Advantech PCM-3641 Manual

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PCM-3641PCM-3641

PCM-3641

4-por4-por

4-por

t RS-232 High-Speed Modulet RS-232 High-Speed Module

t RS-232 High-Speed Module

PC/104 and the PC/104 logo are trademarks of the PC/104 Consortium Part no. 2000364100 1st Edition Printed in Taiwan August 2000

PCM-3641 4-port RS-232 High-Speed Module

Introduction

The PCM-3641 is a PC/104-compatible 4-port High-Speed

RS-232 serial interface module. It works with PC/104 CPU

modules or CPU cards which accept PC/104 expansion

modules. It provides four independent serial interfaces,

accessed through male DB-9 connectors.

The module’s industry-standard 16C550 asynchronous

communication chip is fully programmable. The module

requires no special commands or control codes if you use

the standard COM1 ~ COM4 port addresses.

Features

•Four independent RS-232 serial ports

•Transmission speeds up to 460 Kbps

•Independent/Shared IRQ settings for each of 4 serial

ports

•Wide IRQ selection: 3, 4, 5, 6, 7, 9, 10, 11, 12, 15

•Supports Standard DOS COM1, COM2, COM3, and

COM4

•Supports DOS/Windows 3.1 (PC-ComLib), Windows 95/

98/NT

•LED indicators: TX, RX

•Compatible with standard PC ports: COM1, COM2,

COM3, COM4

•On-board interrupt status register for greater throughput

•Complete RS-232 Modem-control signals

Specification:

•Bus interface: ISA

•Number of ports: 4

•I/O address: 0x0200 ~ 0x03F8

•IRQ: 3, 4, 5, 6, 7, 9, 10, 11, 12, 15

•Data bits: 5, 6, 7, 8

•Stop bits: 1, 1.5, 2

•Parity: none, even, odd

•Speed (bps): 50 ~ 460 K

•Connectors: Four DB-9 male

•Data signals: TxD, RxD, RTS, CTS, DTR, DSR, DCD, RI,

GND

•Power requirement: +5V@200 mA (Typical) ;

+5V@ 250 mA (Max.)

•Clock input: 14.7456 MHz

•Operating Temperature.: 0 ~ 65° C (refer to IEC-

68-1-1, 2)

•Storage Temperature: -25 ~ 80° C

Initial inspection

We carefully inspected the PCM-3641 both

mechanically and electrically before we shipped it.

It should be free of marks and scratches and in

perfect electrical order on receipt.

Handle the board only by its edges. The static

charge on your body may damage its integrated

circuits. Keep the card in its anti-static package

whenever it is not installed. You can use this

package to return the card if it should need repair.

Board Layout

MODE 1

SPEED

MODE 0

+ + + ++ + + +

D4 D5 D6 D7 D8

MODE0:

MODE1:

ON-Standard

OFF-Enhance

ON-SHARE IRQ

OFF-Indep IRQ

SPEED: ON-8X

OFF-1X

RP1

RP2

RP4

RP5

JP7 CH/1

JP7 CH/2

JP7 CH/3

JP7 CH/4

RP3

VECTOR ADDRESS BASE ADDRESSSW1SW2

PCM-3641 REV. A1 01-1 4 PORT RS-232

Card Conguration

Each port on the PCM-3641 card has jumpers and

2 DIP switches which require configuring prior to

use. The DIP switches set the port to the

appropriate I/O address and different modes. The

jumpers set the port’s IRQ.

2PCM-3641 User's Manual

ONON

MODE 0

Default Settings

The board is shipped with default settings. If you need to

change these settings, however, see the following sections.

Otherwise, you can simply install the card.

PCM-3641 Default Configuration

Setting Default Function

JP1 IRQ 5

Speed Mode 1 x

IRQ mode Share

Base Address Address 300H

Vector Address Interrupt 280H

Standard/ Enhanced Enhance

Operating System Windows 95/98/NT

Jumper and switch settings

The PCM-3641 can function in many different modes

according to your application needs. These modes include

Standard/Enhance Mode, Independent/Shared IRQ Mode,

Speed Mode and Operating System Mode. Details of these

specific modes are described as follows:

Standard/Enhanced Mode (MODE0)

The PCM-3641 can be used in standard or enhanced

mode. In standard mode the I/O addresses are compatible

with the standard PC communication ports, COM1~COM4.

In enhanced mode you can select a different base address.

The offset of each port from the base address is fixed. You

can use MODE0 of DIP switch SW1 to select standard or

enhanced mode.

Standard mode

In standard mode, the I/O address of the ports are as

follows:

Port I/O address Interrupt No.

Port 1 3F8 Selectable

Port 2 2F8 Selectable

Port 3 3E8 Selectable

Port 4 2E8 Selectable

Enhanced mode

SW1

In enhanced mode, you can select a different base address.

The base address determines the address for each of the

four ports.

The I/O addresses for the four ports are as follows:

Port I/O address

Port 1 Base + 00H

Port 2 Base + 08H

Port 3 Base + 10H

Port 4 Base + 18H

You use switches 1~6 of DIP switch SW1, a 7-position DIP

switch, to set the base address. You can set the base

address anywhere from hex 200 to 3F8.

To set the base address, you have to calculate the base

address as follows:

Note: On the PCM-3641 the address line A9 does not

appear on the DIP switch as it is permanently hard-

wired to HEX 200 on the card.

The following table shows different base address settings.

Port base address (SW1)

Base Address A3 A4 A5 A6 A7 A8

200 - 207 l l l l l l

208 - 20F ¡ l l l l l

*300 - 307 l l l l l ¡

3E8 - 3EF ¡ l ¡ ¡ ¡ ¡

3F8 - 3FF ¡ ¡ ¡ ¡ ¡ ¡

l: ON ¡: OFF * : Default

Note: If your CPU module or card has serial interface

ports, you will need to adjust the I/O port addresses

(or disable the ports) to avoid conflicts.

Independent/Shared IRQ mode

(MODE1, JP1, JP2, JP3, JP4)

The card’s IRQ can be set up using MODE1 of SW2.

Please note that the DIP switch is for setting the mode as

shown below.

ONON

MODE 0

SW1

ONON

Base address Decimal HEX

line value value

A3 8 8

A4 16 10

A5 32 20

A6 64 40

A7 128 80

A8 256 100

A9 512 200

Produkt Specifikationer

Mærke:	Advantech
Kategori:	Ikke kategoriseret
Model:	PCM-3641

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