Advantech PCA-6143P User manual

Chapter 1 Hardware Configuration 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

COM1COM2

ALI

M1219-40

DALLAS

DS12887

SMC

FDC37C665

AMIKEY

8042

1 2 3 4 5

SW1

JP1 JP2 JP3 JP4

JP9 JP10

JP12

U5 U6

JP7 JP8 JP14 JP15 JP16

U23

U21

U18

U15

JP18

JP17 JP19

JP27 JP28

JP20 JP23

JP24

JP25

JP26

JP29

JP30

JP31

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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