DSP-200/300
Dual Channel RS-422/485 PCMCIA
Asynchronous Adapter
for PCMCIA Card Standard compatible machines
User's Manual
INTERFACE CARDS FOR IBM PC/AT AND PS/2
QUATECH, INC.
5675 Hudson Industrial Parkway
Hudson, Ohio 44236
TEL: (330) 665-9000
FAX: (330) 665-9010
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Declaration of Conformity
Manufacturer's Name:
Quatech, Inc.
Manufacturer's Address:
662 Wolf Ledges Parkway
Akron, OH 44311 (USA)
Application of Council Directive:
89/336/EEC
Standards to which
Conformity is Declared:
* EN50081-1
(EN55022)
* EN50082-1
(IEC 801-2, IEC 801-3, & IEC 801-4)
Type of Equipment:
Equipment Class:
Information Technology Equipment
Commercial, Residential, & Light
Industrial
Product Name:
Model Number :
PCMCIA Card
DSP-200/300
DSP-200/300 (Rev. I and later) User's Manual
ii
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Table of Contents
Introduction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
DOS/Windows 3.x
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
DSP-200/300 Client Driver for DOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Client Driver Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Command Line Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Common Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
DSP-200/300 Enabler for DOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Command Line Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Common Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Windows 95/98/Millennium (ME)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Installing a DSP-200/300 Under Windows 95/98/ME . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
DSP-200/300 Resource Settings in Windows 95/98/ME . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Viewing Resource Settings with Device Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Changing Resource Settings with Device Manager . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Windows 2000
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Installing a DSP-200/300 Under Windows 2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
DSP-200/300 Resource Settings in Windows 2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Viewing Resource Settings with Device Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Changing Resource Settings with Device Manager . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Windows NT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Installing DSP-200/300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Hardware Information
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Auxiliary Channel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Auxiliary Channel: RTS-CTS Handshaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Auxiliary Channel: Handshaking Disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Half Duplex Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Termination Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
External Connections
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
iii
Quatech, Inc.
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1. Introduction
The DSP-200/300 is a dual channel RS-422/RS-485 asynchronous serial adapter for systems
equipped with PCMCIA Type II and/or Type III expansion sockets. The DSP-200/300 is a
PCMCIA Type II (5 mm) card and is PCMCIA PC Card Standard Specification 2.1 compliant.
The DSP-200/300's serial port is implemented using a 16C750 Universal Asynchronous
Receiver/Transmitter (UART), which is the recommended communications interface for
multitasking environments and with applications involving high data transfer rates.
PCMCIA Card
Cable Assembly
Standard D-9 Female (2)
Figure 1. DSP-200/300 Card and Cable Assembly
The DSP-200/300provides four differential signal pairs (two input and two output): TxD, RxD,
AUXOUT, and AUXIN. TxD and RxD are always present at the connector. The AUXOUT and
AUXIN signals can be used to support RTS/CTS handshaking, external clocking, or external
signal loopback. The default configuration is RTS/CTS handshaking, with RTS transmitted
through AUXOUT and CTS received through AUXIN. The role of AUXOUT and AUXIN can
be set when the DSP-200/300 is configured.
The DSP-200/300 may be configured to operate in either the Full Duplex or Half Duplex mode;
the DSP-200/300 may be configured so that the output drivers are always enabled,RTS or DTR
enable the output drivers, or the output drivers are automatically enabled only when data is being
transmitted. See the Hardware Information section for details on these topics.
Introduction
1-1
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2-1
DSP-200/300 (Rev. I and later) User's Manual
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2. DOS/Windows 3.x
Two configuration software programs are provided with the DSP-200/300: a Client Driver, and a
card Enabler. Both of these programs are executed from DOS (before entering Windows) and
allow operation of the DSP-200/300 in both the DOS and Windows 3.x environments. For
optimal operation, however, the Client Driver is the preferred method of installation and
configuration. The table below highlights the differences between these programs.
Client Driver (recommended)
File type: DOS device driver
Enabler
File type: DOS executable
Interfaces to PCMCIA Card and
Socket Services software
(PCMCIA host adapter
independent)
Interfaces directly to Intel
82365SL and other PCIC
compatible PCMCIA host adapters
Allows automatic configuration of Does not support automatic
DSP-200/300 adapters upon
insertion (Hot Swapping)
configuration of adapters upon
insertion (Hot Swapping)
Requires PCMCIA Card and
Socket Services software
Does not require PCMCIA Card
and Socket Services software
Figure 2. Client Driver versus Enabler for DOS/Windows 3.x.
Card and Socket Services software is commercially available from several vendors for most
desktop and laptop PCs. If you are unsure whether Card and Socket Services software is
currently installed on your system, install the DSP-200/300 Client Driver as discussed in
following section. When loaded, the Client Driver will display an error message if Card and
Socket Services software is not detected.
DOS/Windows 3.x
2-2
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2.1 DSP-200/300 Client Driver for DOS
In order to use the DSP-200/300 Client Driver, the system must be configured with Card and
Socket Services software. Card and Socket Services software is not provided with the
DSP-200/300 but is available from Quatech.
IMPORTANT:
Some versions of Card and Socket Services dated before 1993
do not support general purpose I/O cards. If after careful
installation of the Client Driver the adapter does not configure
or operate properly, an updated version of Card and Socket
Services may be required.
2.1.1 Client Driver Installation
The following procedure is used to install the DSP-200/300Client Driver:
1. Copy the Client Driver from the DSP-200/300 distribution diskette onto the system's
hard drive.
2. Using an ASCII text editor, open the system's CONFIG.SYS file located in the root
directory of the boot drive.
3. Locate the line(s) in the CONFIG.SYS file where the Card and Socket Services
software is installed.
4. AFTER the line(s) installing the Card and Socket Services software, add the
following line to the CONFIG.SYS file:
DEVICE
=
drive:\path\
DSP230CL.SYS options where options are the DSP-200/300 Client
Driver command line options discussed on the following pages.
5. Save the CONFIG.SYS file and exit the text editor.
6. Insert the DSP-200/300 into one of the system's PCMCIA slots.
NOTE: Since the DSP-200/300 Client Driver supports "Hot Swapping", it is not
necessary to have the DSP-200/300 installed when booting the system. By inserting the
card before booting, however, the Client Driver will report the adapter configuration
during the boot process thereby verifying the changes made to the CONFIG.SYS.
7. Reboot the system and note the message displayed when the DSP-200/300 Client
Driver is loaded. If the Client Driver reports an "invalid command line option",
correct the entry in the CONFIG.SYS file and reboot the system again. If the Client
Driver reports "Card and Socket Services not found", a version of Card and Socket
Services must be installed on the system or the DSP-200/300 Enabler program must
be used to configure the adapter. If the Client Driver reports the desired adapter
configuration, the installation process is complete and the DSP-200/300 may be
2-3
DSP-200/300 (Rev. I and later) User's Manual
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removed and/ or inserted from the system as desired. On each insertion into the
PCMCIA socket, the DSP-200/300 will be automatically reconfigured according to
the command line options.
2.1.2 Command Line Options
The DSP-200/300 Client Driver accepts up to eight command line arguments from the user to
determine the configuration of theDSP-200/300. If any arguments are provided, the Client
Driver will attempt to configure any DSP-200/300s with the options specified in the order they
are entered on the command line. Each argument must be enclosed in parenthesis and must be
separated from other arguments by a space on the command line. Within each argument, any or
all of the following parameters may be specified using a comma (no spaces) to separate each
parameter:
Baddress specifies a the base I/O address of the DSP-200/300in hexadecimal. This address
must reside on an even 8-byte boundary. If this option is omitted, a base address will
be assigned by Card and Socket Services.
Iirq
specifies the interrupt level (IRQ) of the DSP-200/300in decimal. irq must be one of
the following values: 3, 4, 5, 7, 9, 10, 11, 12, 14, 15, or 0 if no IRQ is desired. If this
option is omitted, an interrupt level will be assigned by Card and Socket Services.
Ssocket
Odriver
specifies which PCMCIA socket the DSP-200/300must be inserted into for this
configuration argument to be used. socket must be in the range 0 - 15. If this option
is omitted, the configuration argument will apply to DSP-200/300s inserted into any
socket.
specifies RS-422/485 output driver enable option for the DSP-200/300 port. The
DSP-200/300’s port may be configured for either full duplex or half duplex
operation with this option. If this option is omitted, the default setting is the
RS-422/485 port is configured for full duplex operation with the RS-422/485 output
drivers always enabled. In half duplex mode, the RS-422/485 transmitter may be
enabled and disabled via the RTS (request to send) or DTR (data terminal ready)
signals. Both RTS and DTR are controlled through the Modem Control Register of
the 16750. See the Hardware Information section for more information.
Option
o0
o1
o2
o3
Port Output Driver
Always Enabled
DTR Controlled
RTS Controlled
Auto-Toggle
Figure 3. DOS Client Output Enable Options.
DOS/Windows 3.x
2-4
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H
instructs the client driver to enable the RTS-CTS modem control handshake on the
RS-422/485 port. When modem control handshaking in enabled, the 16C750
UART’s RTS and CTS signals are connected to the RS-422/485 auxiliary channel.
The auxiliary channel may then be used for handshaking between the DSP-200/300’s
port and a peripheral device. When modem control handshaking is disabled, the
RTS and CTS signals from the 16C750 UART are looped back to each other. If this
option is omitted, the default setting is RTS-CTS modem control handshake
disabled. See the Hardware Information section for more information.
2.1.2.1 Example 1
DEVICE = C:\DSP-200\ DSP230CL.SYS
In example 1, no command line arguments are specified. The Client Driver will configure a
DSP-200/300 inserted into any socket with a base address and IRQ assigned by Card and Socket
Services. The DSP-200/300 RS-422/485 output drivers will always be enabled, and RTS-CTS
modem control handshaking will be disabled.
2.1.2.2 Example 2
DEVICE = C:\DSP-200\DSP230CL.SYS (b290,i11)
In example 2, a single command line argument is provided. The Client Driver will attempt to
configure a DSP-200/300 inserted into any socket with a base address of 290H and IRQ 11. If
address 290H or IRQ 11 is unavailable, the DSP-200/300 will not be configured. If the Client
Driver can successfully configure the DSP-200/300unit, the RS-422/485 output drivers will
always be enabled, and RTS-CTS modem control handshaking will be disabled.
2.1.2.3 Example 3
DEVICE = C:\DSP-200\DSP230CL.SYS(s0,b300,i5,o2)
In example 3, a single command line argument is provided. The Client Driver will attempt to
configure a DSP-200/300 inserted into socket 0 with a base address of 300H and IRQ 5. If
address 300H or IRQ 5 is unavailable, the DSP-200/300 will not be configured. In addition, if a
DSP-200/300 is inserted into any other socket, it will not be configured. If the Client Driver can
successfully configure the DSP-200/300, the RS-422/485 output drivers will be enabled and
disabled via the RTS signal, and RTS-CTS modem control handshaking will be disabled.
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DSP-200/300 (Rev. I and later) User's Manual
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2.1.2.4 Example 4
DEVICE = C:\DSP-200\DSP230CL.SYS(i5,h,b300)
In example 4, a single command line argument is provided. Because the parameter order is not
significant, the Client Driver will attempt to configure a DSP-200/300 inserted into any socket
with a base address of 300H and IRQ 5. If address 300H or IRQ 5 is unavailable, the
DSP-200/300 will not be configured. If the Client Driver can successfully configure the
DSP-200/300, the RS-422/485 output drivers will always be enabled, and RTS-CTS modem
control handshaking will be enabled on the RS-422/485 port’s auxiliary channel.
2.1.2.5 Example 5
DEVICE = C:\DSP-200\DSP230CL.SYS (b300,i5) (i10) ( )
In example 5, three command line arguments are provided. The Client Driver will first attempt
to configure a DSP-200/300 inserted into any socket with a base address of 300H and IRQ 5. If
address 300H or IRQ 5 is unavailable, the Client Driver will proceed to the second command line
argument and attempt to configure the card with a base address assigned by Card and Socket
Services and IRQ 10. If IRQ 10 is also unavailable, the Client Driver will proceed to the third
command line argument and attempt to configure the DSP-200/300 with a base address and an
IRQ assigned by Card and Socket Services. If the Client Driver can successfully configure the
DSP-200/300, the RS-422/485 output drivers for will always be enabled, and RTS-CTS modem
control handshaking will be disabled.
2.1.2.6 Example 6
DEVICE = C:\DSP-200\DSP230CL.SYS (b300,i5) ( ) (i10)
In example 6, the three command line arguments of example 5 have been rearranged. The Client
Driver will first attempt to configure a DSP-200/300 inserted into any socket with a base address
of 300H and IRQ 5. If address 300H or IRQ 5 is unavailable, the Client Driver will proceed to
the second command line argument and attempt to configure the card with a base address and
IRQ assigned by Card and Socket Services. Since the second command line argument includes
all available address and IRQ resources, the third command line argument will never be reached
by the Client Driver. It is the user's responsibility to place the command line arguments in a
logical order.
DOS/Windows 3.x
2-6
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2.1.2.7 Example 7
DEVICE = C:\DSP-200\DSP230CL.SYS (s0,b300,i5) (s1,b340,i10)
The type of configuration shown in example 7 may be desirable in systems where more than one
DSP-200/300 is to be installed. In this example, the Client Driver will attempt to configure a
DSP-200/300 inserted into socket 0 with a base address of 300H and IRQ 5. If the DSP-200/300
is inserted into socket 1, the Client Driver will attempt to configure it with base address 340H
and IRQ 10. This allows the user to force the DSP-200/300's address and IRQ settings to be
socket specific which may simplify cable connections and software development. As in the
previous examples, however, if the requested address or interrupt resources are not available, the
DSP-200/300 will not be configured.
2.1.3 Common Problems
Generic Client Drivers:
Many Card and Socket Services packages include a generic client driver (or SuperClient) which
configures standard I/O devices. If one of these generic client drivers is installed, it may
configure the DSP-200/300 causing the DSP-200/300 client driver to fail installation. In these
cases, the user should do one of the following:
1. Modify the operation of the generic client driver to disable the configuration of
modem/serial port cards. Consult the Card and Socket Services documentation for
availability and details of this feature.
2. Place the DSP-200/300 client driver before the generic client driver in the
CONFIG.SYS.
Available Resources:
One function of the Card and Socket Services software is to track which system resources
(memory addresses, I/O addresses, IRQs, etc.) are available for assignment to inserted PCMCIA
cards. Sometimes, however, the Card Services software assumes or incorrectly determines that a
particular resource is used when it is actually available. Most Card and Socket Services generate
a resource table in a file (typically in the form of an .INI file) which the user can modify to adjust
the available system resources. Consult the Card and Socket Services documentation for
availability and details of this feature.
Multiple Configuration Attempts:
Some Card and Socket Services have a setting which aborts the configuration process after a
single configuration failure (such as a request for an unavailable resource). The user should
change this setting to allow for multiple configuration attempts. Consult the Card and Socket
Services documentation for availability and details of this feature.
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Older Versions of Card and Socket Services:
Some versions of Card and Socket Services dated before 1993 do not support general purpose
I/O cards. If after careful installation of the Client Driver the DSP-200/300 does not configure or
operate properly, an updated version of Card and Socket Services may be required. Card and
Socket Services software is available from Quatech.
2.2 DSP-200/300 Enabler for DOS
For systems that are not operating PCMCIA Card and Socket Services software, the
DSP-200/300 DOS Enabler may be used to enable and configure the adapter. This Enabler,
DSP230EN.EXE, will operate on any DOS system using an Intel 82365SL or PCIC compatible
PCMCIA host adapter including the Cirrus Logic CL-PD6710 /6720, the VLSI VL82C146, and
the Vadem VG-365 among others.
IMPORTANT:
In order to use the DSP-200/300 Enabler for DOS, the system
MUST NOT be configured with Card and Socket Services
software. If a Card and Socket Services software is installed, the
DSP-200/300 Enabler may interfere with its operation and with the
device(s) it controls.
The DSP-200/300 Enabler does not support automatic configuration of adapters upon insertion,
more commonly referred to as "Hot Swapping". This means the adapter must be installed in one
of the system's PCMCIA sockets before executing DSP230EN.EXE. If more than one adapter is
installed in a system, the Enabler must be executed separately for each adapter. Furthermore,
DSP230EN.EXE should be executed to release the resources used by the adapter before it is
removed from the PCMCIA socket. Since PCMCIA adapters do not retain their configuration
after removal, any adapter that is removed from the system must be reconfigured with the
Enabler after re-inserting it into a PCMCIA socket.
IMPORTANT:
The Enabler requires a region of high DOS memory when configuring
a DSP-200/300. This region is 1000H bytes (4KB) long and by default
begins at address D0000H (the default address may be changed using
the "W" option). If a memory manager such as EMM386, QEMM, or
386Max is installed on the system, this region of DOS memory must
be excluded from the memory manager's control. Consult the
documentation provided with the memory manager software for
instructions on how to exclude this memory region.
DOS/Windows 3.x
2-8
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2.2.1 Command Line Options
To configure a DSP-200/300 in the system, the Enabler requires one command line argument
from the user to determine the configuration of the card. This argument must be enclosed in
parenthesis and within the argument, any or all of the following parameters may be specified
using a comma (no spaces) to separate each parameter:
Ssocket
specifies which PCMCIA socket the DSP-200/300 must be inserted into for this
configuration argument to be used. socket must be in the range 0 - 15. This option is
required if the 'R' option is not used.
Baddress specifies the base I/O address of the DSP-200/300 in hexadecimal. This address
must reside on an even 8-byte boundary. This option is required if the 'R' option is
not used.
Iirq
specifies the interrupt level (IRQ) of the DSP-200/300 in decimal. irq must be one
of the following values: 3, 4, 5, 7, 9, 10, 11, 12, 14, 15, or 0 if no IRQ is desired.
This option is required if the 'R' option is not used.
Waddress specifies the base address of the memory window required to configure the
DSP-200/300. Set address = D0 for a memory window at segment D000, address =
D8 for a memory window at segment D800, etc. Valid settings for address are C8,
CC, D0, D4, D8, and DC. If this option is omitted, a memory window at segment
D000 will be used.
Odriver
specifies RS-422/485 output driver enable option for theDSP-200/300. The
DSP-200/300’s port may be configured for either full duplex or half duplex
operation with this option. If this option is omitted, the default setting is the
RS-422/485 port is configured for full duplex operation with the RS-422/485 output
drivers always enabled. In half duplex mode, the RS-422/485 transmitter may be
enabled and disabled via the RTS (request to send) or DTR (data terminal ready)
signals. Both RTS and DTR are controlled through the Modem Control Register of
the 16750. See the Hardware Information section for more information.
Option
o0
o1
o2
o3
Output Driver
Always Enabled
DTR Controlled
RTS Controlled
Auto-toggle
Figure 4. DOS Enabler Output Enable Options.
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H
instructs the enabler to enable the RTS-CTS modem control handshake on the
RS-422/485 port. When modem control handshaking in enabled, the 16C750
UART’s RTS and CTS signals are connected to the RS-422/485 auxiliary channel.
The auxiliary channel may then be used for handshaking between the DSP-200/300’s
RS-422/485 port and a peripheral device. When modem control handshaking is
disabled, the RTS and CTS signals from the 16C750 UART are looped back to each
other. If this option is omitted, the default setting is RTS-CTS modem control
handshake disabled. See the Hardware Information section for more information .
Before removing a DSP-200/300 from its PCMCIA socket, the Enabler should be executed to
free the system resources allocated when the card was installed. For this operation the Enabler
provides on additional command line option:
R
instructs the enabler to release the resources previously allocated to the DSP-200/300
. When the 'R' option is used, any settings specified by the 'B', 'I', 'O', and 'H' options
are ignored.
2.2.1.1 Example 1
DSP230EN.EXE
In example 1, no command line argument is specified. The Enabler will report an error and
display the proper usage of the command.
2.2.1.2 Example 2
DSP230EN.EXE (s0,b300,i5)
In example 2, the Enabler will configure the DSP-200/300 in socket 0 with a base address of
300H and IRQ 5 using a configuration memory window at segment D000. The DSP-200/300
unit's RS-422/485 output drivers will always be enabled, and RTS-CTS modem control
handshaking will be disabled.
2.2.1.3 Example 3
DSP230EN.EXE (i10,h,b340,s1)
In example 3, the Enabler will configure the DSP-200/300 in socket 1 with a base address of
340H and IRQ 10 using a configuration memory window at segment D000. The DSP-200/300's
RS-422/485 output drivers will always be enabled, and RTS-CTS modem control handshaking
will be enabled on the RS-422/485 auxiliary channel.
DOS/Windows 3.x
2-10
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2.2.1.4 Example 4
DSP230EN.EXE (s0,b300,i3,wd8)
In example 4, the Enabler will configure the DSP-200/300 in socket 0 with a base address of
300H and IRQ 3 using a configuration memory window at segment D800. The DSP-200/300's
RS-422/485 output drivers will always be enabled, and RTS-CTS modem control handshaking
will be disabled
2.2.1.5 Example 5
DSP230EN.EXE (o1,i5,b340,s1)
In example 2, the Enabler will configure the DSP-200/300 in socket 1 with a base address of
340H and IRQ 5 using a configuration memory window at segment D000. The DSP-200/300's
RS-422/485 output drivers will be enabled and disabled via the DTR signal, and RTS-CTS
modem control handshaking will be disabled
2.2.1.6 Example 6
DSP230EN.EXE (s0,b300,i5,r)
In example 6, the Enabler will release the configuration used by the DSP-200/300 in socket 0
using a configuration memory window at segment D000. The base address and IRQ parameters
are ignored and may be omitted.
2.2.1.7 Example 7
DSP230EN.EXE (s1,r,wcc)
In example 7, the Enabler will release the configuration used by the DSP-200/300 in socket 1
using a configuration memory window at segment CC00.
2.2.2 Common Problems
Memory Range Exclusion:
The Enabler requires a region of high DOS memory when configuring aDSP-200/300. This
region is 1000H bytes (4KB) long and by default begins at address D0000H (the default address
may be changed using the "W" option). If a memory manager such as EMM386, QEMM, or
386Max is installed on the system, this region of DOS memory must be excluded from the
memory manager's control. Consult the documentation provided with the memory manager
software for instructions on how to exclude this memory region.
2-11
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Furthermore, some systems use the high memory area for BIOS shadowing to improve overall
system performance. In order for the Enabler to operate, any BIOS shadowing must be disabled
in the address range specified for the configuration window. BIOS shadowing can usually be
disabled through the system's CMOS setup utility.
Socket Numbers:
The Enabler requires the DSP-200/300's socket number to be specified on the command line and
the DSP-200/300 must be inserted into the socket before the Enabler is invoked. Some vendors
number their sockets from 1 to N while other vendors number their sockets from 0 to N-1. For
theDSP-200/300 Enabler, the lowest socket number in the system is designated socket 0.
Card and Socket Services Software:
In order to use the DSP-200/300 Enabler for DOS, the system MUST NOT be configured with
Card and Socket Services software. If a Card and Socket Services software is installed, the
Enabler may interfere with its operation and with the device(s) it controls. For systems
configured with Card and Socket Services, the DSP-200/300 Client Driver is the recommended
method of configuration.
DOS/Windows 3.x
2-12
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3-1
DSP-200/300 (Rev. I and later) User's Manual
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3. Windows 95/98/Millennium (ME)
To allow easy configuration of the DSP-200/300, an Windows 95/98/ME "INF" configuration
file has been written for the hardware. It supports the AUXIN/AUXOUT options and the
RS-422/485 output driver enable options for full and half duplex operation.
3.1 Installing a DSP-200/300 Under Windows 95/98/ME
1. Insert the DSP-200/300 into any available PC Card socket.
2. The first time a new PC Card type is installed the New Hardware Found window
opens. After this first installation Windows 95/98/ME will automatically detect and
configure the card. If the New Hardware Found window does not open, then skip to
the next section, “DSP-200/300 Resource Settings".
3. The New Hardware Found window provides several options to configure the
DSP-200/300 card. Click the "Search for the best driver for your device" option
button. Click "NEXT" to continue.
4. An "Install from Disk" dialog box should appear. Insert the Quatech COM CD file,
select the correct drive letter and path, and click "OK". Windows 95/98/ME will
browse the path for the aforementioned files.
5. During the installation process, it may be required to supply the computer with the
Windows 95/98/ME CD or installation CDs. Insert the CD and click "OK".
The DSP-200/300 PC Card should now be configured. With the default configuration, the
DSP-200/300's interrupt status register will be enabled, the 16C750 UART’s scratchpad
register will be disabled, the RS-422/485 output drivers will always be enabled, and
RTS-CTS modem control handshaking will be enabled. In the future, Windows 95/98/ME
will automatically recognize and configure the DSP-200/300 in this default configuration.
3.2 DSP-200/300 Resource Settings in Windows 95/98/ME
Windows 95/98/ME maintains a registry of all known hardware installed within the computer.
Inside this hardware registry Windows 95/98/ME keeps track of all the computer's resources,
such as base I/O addresses, IRQ levels, and DMA channels. In the case of a PC Card
(PCMCIA) type board, Windows 95/98/ME configures the new hardware using free resources it
finds within the hardware registry, and updates the registry automatically.
To view and/or edit hardware devices in Windows 95/98/ME use the system Device Manager.
To access Device Manager double click the System icon in the Windows 95/98/ME control
panel, or click the My Computer icon on the Windows 95/98/ME desktop with the right mouse
button and select Properties from the pull down menu. Consult Windows 95/98/ME on-line
help for details on the use of the Device Manager.
Windows 95/98/Millennium (ME)
3-2
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3.2.1Viewing Resource Settings with Device Manager
1. Start the Windows 95/98/ME Device Manager.
2. Double click on the hardware class Quatech Comm Adapters to list hardware
devices in the class.
3. The DSP-200/300 “parent device” belongs to this hardware class. The device name
for the DSP-200/300 is Quatech DSP-200/300: Dual RS-422/RS-485 Serial Port
PC Card.
4. Open the Properties dialog for the DSP-200/300 device, then click the Resources tab
to view the Input/Output Range and Interrupt Request resource allocations.
5. Double click the hardware class Ports (Com and LPT). Each Quatech
Communications Port listed in this class is a “child device” of the DSP-200/300
“parent device.”
6. Open the Properties dialog for a COM port, then click the Resources tab to view the
Input/Output Range and Interrupt Request resource allocations. These will match
those of the “parent device.”
7. Record the COM Port device names (COM1, COM2, etc.) for the DSP-200/300.
These names are required by Windows 95/98/ME applications when accessing
particular ports.
3.2.2Changing Resource Settings with Device Manager
1. Start the Windows 95/98/ME Device Manager.
2. Double click on the hardware class Quatech Comm Adapters to list hardware
devices in the class.
3. The DSP-200/300 “parent device” belongs to this hardware class. The device name
for the DSP-200/300 is Quatech DSP-200/300: Dual RS-422/RS-485 Serial Port
PC Card.
4. Open the Properties dialog for the DSP-200/300 device, then click the Resources tab
to view the Input/Output Range and Interrupt Request resource allocations.
5. Several predefined Basic Configurations have been included for the DSP-200/300
(see Figure 5. DSP-200/300 Basic Configuration Table). The Basic Configurations
provide many combinations of the operating modes and options listed below. See the
Hardware Information section of this manual for complete descriptions.
; RS-422/485 output drivers enable option: The DSP-200/300’s ports may be
configured for either full duplex or half duplex operation with this option. The
default setting is the RS-422/485 ports are configured for full duplex operation with
the RS-422/485 output drivers always enabled. In half duplex mode, the RS-422/485
3-3
DSP-200/300 (Rev. I and later) User's Manual
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transmitter may be enabled and disabled via the RTS (request to send) or DTR (data
terminal ready) signals, or set to enable only when data is being transmitted
(auto-toggle). Both RTS and DTR are controlled through the Modem Control
Register of the 16750.
When the Use Automatic Settings check box is enabled Windows 95/98/ME will
attempt to configure the DSP-200/300 in the order listed in the Basic Configurations
table.
Windows 95/98/Millennium (ME)
3-4
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Basic
Configuration
0000
0001
0002
0003
0004
0005
0006
0007
0008
0009
000A
000B
000C
000D
000E
000F
0010
0011
0012
0013
0014
0015
0016
0017
0018
0019
001A
001B
001C
001D
001E
001F
0020
0021
0022
0023
0024
0025
0026
0027
0028
0029
002A
002B
002C
002D
002E
002F
Auxiliary
Connections**
Loopback
Loopback
Loopback
Loopback
Loopback
Handshaking
Clocking
Loopback
Loopback
Loopback
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
I/O Range***
RS-422/485
Clock
Speed
Normal
8x
Normal
Normal
Normal
Normal
Normal
8x
Scratch Pad/
ISR
Output Drivers
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
8x
8x
8x
8x
Normal
Normal
Normal
Normal
Normal
Normal
8x
Auto Toggle
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Auto Toggle
Auto Toggle
8x
8x
8x
8x
Handshaking
Clocking
Handshaking
Clocking
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
8x
Loopback
Loopback
Loopback
Loopback
Loopback
Handshaking
Clocking
Loopback
Loopback
Loopback
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Normal
8x
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Normal
Normal
Normal
Normal
Normal
8x
8x
8x
8x
8x
Normal
Normal
Normal
Normal
Normal
Normal
8x
Auto Toggle
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Auto Toggle
Auto Toggle
8x
8x
8x
8x
Handshaking
Clocking
Handshaking
Clocking
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
8x
3-5
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** Handshaking indicates RTS routed to AUXOUT, AUXIN routed to CTS, and TCLK routed to RCLK.
Loopback indicates RTS routed to CTS, AUXIN routed to AUXOUT, and TCLK routed to RCLK.
Clocking indicates RTS routed to CTS, AUXIN routed to RCLK, and TCLK routed to AUXOUT.
*** Any indicates variable value; this value may or may not be user selectable depending on platform.
6. Select a Basic Configurations that displays "No conflicts" in the bottom display
region titled Conflicting Device List from the drop down list. Some applications
may not be able to access ports higher than COM4. To use the DSP-200/300
PCMCIA serial ports with these applications you might be forced to remove other
serial communications devices from your system
7. To modify the Interrupt Request setting click the resource name and click the
Change Setting button. An Edit Resource window will open up. Inside this window
click on the up/down arrows to the right of the Interrupt Request value. This scrolls
you through all of the allowable resources for your hardware. Pay attention to the
conflict information at the bottom of the window. Do not select a value that causes a
conflict with any other installed hardware.
8. If any changes have been made to the DSP-200/300’s configuration the card will
automatically be reconfigured to the new resources specified. Any time aPCMCIA
card of this type is inserted Windows 95/98/ME will attempt to configure the card at
these resource settings. Click the Use Automatic Settings box to reset this card type
for automatic configuration.
3.3 Frequently Asked Questions
Basic Configuration List Not Available:
A problem noted on some systems is after a basic configuration has been manually selected the
basic configurations list for the DSP-200/300 is no longer available. The solution to this
problem is to check the “Use Automatic Settings” box and allow Windows 95/98/ME to
reconfigure the DSP-200/300 card. The basic configurations list should once again be visible.
Base I/O Address Resource Modification Not Allowed:
The DSP-200/300 is configured to allow only a fixed number of base I/O addresses. To change
the I/O address resources for the DSP-200/300 select another “Basic Configuration”. Refer to
the Basic Configurations table for a list of the availabe I/O address resources for the
DSP-200/300
Windows 95/98/Millennium (ME)
3-6
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4-1
DSP-200/300 (Rev. I and later) User's Manual
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4 Windows 2000
To allow easy configuration of the DSP-200/300, an Windows 2000 "INF" configuration file
has been written for the hardware. This configuration file supports the DSP-200/300 in both
addressing modes: block mode and “com” mode. Additionally, the RTS-CTS modem control
handshake option and the RS-422/485 output driver enable option for full and half duplex
operation is supported.
4.1 Installing a DSP-200/300 Under Windows 2000.
1. Insert the Quatech COM CD into an available CD-ROM.
2. Insert the DSP-200/300 into any available PC Card socket.
3. You will be prompted tosearch for the correct driver. Choose the drive where the
quatech COM CD is located and select “Browse” from the ‘Files Needed’ window.
Windows 2000
4-2
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4. Double click ‘Serial Port Adapters’
5. Double click ‘Drivers’
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6. Double click on ‘Windows 2000, XP, for PCI, PCMCIA, ISA’
7. Click on ‘qserbrd’ and select open.
Windows 2000
4-4
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8. Select ‘OK’ at the ‘Files Needed’ window
9. The same process as above in steps 1-9 will apply for the next file ‘qserpt.inf’. In step
7 be sure to choose ‘qserpt.inf’ and select ‘Open’.
4.2 DSP-200/300 Resource Settings in Windows 2000
Windows 2000 maintains a registry of all known hardware installed within the computer. Inside
this hardware registry Windows 2000 keeps track of all the computer's resources, such as base
I/O addresses, IRQ levels, and DMA channels. In the case of a PC Card (PCMCIA) type board,
Windows 2000 configures the new hardware using free resources it finds within the hardware
registry, and updates the registry automatically.
To view and / or edit hardware devices in Windows 2000 use the system Device Manager.
To access Device Manager double click the System icon in the Windows 2000 control panel, or click the My
Computer icon on the Windows 2000 desktop with the right mouse button and select Properties from the pull
down menu. Click on the Hardware tab then click on the Device Manager. Consult Windows 2000 on-line help
for details on the use of the Device Manager
Windows 2000 handles the DSP-200/300 as a "parent/child device".
v The DSP-200/300 is the "parent device" and is listed under the hardware class Quatech
Multiport Serial Devices in the device manager
v Each serial port is a "child device" of the "parent device" DSP-200/300 (Quatech
PCMCIA Serial Port). There are 2 child COM ports for the DSP-200/300 (Quatech
PCMCIA Serial Port) which are listed under the hardware class Ports (Com & LPT).
4-5
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4.2.1 Viewing Resource Settings with Device Manager
1. Start the Windows 2000 Device Manager.
2. Double click on the hardware class Quatech Multiport Serial Devices to list
hardware devices in the class.
3. The DSP-200/300 “parent device” belongs to this hardware class. The device name
for the DSP-200/300 is Quatech DSP-200/300 PCMCIA Two-Port RS-422/RS-485
Serial Adapter. (Figure 10)
4. Open the Properties dialog for the DSP-200/300 device, then click the Resources tab
to view the Input/Output Range and Interrupt Request resource allocations. Examine
and remember the Input/Output Range, then close the properties window.
5. Double click the hardware class Ports (Com and LPT). Each Quatech PCMCIA
Serial Port listed in this class is a “child device” of the DSP-200/300 “parent
device.”
Windows 2000
4-6
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6. Use the COM Port device names (COM5, COM6, etc.) to access any of the particular
serial ports on the DSP-200/300. These names are required by Windows 2000
applications when accessing particular ports.
4.2.2 Changing Resource Settings with Device Manager
1. Start the Windows 2000 Device Manager.
To access Device Manager double click the System icon in the Windows 2000 control panel, or click
the My Computer icon on the Windows 2000 desktop with the right mouse button and select
Properties from the pull down menu. Click on the Hardware tab then click on the Device Manager.
Consult Windows 2000 on-line help for details on the use of the Device Manager
2. Double click on the hardware class Quatech Multiport Serial Devices to list
hardware devices in the class. (Figure 10)
3. The DSP-200/300 “parent device” belongs to this hardware class. The device name
for the DSP-200/300 is Quatech DSP-200/300 PCMCIA Two-Port RS-422/RS-485
Serial Adapter. (Figure 10)
4-7
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4. Open the Properties dialog for the DSP-200/300 device (Figure 12), then click the
Advanced tab to view the clock rate settings.
Windows 2000
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Data Rate Multiplier
Description
Clock Mode Max bps
Auto clock mode enables applications to request any
baud rate up to 921,600. The hardware drivers will
select the correct clock multiplier based on the baud
rate requested
The X1 clock mode mimics a standard COM port. The
hardware drivers lock the clock to the standard rate.
The port will run at the baud rate requested by the
application.
Auto
X1
921,600
115,200
The X2 clock mode locks the ports hardware clock at
double the standard rate. The baud rate the port runs at
will always be double the rate requested by the
applications. This mode is useful for legacy
applicattions which cannot request baud rates over
115,200
The X4 clock mode locks the ports hardware clock at
four times the standard rate. The baud rate the port
runs at will always be four times the rate requested by
the application. This mode is useful for legacy
applications which cannot request baud rates over
115.200.
The X8 clock mode locks the ports hardware clock at
eight times the standard rate. The baud rate the port
runs at will always be eight times the rate requested by
the application. This mode is useful for legacy
applications which cannot request baud rates over
115.200.
X2
X4
X8
230,400
460,800
921,600
5. Click the RS-422/485 tab to view the transmitter enable and connector pinout option.
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4-10
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RS-422/485 Connector Setup
RTS routed to CTS, AUXIN routed to
AUXOUT, and TCLK routed to RCLK.
Used when external handshaking or
clocking signals are not available.
RTS routed to AUXOUT, AUXIN
routed to CTS, and TCLK routed to
RCLK. Used when RTS/CTS
handshaking is required.
Loopback All
Modem Control
RTS routed to CTS, AUXIN routed to
RCLK, and TCLK routed to AUXOUT.
Used to connect ports transmitting at
different baud rates. In order to
function, all ports must have and use
this feature.
Clocks
Receive Control
Receivers are always enabled. In a Half
Duplex mode, you will receive what you
transmit (sometimes called echo).
Always Receive
Receivers are only enabled when not
transmitting. In a Half Duplex mode,
you will not receive what you transmit.
When NOT Tranmitting
RS-422/485 Duplex Mode
Transmitters and receivers are always
enabled; ports can send and receive
simultaneously. Used in four-wire
communication.
Full Duplex
RTS is set to enable the transmitters.
Used in two-wire communication.
DTR is set to enable the transmitters.
Used in two-wire communication
Hardware automatically enables the
transmitters when transmitting.
Transmitters will turn off three bit-times
after the last stop bit of the last
character, regardless of baud rate. Used
in two-wire communication.
Half Duplex using RTS
Half Duplex using DTR
Auto Toggle
6. Click the Resources tab to view the Input/Output Range and Interrupt Request
resource allocations. If options that are not available on the preceding pages are
required, a different basic configuration will have to be selected. To do this, de-select
the Use Automatic Settings box and choose the basic configuration that corresponds
to the set of options required.
4-11
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Basic
Configuration
0000
Auxiliary
Connections**
Loopback
Loopback
Loopback
Loopback
Loopback
Handshaking
Clocking
Loopback
Loopback
Loopback
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
I/O Range***
RS-422/485
Output Drivers
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
Clock
Speed
Normal
8x
Normal
Normal
Normal
Normal
Normal
8x
Scratch Pad/
ISR
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
0001
0002
0003
0004
0005
0006
0007
0008
0009
0010
0011
0012
0013
0014
0015
0016
8x
8x
8x
8x
Normal
Normal
Normal
Normal
Normal
Normal
8x
Auto Toggle
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Auto Toggle
ISR
ISR
ISR
ISR
0017
0018
0019
Auto Toggle
8x
Windows 2000
4-12
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0020
0021
0022
0023
0024
0025
0026
0027
0028
0029
0030
0031
0032
0033
0034
0035
0036
0037
0038
0039
0040
0041
0042
0043
0044
0045
0046
0047
0048
Handshaking
Clocking
Handshaking
Clocking
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Memory
Mapped
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
8x
8x
8x
ISR
ISR
ISR
ISR
8x
Loopback
Loopback
Loopback
Loopback
Loopback
Handshaking
Clocking
Loopback
Loopback
Loopback
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Normal
8x
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Normal
Normal
Normal
Normal
Normal
8x
8x
8x
8x
8x
Normal
Normal
Normal
Normal
Normal
Normal
8x
Auto Toggle
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Auto Toggle
Auto Toggle
8x
8x
8x
8x
8x
1x
Handshaking
Clocking
Handshaking
Clocking
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Always Enabled
Loopback
** Handshaking indicates RTS routed to AUXOUT, AUXIN routed to CTS, and TCLK routed to RCLK.
Loopback indicates RTS routed to CTS, AUXIN routed to AUXOUT, and TCLK routed to RCLK.
Clocking indicates RTS routed to CTS, AUXIN routed to RCLK, and TCLK routed to AUXOUT.
*** Any indicates variable value; this value may or may not be user selectable depending on platform.
7. Select a Basic Configuration that displays "No conflicts" in the bottom display
region titled Conflicting Device List from the drop down list.
8. Windows 2000 should have chosen an available Interrupt Request setting
automatically when the I/O address range was configured by a Basic Configuration
selection. This default Interrupt Request setting should not need changed as long
as "No conflicts" is displayed in the bottom display region titled Conflicting Device
List. If you are satisfied with Windows 2000 selection then skip the next step.
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9. To modify the Interrupt Request setting click the resource name and click the
Change Setting button. An Edit Resource window will open up. Inside this window
click on the up/down arrows to the right of the Interrupt Request value. This scrolls
you through all of the allowable resources for your hardware. Pay attention to the
conflict information at the bottom of the window. Do not select a value that causes a
conflict with any other installed hardware.
10. If any changes have been made to theDSP-200/300’s configuration the card will
automatically be reconfigured to the new resources specified. Any time aPCMCIA
card of this type is inserted Windows 2000 will attempt to configure the card at these
resource settings. Click the Use Automatic Settings box to reset this card type for
automatic configuration
Windows 2000
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5 Windows NT
5.1 Installing DSP-200/300
To allow easy configuration of the DSP-200/300 the Quatech Device Manager for Windows NT
has been written for the hardware. This configuration utility supports the DSP-200/300 only in
block addressing mode.
To begin the installation, open Windows Explorer and search for the ‘Setup.exe’ command to
install the Quatech Device Manager. <See following Windows Explorer figure.> (D:\Serial Port
Adapters\Drivers\Windows NT 4.0 for PCI, PCMCIA,ISA). Once the installation is complete an
icon will be placed on the desktop.
Windows NT Explorer
Windows NT
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1. Locate and double click the Quatech Device Manager icon on the desktop
Device Manager Icon on Desktop
2. Click the ‘Add’ button at the bottom of the Quatech Device Manager Window
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3. Follow the steps for the ‘Add Quatech Hardware Wizard’.
Windows NT
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4. Complete the final steps of the installation, shut down Windows NT and then insert
the PCMCIA Card and re-boot the computer.
Additional help is available online
The DSP-200/300 PC Card should now be configured. In the future, Windows NT will
automatically recognize and configure the DSP-200/300.
Note: Windows NT does not support ‘Plug and Play’ for PCMCIA cards. The PCMCIA Card
must be inserted prior to starting Windows NT and can not be removed and reinserted while
Windows NT is running.
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6. Hardware Information
6.1 Auxiliary Channel Configuration
An auxiliary channel is provided which allows for handshaking between the DSP-200/300 port
and a peripheral device. This auxiliary channel may be configured in one of two ways:
v RTS-CTS handshake enabled.
v handshaking is disabled.
6.1.1 Auxiliary Channel: RTS-CTS Handshaking.
The RTS-CTS handshake may be enabled so that RTS (request to send) is the auxiliary output
signal on AUX OUT+ (pin 1) and AUX OUT- (pin 6). Similarly, CTS (clear to send) is the
auxiliary input signal on AUX IN+ (pin 5) and AUX IN- (pin 9). This configuration is shown
below.
RS-422/485
Drivers/Receivers
16C550
UART
DATA OUT
+
TXD
Driver
-
DATA IN
AUX OUT
AUX IN
+
-
RXD
Receiver
Driver
+
-
-RTS
+
-
-CTS
Receiver
Figure 9. Auxiliary Channel RTS-CTS Handshaking
Hardware Information
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6.1.2 Auxiliary Channel: Handshaking Disabled.
The DSP-200/300 ports may be configured so that the RTS-CTS handshake is disabled. This is
the default configuration. In this configuration, RTS and CTS from the 16C750 UART will be
looped back to each other. In addition, the auxiliary output and input signals will be looped back
to each other. This configuration is shown below:
RS-422/485
Drivers/Receivers
16C550
UART
DATA OUT
+
TXD
Driver
-
DATA IN
AUX OUT
AUX IN
+
-
RXD
Receiver
Driver
+
-
-RTS
+
-
-CTS
Receiver
Figure 10. Auxiliary Channel Handshaking Disabled
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6.2 Half Duplex Operation
The DSP-200/300’s ports may be configured for either full duplex or half duplex operation. By
default, the RS-422/485 ports are configured for full duplex operation with the RS-422/485
output drivers always enabled.
In half duplex mode, the RS-422/485 transmitter may be enabled and disabled via the RTS
(request to send) or DTR (data terminal ready) signals. Both RTS and DTR are controlled
through the Modem Control Register of the 16750.
3 Options:
Data Out
Half Duplex
+
RS-422/485
Driver
-
-RTS
-DTR
Active Low
MUX
Output Enable
16C550
Aux Out
Full Duplex
+
-
RS-422/485
Driver
NOTE: One of these three options must be selected via
software configuration. Full duplex operation is
the default mode.
Figure 11. RS-422/485 Driver Enable Options
If RTS is selected as the signal to enable the output drivers, setting 'bit 1' of the Modem Control
Register (to logic '1') will enable the output drivers and clearing 'bit 1' of the Modem Control
Register (to logic '0') will force the outputs into a high impedance state.
Similarly, if DTR is chosen as the signal to enable the output drivers setting 'bit 0' of the Modem
Control Register (to logic '1') will enable the output drivers and clearing 'bit 0' of the Modem
Control Register (to logic '0') will force the outputs into a high impedance state.
Hardware Information
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Selection of half duplex mode operation is dependent upon the configuration software and/or the
operating system used. Each of these, however, ultimately control the half duplex mode by
accessing the PCMCIA Configuration Register on the DSP-200/300.
CAUTION:
When operating in half duplex mode, the transmitter output drivers
must be disabled before receiving any information. Failure to do so
will result in two output drivers being connected together which
may cause damage to the adapter, the computer, and/or the
peripheral equipment.
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6.3 Termination Resistors
No termination resistors are provided on the DSP-200/300 ports. Both output and input signals
are connected only to the external connector. Any termination which is required must be added
externally.
RS-422/485 Receiver
RXD+
RXD-
+
-
Rt
Rt
RS-422/485 Receiver
+
AUXIN+
AUXIN-
-
Recommended Termination Resistor Values
RS-422
RS-485
100 ohm 1/2W resistor
60 ohms total resistance
(120 ohms at each end)
Figure 12. RS-422/485 Termination
Hardware Information
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7. External Connections
An adapter cable is included with the DSP-200/300 to convert the 9-pin PCMCIA output
connector into a standard D-9 female connector, data terminal equipment (DTE), as shown in the
figures below.
Standard D-9
(Male)
Figure 14. DSP-200/300 Adapter Cable.
AUXOUT+
DATAOUT+
GND
1
2
3
4
5
AUXOUT-
DATAOUT-
DATAIN -
AUXIN -
6
7
8
9
DATAIN+
AUXIN+
D-9 Female Connector
Figure 15. RS-422/485 Signal Assignment.
External Connections
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8. Specifications
Bus Interface
PCMCIA
PC Card Standard 2.1 compliant
Physical Dimensions
Maximum Baud Rate
Type II PCMCIA card (5mm)
921.6K
Power Requirements
+5 volts
20 mA (typical)
30 mA
(maximum)
Connector
Adapter to standard female D-9
Specifications
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DSP-200/300
User's Manual
Revision 3.12
March 2004
P/N 940-0075-312
Quatech, Inc.
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