; 1 means OFF; - means doesn’t matter.
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 sim-
ply need to connect a standard cable. All of the connector pin assignments are
shown in Appendix A.
2.4 Front Panel Connectors (JFP1 & JFP2)
There are several external switches to monitor and control the PCA-6742.
VGASW1
Setting Function
1 2 3 4 (switch)
000- 9-bitTFT
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
VGASW2
Setting Function
1 2 3 4 (switch)
0--- TFT
1--- DSTN
- 0 - - FPCLK normal
- 1 - - FPCLK inverted
- - 0 0 640*480
- - 1 0 800*600
- - 0 1 1024*768
- - 1 1 1280*1024
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.
1
2
3
4
O
N
B
C
9-bit TFT
1
2
3
4
O
N
B
C
12-bit TFT
1
2
3
4
O
N
B
C
18-bit TFT
1
2
3
4
O
N
B
C
24-bit TFT
1
2
3
4
O
N
B
C
16-bit DSTN
1
2
3
4
O
N
B
C
24-bit DSTN
VGA SW1
1
2
3
4
O
N
B
C
TFT
1
2
3
4
O
N
B
C
DSTN
1
2
3
4
O
N
B
C
FPCLK-norm
1
2
3
4
O
N
B
C
FPCLK-invrt
1
2
3
4
O
N
B
C
640x480
1
2
3
4
O
N
B
C
800x600
VGA SW2
1
2
3
4
O
N
B
C
1024x768
1
2
3
4
O
N
B
C
1280x1024

9 PCA-6742 User Manual
Chapter 2 Connecting Peripherals
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 con-
troller. 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 corre-
sponds to pin 1 on the connector. See Figure 2-1, where pin 1 is indicated with a tri-
angle 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 infor-
mation. If you are using a second drive, connect it to the remaining connector on the
same cable.
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 cov-
ers the end of the slot. Screw in the bracket in place of the plate. Next, attach the flat-
cable 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.

PCA-6742 User Manual 10
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 connec-
tor.
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 con-
nection 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

11 PCA-6742 User Manual
Chapter 2 Connecting Peripherals
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 H-
connectors, the big 4P power connector (PWR1) also provides power input connec-
tors 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 out-
puts 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.
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.

PCA-6742 User Manual 12

Chapter 3
3BIOS Operation
This chapter describes how to set
BIOS configuration data.

PCA-6742 User Manual 14
3.1 BIOS Introduction
Advantech provide full-featured AwardBIOS 6.0 and delivers the superior perfor-
mance, compatibility and functionality that manufactures of Industry PC and Embed-
ded 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 pro-
cessor 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 (Power-
On Self Test) will take you to the CMOS SETUP screen.
CONTROL KEYS
<↑>< ↓>< ←>< →>Move to select item
<Enter> Select Item
<Esc> Main Menu - Quit and not save changes into CMOS
Sub Menu - Exit current page and return to Main Menu
<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