Quatech RS-232 User manual

ESC(LP)-100
Eight Channel Low Profile RS-232
Asynchronous Communications Adapter
for PCI bus
User's Manual
QUATECH, INC. TEL: [phone]
5675 Hudson Industrial Parkway FAX: [phone]
Hudson, Ohio 44236 http://www.quatech.com

WARRANTY INFORMATION
Quatech, Inc. warrants the ESC(LP)-100 to be free of defects for
five (5) years from the date of purchase. Quatech, Inc. will repair or
replace any board that fails to perform under normal operating conditions
and in accordance with the procedures outlined in this document during
the warranty period. Any damage that results from improper installation,
operation, or general misuse voids all warranty rights.
Please complete the following information and retain for your
records. Have this information available when requesting warranty
service.
DATE OF PURCHASE:
MODEL NUMBER: ESC(LP)-100
PRODUCT DESCRIPTION: Eight Channel Low Profile RS-232
Asynchronous PCI Bus
Communications Adapter
SERIAL NUMBER:
ii ESC(LP)-100 User's Manual

©2006, Quatech, Inc.
NOTICE
The information contained in this document cannot be reproduced
in any form without the written consent of Quatech, Inc. Likewise, any
software programs that might accompany this document can be used only
in accordance with any license agreement(s) between the purchaser and
Quatech, Inc. Quatech, Inc. reserves the right to change this
documentation or the product to which it refers at any time and without
notice.The authors have taken due care in the preparation of this
document and every attempt has been made to ensure its accuracy and
completeness. In no event will Quatech, Inc. be liable for damages of any
kind, incidental or consequential, in regard to or arising out of the
performance or form of the materials presented in this document or any
software programs that might accompany this document.
Quatech, Inc. encourages feedback about this document. Please
send any written comments to the Technical Support department at the
address listed on the cover page of this document.
DOS, Windows 95/98/2000/ME, Windows NT are trademarks or registered
trademarks of Microsoft Corporation. OS/2 is a registered trademark of IBM
Corporation. All other trademarks or registered trademarks are property of their
respective owners.
iii ESC(LP)-100 User's Manual

Declaration of Conformity
Manufacturer's Name: Quatech Inc.
Manufacturer's Address: 5675 Hudson Industrial Parkway
Hudson, Ohio 44236 (USA)
Application of Council Directive: 89/336/EEC
Standards to which
Conformity is Declared: * EN50081-1 (EN55022,
EN60555-2, EN60555-3)
* EN50082-1 (IEC 801-2,
IEC 801-3, & IEC 801-4)
Type of Equipment: Information Technology
Equipment
Equipment Class: Commercial, Residential, & Light
Industrial
Product Name: PCI Eight-Port Serial
Communications
Card
Model Number : ESC(LP)-100
iv ESC(LP)-100 User's Manual

Table of Contents
30
10 Troubleshooting ...............................
29
9 Specifications ....................................
28
8 PCI Resource Map ..............................
26
7 External Connections ..........................
24
6.3.1 QTPCI.EXE .....................................23
6.3 DOS and other operating systems .................23
6.2 OS/2 ...............................................23
6.1 Windows NT ......................................23
6 Other Operating Systems .....................
17
5.1.1 Changing Resource Settings with Device
Manager ..............................................
14
5.1 Viewing Resources with Device Manager .........12
5.4.1 Using the "New Hardware Found" Wizard .......12
5.4 Windows 95 .......................................10
5.3 Windows 98 .......................................9
5.2 Windows 2000 ......................................8
5.1 Windows Millennium ..............................8
5 Windows Configurations ......................
7
4.4.2 Clock Rate Multiplier ...........................6
4.4.1 Enhanced Serial Adapter Identification ..........6
4.4 Options Register ...................................5
4.3 Interrupt Status Register ...........................5
4.2 Enabling the Special Registers ......................4
4.1 Base Address and Interrupt Level (IRQ) ............4
4 Address Map and Special Registers .........
3
3 Hardware Installation ..........................
2
2 Hardware Configuration .......................
1
1 General Information ............................
vESC(LP)-100 User's Manual

vi ESC(LP)-100 User's Manual

1General Information
The Quatech, Inc. ESC(LP)-100 provides eight RS-232 asynchronous
serial communication interfaces for Low Profile IBM-compatible personal
computer systems using the PCI expansion bus. The ESC(LP)-100 uses
Quatech's new Enhanced Serial Adapter design. Legacy serial port data
rates are limited to a maximum of 115,200 bits per second. Quatech
Enhanced Serial Adapters can achieve data rates as high as 921,600 bits
per second.
As a PCI device, the ESC(LP)-100 requires no hardware
configuration. The card is automatically configured by the computer's
BIOS or operating system. The eight serial ports share a single interrupt
line and are addressed in a contiguous block of 64 bytes. Aspecial
interrupt status register is provided to help software to manage the
shared interrupt.
The ESC(LP)-100's serial ports are implemented using
16750-compatible Universal Asynchronous Receiver/Transmitters
(UARTs). These UARTs contain hardware buffers (FIFOs) which reduce
processing overhead and allow higher data rates to be achieved.
The ESC(LP)-100 is supported under several popular operating
systems and environments. Contact the sales department for details on
current software offerings. Most device drivers are available for
download from the Quatech world wide web site at
http://www.quatech.com.
ESC(LP)-100 User's Manual 1

2Hardware Configuration
The ESC(LP)-100 is automatically configured at boot time by the
computer's BIOS or operating system. There are no switches or jumpers to
set for installation. See Section 5.5 for instructions on how to use
Windows Device Manager to view and change resource settings.
ESC(LP)-100 User's Manual 2

3Hardware Installation
1.Turn off the power of the computer system in which the
ESC(LP)-100 is to be installed.
2.Remove the system cover according to the instructions provided by
the computer manufacturer.
3.Install the ESC(LP)-100 in any empty PCI expansion slot. The board
should be secured by installing the Option Retaining Bracket (ORB)
screw.
4.Replace the system cover according to the instructions provided by
the computer manufacturer.
5.Attach and secure the cable connectors to the desired equipment.
6.Turn on the power of the computer system.
Figure 1: ESC(LP)-100 board outline
The output of the ESC(LP)-100 is a 68-pin VHDCI connector. A
choice of cablesis provided to convert the VHDCI into either eight
standard male D-9connectors or eight 10-pin RJ-45 connectors with all
control signals provided to each port (RTS,DTR,CTS, DSR,DCD, and
RI).
ESC(LP)-100 User's Manual 3

4Address Map and Special Registers
This chapter explains how the eight UARTs and special registers
are addressed, as well as the layout of those registers. This material will
be of interest to programmers writing driver software for the
ESC(LP)-100.
4.1Base Address and Interrupt Level (IRQ)
The base address and IRQ used by the ESC(LP)-100 are determined
by the BIOS or operating system. Each serial port uses 8 consecutive I/O
locations. The eight ports reside in a single block of I/O space in eight
byte increments, for a total of 64 contiguous bytes, as shown in Figure 2.
Base Address + 56 to Base Address + 63Serial 8
Base Address + 48 to Base Address + 55Serial 7
Base Address + 40 to Base Address + 47Serial 6
Base Address + 32 to Base Address + 39Serial 5
Base Address + 24 to Base Address + 31Serial 4
Base Address + 16 to Base Address + 23Serial 3
Base Address + 8 to Base Address + 15Serial 2
Base Address + 0 to Base Address + 7Serial 1
I/O Address RangePort
Figure 2--- Port Address Map
All eight serial ports share the same IRQ. The ESC(LP)-100 signals
a hardware interrupt when any port requires service. The interrupt signal
is maintained until no port requires service. Interrupts are level-sensitive
on the PCI bus.
The base address and IRQ are automatically detected by the device
drivers Quatech supplies for various operating systems. For cases where
no device driver is available, such as for operation under DOS, Quatech
supplies the "QTPCI" DOS software utility for manually determining the
resources used. See Section 6.3.1 for details.
ESC(LP)-100 User's Manual 4