Advantech PCA-6143P User manual
Chapter 1 Hardware Configuration 1
1
Hardware
Configuration
This chapter gives background informa-
tion on the PCA-6143P. It then shows you
how to configure the card to match your
application and prepare it for installation
into your PC.
Sections include:
• Card specifications
• Locating components
• Safety precautions
• Configuration – Jumper settings
Experienced users can skip to the
Quick Start section on page 39.
CHAPTER
2PCA-6143P User's Manual
Introduction
The half-size PCA-6143P comes equipped with either an 80486SX-
25, 80486SX-33, 80486DX-33, 80486DX2-50 or 80486DX2-66
CPU. Also included on-board are one serial RS-232 port, one serial
RS-232/422/485 port, an enhanced bi-directional parallel port, an IDE
hard disk drive interface, a floppy disk controller and a watchdog
timer. The watchdog timer ensures that the CPU will be reset if it
stops due to a program or EMI problem, allowing the PCA-6143P to
be used in stand-alone systems or unattended environments. The PCA-
6143P’s industrial-grade construction ensures continuous, reliable
operation in harsh industrial environments at temperatures up to 140oF
(60oC).
We designed the PCA-6143P with SBC (Single Board Computer)
applications in mind. It incorporates a single-voltage power supply
(+5 V) and a connector for PC/104 modules (Flat-panel/CRT VGA
controller or Flash/RAM/ROM disk).A built-in Flash/ROM disk
emulates a floppy disk drive of up to 1.44 MB capacity. It emulates
the 1st, 2nd, 3rd or 4th DOS drive, depending on the physical disks
installed and the DOS version. See AppendixA for details.
Built using CMOS technology, the PCA-6143P consumes very little
power. Its two SIMM (Single In-line Memory Module) DRAM
sockets accept 1 MB, 4 MB or 16MB SIMM modules for total on-
board memory of 1 to 32 MB.
You can also use this 8-layer CPU card to transform any system into a
32-bit 486 compatible computer, its all-in-one configuration freeing-
up valuable expansion slots. Its highly compact form and numerous
features make it an ideal cost/performance solution for high-end
commercial and industrial applications where high CPU speed and
low mean-time-to-repair are critical.
Chapter 1 Hardware Configuration 3
Specifications
åSystem
•CPU: 80486SX-25, 80486SX-33, 80486DX-33, 80486DX2-50,
80486DX2-66, or 80486DX4-100
•Bus interface: ISA (PC/AT) bus
•System performance:
150 MHz with an 80486DX-33 MHz CPU (Landmark speed V1.14)
•Data bus: 32-bit
•DMA channels: 7
•Interrupt levels: 15
•Processing ability: 32-bit
•Bus speed: 8 MHz
•Chipset: ALI M1219
•Real-time clock/calendar:
Uses DS-12887 RTC chip and quartz oscillator, powered by a
lithium battery for 10 years of data retention
åMemory
•DRAM memory: 1 MB to 32 MB
Uses 256Kx36 (SIMM-256-8), 1Mx36 (SIMM-1000-8) or 4Mx36
(SIMM-4000-8) SIMMs with access time of 80 ns or less
•Shadow RAM memory: Support for system and video BIOS of up
to 256 KB in 32 KB blocks
åI/O
•IDE hard disk drive interface: Supports up to two IDE (AT bus)
hard disk drives. BIOS enabled/disabled
•Floppy disk drive interface:
Supports up to two floppy disk drives, 5¼" (360 KB and 1.2 MB)
and/or 3½” (720 KB and 1.44 MB). BIOS enabled/disabled
4PCA-6143P User's Manual
•Enhanced bi-directional parallel port: Configurable to LPT1,
LPT2, LPT3 or disabled. Standard female DB-25 connector
provided
•Serial ports: One serial RS-232 port, one serial RS-232/422/485
port. Ports can be individually configured as COM1, COM2 or
disabled
åIndustrial features
•Watchdog timer:
BIOS configurable to disabled or programmable ON/OFF. The
time-out interval is 0.5 sec. ~ 16 min. 48 sec.Your program uses
hex 043 and 443 to control the watchdog
•PC/104 connector:
A PC/104 16-bit bus connector for optional modules such as a
Flash/RAM/ROM disk module and/or Flat-panel/CRT VGA
modules
•Keyboard connectors: A 6-pin mini-DIN keyboard connector is
located on the mounting bracket for easy access.An external
keyboard adapter is also included. An on-board keyboard pin header
connector is also available.
åGeneral
•Max power required: + 5 V @ 2 A
•Power supply voltage: +5 V (4.75 V to 5.25 V)
•Operating temperature: 32 to 140oF (0 to 60oC)
•Size: 7.3" (L) x 4.8" (W) (185 mm x 122 mm)
•Weight: 1.1 lbs (0.5 Kg)
•EMI: Pending
•MTBF: 64,500 hrs @ 25oC; 39,100 hrs @ 60oC
Chapter 1 Hardware Configuration 5
Locating components
This section identifies the location of the card's major components. It
also includes a list of the function of each of the card jumpers. The
following figure gives an overall view of the card.
PCA-6143P PCB Layout
RS-232
RS-232/422
/485
14.318
24M
AMERICAN MEGATRENDS
AMIBIOS
386SX BIOS
486 SX/DX INDUSTRIAL CPU CARD REV.B1
J2
J1
COM1COM2
X2
X2
ALI
M1219-40
U1
J3
DALLAS
DS12887
SMC
FDC37C665
AMIKEY
8042
1 2 3 4 5
ON
SW1
JP1 JP2 JP3 JP4
U1
JP9 JP10
JP12
U2
U3
U5 U6
U8
U9
JP7 JP8 JP14 JP15 JP16
U23
U21
U18
U15
JP18
JP17 JP19
JP27 JP28
JP20 JP23
JP24
JP25
JP26
JP29
JP30
JP31
Q2
01
JP13
JP11
JP22
ROM1
ROM2
ROM3
6PCA-6143P User's Manual
Jumpers and connectors
Connectors on the board link it to external devices such as hard disk
drives, a keyboard or PC/104 modules. In addition, the board has a
number of jumpers which you use to configure it for your application.
The table below lists the function of each of the board jumpers and
connectors. Later sections in this chapter give instructions on setting
jumpers and detailed information on each jumper setting. Chapter 3
gives instructions for connecting external devices to your card. Pin
assignments for each connector appear there or in Appendix D.
Jumpers and connectors
Number Function Page
J1 Keyboard connector 17
J2 SBC Power Connector 19
J3 Keyboard connector (6-pin mini-DIN) 17
JP1 Hard disk drive activity LED 18
JP2, 3 CPU type selection 60
JP4 Bus clock selection 9
JP7 Reset switch 17
JP8 Watchdog timer
invokes system reset or IRQ15 9
JP9 Power LED and keylock 18
JP10 Speaker connector 19
JP11 Print IRQ selection 24
JP12 Turbo switch 18
JP13 Turbo LED 19
JP14 Bypass POST 8
JP15 Display type - color/mono 9
JP17 Parallel port DACK selection 24
JP18 Parallel port DRQ selection 24
JP19,23,24 SSD device selection 49
JP20,22,25,26, COM2 RS-232/422/485 selection 21
27,28,29,30
JP31 CPU voltage selection 60
Chapter 1 Hardware Configuration 7
Number Function Page
CN1 HDD connector 16
CN2 FDD connector 15
CN3 Parallel/printer connector 16
CN4,CN5 PC/104 connectors 61
COM1 RS-232 serial port 20
COM2 RS-232/422/485 serial port 21
SIMM memory modules
On the left end of the card (away from the mounting bracket) are the
two SIMM (Single In-line Memory Module) sockets which hold the
card’s DRAM memory. If you ordered DRAM SIMMs along with
your card, the SIMMs may already be installed. If not, you should
install them as described in Appendix C.
Flash/RAM/ROM disk
At the right of the card are three 32-pin sockets which hold the
memory chips for the card's Flash/RAM/ROM disk. Instructions for
installing memory chips appear in Appendix A.
8PCA-6143P User's Manual
Safety precautions
Follow these simple precautions to protect yourself from harm and
your PC from damage.
1. To avoid electric shock always disconnect the power from your PC
chassis before you work on it. Don’t touch any components of the
CPU card or other cards while the PC is on.
2. Disconnect power before making any configuration changes. The
sudden rush of power as you connect a jumper or install a card
may damage sensitive electronic components.
3. Always ground yourself to remove any static charge before you
touch your CPU card. Be particularly careful not to touch the chip
connectors. Modern integrated electronic devices, especially CPUs
and memory chips, are extremely sensitive to static electric
discharges and fields. Keep the card in its anti-static packaging
when it is not installed in the PC and place it on a static dissipative
mat when you are working on it. Wear a grounding wrist strap for
continuous protection.
Jumper settings
This section tells how to set the jumpers to configure your card. It
gives the card default configuration and your options for each jumper.
After you set the jumpers and install the card, you will also need to
run the BIOS Setup program (discussed in Chapter 5) to configure the
serial port addresses, floppy/hard disk drive types and system operat-
ing parameters. Connections, such as hard-disk cables, appear in
Chapter 3.
Card default setting
We set the card’s jumpers at the factory for the most popular configu-
ration. If this configuration matches your needs, you may not need to
change the jumpers at all. The default configuration is as follows:
• Watchdog invokes system reset • Color display is attached
• Parallel port IRQ7, DRQ1, DACK1 • Bypass POST (JP14)
Chapter 1 Hardware Configuration 9
How to set jumpers
You configure your card to match the needs of your application by
setting jumpers. A jumper is the simplest kind of electric 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.
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.
Display type (JP15)
This jumper sets the display adapter type attached to your card. If you
are using a monochrome LCD or EL screen which uses a CGA, EGA,
VGA or other color display adapter, set JP15 to color.
JP15 Setting
Open Monochrome
Closed (default) Color
Watchdog timer system reset/IRQ15 (JP8)
When the watchdog timer activates (CPU processing has come to a
halt), it can reset the system or generate an interrupt on IRQ15. Set
jumper JP8 as shown in the following table:
JP8 Setting
1-2 System Reset
3-4 IRQ15
Bus clock selection (JP4)
JP4 Selection
1-2 Bus clk = CPU clk * 2/8
2-3 Bus clk = CPU clk * 2/6
10 PCA-6143P User's Manual
Card dimensions
Parallel Port Jumper Settings
Parallel Port IRQ selection (JP11)
JP11 IRQ no
1-2 IRQ7 (default)
2-3 IRQ5
Parallel Port DRQ selection (JP17)
JP17 DRQ no
1-2 DRQ1 (default)
2-3 DRQ3
Parallel Port DACK selection (JP18)
JP18 DACK no
1-2 DACK1 (default)
2-3 DACK3
The following figure gives card dimensions for SBC applications:
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